mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-11-20 15:15:18 +00:00
Merge remote-tracking branch 'agost/rust-vdf' into perf-grinder
This commit is contained in:
Cassandra Heart
commit
cb43c42cf2
@ -4,3 +4,6 @@
|
||||
github.env
|
||||
Taskfile.yaml
|
||||
|
||||
# Rust
|
||||
target
|
||||
vdf/generated
|
||||
|
||||
4
.gitignore
vendored
4
.gitignore
vendored
@ -8,3 +8,7 @@ ceremony-client
|
||||
.env.signers
|
||||
.task
|
||||
node-tmp-*
|
||||
build
|
||||
|
||||
# Rust
|
||||
target
|
||||
|
||||
34
CONTRIBUTING.md
Normal file
34
CONTRIBUTING.md
Normal file
@ -0,0 +1,34 @@
|
||||
# Local development
|
||||
|
||||
The following software is required for local development (assuming MacOS ARM):
|
||||
|
||||
- Go 1.20
|
||||
- Rust toolchain
|
||||
- GMP 6.3: `brew install gmp`
|
||||
- Install the Go plugin for uniffi-rs: `cargo install uniffi-bindgen-go --git https://github.com/NordSecurity/uniffi-bindgen-go --tag v0.2.1+v0.25.0`
|
||||
|
||||
# Building release binaries
|
||||
|
||||
The following is software is required to build release binaries (assuming MacOS
|
||||
ARM) :
|
||||
|
||||
- [Local development](#local-development) dependencies
|
||||
- Docker
|
||||
- [Taskfile](https://taskfile.dev/)
|
||||
|
||||
Then from the repo root use the following commands to build the release binaries
|
||||
that statically link the [native VDF](./crates/vdf) for the supported platforms:
|
||||
|
||||
```shell
|
||||
task build_node_arm64_macos
|
||||
task build_node_arm64_linux
|
||||
task build_node_arm64_macos
|
||||
```
|
||||
|
||||
The output binaries will be in `node/build`.
|
||||
|
||||
# Testing
|
||||
|
||||
Testing the [`vdf`](./vdf) and [`node`](./node) packages requires linking the
|
||||
[native VDF](./crates/vdf). The `test.sh` scripts in the respective directories
|
||||
help with this.
|
||||
1201
Cargo.lock
generated
Normal file
1201
Cargo.lock
generated
Normal file
File diff suppressed because it is too large
Load Diff
25
Cargo.toml
Normal file
25
Cargo.toml
Normal file
@ -0,0 +1,25 @@
|
||||
# Copyright 2018 Chia Network Inc and POA Networks Ltd.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# and limitations under the License.
|
||||
[workspace]
|
||||
members = [
|
||||
"crates/vdf",
|
||||
"crates/classgroup",
|
||||
]
|
||||
|
||||
[profile.release]
|
||||
# rpath = false is important to make Go bindings work
|
||||
rpath = false
|
||||
lto = true
|
||||
debug = false
|
||||
# panic = 'abort'
|
||||
33
Dockerfile
33
Dockerfile
@ -1,4 +1,20 @@
|
||||
FROM golang:1.20.14-alpine3.19 as build
|
||||
FROM golang:1.20.14-bullseye as build-base
|
||||
|
||||
ENV PATH="${PATH}:/root/.cargo/bin/"
|
||||
|
||||
# Install GMP 6.2 (6.3 which MacOS is using only available on Debian unstable)
|
||||
RUN apt-get update && apt-get install -y \
|
||||
libgmp-dev \
|
||||
&& rm -rf /var/lib/apt/lists/*
|
||||
|
||||
COPY docker/rustup-init.sh /opt/rustup-init.sh
|
||||
|
||||
RUN /opt/rustup-init.sh -y --profile minimal
|
||||
|
||||
# Install uniffi-bindgen-go
|
||||
RUN cargo install uniffi-bindgen-go --git https://github.com/NordSecurity/uniffi-bindgen-go --tag v0.2.1+v0.25.0
|
||||
|
||||
FROM build-base as build
|
||||
|
||||
ENV GOEXPERIMENT=arenas
|
||||
|
||||
@ -6,16 +22,27 @@ WORKDIR /opt/ceremonyclient
|
||||
|
||||
COPY . .
|
||||
|
||||
## Generate Rust bindings for VDF
|
||||
WORKDIR /opt/ceremonyclient/vdf
|
||||
RUN ./generate.sh
|
||||
|
||||
# Build and install the node
|
||||
WORKDIR /opt/ceremonyclient/node
|
||||
|
||||
RUN go install ./...
|
||||
RUN ./build.sh && cp node /go/bin
|
||||
RUN go install github.com/fullstorydev/grpcurl/cmd/grpcurl@latest
|
||||
|
||||
# Build and install qclient
|
||||
WORKDIR /opt/ceremonyclient/client
|
||||
|
||||
RUN go build -o qclient ./main.go
|
||||
|
||||
FROM alpine:3.19
|
||||
# Allows exporting single binary
|
||||
FROM scratch AS node
|
||||
COPY --from=build /go/bin/node /node
|
||||
ENTRYPOINT [ "/node" ]
|
||||
|
||||
FROM debian:bullseye
|
||||
|
||||
ARG NODE_VERSION
|
||||
ARG GIT_REPO
|
||||
|
||||
@ -25,6 +25,22 @@ tasks:
|
||||
- echo -n "Branch :" && echo " {{.GIT_BRANCH}}"
|
||||
- echo -n "Commit :" && echo " {{.GIT_COMMIT}}"
|
||||
silent: true
|
||||
|
||||
build_node_arm64_macos:
|
||||
desc: Build the Quilibrium node binary for MacOS ARM. Assumes it's ran from the same platform. Outputs to node/build.
|
||||
cmds:
|
||||
- vdf/generate.sh
|
||||
- node/build.sh -o build/arm64_macos/node
|
||||
|
||||
build_node_arm64_linux:
|
||||
desc: Build the Quilibrium node binary for ARM64 Linux. Outputs to node/build.
|
||||
cmds:
|
||||
- docker build --platform linux/arm64 -f Dockerfile --output node/build/arm64_linux --target=node .
|
||||
|
||||
build_node_amd64_linux:
|
||||
desc: Build the Quilibrium node binary for AMD64 Linux. Outputs to node/build.
|
||||
cmds:
|
||||
- docker build --platform linux/amd64 -f Dockerfile --output node/build/amd64_linux --target=node .
|
||||
|
||||
build:
|
||||
desc: Build the Quilibrium docker image, unless it is already built.
|
||||
|
||||
@ -24,8 +24,8 @@ require (
|
||||
github.com/minio/sha256-simd v1.0.1 // indirect
|
||||
github.com/pmezard/go-difflib v1.0.0 // indirect
|
||||
go.uber.org/multierr v1.11.0 // indirect
|
||||
golang.org/x/crypto v0.18.0 // indirect
|
||||
golang.org/x/sys v0.17.0 // indirect
|
||||
golang.org/x/crypto v0.24.0 // indirect
|
||||
golang.org/x/sys v0.21.0 // indirect
|
||||
gopkg.in/yaml.v2 v2.4.0 // indirect
|
||||
gopkg.in/yaml.v3 v3.0.1 // indirect
|
||||
source.quilibrium.com/quilibrium/monorepo/nekryptology v0.0.0-00010101000000-000000000000 // indirect
|
||||
|
||||
@ -89,8 +89,8 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
|
||||
golang.org/x/crypto v0.0.0-20200115085410-6d4e4cb37c7d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
|
||||
golang.org/x/crypto v0.0.0-20200510223506-06a226fb4e37/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
|
||||
golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
|
||||
golang.org/x/crypto v0.18.0 h1:PGVlW0xEltQnzFZ55hkuX5+KLyrMYhHld1YHO4AKcdc=
|
||||
golang.org/x/crypto v0.18.0/go.mod h1:R0j02AL6hcrfOiy9T4ZYp/rcWeMxM3L6QYxlOuEG1mg=
|
||||
golang.org/x/crypto v0.24.0 h1:mnl8DM0o513X8fdIkmyFE/5hTYxbwYOjDS/+rK6qpRI=
|
||||
golang.org/x/crypto v0.24.0/go.mod h1:Z1PMYSOR5nyMcyAVAIQSKCDwalqy85Aqn1x3Ws4L5DM=
|
||||
golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63 h1:m64FZMko/V45gv0bNmrNYoDEq8U5YUhetc9cBWKS1TQ=
|
||||
golang.org/x/net v0.0.0-20180719180050-a680a1efc54d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
|
||||
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
|
||||
@ -103,8 +103,8 @@ golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7w
|
||||
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20210420205809-ac73e9fd8988/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.17.0 h1:25cE3gD+tdBA7lp7QfhuV+rJiE9YXTcS3VG1SqssI/Y=
|
||||
golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
|
||||
golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
|
||||
golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
|
||||
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
|
||||
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
||||
|
||||
34
crates/classgroup/Cargo.toml
Normal file
34
crates/classgroup/Cargo.toml
Normal file
@ -0,0 +1,34 @@
|
||||
# Copyright 2018 POA Networks Ltd.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# and limitations under the License.
|
||||
[package]
|
||||
name = "classgroup"
|
||||
version = "0.1.0"
|
||||
authors = ["Demi M. Obenour <demiobenour@gmail.com>"]
|
||||
description = """An implementation of class groups in Rust. Uses GMP for arithmetic."""
|
||||
keywords = ["classgroup", "vdf"]
|
||||
repository = "https://github.com/poanetwork/vdf"
|
||||
license = "Apache-2.0"
|
||||
edition = "2018"
|
||||
|
||||
[dependencies]
|
||||
num-traits = "0.2"
|
||||
libc = "0.2"
|
||||
|
||||
[dev-dependencies]
|
||||
criterion = ">=0.2"
|
||||
|
||||
[[bench]]
|
||||
name = "classgroup-bench"
|
||||
harness = false
|
||||
path = "bench/bench.rs"
|
||||
66
crates/classgroup/bench/bench.rs
Normal file
66
crates/classgroup/bench/bench.rs
Normal file
@ -0,0 +1,66 @@
|
||||
// Copyright 2018 POA Networks Ltd.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
#[macro_use]
|
||||
extern crate criterion;
|
||||
|
||||
use classgroup::{gmp_classgroup::GmpClassGroup, ClassGroup};
|
||||
use criterion::Criterion;
|
||||
use gmp::mpz::Mpz;
|
||||
use std::str::FromStr;
|
||||
|
||||
fn bench_square(c: &mut Criterion) {
|
||||
for _ in 0..2 {
|
||||
let m_2048 = -Mpz::from_str(
|
||||
"201493927071865251625903550712920535753645598483515670853547009\
|
||||
878440933309489362800393797428711071833308081461824159206915864\
|
||||
150805748296170245037221957772328044276705571745811271212292422\
|
||||
075849739248257870371300001313586036515879618764093772248760562\
|
||||
386804073478433157526816295216137723803793411828867470089409596\
|
||||
238958950007370719325959579892866588928887249912429688364409867\
|
||||
895510817680171869190054122881274299350947669820596157115994418\
|
||||
034091728887584373727555384075665624624856766441009974642693066\
|
||||
751400054217209981490667208950669417773785631693879782993019167\
|
||||
69407006303085854796535778826115224633447713584423",
|
||||
)
|
||||
.unwrap();
|
||||
|
||||
let m_1024 = -Mpz::from_str(
|
||||
"-11208471744389096429663063172516742066731683613191418514476174383781\
|
||||
682509882427394963852743081347678693241523614532942268295868231081182\
|
||||
819214054220080323345750407342623884342617809879459211722505867733607\
|
||||
400509994975706778681543998242335468203860240586171413971485860382901\
|
||||
6409314686266660248501773529803183",
|
||||
)
|
||||
.unwrap();
|
||||
let group_1024 = GmpClassGroup::generator_for_discriminant(m_1024);
|
||||
let group_2048 = GmpClassGroup::generator_for_discriminant(m_2048);
|
||||
let (group_1024_clone, group_2048_clone) = (group_1024.clone(), group_2048.clone());
|
||||
c.bench_function("square 1024", move |b| {
|
||||
b.iter(|| group_1024_clone.clone().square())
|
||||
});
|
||||
c.bench_function("multiply 1024", move |b| {
|
||||
b.iter(|| &group_1024 * &group_1024)
|
||||
});
|
||||
c.bench_function("square 2048", move |b| {
|
||||
b.iter(|| group_2048_clone.clone().square())
|
||||
});
|
||||
c.bench_function("multiply 2048", move |b| {
|
||||
b.iter(|| &group_2048 * &group_2048)
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
criterion_group!(benches, bench_square);
|
||||
criterion_main!(benches);
|
||||
16
crates/classgroup/build.rs
Normal file
16
crates/classgroup/build.rs
Normal file
@ -0,0 +1,16 @@
|
||||
use std::env;
|
||||
|
||||
fn main() {
|
||||
println!("cargo:rerun-if-changed=build.rs");
|
||||
|
||||
let target = env::var("TARGET").expect("cargo should have set this");
|
||||
if target == "aarch64-apple-darwin" {
|
||||
println!("cargo:rustc-link-search=/opt/homebrew/Cellar/gmp/6.3.0/lib");
|
||||
} else if target == "aarch64-unknown-linux-gnu" {
|
||||
println!("cargo:rustc-link-search=/usr/lib/aarch64-linux-gnu/");
|
||||
} else if target == "x86_64-unknown-linux-gnu" {
|
||||
println!("cargo:rustc-link-search=/usr/lib/x86_64-linux-gnu/");
|
||||
} else {
|
||||
panic!("unsupported target {target}");
|
||||
}
|
||||
}
|
||||
7
crates/classgroup/src/gmp/ffi.rs
Normal file
7
crates/classgroup/src/gmp/ffi.rs
Normal file
@ -0,0 +1,7 @@
|
||||
use super::mpz::*;
|
||||
|
||||
#[link(name = "gmp", kind = "static")]
|
||||
extern "C" {
|
||||
pub fn __gmpz_fdiv_q(q: mpz_ptr, n: mpz_srcptr, d: mpz_srcptr);
|
||||
pub fn __gmpz_cdiv_q(q: mpz_ptr, n: mpz_srcptr, d: mpz_srcptr);
|
||||
}
|
||||
12
crates/classgroup/src/gmp/mod.rs
Normal file
12
crates/classgroup/src/gmp/mod.rs
Normal file
@ -0,0 +1,12 @@
|
||||
#![warn(deprecated)]
|
||||
#![allow(non_camel_case_types)]
|
||||
|
||||
extern crate libc;
|
||||
extern crate num_traits;
|
||||
|
||||
mod ffi;
|
||||
pub mod mpz;
|
||||
pub mod sign;
|
||||
|
||||
#[cfg(test)]
|
||||
mod test;
|
||||
1035
crates/classgroup/src/gmp/mpz.rs
Normal file
1035
crates/classgroup/src/gmp/mpz.rs
Normal file
File diff suppressed because it is too large
Load Diff
7
crates/classgroup/src/gmp/sign.rs
Normal file
7
crates/classgroup/src/gmp/sign.rs
Normal file
@ -0,0 +1,7 @@
|
||||
#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Hash, Debug)]
|
||||
pub enum Sign {
|
||||
Negative,
|
||||
Zero,
|
||||
Positive,
|
||||
}
|
||||
|
||||
582
crates/classgroup/src/gmp/test.rs
Normal file
582
crates/classgroup/src/gmp/test.rs
Normal file
@ -0,0 +1,582 @@
|
||||
use super::mpz::mp_limb_t;
|
||||
use std;
|
||||
use libc::c_int;
|
||||
|
||||
#[link(name = "gmp", kind = "static")]
|
||||
extern "C" {
|
||||
static __gmp_bits_per_limb: c_int;
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[allow(unsafe_code)]
|
||||
fn test_limb_size() {
|
||||
// We are assuming that the limb size is the same as the pointer size.
|
||||
assert_eq!(std::mem::size_of::<mp_limb_t>() * 8,
|
||||
unsafe { __gmp_bits_per_limb as usize });
|
||||
}
|
||||
|
||||
mod mpz {
|
||||
use super::super::mpz::Mpz;
|
||||
use super::super::mpz::ProbabPrimeResult;
|
||||
use super::super::sign::Sign;
|
||||
use std::str::FromStr;
|
||||
use std::convert::{From, Into};
|
||||
use std::{i64, u64};
|
||||
|
||||
use std::hash::{Hash, Hasher};
|
||||
use std::collections::hash_map::DefaultHasher;
|
||||
|
||||
#[test]
|
||||
fn test_set() {
|
||||
let mut x: Mpz = From::<i64>::from(1000);
|
||||
let y: Mpz = From::<i64>::from(5000);
|
||||
assert!(x != y);
|
||||
x.set(&y);
|
||||
assert!(x == y);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_set_from_str_radix() {
|
||||
let mut x: Mpz = From::<i64>::from(1000);
|
||||
let y: Mpz = From::<i64>::from(5000);
|
||||
assert!(x != y);
|
||||
assert!(x.set_from_str_radix("5000", 10));
|
||||
assert!(x == y);
|
||||
assert!(!x.set_from_str_radix("aaaa", 2));
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn test_from_str_radix_lower_bound() {
|
||||
let _ = Mpz::from_str_radix("", 1);
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn test_from_str_radix_upper_bound() {
|
||||
let _ = Mpz::from_str_radix("", 63);
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn test_set_from_str_radix_lower_bound() {
|
||||
let mut x = Mpz::new();
|
||||
x.set_from_str_radix("", 1);
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn test_set_from_str_radix_upper_bound() {
|
||||
let mut x = Mpz::new();
|
||||
x.set_from_str_radix("", 63);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_eq() {
|
||||
let x: Mpz = From::<i64>::from(4242142195);
|
||||
let y: Mpz = From::<i64>::from(4242142195);
|
||||
let z: Mpz = From::<i64>::from(4242142196);
|
||||
|
||||
assert!(x == y);
|
||||
assert!(x != z);
|
||||
assert!(y != z);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_ord() {
|
||||
let x: Mpz = FromStr::from_str("40000000000000000000000").unwrap();
|
||||
let y: Mpz = FromStr::from_str("45000000000000000000000").unwrap();
|
||||
let z: Mpz = FromStr::from_str("50000000000000000000000").unwrap();
|
||||
|
||||
assert!(x < y && x < z && y < z);
|
||||
assert!(x <= x && x <= y && x <= z && y <= z);
|
||||
assert!(z > y && z > x && y > x);
|
||||
assert!(z >= z && z >= y && z >= x && y >= x);
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn test_div_zero() {
|
||||
let x: Mpz = From::<i64>::from(1);
|
||||
let y = Mpz::new();
|
||||
drop(x / y)
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn test_rem_zero() {
|
||||
let x: Mpz = From::<i64>::from(1);
|
||||
let y = Mpz::new();
|
||||
drop(x % y)
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_div_round() {
|
||||
let x: Mpz = From::<i64>::from(2);
|
||||
let y: Mpz = From::<i64>::from(3);
|
||||
assert!((&x / &y).to_string() == (2i32 / 3).to_string());
|
||||
assert!((&x / -&y).to_string() == (2i32 / -3).to_string());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_rem() {
|
||||
let x: Mpz = From::<i64>::from(20);
|
||||
let y: Mpz = From::<i64>::from(3);
|
||||
assert!((&x % &y).to_string() == (20i32 % 3).to_string());
|
||||
assert!((&x % 3).to_string() == (20i32 % 3).to_string());
|
||||
assert!((&x % -&y).to_string() == (20i32 % -3).to_string());
|
||||
assert!((-&x % &y).to_string() == (-20i32 % 3).to_string());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_add() {
|
||||
let x: Mpz = From::<i64>::from(2);
|
||||
let y: Mpz = From::<i64>::from(3);
|
||||
let str5 = 5i32.to_string();
|
||||
assert!((&x + &y).to_string() == str5);
|
||||
assert!((&x + 3).to_string() == str5);
|
||||
assert!((&y + 2).to_string() == str5);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_sub() {
|
||||
let x: Mpz = From::<i64>::from(2);
|
||||
let y: Mpz = From::<i64>::from(3);
|
||||
assert!((&x - &y).to_string() == (-1i32).to_string());
|
||||
assert!((&y - &x).to_string() == 1i32.to_string());
|
||||
assert!((&y - 8).to_string() == (-5i32).to_string());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_mul() {
|
||||
let x: Mpz = From::<i64>::from(2);
|
||||
let y: Mpz = From::<i64>::from(3);
|
||||
assert!((&x * &y).to_string() == 6i32.to_string());
|
||||
assert!((&x * 3i64).to_string() == 6i32.to_string());
|
||||
assert!((&y * -5i64).to_string() == (-15i32).to_string());
|
||||
// check with values not fitting in 32 bits
|
||||
assert!((&x * 5000000000i64).to_string() == 10000000000i64.to_string());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_to_str_radix() {
|
||||
let x: Mpz = From::<i64>::from(255);
|
||||
assert!(x.to_str_radix(16) == "ff".to_string());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_to_string() {
|
||||
let x: Mpz = FromStr::from_str("1234567890").unwrap();
|
||||
assert!(x.to_string() == "1234567890".to_string());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_invalid_str() {
|
||||
let x: Result<Mpz, _> = FromStr::from_str("foobar");
|
||||
assert!(x.is_err());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_clone() {
|
||||
let a: Mpz = From::<i64>::from(100);
|
||||
let b = a.clone();
|
||||
let aplusb: Mpz = From::<i64>::from(200);
|
||||
assert!(b == a);
|
||||
assert!(a + b == aplusb);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_from_int() {
|
||||
let x: Mpz = From::<i64>::from(150);
|
||||
assert!(x.to_string() == "150".to_string());
|
||||
assert!(x == FromStr::from_str("150").unwrap());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_from_slice_u8() {
|
||||
let v: Vec<u8> = vec!(255, 255);
|
||||
let x: Mpz = From::from(&v[..]);
|
||||
assert!(x.to_string() == "65535".to_string());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_abs() {
|
||||
let x: Mpz = From::<i64>::from(1000);
|
||||
let y: Mpz = From::<i64>::from(-1000);
|
||||
assert!(-&x == y);
|
||||
assert!(x == -&y);
|
||||
assert!(x == y.abs());
|
||||
assert!(x.abs() == y.abs());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_div_floor() {
|
||||
let two: Mpz = From::<i64>::from(2);
|
||||
let eight: Mpz = From::<i64>::from(8);
|
||||
let minuseight: Mpz = From::<i64>::from(-8);
|
||||
let three: Mpz = From::<i64>::from(3);
|
||||
let minusthree: Mpz = From::<i64>::from(-3);
|
||||
assert_eq!(eight.div_floor(&three), two);
|
||||
assert_eq!(eight.div_floor(&minusthree), minusthree);
|
||||
assert_eq!(minuseight.div_floor(&three), minusthree);
|
||||
assert_eq!(minuseight.div_floor(&minusthree), two);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_mod_floor() {
|
||||
let one: Mpz = From::<i64>::from(1);
|
||||
let minusone: Mpz = From::<i64>::from(-1);
|
||||
let two: Mpz = From::<i64>::from(2);
|
||||
let minustwo: Mpz = From::<i64>::from(-2);
|
||||
let three: Mpz = From::<i64>::from(3);
|
||||
let minusthree: Mpz = From::<i64>::from(-3);
|
||||
let eight: Mpz = From::<i64>::from(8);
|
||||
let minuseight: Mpz = From::<i64>::from(-8);
|
||||
assert_eq!(eight.mod_floor(&three), two);
|
||||
assert_eq!(eight.mod_floor(&minusthree), minusone);
|
||||
assert_eq!(minuseight.mod_floor(&three), one);
|
||||
assert_eq!(minuseight.mod_floor(&minusthree), minustwo);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_bitand() {
|
||||
let a = 0b1001_0111;
|
||||
let b = 0b1100_0100;
|
||||
let mpza: Mpz = From::<i64>::from(a);
|
||||
let mpzb: Mpz = From::<i64>::from(b);
|
||||
let mpzres: Mpz = From::<i64>::from(a & b);
|
||||
assert!(mpza & mpzb == mpzres);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_bitor() {
|
||||
let a = 0b1001_0111;
|
||||
let b = 0b1100_0100;
|
||||
let mpza: Mpz = From::<i64>::from(a);
|
||||
let mpzb: Mpz = From::<i64>::from(b);
|
||||
let mpzres: Mpz = From::<i64>::from(a | b);
|
||||
assert!(mpza | mpzb == mpzres);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_bitxor() {
|
||||
let a = 0b1001_0111;
|
||||
let b = 0b1100_0100;
|
||||
let mpza: Mpz = From::<i64>::from(a);
|
||||
let mpzb: Mpz = From::<i64>::from(b);
|
||||
let mpzres: Mpz = From::<i64>::from(a ^ b);
|
||||
assert!(mpza ^ mpzb == mpzres);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_shifts() {
|
||||
let i = 227;
|
||||
let j: Mpz = From::<i64>::from(i);
|
||||
assert!((i << 4).to_string() == (&j << 4).to_string());
|
||||
assert!((-i << 4).to_string() == (-&j << 4).to_string());
|
||||
assert!((i >> 4).to_string() == (&j >> 4).to_string());
|
||||
assert!((-i >> 4).to_string() == (-&j >> 4).to_string());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_compl() {
|
||||
let a: Mpz = From::<i64>::from(13);
|
||||
let b: Mpz = From::<i64>::from(-442);
|
||||
assert!(a.compl().to_string() == (!13i32).to_string());
|
||||
assert!(b.compl().to_string() == (!-442i32).to_string());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pow() {
|
||||
let a: Mpz = From::<i64>::from(2);
|
||||
let b: Mpz = From::<i64>::from(8);
|
||||
assert!(a.pow(3) == b);
|
||||
assert!(Mpz::ui_pow_ui(2, 3) == b);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_powm() {
|
||||
let a: Mpz = From::<i64>::from(13);
|
||||
let b: Mpz = From::<i64>::from(7);
|
||||
let p: Mpz = From::<i64>::from(19);
|
||||
let c: Mpz = From::<i64>::from(10);
|
||||
assert!(a.powm(&b, &p) == c);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_powm_sec() {
|
||||
let a: Mpz = From::<i64>::from(13);
|
||||
let b: Mpz = From::<i64>::from(7);
|
||||
let p: Mpz = From::<i64>::from(19);
|
||||
let c: Mpz = From::<i64>::from(10);
|
||||
assert!(a.powm_sec(&b, &p) == c);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_popcount() {
|
||||
assert_eq!(Mpz::from_str_radix("1010010011", 2).unwrap().popcount(), 5);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_hamdist() {
|
||||
let a: Mpz = From::<i64>::from(0b1011_0001);
|
||||
let b: Mpz = From::<i64>::from(0b0010_1011);
|
||||
assert!(a.hamdist(&b) == 4);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_bit_length() {
|
||||
let a: Mpz = From::<i64>::from(0b1011_0000_0001_0000);
|
||||
let b: Mpz = From::<i64>::from(0b101);
|
||||
assert!(a.bit_length() == 16);
|
||||
assert!(b.bit_length() == 3);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_probab_prime() {
|
||||
let prime: Mpz = From::<i64>::from(2);
|
||||
assert!(prime.probab_prime(15) == ProbabPrimeResult::Prime);
|
||||
|
||||
let not_prime: Mpz = From::<i64>::from(4);
|
||||
assert!(not_prime.probab_prime(15) == ProbabPrimeResult::NotPrime);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_nextprime() {
|
||||
let a: Mpz = From::<i64>::from(123456);
|
||||
let b: Mpz = From::<i64>::from(123457);
|
||||
assert!(a.nextprime() == b);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_gcd() {
|
||||
let zero: Mpz = From::<i64>::from(0);
|
||||
let three: Mpz = From::<i64>::from(3);
|
||||
let six: Mpz = From::<i64>::from(6);
|
||||
let eighteen: Mpz = From::<i64>::from(18);
|
||||
let twentyfour: Mpz = From::<i64>::from(24);
|
||||
assert!(zero.gcd(&zero) == zero);
|
||||
assert!(three.gcd(&six) == three);
|
||||
assert!(eighteen.gcd(&twentyfour) == six);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_gcdext() {
|
||||
let six: Mpz = From::<i64>::from(6);
|
||||
let eighteen: Mpz = From::<i64>::from(18);
|
||||
let twentyfour: Mpz = From::<i64>::from(24);
|
||||
let (g, s, t) = eighteen.gcdext(&twentyfour);
|
||||
assert!(g == six);
|
||||
assert!(g == s*eighteen + t*twentyfour);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_lcm() {
|
||||
let zero: Mpz = From::<i64>::from(0);
|
||||
let three: Mpz = From::<i64>::from(3);
|
||||
let five: Mpz = From::<i64>::from(5);
|
||||
let six: Mpz = From::<i64>::from(6);
|
||||
let eighteen: Mpz = From::<i64>::from(18);
|
||||
let twentyfour: Mpz = From::<i64>::from(24);
|
||||
let seventytwo: Mpz = From::<i64>::from(72);
|
||||
assert!(zero.lcm(&five) == zero);
|
||||
assert!(five.lcm(&zero) == zero);
|
||||
assert!(three.lcm(&six) == six);
|
||||
assert!(eighteen.lcm(&twentyfour) == seventytwo);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_is_multiple_of() {
|
||||
let two: Mpz = From::<i64>::from(2);
|
||||
let three: Mpz = From::<i64>::from(3);
|
||||
let six: Mpz = From::<i64>::from(6);
|
||||
assert!(six.is_multiple_of(&two));
|
||||
assert!(six.is_multiple_of(&three));
|
||||
assert!(!three.is_multiple_of(&two));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_modulus() {
|
||||
let minusone: Mpz = From::<i64>::from(-1);
|
||||
let two: Mpz = From::<i64>::from(2);
|
||||
let three: Mpz = From::<i64>::from(3);
|
||||
assert_eq!(two.modulus(&three), two);
|
||||
assert_eq!(minusone.modulus(&three), two);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_invert() {
|
||||
let two: Mpz = From::<i64>::from(2);
|
||||
let three: Mpz = From::<i64>::from(3);
|
||||
let four: Mpz = From::<i64>::from(4);
|
||||
let five: Mpz = From::<i64>::from(5);
|
||||
let eleven: Mpz = From::<i64>::from(11);
|
||||
assert!(three.invert(&eleven) == Some(four.clone()));
|
||||
assert!(four.invert(&eleven) == Some(three.clone()));
|
||||
assert!(two.invert(&five) == Some(three.clone()));
|
||||
assert!(three.invert(&five) == Some(two.clone()));
|
||||
assert!(two.invert(&four).is_none());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_one() {
|
||||
let onea: Mpz = From::<i64>::from(1);
|
||||
let oneb: Mpz = From::<i64>::from(1);
|
||||
assert!(onea == oneb);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_bit_fiddling() {
|
||||
let mut xs: Mpz = From::<i64>::from(0b1010_1000_0010_0011);
|
||||
assert!(xs.bit_length() == 16);
|
||||
let mut ys = [true, false, true, false,
|
||||
true, false, false, false,
|
||||
false, false, true, false,
|
||||
false, false, true, true];
|
||||
ys.reverse();
|
||||
for i in 0..xs.bit_length() {
|
||||
assert!(xs.tstbit(i) == ys[i]);
|
||||
}
|
||||
xs.setbit(0);
|
||||
ys[0] = true;
|
||||
xs.setbit(3);
|
||||
ys[3] = true;
|
||||
xs.clrbit(1);
|
||||
ys[1] = false;
|
||||
xs.clrbit(5);
|
||||
ys[5] = false;
|
||||
xs.combit(14);
|
||||
ys[14] = !ys[14];
|
||||
xs.combit(15);
|
||||
ys[15] = !ys[15];
|
||||
for i in 0..xs.bit_length() {
|
||||
assert!(xs.tstbit(i) == ys[i]);
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_root() {
|
||||
let x: Mpz = From::<i64>::from(123456);
|
||||
let y: Mpz = From::<i64>::from(49);
|
||||
assert!(x.root(3) == y);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_sqrt() {
|
||||
let x: Mpz = From::<i64>::from(567);
|
||||
let y: Mpz = From::<i64>::from(23);
|
||||
assert!(x.sqrt() == y);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_hash_short() {
|
||||
let zero: Mpz = From::<i64>::from(0);
|
||||
let one: Mpz = From::<i64>::from(1);
|
||||
let two = &one + &one;
|
||||
|
||||
let hash = |x : &Mpz| {
|
||||
let mut hasher = DefaultHasher::new();
|
||||
x.hash(&mut hasher);
|
||||
hasher.finish()
|
||||
};
|
||||
|
||||
assert!(hash(&zero) != hash(&one));
|
||||
assert_eq!(hash(&one), hash(&(&two - &one)));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_hash_long() {
|
||||
let a = Mpz::from_str_radix("348917329847193287498312749187234192387", 10)
|
||||
.unwrap();
|
||||
let b = Mpz::from_str_radix("348917329847193287498312749187234192386", 10)
|
||||
.unwrap();
|
||||
let one: Mpz = From::<i64>::from(1);
|
||||
|
||||
let hash = |x : &Mpz| {
|
||||
let mut hasher = DefaultHasher::new();
|
||||
x.hash(&mut hasher);
|
||||
hasher.finish()
|
||||
};
|
||||
|
||||
assert!(hash(&a) != hash(&b));
|
||||
assert_eq!(hash(&a), hash(&(&b + &one)));
|
||||
assert_eq!(hash(&(&a - &a)), hash(&(&one - &one)));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_to_vec_u8() {
|
||||
let minus_five: Mpz = From::<i64>::from(-5);
|
||||
let minus_one: Mpz = From::<i64>::from(-1);
|
||||
let zero: Mpz = From::<i64>::from(0);
|
||||
let one: Mpz = From::<i64>::from(1);
|
||||
let five: Mpz = From::<i64>::from(5);
|
||||
let xffff: Mpz = From::<i64>::from(65535);
|
||||
let max_u64: Mpz = From::<u64>::from(u64::MAX);
|
||||
|
||||
assert_eq!(Into::<Vec<u8>>::into(&minus_five), vec!(5u8));
|
||||
assert_eq!(Into::<Vec<u8>>::into(&minus_one), vec!(1u8));
|
||||
assert_eq!(Into::<Vec<u8>>::into(&zero), vec!(0u8));
|
||||
assert_eq!(Into::<Vec<u8>>::into(&one), vec!(1u8));
|
||||
assert_eq!(Into::<Vec<u8>>::into(&five), vec!(5u8));
|
||||
assert_eq!(Into::<Vec<u8>>::into(&xffff), vec!(255u8, 255u8));
|
||||
assert_eq!(Into::<Vec<u8>>::into(&max_u64), vec!(255u8, 255u8, 255u8, 255u8, 255u8, 255u8, 255u8, 255u8));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_to_u64() {
|
||||
let minus_five: Mpz = From::<i64>::from(-5);
|
||||
let minus_one: Mpz = From::<i64>::from(-1);
|
||||
let zero: Mpz = From::<i64>::from(0);
|
||||
let one: Mpz = From::<i64>::from(1);
|
||||
let five: Mpz = From::<i64>::from(5);
|
||||
let max_u64: Mpz = From::<u64>::from(u64::MAX);
|
||||
|
||||
assert_eq!(Into::<Option<u64>>::into(&minus_five), None);
|
||||
assert_eq!(Into::<Option<u64>>::into(&minus_one), None);
|
||||
assert_eq!(Into::<Option<u64>>::into(&zero), Some(0u64));
|
||||
assert_eq!(Into::<Option<u64>>::into(&one), Some(1u64));
|
||||
assert_eq!(Into::<Option<u64>>::into(&five), Some(5u64));
|
||||
assert_eq!(Into::<Option<u64>>::into(&max_u64), Some(u64::MAX));
|
||||
assert_eq!(Into::<Option<u64>>::into(&(&max_u64 + &one)), None);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_to_i64() {
|
||||
let min_i64: Mpz = From::<i64>::from(i64::MIN);
|
||||
let minus_five: Mpz = From::<i64>::from(-5);
|
||||
let minus_one: Mpz = From::<i64>::from(-1);
|
||||
let zero: Mpz = From::<i64>::from(0);
|
||||
let one: Mpz = From::<i64>::from(1);
|
||||
let five: Mpz = From::<i64>::from(5);
|
||||
let max_i64: Mpz = From::<i64>::from(i64::MAX);
|
||||
|
||||
assert_eq!(Into::<Option<i64>>::into(&(&min_i64 - &one)), None);
|
||||
assert_eq!(Into::<Option<i64>>::into(&min_i64), Some(i64::MIN));
|
||||
assert_eq!(Into::<Option<i64>>::into(&minus_five), Some(-5i64));
|
||||
assert_eq!(Into::<Option<i64>>::into(&minus_one), Some(-1i64));
|
||||
assert_eq!(Into::<Option<i64>>::into(&zero), Some(0i64));
|
||||
assert_eq!(Into::<Option<i64>>::into(&one), Some(1i64));
|
||||
assert_eq!(Into::<Option<i64>>::into(&five), Some(5i64));
|
||||
assert_eq!(Into::<Option<i64>>::into(&max_i64), Some(i64::MAX));
|
||||
assert_eq!(Into::<Option<i64>>::into(&(&max_i64 + &one)), None);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_sign() {
|
||||
let zero: Mpz = From::<i64>::from(0);
|
||||
let five: Mpz = From::<i64>::from(5);
|
||||
let minus_five: Mpz = From::<i64>::from(-5);
|
||||
|
||||
assert_eq!(zero.sign(), Sign::Zero);
|
||||
assert_eq!(five.sign(), Sign::Positive);
|
||||
assert_eq!(minus_five.sign(), Sign::Negative);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_format() {
|
||||
let zero = Mpz::zero();
|
||||
assert_eq!(format!("{}", zero), "0");
|
||||
let zero = Mpz::from(-51213);
|
||||
assert_eq!(format!("{}", zero), "-51213");
|
||||
}
|
||||
}
|
||||
90
crates/classgroup/src/gmp_classgroup/congruence.rs
Normal file
90
crates/classgroup/src/gmp_classgroup/congruence.rs
Normal file
@ -0,0 +1,90 @@
|
||||
// Copyright 2018 Chia Network Inc and POA Networks Ltd.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
#![forbid(unsafe_code)]
|
||||
use self::ffi::Mpz;
|
||||
use super::ffi;
|
||||
|
||||
/// Stores temporary values for congruence computations, to avoid
|
||||
/// repeated allocations.
|
||||
///
|
||||
/// It is allowed (but inefficient) to generate a fresh `CongruenceContest`
|
||||
/// for each call to `solve_linear_congruence`.
|
||||
///
|
||||
/// `self.solve_linear_congruence` can be called no matter what values
|
||||
/// this struct’s public members hold, so long as they are valid `Mpz` values.
|
||||
/// However, the values of these members after such a call must not be relied
|
||||
/// on.
|
||||
#[derive(Clone, Hash, PartialEq, Eq, PartialOrd, Ord, Debug)]
|
||||
pub struct CongruenceContext {
|
||||
pub g: Mpz,
|
||||
pub d: Mpz,
|
||||
pub q: Mpz,
|
||||
pub r: Mpz,
|
||||
}
|
||||
|
||||
// #[derive(Copy, Clone, Hash, PartialEq, Eq, PartialOrd, Ord, Debug)]
|
||||
// struct NoCongruence;
|
||||
|
||||
impl Default for CongruenceContext {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
g: Mpz::new(),
|
||||
d: Mpz::new(),
|
||||
q: Mpz::new(),
|
||||
r: Mpz::new(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl CongruenceContext {
|
||||
/// Solves `a*x = b (mod m)`, storing `x` in `mu`
|
||||
///
|
||||
/// This function may clobber any or all of `self`’s member variables.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// Panics if the congruence could not be solved.
|
||||
pub fn solve_linear_congruence(
|
||||
&mut self,
|
||||
mu: &mut Mpz,
|
||||
v: Option<&mut Mpz>,
|
||||
a: &Mpz,
|
||||
b: &Mpz,
|
||||
m: &Mpz,
|
||||
) {
|
||||
ffi::mpz_gcdext(&mut self.g, &mut self.d, mu, a, m);
|
||||
if cfg!(test) {
|
||||
println!(
|
||||
"g = {}, d = {}, e = {}, a = {}, m = {}",
|
||||
self.g, self.d, mu, a, m
|
||||
);
|
||||
}
|
||||
if cfg!(debug_assertions) {
|
||||
ffi::mpz_fdiv_qr(&mut self.q, &mut self.r, b, &self.g);
|
||||
debug_assert!(self.r.is_zero(), "Could not solve the congruence ― did you pass a non-prime or a positive number to the command line tool?!");
|
||||
} else {
|
||||
ffi::mpz_divexact(&mut self.q, b, &self.g)
|
||||
}
|
||||
ffi::mpz_mul(&mut self.r, &self.q, &self.d);
|
||||
ffi::mpz_tdiv_r(mu, &self.r, m);
|
||||
if let Some(v) = v {
|
||||
if cfg!(debug_assertions) {
|
||||
ffi::mpz_fdiv_qr(v, &mut self.r, &m, &self.g);
|
||||
debug_assert!(self.r.is_zero(), "Could not solve the congruence ― did you pass a non-prime or a positive number to the command line tool?!");
|
||||
} else {
|
||||
ffi::mpz_divexact(v, &m, &self.g)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
340
crates/classgroup/src/gmp_classgroup/ffi.rs
Normal file
340
crates/classgroup/src/gmp_classgroup/ffi.rs
Normal file
@ -0,0 +1,340 @@
|
||||
// Copyright 2018 POA Networks Ltd.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
//! FFI bindings to GMP. This module exists because the `rust-gmp` crate
|
||||
//! is too high-level. High-performance bignum computation requires that
|
||||
//! bignums be modified in-place, so that their storage can be reused.
|
||||
//! Furthermore, the `rust-gmp` crate doesn’t support many operations that
|
||||
//! this library requires.
|
||||
#![allow(unsafe_code)]
|
||||
pub use super::super::gmp::mpz::Mpz;
|
||||
use super::super::gmp::mpz::{mp_bitcnt_t, mp_limb_t};
|
||||
use libc::{c_int, c_long, c_ulong, c_void, size_t};
|
||||
// pub use c_ulong;
|
||||
use std::{mem, usize};
|
||||
// We use the unsafe versions to avoid unecessary allocations.
|
||||
#[link(name = "gmp", kind = "static")]
|
||||
extern "C" {
|
||||
fn __gmpz_gcdext(gcd: *mut Mpz, s: *mut Mpz, t: *mut Mpz, a: *const Mpz, b: *const Mpz);
|
||||
fn __gmpz_gcd(rop: *mut Mpz, op1: *const Mpz, op2: *const Mpz);
|
||||
fn __gmpz_fdiv_qr(q: *mut Mpz, r: *mut Mpz, b: *const Mpz, g: *const Mpz);
|
||||
fn __gmpz_fdiv_q(q: *mut Mpz, n: *const Mpz, d: *const Mpz);
|
||||
fn __gmpz_divexact(q: *mut Mpz, n: *const Mpz, d: *const Mpz);
|
||||
fn __gmpz_tdiv_q(q: *mut Mpz, n: *const Mpz, d: *const Mpz);
|
||||
fn __gmpz_mul(p: *mut Mpz, a: *const Mpz, b: *const Mpz);
|
||||
fn __gmpz_mul_2exp(rop: *mut Mpz, op1: *const Mpz, op2: mp_bitcnt_t);
|
||||
fn __gmpz_sub(rop: *mut Mpz, op1: *const Mpz, op2: *const Mpz);
|
||||
fn __gmpz_import(
|
||||
rop: *mut Mpz,
|
||||
count: size_t,
|
||||
order: c_int,
|
||||
size: size_t,
|
||||
endian: c_int,
|
||||
nails: size_t,
|
||||
op: *const c_void,
|
||||
);
|
||||
fn __gmpz_tdiv_r(r: *mut Mpz, n: *const Mpz, d: *const Mpz);
|
||||
fn __gmpz_sizeinbase(op: &Mpz, base: c_int) -> size_t;
|
||||
fn __gmpz_fdiv_q_ui(rop: *mut Mpz, op1: *const Mpz, op2: c_ulong) -> c_ulong;
|
||||
fn __gmpz_add(rop: *mut Mpz, op1: *const Mpz, op2: *const Mpz);
|
||||
fn __gmpz_add_ui(rop: *mut Mpz, op1: *const Mpz, op2: c_ulong);
|
||||
fn __gmpz_set_ui(rop: &mut Mpz, op: c_ulong);
|
||||
fn __gmpz_set_si(rop: &mut Mpz, op: c_long);
|
||||
fn __gmpz_cdiv_ui(n: &Mpz, d: c_ulong) -> c_ulong;
|
||||
fn __gmpz_fdiv_ui(n: &Mpz, d: c_ulong) -> c_ulong;
|
||||
fn __gmpz_tdiv_ui(n: &Mpz, d: c_ulong) -> c_ulong;
|
||||
fn __gmpz_export(
|
||||
rop: *mut c_void,
|
||||
countp: *mut size_t,
|
||||
order: c_int,
|
||||
size: size_t,
|
||||
endian: c_int,
|
||||
nails: size_t,
|
||||
op: &Mpz,
|
||||
) -> *mut c_void;
|
||||
fn __gmpz_powm(rop: *mut Mpz, base: *const Mpz, exp: *const Mpz, modulus: *const Mpz);
|
||||
}
|
||||
|
||||
// MEGA HACK: rust-gmp doesn’t expose the fields of this struct, so we must define
|
||||
// it ourselves and cast.
|
||||
//
|
||||
// Should be stable though, as only GMP can change it, and doing would break binary compatibility.
|
||||
#[repr(C)]
|
||||
struct MpzStruct {
|
||||
mp_alloc: c_int,
|
||||
mp_size: c_int,
|
||||
mp_d: *mut mp_limb_t,
|
||||
}
|
||||
|
||||
macro_rules! impl_div_ui {
|
||||
($t:ident, $i:ident, $f:expr) => {
|
||||
pub fn $i(n: &Mpz, d: $t) -> $t {
|
||||
use std::$t;
|
||||
let res = unsafe { $f(n, c_ulong::from(d)) };
|
||||
assert!(res <= $t::MAX.into());
|
||||
res as $t
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
impl_div_ui!(u16, mpz_crem_u16, __gmpz_cdiv_ui);
|
||||
impl_div_ui!(u32, mpz_frem_u32, __gmpz_fdiv_ui);
|
||||
|
||||
/// Returns `true` if `z` is negative and not zero. Otherwise,
|
||||
/// returns `false`.
|
||||
#[inline]
|
||||
pub fn mpz_is_negative(z: &Mpz) -> bool {
|
||||
unsafe { (*(z as *const _ as *const MpzStruct)).mp_size < 0 }
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn mpz_powm(rop: &mut Mpz, base: &Mpz, exponent: &Mpz, modulus: &Mpz) {
|
||||
unsafe { __gmpz_powm(rop, base, exponent, modulus) }
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn mpz_tdiv_r(r: &mut Mpz, n: &Mpz, d: &Mpz) {
|
||||
unsafe { __gmpz_tdiv_r(r, n, d) }
|
||||
}
|
||||
|
||||
/// Sets `g` to the GCD of `a` and `b`.
|
||||
#[inline]
|
||||
pub fn mpz_gcdext(gcd: &mut Mpz, s: &mut Mpz, t: &mut Mpz, a: &Mpz, b: &Mpz) {
|
||||
unsafe { __gmpz_gcdext(gcd, s, t, a, b) }
|
||||
}
|
||||
|
||||
/// Doubles `rop` in-place
|
||||
#[inline]
|
||||
pub fn mpz_double(rop: &mut Mpz) {
|
||||
if true {
|
||||
// slightly faster
|
||||
unsafe { __gmpz_mul_2exp(rop, rop, 1) }
|
||||
} else {
|
||||
unsafe { __gmpz_add(rop, rop, rop) }
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn mpz_fdiv_qr(q: &mut Mpz, r: &mut Mpz, b: &Mpz, g: &Mpz) {
|
||||
unsafe { __gmpz_fdiv_qr(q, r, b, g) }
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn mpz_fdiv_q_ui_self(rop: &mut Mpz, op: c_ulong) -> c_ulong {
|
||||
unsafe { __gmpz_fdiv_q_ui(rop, rop, op) }
|
||||
}
|
||||
|
||||
/// Unmarshals a buffer to an `Mpz`. `buf` is interpreted as a 2’s complement,
|
||||
/// big-endian integer. If the buffer is empty, zero is returned.
|
||||
pub fn import_obj(buf: &[u8]) -> Mpz {
|
||||
fn raw_import(buf: &[u8]) -> Mpz {
|
||||
let mut obj = Mpz::new();
|
||||
|
||||
unsafe { __gmpz_import(&mut obj, buf.len(), 1, 1, 1, 0, buf.as_ptr() as *const _) }
|
||||
obj
|
||||
}
|
||||
let is_negative = match buf.first() {
|
||||
None => return Mpz::zero(),
|
||||
Some(x) => x & 0x80 != 0,
|
||||
};
|
||||
if !is_negative {
|
||||
raw_import(buf)
|
||||
} else {
|
||||
let mut new_buf: Vec<_> = buf.iter().cloned().skip_while(|&x| x == 0xFF).collect();
|
||||
if new_buf.is_empty() {
|
||||
(-1).into()
|
||||
} else {
|
||||
for i in &mut new_buf {
|
||||
*i ^= 0xFF
|
||||
}
|
||||
!raw_import(&new_buf)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn three_gcd(rop: &mut Mpz, a: &Mpz, b: &Mpz, c: &Mpz) {
|
||||
unsafe {
|
||||
__gmpz_gcd(rop, a, b);
|
||||
__gmpz_gcd(rop, rop, c)
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn size_in_bits(obj: &Mpz) -> usize {
|
||||
unsafe { __gmpz_sizeinbase(obj, 2) }
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn mpz_add(rop: &mut Mpz, op1: &Mpz, op2: &Mpz) {
|
||||
unsafe { __gmpz_add(rop, op1, op2) }
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn mpz_mul(rop: &mut Mpz, op1: &Mpz, op2: &Mpz) {
|
||||
unsafe { __gmpz_mul(rop, op1, op2) }
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn mpz_divexact(q: &mut Mpz, n: &Mpz, d: &Mpz) {
|
||||
unsafe { __gmpz_divexact(q, n, d) }
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn mpz_mul_2exp(rop: &mut Mpz, op1: &Mpz, op2: mp_bitcnt_t) {
|
||||
unsafe { __gmpz_mul_2exp(rop as *mut _ as *mut Mpz, op1, op2) }
|
||||
}
|
||||
|
||||
/// Divide `n` by `d`. Round towards -∞ and place the result in `q`.
|
||||
#[inline]
|
||||
pub fn mpz_fdiv_q(q: &mut Mpz, n: &Mpz, d: &Mpz) {
|
||||
if mpz_is_negative(n) == mpz_is_negative(d) {
|
||||
unsafe { __gmpz_tdiv_q(q, n, d) }
|
||||
} else {
|
||||
unsafe { __gmpz_fdiv_q(q, n, d) }
|
||||
}
|
||||
}
|
||||
|
||||
/// Sets `rop` to `(-1) * op`
|
||||
#[inline]
|
||||
#[cfg(none)]
|
||||
pub fn mpz_neg(rop: &mut Mpz) {
|
||||
assert!(mem::size_of::<Mpz>() == mem::size_of::<MpzStruct>());
|
||||
unsafe {
|
||||
let ptr = rop as *mut _ as *mut MpzStruct;
|
||||
let v = (*ptr).mp_size;
|
||||
(*ptr).mp_size = -v;
|
||||
}
|
||||
}
|
||||
|
||||
/// Subtracts `op2` from `op1` and stores the result in `rop`.
|
||||
#[inline]
|
||||
pub fn mpz_sub(rop: &mut Mpz, op1: &Mpz, op2: &Mpz) {
|
||||
unsafe { __gmpz_sub(rop as *mut _ as *mut Mpz, op1, op2) }
|
||||
}
|
||||
|
||||
/// Exports `obj` to `v` as an array of 2’s complement, big-endian
|
||||
/// bytes. If `v` is too small to hold the result, returns `Err(s)`,
|
||||
/// where `s` is the size needed to hold the exported version of `obj`.
|
||||
pub fn export_obj(obj: &Mpz, v: &mut [u8]) -> Result<(), usize> {
|
||||
// Requires: offset < v.len() and v[offset..] be able to hold all of `obj`
|
||||
unsafe fn raw_export(v: &mut [u8], offset: usize, obj: &Mpz) -> usize {
|
||||
// SAFE as `offset` will always be in-bounds, since byte_len always <=
|
||||
// byte_len_needed and we check that v.len() >= byte_len_needed.
|
||||
let ptr = v.as_mut_ptr().add(offset) as *mut c_void;
|
||||
|
||||
// Necessary ― this byte may not be fully overwritten
|
||||
*(ptr as *mut u8) = 0;
|
||||
|
||||
// SAFE as __gmpz_export will *always* initialize this.
|
||||
let mut s: usize = mem::uninitialized();
|
||||
let ptr2 = __gmpz_export(ptr, &mut s, 1, 1, 1, 0, obj);
|
||||
assert_eq!(ptr, ptr2);
|
||||
if 0 == s {
|
||||
1
|
||||
} else {
|
||||
s
|
||||
}
|
||||
}
|
||||
|
||||
let size = size_in_bits(obj);
|
||||
assert!(size > 0);
|
||||
|
||||
// Check to avoid integer overflow in later operations.
|
||||
if size > usize::MAX - 8 || v.len() > usize::MAX >> 3 {
|
||||
return Err(usize::MAX);
|
||||
}
|
||||
|
||||
// One additional bit is needed for the sign bit.
|
||||
let byte_len_needed = (size + 8) >> 3;
|
||||
if v.len() < byte_len_needed {
|
||||
return if v.is_empty() && obj.is_zero() {
|
||||
Ok(())
|
||||
} else {
|
||||
Err(byte_len_needed)
|
||||
};
|
||||
}
|
||||
let is_negative = mpz_is_negative(obj);
|
||||
|
||||
if is_negative {
|
||||
// MEGA HACK: GMP does not have a function to perform 2's complement
|
||||
let obj = !obj;
|
||||
debug_assert!(
|
||||
!mpz_is_negative(&obj),
|
||||
"bitwise negation of a negative number produced a negative number"
|
||||
);
|
||||
let new_byte_size = (size_in_bits(&obj) + 7) >> 3;
|
||||
let offset = v.len() - new_byte_size;
|
||||
|
||||
for i in &mut v[..offset] {
|
||||
*i = 0xFF
|
||||
}
|
||||
unsafe {
|
||||
assert_eq!(raw_export(v, offset, &obj), new_byte_size);
|
||||
}
|
||||
|
||||
// We had to do a one’s complement to get the data in a decent format,
|
||||
// so now we need to flip all of the bits back. LLVM should be able to
|
||||
// vectorize this loop easily.
|
||||
for i in &mut v[offset..] {
|
||||
*i ^= 0xFF
|
||||
}
|
||||
} else {
|
||||
// ...but GMP will not include that in the number of bytes it writes
|
||||
// (except for negative numbers)
|
||||
let byte_len = (size + 7) >> 3;
|
||||
assert!(byte_len > 0);
|
||||
|
||||
let offset = v.len() - byte_len;
|
||||
|
||||
// Zero out any leading bytes
|
||||
for i in &mut v[..offset] {
|
||||
*i = 0
|
||||
}
|
||||
unsafe {
|
||||
assert_eq!(raw_export(v, offset, &obj), byte_len);
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod test {
|
||||
use super::*;
|
||||
#[test]
|
||||
fn check_expected_bit_width() {
|
||||
let mut s: Mpz = (-2).into();
|
||||
assert_eq!(size_in_bits(&s), 2);
|
||||
s = !s;
|
||||
assert_eq!(s, 1.into());
|
||||
s.setbit(2);
|
||||
assert_eq!(s, 5.into());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn check_export() {
|
||||
let mut s: Mpz = 0x100.into();
|
||||
s = !s;
|
||||
let mut buf = [0, 0, 0];
|
||||
export_obj(&s, &mut buf).expect("buffer should be large enough");
|
||||
assert_eq!(buf, [0xFF, 0xFE, 0xFF]);
|
||||
export_obj(&Mpz::zero(), &mut []).unwrap();
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn check_rem() {
|
||||
assert_eq!(mpz_crem_u16(&(-100i64).into(), 3), 1);
|
||||
assert_eq!(mpz_crem_u16(&(100i64).into(), 3), 2);
|
||||
}
|
||||
}
|
||||
590
crates/classgroup/src/gmp_classgroup/mod.rs
Normal file
590
crates/classgroup/src/gmp_classgroup/mod.rs
Normal file
@ -0,0 +1,590 @@
|
||||
// Copyright 2018 Chia Network Inc and POA Networks Ltd.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
#![deny(unsafe_code)]
|
||||
use super::ClassGroup;
|
||||
use super::gmp::mpz::Mpz;
|
||||
use super::gmp::mpz::ProbabPrimeResult::NotPrime;
|
||||
use num_traits::{One, Zero};
|
||||
use std::{
|
||||
borrow::Borrow,
|
||||
cell::RefCell,
|
||||
mem::swap,
|
||||
ops::{Mul, MulAssign},
|
||||
};
|
||||
use std::convert::TryInto;
|
||||
|
||||
mod congruence;
|
||||
pub(super) mod ffi;
|
||||
|
||||
#[derive(PartialEq, PartialOrd, Eq, Ord, Hash, Debug, Clone)]
|
||||
pub struct GmpClassGroup {
|
||||
a: Mpz,
|
||||
b: Mpz,
|
||||
c: Mpz,
|
||||
discriminant: Mpz,
|
||||
}
|
||||
|
||||
#[derive(PartialEq, PartialOrd, Eq, Ord, Clone, Hash, Debug)]
|
||||
pub struct Ctx {
|
||||
negative_a: Mpz,
|
||||
r: Mpz,
|
||||
denom: Mpz,
|
||||
old_a: Mpz,
|
||||
old_b: Mpz,
|
||||
ra: Mpz,
|
||||
s: Mpz,
|
||||
x: Mpz,
|
||||
congruence_context: congruence::CongruenceContext,
|
||||
h: Mpz,
|
||||
w: Mpz,
|
||||
m: Mpz,
|
||||
u: Mpz,
|
||||
a: Mpz,
|
||||
l: Mpz,
|
||||
j: Mpz,
|
||||
b: Mpz,
|
||||
k: Mpz,
|
||||
t: Mpz,
|
||||
mu: Mpz,
|
||||
v: Mpz,
|
||||
sigma: Mpz,
|
||||
lambda: Mpz,
|
||||
}
|
||||
|
||||
thread_local! {
|
||||
static CTX: RefCell<Ctx> = Default::default();
|
||||
}
|
||||
|
||||
impl GmpClassGroup {
|
||||
pub fn into_raw(self) -> (Mpz, Mpz) {
|
||||
(self.a, self.b)
|
||||
}
|
||||
|
||||
fn inner_multiply(&mut self, rhs: &Self, ctx: &mut Ctx) {
|
||||
self.assert_valid();
|
||||
rhs.assert_valid();
|
||||
|
||||
// g = (b1 + b2) / 2
|
||||
ffi::mpz_add(&mut ctx.congruence_context.g, &self.b, &rhs.b);
|
||||
ffi::mpz_fdiv_q_ui_self(&mut ctx.congruence_context.g, 2);
|
||||
|
||||
// h = (b2 - b1) / 2
|
||||
ffi::mpz_sub(&mut ctx.h, &rhs.b, &self.b);
|
||||
ffi::mpz_fdiv_q_ui_self(&mut ctx.h, 2);
|
||||
|
||||
debug_assert!(&ctx.h + &ctx.congruence_context.g == rhs.b);
|
||||
debug_assert!(&ctx.congruence_context.g - &ctx.h == self.b);
|
||||
|
||||
// w = gcd(a1, a2, g)
|
||||
ffi::three_gcd(&mut ctx.w, &self.a, &rhs.a, &ctx.congruence_context.g);
|
||||
|
||||
// j = w
|
||||
ctx.j.set(&ctx.w);
|
||||
|
||||
// s = a1/w
|
||||
ffi::mpz_fdiv_q(&mut ctx.s, &self.a, &ctx.w);
|
||||
|
||||
// t = a2/w
|
||||
ffi::mpz_fdiv_q(&mut ctx.t, &rhs.a, &ctx.w);
|
||||
|
||||
// u = g/w
|
||||
ffi::mpz_fdiv_q(&mut ctx.u, &ctx.congruence_context.g, &ctx.w);
|
||||
|
||||
// a = t*u
|
||||
ffi::mpz_mul(&mut ctx.a, &ctx.t, &ctx.u);
|
||||
|
||||
// b = h*u - s*c1
|
||||
ffi::mpz_mul(&mut ctx.b, &ctx.h, &ctx.u);
|
||||
ffi::mpz_mul(&mut ctx.m, &ctx.s, &self.c);
|
||||
ctx.b += &ctx.m;
|
||||
|
||||
// m = s*t
|
||||
ffi::mpz_mul(&mut ctx.m, &ctx.s, &ctx.t);
|
||||
ctx.congruence_context.solve_linear_congruence(
|
||||
&mut ctx.mu,
|
||||
Some(&mut ctx.v),
|
||||
&ctx.a,
|
||||
&ctx.b,
|
||||
&ctx.m,
|
||||
);
|
||||
|
||||
// a = t*v
|
||||
ffi::mpz_mul(&mut ctx.a, &ctx.t, &ctx.v);
|
||||
|
||||
// b = h - t * mu
|
||||
ffi::mpz_mul(&mut ctx.m, &ctx.t, &ctx.mu);
|
||||
ffi::mpz_sub(&mut ctx.b, &ctx.h, &ctx.m);
|
||||
|
||||
// m = s
|
||||
ctx.m.set(&ctx.s);
|
||||
|
||||
ctx.congruence_context.solve_linear_congruence(
|
||||
&mut ctx.lambda,
|
||||
Some(&mut ctx.sigma),
|
||||
&ctx.a,
|
||||
&ctx.b,
|
||||
&ctx.m,
|
||||
);
|
||||
|
||||
// k = mu + v*lambda
|
||||
ffi::mpz_mul(&mut ctx.a, &ctx.v, &ctx.lambda);
|
||||
ffi::mpz_add(&mut ctx.k, &ctx.mu, &ctx.a);
|
||||
|
||||
// l = (k*t - h)/s
|
||||
ffi::mpz_mul(&mut ctx.l, &ctx.k, &ctx.t);
|
||||
ffi::mpz_sub(&mut ctx.v, &ctx.l, &ctx.h);
|
||||
ffi::mpz_fdiv_q(&mut ctx.l, &ctx.v, &ctx.s);
|
||||
|
||||
// m = (t*u*k - h*u - c*s) / s*t
|
||||
ffi::mpz_mul(&mut ctx.m, &ctx.t, &ctx.u);
|
||||
ctx.m *= &ctx.k;
|
||||
ffi::mpz_mul(&mut ctx.a, &ctx.h, &ctx.u);
|
||||
ctx.m -= &ctx.a;
|
||||
ffi::mpz_mul(&mut ctx.a, &self.c, &ctx.s);
|
||||
ctx.m -= &ctx.a;
|
||||
ffi::mpz_mul(&mut ctx.a, &ctx.s, &ctx.t);
|
||||
ffi::mpz_fdiv_q(&mut ctx.lambda, &ctx.m, &ctx.a);
|
||||
|
||||
// A = s*t - r*u
|
||||
ffi::mpz_mul(&mut self.a, &ctx.s, &ctx.t);
|
||||
|
||||
// B = ju + mr - (kt + ls)
|
||||
ffi::mpz_mul(&mut self.b, &ctx.j, &ctx.u);
|
||||
ffi::mpz_mul(&mut ctx.a, &ctx.k, &ctx.t);
|
||||
self.b -= &ctx.a;
|
||||
ffi::mpz_mul(&mut ctx.a, &ctx.l, &ctx.s);
|
||||
self.b -= &ctx.a;
|
||||
|
||||
// C = kl - jm
|
||||
ffi::mpz_mul(&mut self.c, &ctx.k, &ctx.l);
|
||||
ffi::mpz_mul(&mut ctx.a, &ctx.j, &ctx.lambda);
|
||||
self.c -= &ctx.a;
|
||||
|
||||
self.inner_reduce(ctx);
|
||||
}
|
||||
|
||||
#[cfg_attr(not(debug_assertions), inline(always))]
|
||||
fn new(a: Mpz, b: Mpz, c: Mpz, discriminant: Mpz) -> Self {
|
||||
let s = GmpClassGroup {
|
||||
a,
|
||||
b,
|
||||
c,
|
||||
discriminant,
|
||||
};
|
||||
s.assert_valid();
|
||||
s
|
||||
}
|
||||
|
||||
#[cfg_attr(not(debug_assertions), inline(always))]
|
||||
fn assert_valid(&self) {
|
||||
if cfg!(debug_assertions) {
|
||||
let four: Mpz = 4u64.into();
|
||||
let four_ac: Mpz = four * &self.a * &self.c;
|
||||
assert!(&self.discriminant + four_ac == &self.b * &self.b);
|
||||
}
|
||||
}
|
||||
|
||||
fn inner_normalize(&mut self, ctx: &mut Ctx) {
|
||||
self.assert_valid();
|
||||
ctx.negative_a = -&self.a;
|
||||
if self.b > ctx.negative_a && self.b <= self.a {
|
||||
return;
|
||||
}
|
||||
ffi::mpz_sub(&mut ctx.r, &self.a, &self.b);
|
||||
ffi::mpz_mul_2exp(&mut ctx.denom, &self.a, 1);
|
||||
ffi::mpz_fdiv_q(&mut ctx.negative_a, &ctx.r, &ctx.denom);
|
||||
swap(&mut ctx.negative_a, &mut ctx.r);
|
||||
swap(&mut ctx.old_b, &mut self.b);
|
||||
ffi::mpz_mul(&mut ctx.ra, &ctx.r, &self.a);
|
||||
ffi::mpz_mul_2exp(&mut ctx.negative_a, &ctx.ra, 1);
|
||||
ffi::mpz_add(&mut self.b, &ctx.old_b, &ctx.negative_a);
|
||||
|
||||
ffi::mpz_mul(&mut ctx.negative_a, &ctx.ra, &ctx.r);
|
||||
ffi::mpz_add(&mut ctx.old_a, &self.c, &ctx.negative_a);
|
||||
|
||||
ffi::mpz_mul(&mut ctx.ra, &ctx.r, &ctx.old_b);
|
||||
ffi::mpz_add(&mut self.c, &ctx.old_a, &ctx.ra);
|
||||
|
||||
self.assert_valid();
|
||||
}
|
||||
|
||||
fn inner_reduce(&mut self, ctx: &mut Ctx) {
|
||||
self.inner_normalize(ctx);
|
||||
|
||||
while if ffi::mpz_is_negative(&self.b) {
|
||||
self.a >= self.c
|
||||
} else {
|
||||
self.a > self.c
|
||||
} {
|
||||
debug_assert!(!self.c.is_zero());
|
||||
ffi::mpz_add(&mut ctx.s, &self.c, &self.b);
|
||||
ffi::mpz_add(&mut ctx.x, &self.c, &self.c);
|
||||
swap(&mut self.b, &mut ctx.old_b);
|
||||
ffi::mpz_fdiv_q(&mut self.b, &ctx.s, &ctx.x);
|
||||
swap(&mut self.b, &mut ctx.s);
|
||||
swap(&mut self.a, &mut self.c);
|
||||
|
||||
// x = 2sc
|
||||
ffi::mpz_mul(&mut self.b, &ctx.s, &self.a);
|
||||
ffi::mpz_mul_2exp(&mut ctx.x, &self.b, 1);
|
||||
|
||||
// b = x - old_b
|
||||
ffi::mpz_sub(&mut self.b, &ctx.x, &ctx.old_b);
|
||||
|
||||
// x = b*s
|
||||
ffi::mpz_mul(&mut ctx.x, &ctx.old_b, &ctx.s);
|
||||
|
||||
// s = c*s^2
|
||||
ffi::mpz_mul(&mut ctx.old_b, &ctx.s, &ctx.s);
|
||||
ffi::mpz_mul(&mut ctx.s, &self.a, &ctx.old_b);
|
||||
|
||||
// c = s - x
|
||||
ffi::mpz_sub(&mut ctx.old_a, &ctx.s, &ctx.x);
|
||||
|
||||
// c += a
|
||||
self.c += &ctx.old_a;
|
||||
}
|
||||
self.inner_normalize(ctx);
|
||||
}
|
||||
|
||||
fn inner_square_impl(&mut self, ctx: &mut Ctx) {
|
||||
self.assert_valid();
|
||||
ctx.congruence_context.solve_linear_congruence(
|
||||
&mut ctx.mu,
|
||||
None,
|
||||
&self.b,
|
||||
&self.c,
|
||||
&self.a,
|
||||
);
|
||||
ffi::mpz_mul(&mut ctx.m, &self.b, &ctx.mu);
|
||||
ctx.m -= &self.c;
|
||||
ctx.m = ctx.m.div_floor(&self.a);
|
||||
|
||||
// New a
|
||||
ctx.old_a.set(&self.a);
|
||||
ffi::mpz_mul(&mut self.a, &ctx.old_a, &ctx.old_a);
|
||||
|
||||
// New b
|
||||
ffi::mpz_mul(&mut ctx.a, &ctx.mu, &ctx.old_a);
|
||||
ffi::mpz_double(&mut ctx.a);
|
||||
self.b -= &ctx.a;
|
||||
|
||||
// New c
|
||||
ffi::mpz_mul(&mut self.c, &ctx.mu, &ctx.mu);
|
||||
self.c -= &ctx.m;
|
||||
self.inner_reduce(ctx);
|
||||
}
|
||||
|
||||
#[cfg_attr(not(debug_assertions), inline(always))]
|
||||
fn inner_square(&mut self, ctx: &mut Ctx) {
|
||||
if cfg!(debug_assertions) {
|
||||
let mut q = self.clone();
|
||||
q.inner_multiply(self, ctx);
|
||||
self.inner_square_impl(ctx);
|
||||
assert_eq!(*self, q);
|
||||
} else {
|
||||
self.inner_square_impl(ctx);
|
||||
}
|
||||
}
|
||||
|
||||
/// Call `cb` with a mutable reference to the context of type `Ctx`.
|
||||
///
|
||||
/// The reference cannot escape the closure and cannot be sent across
|
||||
/// threads.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// Panics if called recursively. This library guarantees that it will
|
||||
/// never call this function from any function that takes a parameter of
|
||||
/// type `&mut Ctx`.
|
||||
pub fn with_context<T, U>(cb: T) -> U
|
||||
where
|
||||
T: FnOnce(&mut Ctx) -> U,
|
||||
{
|
||||
let mut opt = None;
|
||||
CTX.with(|x| opt = Some(cb(&mut x.borrow_mut())));
|
||||
opt.unwrap()
|
||||
}
|
||||
}
|
||||
|
||||
impl Default for GmpClassGroup {
|
||||
fn default() -> Self {
|
||||
GmpClassGroup {
|
||||
a: Mpz::new(),
|
||||
b: Mpz::new(),
|
||||
c: Mpz::new(),
|
||||
discriminant: Mpz::new(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<B: Borrow<GmpClassGroup>> MulAssign<B> for GmpClassGroup {
|
||||
#[cfg_attr(not(debug_assertions), inline(always))]
|
||||
fn mul_assign(&mut self, rhs: B) {
|
||||
let rhs = rhs.borrow();
|
||||
debug_assert!(self.discriminant == rhs.discriminant);
|
||||
GmpClassGroup::with_context(|ctx| self.inner_multiply(rhs, ctx));
|
||||
}
|
||||
}
|
||||
|
||||
impl super::BigNum for Mpz {
|
||||
fn probab_prime(&self, iterations: u32) -> bool {
|
||||
let reps: i32 = iterations.try_into().expect("Iterations fits into i32");
|
||||
self.probab_prime(reps) != NotPrime
|
||||
}
|
||||
|
||||
fn setbit(&mut self, bit_index: usize) {
|
||||
self.setbit(bit_index)
|
||||
}
|
||||
|
||||
fn mod_powm(&mut self, base: &Self, exponent: &Self, modulus: &Self) {
|
||||
ffi::mpz_powm(self, base, exponent, modulus)
|
||||
}
|
||||
}
|
||||
|
||||
impl super::BigNumExt for Mpz {
|
||||
fn frem_u32(&self, modulus: u32) -> u32 {
|
||||
ffi::mpz_frem_u32(self, modulus)
|
||||
}
|
||||
fn crem_u16(&mut self, modulus: u16) -> u16 {
|
||||
ffi::mpz_crem_u16(self, modulus)
|
||||
}
|
||||
}
|
||||
|
||||
impl<B: Borrow<Self>> Mul<B> for GmpClassGroup {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn mul(mut self, rhs: B) -> Self {
|
||||
self *= rhs.borrow();
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a, B: Borrow<GmpClassGroup>> Mul<B> for &'a GmpClassGroup {
|
||||
type Output = GmpClassGroup;
|
||||
|
||||
#[inline(always)]
|
||||
fn mul(self, rhs: B) -> Self::Output {
|
||||
let mut s = Clone::clone(self.borrow());
|
||||
s *= rhs;
|
||||
s
|
||||
}
|
||||
}
|
||||
|
||||
impl ClassGroup for GmpClassGroup {
|
||||
type BigNum = Mpz;
|
||||
|
||||
/// Normalize `self`.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// Panics if called within a call to `Self::with_context`.
|
||||
fn normalize(&mut self) {
|
||||
Self::with_context(|x| self.inner_normalize(x))
|
||||
}
|
||||
|
||||
#[cfg_attr(not(debug_assertions), inline(always))]
|
||||
fn inverse(&mut self) {
|
||||
self.assert_valid();
|
||||
self.b = -self.b.clone();
|
||||
}
|
||||
|
||||
fn serialize(&self, buf: &mut [u8]) -> Result<(), usize> {
|
||||
self.assert_valid();
|
||||
if buf.len() & 1 == 1 {
|
||||
// odd lengths do not make sense
|
||||
Err(0)
|
||||
} else {
|
||||
let len = buf.len() >> 1;
|
||||
ffi::export_obj(&self.a, &mut buf[..len])?;
|
||||
ffi::export_obj(&self.b, &mut buf[len..])
|
||||
}
|
||||
}
|
||||
|
||||
fn from_bytes(bytearray: &[u8], discriminant: Self::BigNum) -> Self {
|
||||
let len = (ffi::size_in_bits(&discriminant) + 16) >> 4;
|
||||
let a = ffi::import_obj(&bytearray[..len]);
|
||||
let b = ffi::import_obj(&bytearray[len..]);
|
||||
Self::from_ab_discriminant(a, b, discriminant)
|
||||
}
|
||||
|
||||
fn from_ab_discriminant(a: Self::BigNum, b: Self::BigNum, discriminant: Self::BigNum) -> Self {
|
||||
let mut four_a: Self::BigNum = 4u64.into();
|
||||
four_a *= &a;
|
||||
let c = (&b * &b - &discriminant) / four_a;
|
||||
Self {
|
||||
a,
|
||||
b,
|
||||
c,
|
||||
discriminant,
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns the discriminant of `self`.
|
||||
#[inline(always)]
|
||||
fn discriminant(&self) -> &Self::BigNum {
|
||||
&self.discriminant
|
||||
}
|
||||
|
||||
fn size_in_bits(num: &Self::BigNum) -> usize {
|
||||
ffi::size_in_bits(num)
|
||||
}
|
||||
|
||||
/// Reduce `self`.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// Panics if called within a call to `Self::with_context`.
|
||||
fn reduce(&mut self) {
|
||||
Self::with_context(|x| self.inner_reduce(x))
|
||||
}
|
||||
|
||||
fn deserialize(buf: &[u8], discriminant: Self::BigNum) -> Self {
|
||||
let len = buf.len();
|
||||
debug_assert!(len != 0, "Cannot deserialize an empty buffer!");
|
||||
debug_assert!(len & 1 == 0, "Buffer must be of even length");
|
||||
let half_len = len >> 1;
|
||||
Self::from_ab_discriminant(
|
||||
ffi::import_obj(&buf[..half_len]),
|
||||
ffi::import_obj(&buf[half_len..]),
|
||||
discriminant,
|
||||
)
|
||||
}
|
||||
|
||||
/// Square `self`.ClassGroupPartial
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// Panics if called within the scope of a call to `with_context`.
|
||||
fn square(&mut self) {
|
||||
Self::with_context(|ctx| self.inner_square(ctx))
|
||||
}
|
||||
|
||||
fn unsigned_deserialize_bignum(buf: &[u8]) -> Self::BigNum {
|
||||
buf.into()
|
||||
}
|
||||
|
||||
/// Square `self` `iterations` times.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// Panics if called within the scope of a call to `with_context`.
|
||||
fn repeated_square(&mut self, iterations: u64) {
|
||||
Self::with_context(|ctx| {
|
||||
for _ in 0..iterations {
|
||||
self.inner_square(ctx)
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
fn generator_for_discriminant(discriminant: Self::BigNum) -> Self {
|
||||
let one: Mpz = One::one();
|
||||
let x: Mpz = &one - &discriminant;
|
||||
let mut form = Self::new(2.into(), one, x.div_floor(&8.into()), discriminant);
|
||||
form.reduce();
|
||||
form
|
||||
}
|
||||
|
||||
fn pow(&mut self, mut exponent: Mpz) {
|
||||
self.assert_valid();
|
||||
debug_assert!(exponent >= Mpz::zero());
|
||||
let mut state = self.identity();
|
||||
loop {
|
||||
let is_odd = exponent.tstbit(0);
|
||||
exponent >>= 1;
|
||||
if is_odd {
|
||||
state *= &*self
|
||||
}
|
||||
if exponent.is_zero() {
|
||||
*self = state;
|
||||
break;
|
||||
}
|
||||
self.square();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Default for Ctx {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
negative_a: Mpz::new(),
|
||||
r: Mpz::new(),
|
||||
denom: Mpz::new(),
|
||||
old_a: Mpz::new(),
|
||||
old_b: Mpz::new(),
|
||||
ra: Mpz::new(),
|
||||
s: Mpz::new(),
|
||||
x: Mpz::new(),
|
||||
congruence_context: Default::default(),
|
||||
w: Mpz::new(),
|
||||
m: Mpz::new(),
|
||||
u: Mpz::new(),
|
||||
l: Mpz::new(),
|
||||
j: Mpz::new(),
|
||||
t: Mpz::new(),
|
||||
a: Mpz::new(),
|
||||
b: Mpz::new(),
|
||||
k: Mpz::new(),
|
||||
h: Mpz::new(),
|
||||
mu: Mpz::new(),
|
||||
v: Mpz::new(),
|
||||
sigma: Mpz::new(),
|
||||
lambda: Mpz::new(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn do_compute(discriminant: Mpz, iterations: u64) -> GmpClassGroup {
|
||||
debug_assert!(discriminant < Zero::zero());
|
||||
debug_assert!(discriminant.probab_prime(50) != NotPrime);
|
||||
let mut f = GmpClassGroup::generator_for_discriminant(discriminant);
|
||||
f.repeated_square(iterations);
|
||||
f
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod test {
|
||||
#![allow(unused_imports)]
|
||||
use super::*;
|
||||
#[test]
|
||||
fn normalize() {
|
||||
let mut s = GmpClassGroup::new(
|
||||
16.into(),
|
||||
(-23).into(),
|
||||
5837_3892.into(),
|
||||
(-0xdead_beefi64).into(),
|
||||
);
|
||||
let mut new = GmpClassGroup {
|
||||
b: 9.into(),
|
||||
c: 5837_3885.into(),
|
||||
..s.clone()
|
||||
};
|
||||
s.normalize();
|
||||
assert_eq!(s, new);
|
||||
|
||||
s = GmpClassGroup {
|
||||
a: (1 << 16).into(),
|
||||
b: (-76951).into(),
|
||||
c: 36840.into(),
|
||||
..s
|
||||
};
|
||||
new = GmpClassGroup {
|
||||
b: 54121.into(),
|
||||
c: 25425.into(),
|
||||
..s.clone()
|
||||
};
|
||||
s.normalize();
|
||||
assert_eq!(s, new);
|
||||
}
|
||||
}
|
||||
251
crates/classgroup/src/lib.rs
Normal file
251
crates/classgroup/src/lib.rs
Normal file
@ -0,0 +1,251 @@
|
||||
// Copyright 2018 Chia Network Inc and POA Networks Ltd.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
#![deny(unsafe_code)]
|
||||
use num_traits::{One, Zero};
|
||||
use std::ops::{Mul, MulAssign, Rem, ShlAssign};
|
||||
|
||||
pub mod gmp;
|
||||
|
||||
pub mod gmp_classgroup;
|
||||
pub use self::gmp_classgroup::{
|
||||
do_compute,
|
||||
ffi::{export_obj, import_obj},
|
||||
};
|
||||
pub trait BigNum:
|
||||
Zero
|
||||
+ One
|
||||
+ Clone
|
||||
+ PartialOrd
|
||||
+ std::fmt::Debug
|
||||
+ Rem
|
||||
+ ShlAssign<usize>
|
||||
+ for<'a> MulAssign<&'a Self>
|
||||
+ std::ops::Sub<u64, Output = Self>
|
||||
+ std::ops::Add<u64, Output = Self>
|
||||
+ std::convert::From<u64>
|
||||
+ for<'a> std::convert::From<&'a [u8]>
|
||||
+ std::ops::Shl<usize, Output = Self>
|
||||
+ std::ops::Shr<usize, Output = Self>
|
||||
+ std::ops::Neg<Output = Self>
|
||||
+ std::str::FromStr
|
||||
+ for<'a> std::ops::Div<&'a Self, Output = Self>
|
||||
+ Eq
|
||||
+ std::hash::Hash
|
||||
{
|
||||
fn probab_prime(&self, iterations: u32) -> bool;
|
||||
fn setbit(&mut self, offset: usize);
|
||||
fn mod_powm(&mut self, base: &Self, exponent: &Self, modulus: &Self);
|
||||
}
|
||||
|
||||
pub trait BigNumExt: BigNum {
|
||||
fn frem_u32(&self, modulus: u32) -> u32;
|
||||
fn crem_u16(&mut self, modulus: u16) -> u16;
|
||||
}
|
||||
|
||||
pub trait ClassGroup:
|
||||
Sized + Clone + for<'a> MulAssign<&'a Self> + for<'a> Mul<&'a Self> + PartialEq + std::fmt::Debug
|
||||
{
|
||||
type BigNum: BigNum;
|
||||
|
||||
/// Produces a `Self` from `a`, `b`, and a discriminant.
|
||||
fn from_ab_discriminant(a: Self::BigNum, b: Self::BigNum, discriminant: Self::BigNum) -> Self;
|
||||
|
||||
/// Unmarshals a `Self` from a byte array and discriminant.
|
||||
///
|
||||
/// The byte array will be in the format of two big-endian byte sequences
|
||||
/// concatenated together.
|
||||
fn from_bytes(bytearray: &[u8], discriminant: Self::BigNum) -> Self;
|
||||
|
||||
/// Computes the identity element of `Self` for a given discriminant.
|
||||
///
|
||||
/// If the discriminant is not valid, the result is unspecified.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// This may panic (but is not required to) if the discriminant is not
|
||||
/// valid. If this function does not panic, the results of future
|
||||
/// operations are unspecified: they will not invoke undefined behavior,
|
||||
/// but may panic, loop forever, or just compute garbage.
|
||||
///
|
||||
/// In debug builds, this will always panic if the discriminant is invalid.
|
||||
fn identity_for_discriminant(discriminant: Self::BigNum) -> Self {
|
||||
Self::from_ab_discriminant(Self::BigNum::one(), Self::BigNum::one(), discriminant)
|
||||
}
|
||||
|
||||
/// Serializes `self` to a byte array. Returns `Err(s)` if there
|
||||
/// is not enough space in the buffer.
|
||||
///
|
||||
/// The data must be serialized in twos-complement, big-endian format.
|
||||
fn serialize(&self, buf: &mut [u8]) -> std::result::Result<(), usize>;
|
||||
|
||||
/// Deserializes a bignum from raw bytes. The bytes **must** be interpreted
|
||||
/// as a big-endian unsigned integer.
|
||||
fn unsigned_deserialize_bignum(_: &[u8]) -> Self::BigNum;
|
||||
|
||||
/// Reduce `self` in-place.
|
||||
fn reduce(&mut self);
|
||||
|
||||
/// Squares `self`, modifying it in-place.
|
||||
///
|
||||
/// A default implementation is provided, but implementations are suggested
|
||||
/// to override it for performance reasons.
|
||||
fn square(&mut self) {
|
||||
let s = self.clone();
|
||||
self.mul_assign(&s)
|
||||
}
|
||||
|
||||
/// Normalize `self`.
|
||||
fn normalize(&mut self);
|
||||
|
||||
/// The length of `num` in **bits**
|
||||
fn size_in_bits(num: &Self::BigNum) -> usize;
|
||||
|
||||
/// Gets the discriminant of `self`.
|
||||
fn discriminant(&self) -> &Self::BigNum;
|
||||
|
||||
/// Computes the identity element of a `ClassGroup`.
|
||||
fn identity(&self) -> Self {
|
||||
Self::identity_for_discriminant(self.discriminant().clone())
|
||||
}
|
||||
|
||||
/// Generates a *generator* for the class group of `Self`, given a
|
||||
/// discriminant.
|
||||
///
|
||||
/// If the discriminant is not valid, the result is unspecified.
|
||||
///
|
||||
/// # Relation to `Self::identity_for_discriminant`
|
||||
///
|
||||
/// This is *not* the same as `Self::identity_for_discriminant`: the
|
||||
/// identity element is *never* a generator for *any* group. This follows
|
||||
/// from their definitions: the identity element, when multiplied by another
|
||||
/// element, always gives that other element, whereas *every* element in the
|
||||
/// group is some power of a generator.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// This may panic (but is not required to) if the discriminant is not
|
||||
/// valid. If this function does not panic, the results of future
|
||||
/// operations are unspecified: they will not invoke undefined behavior,
|
||||
/// but may panic, loop forever, or just compute garbage.
|
||||
///
|
||||
/// If the global allocator panics on running out of memory, then this
|
||||
/// function may panic in the same situation, but it may also just abort the
|
||||
/// program instead.
|
||||
///
|
||||
/// In debug builds, this will always panic if the discriminant is invalid.
|
||||
fn generator_for_discriminant(discriminant: Self::BigNum) -> Self {
|
||||
Self::from_ab_discriminant(2.into(), One::one(), discriminant)
|
||||
}
|
||||
|
||||
/// Replaces `*self` with its inverse.
|
||||
fn inverse(&mut self);
|
||||
|
||||
/// Squares `self` repeatedly in-place.
|
||||
///
|
||||
/// Implementors of this trait are encouraged to override this
|
||||
/// with a more efficient implementation, if one exists.
|
||||
fn repeated_square(&mut self, iterations: u64) {
|
||||
for _ in 0..iterations {
|
||||
self.square()
|
||||
}
|
||||
}
|
||||
|
||||
/// Exponentiation
|
||||
fn pow(&mut self, exponent: Self::BigNum);
|
||||
|
||||
/// Deserialization
|
||||
fn deserialize(buf: &[u8], discriminant: Self::BigNum) -> Self;
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod test {
|
||||
|
||||
use std::{
|
||||
fs::File,
|
||||
io::{BufRead, BufReader},
|
||||
path::PathBuf,
|
||||
};
|
||||
|
||||
use super::{gmp_classgroup::GmpClassGroup, ClassGroup};
|
||||
use super::gmp::mpz::Mpz;
|
||||
|
||||
fn split_into_three_pieces(line: &str, c: char) -> [&str; 3] {
|
||||
let mut iter = line.split(c);
|
||||
let fst = iter.next().expect("bad test file");
|
||||
let snd = iter.next().expect("bad test file");
|
||||
let thd = iter.next().expect("bad test file");
|
||||
assert!(iter.next().is_none(), "bad test file");
|
||||
[fst, snd, thd]
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn multiplication_is_correct() {
|
||||
let manifest_path =
|
||||
std::env::var("CARGO_MANIFEST_DIR").expect("cargo should have set this");
|
||||
let mut path = PathBuf::from(&manifest_path);
|
||||
path.push("tests/multiply.txt");
|
||||
let mut f = BufReader::new(File::open(path).expect("test file missing or unreadable"));
|
||||
let mut buffer = String::new();
|
||||
loop {
|
||||
let bytes_read = f
|
||||
.read_line(&mut buffer)
|
||||
.expect("could not read from test file");
|
||||
assert!(bytes_read == buffer.len());
|
||||
if bytes_read == 0 {
|
||||
break;
|
||||
}
|
||||
if buffer.ends_with('\n') {
|
||||
buffer.pop();
|
||||
}
|
||||
if buffer.ends_with('\r') {
|
||||
buffer.pop();
|
||||
}
|
||||
let mut current_discriminant: Option<Mpz> = None;
|
||||
let q: Vec<_> = split_into_three_pieces(&buffer, '|')
|
||||
.iter()
|
||||
.map(|i| {
|
||||
let k = split_into_three_pieces(i, ',');
|
||||
|
||||
let a = Mpz::from_str_radix(k[0], 10).expect("bad test file");
|
||||
let b = Mpz::from_str_radix(k[1], 10).expect("bad test file");
|
||||
let c = Mpz::from_str_radix(k[2], 10).expect("bad test file");
|
||||
let mut discriminant: Mpz = &b * &b;
|
||||
let mut minuand: Mpz = (4u64).into();
|
||||
minuand *= &a * &c;
|
||||
discriminant -= &minuand;
|
||||
assert!(discriminant < Mpz::zero());
|
||||
// takes waaaay too long
|
||||
// assert!(discriminant.probab_prime(20) !=
|
||||
// gmp::mpz::ProbabPrimeResult::NotPrime);
|
||||
if let Some(ref q) = current_discriminant {
|
||||
assert_eq!(q, &discriminant, "mismatching discriminant in test files");
|
||||
} else {
|
||||
current_discriminant = Some(discriminant.clone());
|
||||
}
|
||||
GmpClassGroup::from_ab_discriminant(a, b, discriminant)
|
||||
})
|
||||
.collect();
|
||||
assert_eq!(q.len(), 3);
|
||||
if q[0] == q[1] {
|
||||
let mut i = q[0].clone();
|
||||
i.square();
|
||||
assert_eq!(i, q[2]);
|
||||
}
|
||||
assert_eq!(&q[1] * &q[0], q[2], "multiplication not valid");
|
||||
assert_eq!(&q[0] * &q[1], q[2], "multiplication not valid");
|
||||
buffer.clear();
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
100
crates/classgroup/tests/multiply.txt
Normal file
100
crates/classgroup/tests/multiply.txt
Normal file
@ -0,0 +1,100 @@
|
||||
10000018491751458060893889018190756675058808109876974330719629294415871248770716417843542202672894233523533522085426391611508488462673577289978500560291881560964103822003262872704649110111368415677918460552197008588860300461769848797788221536509692873112178498610293735717449110462487732034905273446995235572,6192881975696225786035966982664995064937044822044587534644251299449043731778362309709151420033302511678628887337754750911692576543520793791684926797453257880919340267222510512181015985728296989735175472866965866872698457694161211487470544291337368825900113948256559852781942460432108372735686602775132351861,447562623961213317971342646547297454284223350038133828902656285846421695114449573517005802064814603287280139301229441755696758326577197667784458131993559071961595818908854193681416803619972011522725445624820104005456169532111411278882533391024720916070194718519556110684723979632586634811370262763099820931946|10000018491751458060893889018190756675058808109876974330719629294415871248770716417843542202672894233523533522085426391611508488462673577289978500560291881560964103822003262872704649110111368415677918460552197008588860300461769848797788221536509692873112178498610293735717449110462487732034905273446995235572,6192881975696225786035966982664995064937044822044587534644251299449043731778362309709151420033302511678628887337754750911692576543520793791684926797453257880919340267222510512181015985728296989735175472866965866872698457694161211487470544291337368825900113948256559852781942460432108372735686602775132351861,447562623961213317971342646547297454284223350038133828902656285846421695114449573517005802064814603287280139301229441755696758326577197667784458131993559071961595818908854193681416803619972011522725445624820104005456169532111411278882533391024720916070194718519556110684723979632586634811370262763099820931946|19255554116382770161579383715714909264782708765539029964624834623077914838241374452996111823462588737699221151887520236764901217774034554643488538519529924118839366411749516259835028878669578401436677730193218203890014064720579917095034628468204338354122803225577022412929359504950608508400413031048217497926,15092837287167018117143864462870004173493326087323162483214185994683512256473920528820058682931229518373567536566141901399624393736734616696317492646832399845295961581562413238135817545423153806714585874605091134049460217739322207059368564835209958877374166810803213938557201936549078491894191793263450700347,234893006768044042788914260913118901546740453084924505628085298368208613193607118822477736613870586900826160773678687890939302953916150044522278344184471658898873737893277827322372416620559784208443693756270533224257971092005354126278524692768704444715469609790946460097751182675767317515935452615150233004184
|
||||
10000041052183522790242850644893154590720039288612095879016416132777489378534703527529316376767361213758229530778215090392226004364711343494340009516684351602465954563523094253968698993441741189497557646486818525059302740665570749018871945434231968929038967533223013692831944903924891259290137962329173675618,1902993169831098968408340994163042640289698812843652994188396853325597449053613940738900681358483309978075948057374939279288006967407927201371876070720282077185512088102089011109098339510946105167168603912904329219763993441428070797711607939058596983469167495985136256807429373538982995591135613664471290691,648679116947253221704188706776650677211463611636395838310356904951972039958552218839434071543988637793619482253205477878855250277635662749169650536657554110192985236141029049474956216985923614316507072329807839408341849104680142145376380471455107520480114830913820742685234228885993868983705228973767491332409|10000041052183522790242850644893154590720039288612095879016416132777489378534703527529316376767361213758229530778215090392226004364711343494340009516684351602465954563523094253968698993441741189497557646486818525059302740665570749018871945434231968929038967533223013692831944903924891259290137962329173675618,1902993169831098968408340994163042640289698812843652994188396853325597449053613940738900681358483309978075948057374939279288006967407927201371876070720282077185512088102089011109098339510946105167168603912904329219763993441428070797711607939058596983469167495985136256807429373538982995591135613664471290691,648679116947253221704188706776650677211463611636395838310356904951972039958552218839434071543988637793619482253205477878855250277635662749169650536657554110192985236141029049474956216985923614316507072329807839408341849104680142145376380471455107520480114830913820742685234228885993868983705228973767491332409|11014730391994022921548019318564443238610906141262076480168925966763126765751815894971319798676750825680596366806816953155468468927850506963854768575341863098700465049052526243803093026353195834059474734029876952052212354875982568724849333989940233032713622829273608000126280643959163722728068472850088622786,10741667368771260991465304819723549356187315169745538829427954074292104964386739024958802023185700235860418655331632400858711212007319896932342251013222776723172845936147563193613725240374195945000924112718166206035243862199173787901602224623957181722190890413718871860292878014198837725481829866947825981913,591458717193488352905603034790202837072660316706237076413003353962226001987681937225165602501036312777007571264636495875979803481147253392478958512772229202313701414596984055959140281478236518410326724468820458881999271606689529119264353275033892327553507658401114443924515886686374958949587811834733084613494
|
||||
10000381915681932465973261183425742883776417480816046593820159088331265076946313439425523314444345253320002870252043057595684488140407211015115892705028395378796407813776706176594457902083795049968208905578343034404017956993894296039160788337679442024505335413399442760803039586109332233036553257459967307992,4817573728667361865336022581228097408185105735439009440346088109945423944514625700845976724084897576632126538284617885680024575350161902075565426943435359103696435860065323384485576321976518692508202982451179520762630115309722600967720404130152140308793673263051352095721900258702511325402177650727880246935,669873650881721761367318894015191721808238052876596531632606045247446982615721443478227885999211090819818334947786875090863090531638122013530669226521626152920347047659485744946461307259365312735407042929006458450763753134816736952808194188478460912675596404179851630644942038849386883091149385220764843706257|10000381915681932465973261183425742883776417480816046593820159088331265076946313439425523314444345253320002870252043057595684488140407211015115892705028395378796407813776706176594457902083795049968208905578343034404017956993894296039160788337679442024505335413399442760803039586109332233036553257459967307992,4817573728667361865336022581228097408185105735439009440346088109945423944514625700845976724084897576632126538284617885680024575350161902075565426943435359103696435860065323384485576321976518692508202982451179520762630115309722600967720404130152140308793673263051352095721900258702511325402177650727880246935,669873650881721761367318894015191721808238052876596531632606045247446982615721443478227885999211090819818334947786875090863090531638122013530669226521626152920347047659485744946461307259365312735407042929006458450763753134816736952808194188478460912675596404179851630644942038849386883091149385220764843706257|15406883651839353468888340788129827256524366500559993343402492794080742895081542466902089892082975781941021139173750937371748781682695257732868858255213590996446142784059996942302405311028161097993332331718537383888482114789770414489490580461393020737016788325059322912336073066124099655242000162998144490191,4360823987526422964670528620808397080272081276432190896883401768539814490180903410645821165307382339042226562722529652661460320310396511517028476587614669988004410806997734064375576646534713644939599630073534432499720811712867334091133681123961660738588960398432344316577526812821260889068523826290764750305,434737123855318232136803285518736106774596594589476825779021338309188039202684276728719741767739900154018854551253981210446831263812934806367418646532886786527458187655685060926749423401952358398253824964655841491692769761412354811289837062586506164527515355144754089246394187279961001728737349715244065290684
|
||||
10000382084844819863091735393428537123796094124029988695624509543701671917373805547793586171907452267004536696714359178508237591675470611568215269390130161491021123479579310299191808477715227540644280867131359924216029489859205866802370878621090778893635118109144685744213704279596306855259529008805569484738,-444155911792016461297666514223280647275019670279235098115904524278820479908555182212414682305357120850467322036353999623022556562078881846242421627622835673248504490647482104203937046492778180626801172318868765508903156634858880238203680354870853572676123032093150013906751911065758499256507194503286999359,567054671672969689387757610046141412714538710354002952292665369546607156429867011238555624731427279061383543924144630291236714076290759079492403352598432624404020019598559946194717566760077730429172494635087510893397235439040191683342313758118884331110227782487142203190483880485876667351431228811762752414559|10000382084844819863091735393428537123796094124029988695624509543701671917373805547793586171907452267004536696714359178508237591675470611568215269390130161491021123479579310299191808477715227540644280867131359924216029489859205866802370878621090778893635118109144685744213704279596306855259529008805569484738,-444155911792016461297666514223280647275019670279235098115904524278820479908555182212414682305357120850467322036353999623022556562078881846242421627622835673248504490647482104203937046492778180626801172318868765508903156634858880238203680354870853572676123032093150013906751911065758499256507194503286999359,567054671672969689387757610046141412714538710354002952292665369546607156429867011238555624731427279061383543924144630291236714076290759079492403352598432624404020019598559946194717566760077730429172494635087510893397235439040191683342313758118884331110227782487142203190483880485876667351431228811762752414559|25233315598122077418065976820332071042466787077699487654424387918664961172156179342884760885536120785360009215201873305025819279551843543582105904004062292352688557410351568671077765651689593128194982886401323218888273326531345494420553999096902303332712335656165115841742118280506588108873800795844703864919,-21589572107561067243363628128888045942080137348693403707950771695641329996718935854060105037586070646944119604332897696206540905887323628203932721112852139156892903280775223036949323848394414919310082155940615053363132829628799672709557839434529964085755781777411447385312731490258576057970445296620960747711,229349228584333455202515805454481561086661761655883453088894599746824713549123206719584169689814830025633382253625181015273278307916408839487283320828823538420290774632766998050162873483736921565586622385485530453983863042070274251829142359266901387980967335820672065096008596106715431022577378179753339164658
|
||||
10000535283948766913969186677763146947350893764133523013624566402396075467775122389351423347627366996308717336970472190566686266526440447170486872996146388310569838407203380788397656952824650289706008150444069157387402604479170310815759950456001810768733293842505752683896727400110806658910272623240889276302,3517715128667026666780257130236186883393464552180724243651182669587910084592324227192755249223315343739548139286489599592680626480533511441942660471947189354661549994487257423179947475122454624754426244988595239282883275819687054584105503928955994194464535141072191228405010641132986293339925974908519502951,570034118010650587062470713310391834950695503036920240298132931861980289236162947574989015145270228575455513419386383991154247888350856213235253786311087987346865298158646949041224197372582390632868027286119802250763817862749191433673344918830453654023465432067298969962772419746088402608223812814936545467246|10000535283948766913969186677763146947350893764133523013624566402396075467775122389351423347627366996308717336970472190566686266526440447170486872996146388310569838407203380788397656952824650289706008150444069157387402604479170310815759950456001810768733293842505752683896727400110806658910272623240889276302,3517715128667026666780257130236186883393464552180724243651182669587910084592324227192755249223315343739548139286489599592680626480533511441942660471947189354661549994487257423179947475122454624754426244988595239282883275819687054584105503928955994194464535141072191228405010641132986293339925974908519502951,570034118010650587062470713310391834950695503036920240298132931861980289236162947574989015145270228575455513419386383991154247888350856213235253786311087987346865298158646949041224197372582390632868027286119802250763817862749191433673344918830453654023465432067298969962772419746088402608223812814936545467246|59075354970692991755903146214605554332637224507205941847466515241658938543685224447213353186403252887052183944064961699964728259961938411627544944845776708313892390437907961447141588832103578886894741951168483053303302416173045780507296127716028825436246283574600092245162214148065236680479535423660537547914,6142586061770095737227904853540455719428485301510321654081360726874454746843797212863006221294314976215484969948774214251692404250673117267549442037815482195083213974160653516820675375995512277154295678704255795063545010227709473438581077714090470093020228882800682332012139884210689872621538573295925265993,96605184581646361029373732724432135349175091555904351927012123488431445097722589746711095342410196584277564279992867684018993498546178659279293376777551513451631505380655431533215245951077120355215801949799249196142928522335615942042353764886891560316955633828555662725473411497902686741832487630568702990486
|
||||
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|
||||
10028350739307738239553437040783010537831658077620987335136512740169676263676747904072610524038617826531776850363823183733316438383606013506243196250082245650509414494066287488240898643357609392647649696817421880362011995934355791054933802156008906495889209763185641418699747996844644309107005112769042124318,-8707724909729199988066303291337645249173793540898282778024990496827621579508639942367666079187451324678862416133361451354021503910330702173658524643590899178624105480074443491370735876152164927759833250717689047284841393067105491783984924710355073809596596309834373465404107419929383484013294580151001556205,709758849546988349416271112886481225556022674837057904210411294800853958134290458192748393663317224087035819308413648727887254453418237510262143014913358121419251454923066768843049946946235581252429358021933518874438830803109875124372809973223871915099838973789742920465584130081571378073407884375094121268086|75318449301263415467735932548665333631833209464496019863964846786179367552717568503501179580307848690931127517090493242442668414948431300766436151276701082711193885234526326365772794857402011587084042826807831628195071551088506032974178171732912459672450935320336391563419572190330442739927553072512433668492,-37666884930926310053453757600840503983118095033807980727340808659295811653448510252245931091899049389573453471548035871058367468721695376360491358764096189091201995027259909431928638716214539254513869701208949761595174662474754859884399931318260163661631099379190898913272807941135716989109599181870658955411,98959195118263740892956000993748226884659367220332828268929254332674345256309662055166848715197441404549693155497652798902798133883715701424760429622411156195661335500009744018343869593442437677434882815576040667549098187431048868332096738149061496080175268157896224795266747997461998351291015430290846127991|78879828918733154172761232408717349879484411577276118445906917725867063887736403698268620449039366903222875325557071665537210036919488537356651491469585633888702020869953229589162929365722510146484615161939420331780149558523973332122378453822513488024388432239153051455307708434618917487055946350509115159954,76022832032228931560745697540761625684085285731069434889900171934534714627230254695020398894919788417337545845925550378316932977023401785630385785258013781974664129868656557307645950862628223235191878262315897562597443878541677560567949780990105397727409041603839660905756066382442879369790583798789010488305,108311876812780092185464248430819211209817518273155531596997245418001592611818208219323720419932959536655772814492616252593108875759365327114882816039706034356112007450695439375062874008822159624139628714241658551452565287963490475631456873365249553095821106476912177956653681222238113836907581862856535718737
|
||||
10028851844651833483859929571953137249991455639548429827963027247884276614126582614765754168788406967864569784762670102265610798647378386836840906226432130520069813697908016956233348000504802826879321612396642793367212498698674853695626535119160503473498038239103440516242421347929877540717111105756485685416,2125595786027029524418010744012416366895751257304333344547068089057782417304598028459234751630103098379533864111162338454453990302791615035666668646880454521909199231924063610130346480860493194786475025500179927152042631414216166076205706865335089506746163544867373884186074330874303125032398057106297186863,800913161978634698742609378449357774955505407483415355913501780948951093468088505693408572348493350961801168010893237963412292289122055848739177106855852125098292236006510856110523212361731635197072591774393685461794786770421350652687522647241859653967881884006552182286419954577117744245767788677817306762852|50429916262905224121199165505326103712322633321578675412441680250060233972857110270845245669993781820897616267433177701631160063889458653764653687193369398981186203131244488744056545097485284912257268749768458331368107477031080466529105477483573960360042156349879055924595032652993263006931935621163071940669,-27065457947223595691396496360583757525811978893552969421355220262690251856919447274985744020030753772138102799000695707517100290349316439468276434701083568894717249805760937039437729313480400330251378090593495078991541936054800615447964857892934462412215184000258243195317080477356913381022045983896051265339,162884360410278142867611075754290453359699000687335791914852080089316910769333692647979960993562595617317591055325367385753910502341805589561432506963888415490402296553372275035046411345233183682360113909981999769321373626395576042577426393704313732652524189312065702142816306042456646293512481995292218184630|53997723292458827021420578276444072896002053124414909531202213558828743141566632795132611868503445251027453958158504792518315802051451653007369750551307662332396699632827748059470875485288011830316694909885816703989889585271656952405885761371722676008299809654786389827849524552375005490619782071967768476620,-3921961296864439599504210025762424797468664702267290731411285739993844771294339132594454147684650522033462891630908841344585194018116919380259122700777039543903609394837238783496880317096351827072103366260798880944073390853134441762823497871536553346031444078137460262118850735234076150428857645894786599751,148801743068668131617014767083337764289837422117725728166091414005082627848729316116752646484455568027336119364510594603975358934000097718262611755893849397982664596027513725455266261222215386005085253076887565120162601272630243587251846986242350641739720550891898677287459766121608903079025422071040317411427
|
||||
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|
||||
10029462828108406279939177067115161395010840703955688660855251935920272008672857135011101256731718086932191566776707625465927083826902687987460773347952918706606341231446896979494902183159052228641287627294356517943283997224691515527031637969828335115038316970291491432668820800917926368076854280638205187309,-6629646230072911423556297764360629625589965368903862583111147478898388162363395818084398589541887766856708633717083099875720612184669212924373539095145308857941719336023981955297255371765324592355503775749174475673743444341624220885937903545914339945102711106579165895756968511409705213351719512183267438507,782742743661597372172423816386424221021017552503284524697466177183281891845425353410464186233869636520966594583971179297268228166989165546064661406781232750204176842910595282543729669785450570724055031796400642778914378223882150571438409693254554219540729724954243581265311980228274664427499269984624348473720|10029462828108406279939177067115161395010840703955688660855251935920272008672857135011101256731718086932191566776707625465927083826902687987460773347952918706606341231446896979494902183159052228641287627294356517943283997224691515527031637969828335115038316970291491432668820800917926368076854280638205187309,-6629646230072911423556297764360629625589965368903862583111147478898388162363395818084398589541887766856708633717083099875720612184669212924373539095145308857941719336023981955297255371765324592355503775749174475673743444341624220885937903545914339945102711106579165895756968511409705213351719512183267438507,782742743661597372172423816386424221021017552503284524697466177183281891845425353410464186233869636520966594583971179297268228166989165546064661406781232750204176842910595282543729669785450570724055031796400642778914378223882150571438409693254554219540729724954243581265311980228274664427499269984624348473720|78667156036256111077611624900655903416490936286908879028793529978954307476546731244382117972535629204391216663640753691624585098486838208251820032478479477157140644001833697695041181016581251701307504852404041540782811897181398727717806959310986773271700555774873273014053192416692372242335858566589217791557,-11681938670990905592355073596188490162953864508666802257304897456361955348551384361326321552281799532866414312577544184561189074950098884814900830627703536569755802878449922371901033061871486784064588452214883192668082672979794267084922475962025561930112420060063420934779749780994794637529679089941387143427,100087743332058471063169855843669770171915090829420561680411008586982501053400685795132793033729482971332564612241450018617179058547543051543609602249472699027915450803902552375241387388609502154707845080333148480015751381946173697011349301767118798190494650916047348538729674905622316757245591467381527471900
|
||||
46
crates/vdf/Cargo.toml
Normal file
46
crates/vdf/Cargo.toml
Normal file
@ -0,0 +1,46 @@
|
||||
# Copyright 2018 POA Networks Ltd.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# and limitations under the License.
|
||||
[package]
|
||||
name = "vdf"
|
||||
version = "0.1.0"
|
||||
authors = ["Demi M. Obenour <demiobenour@gmail.com>"]
|
||||
readme = "README.md"
|
||||
keywords = ["vdf", "classgroup", "crypto", "cryptography"]
|
||||
repository = "https://github.com/poanetwork/vdf"
|
||||
license = "Apache-2.0"
|
||||
edition = "2018"
|
||||
description = "An implementation of Verifiable Delay Functions (VDFs) in Rust"
|
||||
|
||||
[lib]
|
||||
crate-type = ["lib", "staticlib"]
|
||||
name = "vdf"
|
||||
|
||||
[dependencies]
|
||||
classgroup = { path = "../classgroup", version = "^0.1.0" }
|
||||
num-traits = "0.2"
|
||||
sha2 = "0.8"
|
||||
bit-vec = "0.5"
|
||||
uniffi = { version= "0.25", features = ["cli"]}
|
||||
|
||||
[build-dependencies]
|
||||
uniffi = { version = "0.25", features = [ "build" ] }
|
||||
|
||||
[dev-dependencies]
|
||||
criterion = ">=0.2"
|
||||
hex = "0.3"
|
||||
|
||||
[[bench]]
|
||||
name = "classgroup-bench"
|
||||
harness = false
|
||||
path = "bench/bench.rs"
|
||||
223
crates/vdf/README.md
Normal file
223
crates/vdf/README.md
Normal file
@ -0,0 +1,223 @@
|
||||
# Verifiable Delay Function (VDF) Implementation in Rust
|
||||
|
||||
## What is a VDF?
|
||||
|
||||
A Verifiable Delay Function (VDF) is a function that requires substantial time
|
||||
to evaluate (even with a polynomial number of parallel processors) but can be
|
||||
very quickly verified as correct. VDFs can be used to construct randomness
|
||||
beacons with multiple applications in a distributed network environment. By
|
||||
introducing a time delay during evaluation, VDFs prevent malicious actors from
|
||||
influencing output. The output cannot be differentiated from a random number
|
||||
until the final result is computed. See <https://eprint.iacr.org/2018/712.pdf>
|
||||
for more details.
|
||||
|
||||
## Description
|
||||
|
||||
This VDF implementation is written in Rust. The GMP library is used for
|
||||
arithmetic and greatest common divisor (GCD) calculations. We use class groups
|
||||
to implement the approaches described in the following papers:
|
||||
|
||||
1. [Simple Verifiable Delay Functions](https://eprint.iacr.org/2018/627.pdf). Pietrzak, 2018
|
||||
2. [Efficient Verifiable Delay Functions](https://eprint.iacr.org/2018/623.pdf). Wesolowski, 2018
|
||||
|
||||
The chosen generator is (2, 1, c), where c is calculated from the provided
|
||||
discriminant. A form is represented internally (a, b, c), with the
|
||||
discriminant not being used in most omputations. This implementation performs
|
||||
reduction is performed after every multiplication and squaring, as not doing so
|
||||
did not give any gains in our benchmarks.
|
||||
|
||||
|
||||
This repo includes three crates:
|
||||
|
||||
* `classgroup`: a class group implementation, as well as a trait for class
|
||||
groups.
|
||||
* `vdf`: a Verifyable Delay Function (VDF) trait, as well as an
|
||||
implementation of that trait.
|
||||
* `vdf-cli`: a command-line interface to the vdf crate. It also includes
|
||||
additional commands, which are deprecated and will be replaced by a CLI to
|
||||
the classgroup crate.
|
||||
|
||||
## Usage
|
||||
|
||||
- Install [Rust]. We (POA Networks) have tested the code with the latest
|
||||
stable, beta, and nightly versions of Rust. It may work with older
|
||||
versions, but this is not guaranteed.
|
||||
- Install the [GNU Multiple Precision Library](https://gmplib.org/)
|
||||
* On Debian and derivatives (including Ubuntu):
|
||||
```sh
|
||||
$ sudo apt-get install -y libgmp-dev
|
||||
```
|
||||
* On Red Hat and derivatives (Fedora, CentOS)
|
||||
```sh
|
||||
$ sudo dnf -y install gmp-devel
|
||||
```
|
||||
- Download and prepare the repository
|
||||
|
||||
```sh
|
||||
$ git clone https://github.com/poanetwork/vdf.git
|
||||
$ cargo install --path=vdf-cli
|
||||
$ # or for the competition binary
|
||||
$ cargo install --path=vdf-competition
|
||||
```
|
||||
|
||||
### Command Line Interface
|
||||
|
||||
To initiate, use the `vdf-cli` command followed by 2 arguments:
|
||||
|
||||
- _challenge_: byte string of arbitrary length
|
||||
- _difficulty_: number of iterations, each iteration requires more time to evaluate
|
||||
|
||||
This generates the Weslowski proof of time. To generate the Pietrzak proof of
|
||||
time, pass `-tpietrzak`. For detailed usage information, run `vdf-cli --help`.
|
||||
|
||||
Once complete you will see the output, returned as a `Vec<u8>`. The CLI tool
|
||||
hex-encodes its output.
|
||||
|
||||
**Example**
|
||||
|
||||
```sh
|
||||
$ vdf-cli aa 100
|
||||
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
|
||||
```
|
||||
|
||||
To verify, use the `vdi-cli` command with the same arguments and include the
|
||||
output.
|
||||
|
||||
**Example**
|
||||
|
||||
```sh
|
||||
$ vdf-cli aa 100 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
|
||||
Proof is valid
|
||||
```
|
||||
### VDF Library
|
||||
|
||||
<!--
|
||||
Keep as is, and possibly include argument explanations as well (for byte_length for example). May not be needed though is CLI is main user interaction tool.
|
||||
-->
|
||||
|
||||
```rust
|
||||
extern crate vdf;
|
||||
use vdf::{InvalidProof, PietrzakVDFParams, VDFParams, WesolowskiVDFParams, VDF};
|
||||
|
||||
/// The correct solution.
|
||||
const CORRECT_SOLUTION: &[u8] =
|
||||
b"\x00\x52\x71\xe8\xf9\xab\x2e\xb8\xa2\x90\x6e\x85\x1d\xfc\xb5\x54\x2e\x41\x73\xf0\x16\
|
||||
\xb8\x5e\x29\xd4\x81\xa1\x08\xdc\x82\xed\x3b\x3f\x97\x93\x7b\x7a\xa8\x24\x80\x11\x38\
|
||||
\xd1\x77\x1d\xea\x8d\xae\x2f\x63\x97\xe7\x6a\x80\x61\x3a\xfd\xa3\x0f\x2c\x30\xa3\x4b\
|
||||
\x04\x0b\xaa\xaf\xe7\x6d\x57\x07\xd6\x86\x89\x19\x3e\x5d\x21\x18\x33\xb3\x72\xa6\xa4\
|
||||
\x59\x1a\xbb\x88\xe2\xe7\xf2\xf5\xa5\xec\x81\x8b\x57\x07\xb8\x6b\x8b\x2c\x49\x5c\xa1\
|
||||
\x58\x1c\x17\x91\x68\x50\x9e\x35\x93\xf9\xa1\x68\x79\x62\x0a\x4d\xc4\xe9\x07\xdf\x45\
|
||||
\x2e\x8d\xd0\xff\xc4\xf1\x99\x82\x5f\x54\xec\x70\x47\x2c\xc0\x61\xf2\x2e\xb5\x4c\x48\
|
||||
\xd6\xaa\x5a\xf3\xea\x37\x5a\x39\x2a\xc7\x72\x94\xe2\xd9\x55\xdd\xe1\xd1\x02\xae\x2a\
|
||||
\xce\x49\x42\x93\x49\x2d\x31\xcf\xf2\x19\x44\xa8\xbc\xb4\x60\x89\x93\x06\x5c\x9a\x00\
|
||||
\x29\x2e\x8d\x3f\x46\x04\xe7\x46\x5b\x4e\xee\xfb\x49\x4f\x5b\xea\x10\x2d\xb3\x43\xbb\
|
||||
\x61\xc5\xa1\x5c\x7b\xdf\x28\x82\x06\x88\x5c\x13\x0f\xa1\xf2\xd8\x6b\xf5\xe4\x63\x4f\
|
||||
\xdc\x42\x16\xbc\x16\xef\x7d\xac\x97\x0b\x0e\xe4\x6d\x69\x41\x6f\x9a\x9a\xce\xe6\x51\
|
||||
\xd1\x58\xac\x64\x91\x5b";
|
||||
fn main() {
|
||||
// The length of the prime numbers generated, in bits.
|
||||
let num_bits: u16 = 2048;
|
||||
|
||||
// An instance of the VDF. Instances can be used arbitrarily many times.
|
||||
let pietrzak_vdf = PietrzakVDFParams(num_bits).new();
|
||||
|
||||
// Solve for the correct answer. This will take a minute or two.
|
||||
assert_eq!(
|
||||
&pietrzak_vdf.solve(b"\xaa", 10000).unwrap()[..],
|
||||
CORRECT_SOLUTION
|
||||
);
|
||||
|
||||
// Verify the answer. This should be far faster (less than a second).
|
||||
assert!(pietrzak_vdf.verify(b"\xaa", 10000, CORRECT_SOLUTION).is_ok());
|
||||
}
|
||||
```
|
||||
|
||||
## Benchmarks
|
||||
|
||||
Benchmarks are provided for the classgroup operations. To run benchmarks:
|
||||
|
||||
```sh
|
||||
$ ./bench.sh <your challenge here>
|
||||
```
|
||||
|
||||
Additional benchmarks are under development.
|
||||
|
||||
### Current Benchmarks
|
||||
|
||||
These were generated by `./bench.sh aadf`. Outliers could be due to preemption
|
||||
by the OS and/or hypervisor. Changes are relative to the previous test run
|
||||
done on the same machine. Since the previous run was done with different
|
||||
settings and/or code than reported here, these changes are not meaningful.
|
||||
|
||||
```text
|
||||
Benchmarking square with seed aadf: 512: Collecting 100 samples in estimated 5.0439 s (374k iteratio square with seed aadf: 512
|
||||
time: [13.301 us 13.333 us 13.372 us]
|
||||
change: [-22.286% -21.745% -21.225%] (p = 0.00 < 0.05)
|
||||
Performance has improved.
|
||||
Found 22 outliers among 100 measurements (22.00%)
|
||||
5 (5.00%) high mild
|
||||
17 (17.00%) high severe
|
||||
|
||||
Benchmarking multiply with seed aadf: 512: Collecting 100 samples in estimated 5.0452 s (293k iterat multiply with seed aadf: 512
|
||||
time: [17.219 us 17.251 us 17.287 us]
|
||||
change: [-24.323% -23.739% -23.149%] (p = 0.00 < 0.05)
|
||||
Performance has improved.
|
||||
Found 10 outliers among 100 measurements (10.00%)
|
||||
4 (4.00%) high mild
|
||||
6 (6.00%) high severe
|
||||
|
||||
Benchmarking square with seed aadf: 1024: Collecting 100 samples in estimated 5.0822 s (177k iterati square with seed aadf: 1024
|
||||
time: [28.672 us 28.716 us 28.767 us]
|
||||
change: [-29.947% -29.339% -28.708%] (p = 0.00 < 0.05)
|
||||
Performance has improved.
|
||||
Found 8 outliers among 100 measurements (8.00%)
|
||||
1 (1.00%) low mild
|
||||
1 (1.00%) high mild
|
||||
6 (6.00%) high severe
|
||||
|
||||
Benchmarking multiply with seed aadf: 1024: Collecting 100 samples in estimated 5.0886 s (136k itera multiply with seed aadf: 1024
|
||||
time: [37.163 us 37.207 us 37.254 us]
|
||||
change: [-21.403% -20.750% -20.170%] (p = 0.00 < 0.05)
|
||||
Performance has improved.
|
||||
Found 8 outliers among 100 measurements (8.00%)
|
||||
1 (1.00%) low mild
|
||||
1 (1.00%) high mild
|
||||
6 (6.00%) high severe
|
||||
|
||||
Benchmarking square with seed aadf: 2048: Collecting 100 samples in estimated 5.2519 s (76k iteratio square with seed aadf: 2048
|
||||
time: [69.115 us 69.254 us 69.430 us]
|
||||
change: [-28.091% -27.738% -27.341%] (p = 0.00 < 0.05)
|
||||
Performance has improved.
|
||||
Found 8 outliers among 100 measurements (8.00%)
|
||||
1 (1.00%) low mild
|
||||
1 (1.00%) high mild
|
||||
6 (6.00%) high severe
|
||||
|
||||
Benchmarking multiply with seed aadf: 2048: Collecting 100 samples in estimated 5.0554 s (56k iterat multiply with seed aadf: 2048
|
||||
time: [90.922 us 91.057 us 91.201 us]
|
||||
change: [-25.236% -24.794% -24.336%] (p = 0.00 < 0.05)
|
||||
Performance has improved.
|
||||
Found 13 outliers among 100 measurements (13.00%)
|
||||
2 (2.00%) low mild
|
||||
5 (5.00%) high mild
|
||||
6 (6.00%) high severe
|
||||
```
|
||||
|
||||
[Rust]: <https://doc.rust-lang.org/cargo/getting-started/installation.html>
|
||||
|
||||
|
||||
## License
|
||||
|
||||
Copyright 2018 Chia Network Inc and POA Networks Ltd.
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
<http://www.apache.org/licenses/LICENSE-2.0>
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
54
crates/vdf/bench/bench.rs
Normal file
54
crates/vdf/bench/bench.rs
Normal file
@ -0,0 +1,54 @@
|
||||
// Copyright 2018 POA Networks Ltd.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
#[macro_use]
|
||||
extern crate criterion;
|
||||
|
||||
use hex;
|
||||
|
||||
use classgroup::{gmp_classgroup::GmpClassGroup, ClassGroup};
|
||||
use criterion::Criterion;
|
||||
use std::{cell::RefCell, env, rc::Rc};
|
||||
use vdf::create_discriminant;
|
||||
fn bench_square(c: &mut Criterion) {
|
||||
let bench_params = |c: &mut Criterion, len: u16, seed: &[u8]| {
|
||||
let i = Rc::new(RefCell::new(GmpClassGroup::generator_for_discriminant(
|
||||
create_discriminant(seed, len),
|
||||
)));
|
||||
{
|
||||
let i = i.clone();
|
||||
c.bench_function(
|
||||
&format!("square with seed {}: {}", hex::encode(seed), len),
|
||||
move |b| b.iter(|| i.borrow_mut().square()),
|
||||
);
|
||||
}
|
||||
{
|
||||
let multiplier = i.borrow().clone();
|
||||
c.bench_function(
|
||||
&format!("multiply with seed {}: {}", hex::encode(seed), len),
|
||||
move |b| b.iter(|| *i.borrow_mut() *= &multiplier),
|
||||
);
|
||||
}
|
||||
};
|
||||
let seed = env::var("VDF_BENCHMARK_SEED")
|
||||
.ok()
|
||||
.and_then(|x| hex::decode(x).ok())
|
||||
.expect("bug in calling script");
|
||||
for &i in &[512, 1024, 2048] {
|
||||
bench_params(c, i, &seed)
|
||||
}
|
||||
}
|
||||
|
||||
criterion_group!(benches, bench_square);
|
||||
criterion_main!(benches);
|
||||
115
crates/vdf/build.rs
Normal file
115
crates/vdf/build.rs
Normal file
@ -0,0 +1,115 @@
|
||||
// Copyright 2018 Chia Network Inc and POA Networks Ltd.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
use std::{env, fs::File, io::Write, path::PathBuf, u16};
|
||||
|
||||
/// The number of odd primes less than 65536.
|
||||
const PRIMES_LEN: usize = 6541;
|
||||
|
||||
/// The number of integers that are:
|
||||
///
|
||||
/// * equal to 7 mod 8
|
||||
/// * not divisible by any prime number less than or equal to 13.
|
||||
/// * less than 8 * 3 * 5 * 7 * 11 * 13
|
||||
const RESIDUES_LEN: usize = 5760;
|
||||
|
||||
/// The number of odd prime numbers between 13 and 65536 exclusive.
|
||||
const SIEVE_INFO_LEN: usize = PRIMES_LEN - 5;
|
||||
|
||||
fn odd_primes_below_65536() -> Vec<usize> {
|
||||
const N: usize = 1 << 16;
|
||||
let mut sieve = vec![true; N >> 1];
|
||||
let mut q = (N as f64).powf(0.5) as usize;
|
||||
assert!(q * q <= N);
|
||||
q += 1;
|
||||
assert!(q * q > N);
|
||||
for i in (3..q).step_by(2) {
|
||||
if sieve[i >> 1] {
|
||||
for i in ((i * i >> 1)..sieve.len()).step_by(i) {
|
||||
sieve[i] = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
// mega cheat ― we know the exact size of this vector
|
||||
let res: Vec<_> = (1..N / 2)
|
||||
.filter(|&i| sieve[i])
|
||||
.map(|i| 2 * i + 1)
|
||||
.collect();
|
||||
assert_eq!(res.len(), PRIMES_LEN);
|
||||
res
|
||||
}
|
||||
|
||||
fn mod_exponentiation(base: usize, exponent: usize, modulus: usize) -> usize {
|
||||
assert!(base < u16::MAX.into());
|
||||
assert!(exponent < u16::MAX.into());
|
||||
assert!(modulus < u16::MAX.into());
|
||||
let (mut base, mut exponent, modulus) = (base as u32, exponent as u32, modulus as u32);
|
||||
let mut state = 1;
|
||||
loop {
|
||||
if exponent & 1 != 0 {
|
||||
state *= base;
|
||||
state %= modulus;
|
||||
}
|
||||
exponent >>= 1;
|
||||
if exponent == 0 {
|
||||
return state as _;
|
||||
}
|
||||
base *= base;
|
||||
base %= modulus;
|
||||
}
|
||||
}
|
||||
|
||||
macro_rules! const_fmt {
|
||||
() => {
|
||||
"#[allow(warnings)]\nconst {}: [{}; {}] = {:#?};\n\n";
|
||||
};
|
||||
}
|
||||
|
||||
/// A product of many small prime numbers. We precompute the numbers between
|
||||
/// `1` and `M` that are coprime to `M`. Any number whose residue modulo `M` is
|
||||
/// one of these is not divisible by any of the prime factors of `M`. This
|
||||
/// speeds up the generation of random prime numbers.
|
||||
const M: usize = 8 * 3 * 5 * 7 * 11 * 13;
|
||||
fn emit<T: std::fmt::Debug>(f: &mut dyn Write, name: &str, t: &str, obj: &[T]) {
|
||||
write!(f, const_fmt!(), name, t, obj.len(), obj).expect("i/o error in build script");
|
||||
}
|
||||
|
||||
/// Write the generated code to `f`.
|
||||
fn generate(f: &mut dyn Write) {
|
||||
write!(f, "const M: u32 = 8 * 3 * 5 * 7 * 11 * 13;\n\n").expect("i/o error");
|
||||
let residues: Vec<usize> = {
|
||||
let primes = [3, 5, 7, 11, 13];
|
||||
let not_divisible = |&x: &usize| primes.iter().all(|p| x % p != 0);
|
||||
(7..M).step_by(8).filter(not_divisible).collect()
|
||||
};
|
||||
assert_eq!(residues.len(), RESIDUES_LEN);
|
||||
emit(f, "RESIDUES", "u32", &residues[..]);
|
||||
let sieve_info: Vec<(usize, usize)> = odd_primes_below_65536()[5..]
|
||||
.iter()
|
||||
.map(|&i| (i, mod_exponentiation(M % i, i - 2, i)))
|
||||
.collect();
|
||||
assert_eq!(sieve_info.len(), SIEVE_INFO_LEN);
|
||||
emit(f, "SIEVE_INFO", "(u16, u16)", &sieve_info[..]);
|
||||
}
|
||||
|
||||
fn main() {
|
||||
println!("cargo:rerun-if-changed=build.rs");
|
||||
|
||||
uniffi::generate_scaffolding("src/lib.udl").expect("uniffi generation failed");
|
||||
|
||||
let manifest_path = env::var("OUT_DIR").expect("cargo should have set this");
|
||||
let mut path = PathBuf::from(&manifest_path);
|
||||
path.push("constants.rs");
|
||||
let mut f = File::create(path).expect("cannot create constants.rs");
|
||||
generate(&mut f);
|
||||
}
|
||||
199
crates/vdf/src/create_discriminant.rs
Normal file
199
crates/vdf/src/create_discriminant.rs
Normal file
@ -0,0 +1,199 @@
|
||||
// Copyright 2018 Chia Network Inc and POA Networks Ltd.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
//! Creation of discriminants.
|
||||
//!
|
||||
//! The [`pot`] tool does not accept a discriminant as a command-line argument.
|
||||
//! Instead, we generate the discriminant from a (much smaller) seed.
|
||||
//!
|
||||
//! For performance, we follow the Chia network's [`inkfish`] implementation
|
||||
//! of ["Close to Uniform Prime Number Generation With Fewer Random Bits"][1]
|
||||
//! by Pierre-Alain Fouque and Mehdi Tibouchi.
|
||||
//! We employ a table of precomputed constants generated by `build.rs`.
|
||||
//!
|
||||
//! [1]: https://eprint.iacr.org/2011/481.pdf
|
||||
//! [`inkfish`]: <https://github.com/Chia-Network/vdf-competition/blob/003b0d202d3b27058159f7a3f6a838e312e7d79e/inkfish/create_discriminant.py>
|
||||
//! [`pot`]: <https://github.com/Chia-Network/vdf-competition/blob/003b0d202d3b27058159f7a3f6a838e312e7d79e/inkfish/cmds.py>
|
||||
|
||||
include!(concat!(env!("OUT_DIR"), "/constants.rs"));
|
||||
|
||||
use classgroup::BigNumExt;
|
||||
use num_traits::Zero;
|
||||
use sha2::{digest::FixedOutput, Digest, Sha256};
|
||||
use std::u16;
|
||||
|
||||
fn random_bytes_from_seed(seed: &[u8], byte_count: usize) -> Vec<u8> {
|
||||
assert!(byte_count <= 32 * ((1 << 16) - 1));
|
||||
let mut blob = Vec::with_capacity(byte_count);
|
||||
let mut extra: u16 = 0;
|
||||
while blob.len() < byte_count {
|
||||
let mut hasher = Sha256::new();
|
||||
hasher.input(seed);
|
||||
let extra_bits: [u8; 2] = [((extra & 0xFF00) >> 8) as _, (extra & 0xFF) as _];
|
||||
hasher.input(&extra_bits);
|
||||
blob.extend_from_slice(&hasher.fixed_result()[..]);
|
||||
extra += 1;
|
||||
}
|
||||
blob.resize(byte_count, 0);
|
||||
blob
|
||||
}
|
||||
|
||||
/// Create a discriminant from a seed (a byte string) and a bit length (a
|
||||
/// `u16`). The discriminant is guaranteed to be a negative prime number that
|
||||
/// fits in `length` bits, except with negligible probability (less than
|
||||
/// 2^(-100)). It is also guaranteed to equal 7 modulo 8.
|
||||
///
|
||||
/// This function uses sha256 to expand the seed. Therefore, different seeds
|
||||
/// will result in completely different discriminants with overwhelming
|
||||
/// probability, unless `length` is very small. However, this function is
|
||||
/// deterministic: if it is called twice with identical seeds and lengths, it
|
||||
/// will always return the same discriminant.
|
||||
///
|
||||
/// This function is guaranteed not to panic for any inputs whatsoever, unless
|
||||
/// memory allocation fails and the allocator in use panics in that case.
|
||||
pub fn create_discriminant<T: BigNumExt>(seed: &[u8], length: u16) -> T {
|
||||
let (mut n, residue) = {
|
||||
// The number of “extra” bits (that don’t evenly fit in a byte)
|
||||
let extra: u8 = (length as u8) & 7;
|
||||
|
||||
// The number of random bytes needed (the number of bytes that hold `length`
|
||||
// bits, plus 2).
|
||||
let random_bytes_len = ((usize::from(length) + 7) >> 3) + 2;
|
||||
let random_bytes = random_bytes_from_seed(seed, random_bytes_len);
|
||||
let (n, last_2) = random_bytes.split_at(random_bytes_len - 2);
|
||||
let numerator = (usize::from(last_2[0]) << 8) + usize::from(last_2[1]);
|
||||
|
||||
// If there are any extra bits, right shift `n` so that it fits
|
||||
// in `length` bits, discarding the least significant bits.
|
||||
let n = T::from(n) >> usize::from((8 - extra) & 7);
|
||||
(n, RESIDUES[numerator % RESIDUES.len()])
|
||||
};
|
||||
n.setbit(usize::from(length - 1));
|
||||
debug_assert!(n >= Zero::zero());
|
||||
let rem = n.frem_u32(M);
|
||||
|
||||
// HACK HACK `rust-gmp` doesn’t expose += and -= with i32 or i64
|
||||
if residue > rem {
|
||||
n = n + u64::from(residue - rem);
|
||||
} else {
|
||||
n = n - u64::from(rem - residue);
|
||||
}
|
||||
debug_assert!(n >= Zero::zero());
|
||||
|
||||
// This generates the smallest prime ≥ n that is of the form n + m*x.
|
||||
loop {
|
||||
// Speed up prime-finding by quickly ruling out numbers
|
||||
// that are known to be composite.
|
||||
let mut sieve = ::bit_vec::BitVec::from_elem(1 << 16, false);
|
||||
for &(p, q) in SIEVE_INFO.iter() {
|
||||
// The reference implementation changes the sign of `n` before taking its
|
||||
// remainder. Instead, we leave `n` as positive, but use ceiling
|
||||
// division instead of floor division. This is mathematically
|
||||
// equivalent and potentially faster.
|
||||
let mut i: usize = (n.crem_u16(p) as usize * q as usize) % p as usize;
|
||||
while i < sieve.len() {
|
||||
sieve.set(i, true);
|
||||
i += p as usize;
|
||||
}
|
||||
}
|
||||
|
||||
for (i, x) in sieve.iter().enumerate() {
|
||||
if !x {
|
||||
let q = u64::from(M) * u64::from(i as u32);
|
||||
n = n + q;
|
||||
if n.probab_prime(1) {
|
||||
return -n;
|
||||
}
|
||||
n = n - q;
|
||||
}
|
||||
}
|
||||
// M is set to a number with many prime factors so the results are
|
||||
// more uniform https://eprint.iacr.org/2011/481.pdf
|
||||
// TODO: Explain previous reference to https://eprint.iacr.org/2011/401.pdf
|
||||
n = n + (u64::from(M) * (1 << 16)) as u64
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod test {
|
||||
use super::*;
|
||||
use classgroup::{gmp_classgroup::GmpClassGroup, ClassGroup};
|
||||
type Mpz = <GmpClassGroup as ClassGroup>::BigNum;
|
||||
use std::str::FromStr;
|
||||
|
||||
#[test]
|
||||
fn check_discriminant_1() {
|
||||
assert_eq!(
|
||||
create_discriminant::<Mpz>(b"\xaa", 40),
|
||||
(-685_537_176_559i64).into()
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn check_discriminant_3() {
|
||||
assert_eq!(
|
||||
create_discriminant::<Mpz>(b"\xaa", 1024),
|
||||
Mpz::from_str(
|
||||
"-112084717443890964296630631725167420667316836131914185144761\
|
||||
7438378168250988242739496385274308134767869324152361453294226\
|
||||
8295868231081182819214054220080323345750407342623884342617809\
|
||||
8794592117225058677336074005099949757067786815439982423354682\
|
||||
0386024058617141397148586038290164093146862666602485017735298\
|
||||
03183"
|
||||
)
|
||||
.unwrap()
|
||||
)
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn check_discriminant_2() {
|
||||
assert_eq!(
|
||||
create_discriminant::<Mpz>(b"\xaa", 2048),
|
||||
-Mpz::from_str(
|
||||
"201493927071865251625903550712920535753645598483515670853547009\
|
||||
878440933309489362800393797428711071833308081461824159206915864\
|
||||
150805748296170245037221957772328044276705571745811271212292422\
|
||||
075849739248257870371300001313586036515879618764093772248760562\
|
||||
386804073478433157526816295216137723803793411828867470089409596\
|
||||
238958950007370719325959579892866588928887249912429688364409867\
|
||||
895510817680171869190054122881274299350947669820596157115994418\
|
||||
034091728887584373727555384075665624624856766441009974642693066\
|
||||
751400054217209981490667208950669417773785631693879782993019167\
|
||||
69407006303085854796535778826115224633447713584423"
|
||||
)
|
||||
.unwrap()
|
||||
);
|
||||
}
|
||||
#[test]
|
||||
fn check_random_bytes() {
|
||||
assert_eq!(
|
||||
&random_bytes_from_seed(b"\xaa", 7),
|
||||
b"\x9f\x9d*\xe5\xe7<\xcb"
|
||||
);
|
||||
assert_eq!(
|
||||
&random_bytes_from_seed(b"\xaa", 258)[..],
|
||||
&b"\x9f\x9d*\xe5\xe7<\xcbq\xa4q\x8e\
|
||||
\xbc\xf0\xe3:\xa2\x98\xf8\xbd\xdc\xaa\xcbi\xcb\x10\xff\x0e\xafv\xdb\xec!\xc4K\
|
||||
\xc6Jf\xf3\xa5\xda.7\xb7\xef\x87I\x85\xb8YX\xfc\xf2\x03\xa1\x8f4\xaf`\xab\xae]n\
|
||||
\xcc,g1\x12EI\xc7\xd5\xe2\xfc\x8b\x9a\xde\xd5\xf3\x8f'\xcd\x08\x0fU\xc7\xee\xa85\
|
||||
[>\x87]\x07\x82\x00\x13\xce\xf7\xc3/@\xef\x08v\x8f\x85\x87dm(1\x8b\xd9w\xffA]xzY\
|
||||
\xa0,\xebz\xff\x03$`\x91\xb66\x88-_\xa9\xf1\xc5\x8e,\x15\xae\x8f\x04\rvhnU3f\x84\
|
||||
[{$\xa6l\x95w\xa9\x1f\xba\xa8)\x05\xe6\x8f\x167o\x11/X\x9cl\xab\x9c\xcb}\xec\x88\
|
||||
\xf8\xa5\xabXpY\xb0\x88\xed@r\x05\xba\\\x03\xf6\x91\xf8\x03\xca\x18\x1c\xcdH\x1c\
|
||||
\x91\xe1V\xed;\x94oJ\xa8 \xa4\x97\xb7K\xce\xc4e\xea\xa2\xbf\x8b\x1f\x90\x87\xc8\
|
||||
\x15\xee\x0e\x0fPC:\xb5\xe1g\x97\xea/_\x86c\xaf\x12Wp\xfd\x11\xdb\x17\xe6\x9f\
|
||||
\xa5\x8a"[..]
|
||||
);
|
||||
}
|
||||
}
|
||||
261
crates/vdf/src/lib.rs
Normal file
261
crates/vdf/src/lib.rs
Normal file
@ -0,0 +1,261 @@
|
||||
// Copyright 2018 Chia Network Inc and POA Networks Ltd.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
#![deny(warnings)]
|
||||
//! # Rust implementations of class groups and verifyable delay functions
|
||||
//!
|
||||
//! This repo includes three crates
|
||||
//!
|
||||
//! * `classgroup`, which includes a class group implementation, as well as a
|
||||
//! trait for class groups.
|
||||
//! * `vdf`, which includes a Verifyable Delay Function (VDF) trait, as well as
|
||||
//! an implementation of that trait.
|
||||
//! * `vdf-cli`, which includes a command-line interface to the `vdf` crate. It
|
||||
//! also includes additional commands, which are deprecated and will later be
|
||||
//! replaced by a CLI to the `classgroup` crate.
|
||||
//!
|
||||
//! ## Usage
|
||||
//!
|
||||
//! First, install Rust, Cargo, and the GNU Multiprecision Library (GMP). Then,
|
||||
//! follow one of the below steps.
|
||||
//!
|
||||
//! ### To use the command line interface
|
||||
//!
|
||||
//! ```sh
|
||||
//! $ git clone https://github.com/poanetwork/vdf
|
||||
//! $ cd vdf
|
||||
//! $ cargo install
|
||||
//! $ vdf-cli aa 100
|
||||
//! 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
|
||||
//! $ vdf-cli aa 100 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
|
||||
//! Proof is valid
|
||||
//! ```
|
||||
//!
|
||||
//! ### To use the VDF library
|
||||
//!
|
||||
//! ```rust
|
||||
//! extern crate vdf;
|
||||
//! use vdf::{InvalidProof, PietrzakVDFParams, VDFParams, WesolowskiVDFParams, VDF};
|
||||
//! const CORRECT_SOLUTION: &[u8] =
|
||||
//! b"\x00\x52\x71\xe8\xf9\xab\x2e\xb8\xa2\x90\x6e\x85\x1d\xfc\xb5\x54\x2e\x41\x73\xf0\x16\
|
||||
//! \xb8\x5e\x29\xd4\x81\xa1\x08\xdc\x82\xed\x3b\x3f\x97\x93\x7b\x7a\xa8\x24\x80\x11\x38\
|
||||
//! \xd1\x77\x1d\xea\x8d\xae\x2f\x63\x97\xe7\x6a\x80\x61\x3a\xfd\xa3\x0f\x2c\x30\xa3\x4b\
|
||||
//! \x04\x0b\xaa\xaf\xe7\x6d\x57\x07\xd6\x86\x89\x19\x3e\x5d\x21\x18\x33\xb3\x72\xa6\xa4\
|
||||
//! \x59\x1a\xbb\x88\xe2\xe7\xf2\xf5\xa5\xec\x81\x8b\x57\x07\xb8\x6b\x8b\x2c\x49\x5c\xa1\
|
||||
//! \x58\x1c\x17\x91\x68\x50\x9e\x35\x93\xf9\xa1\x68\x79\x62\x0a\x4d\xc4\xe9\x07\xdf\x45\
|
||||
//! \x2e\x8d\xd0\xff\xc4\xf1\x99\x82\x5f\x54\xec\x70\x47\x2c\xc0\x61\xf2\x2e\xb5\x4c\x48\
|
||||
//! \xd6\xaa\x5a\xf3\xea\x37\x5a\x39\x2a\xc7\x72\x94\xe2\xd9\x55\xdd\xe1\xd1\x02\xae\x2a\
|
||||
//! \xce\x49\x42\x93\x49\x2d\x31\xcf\xf2\x19\x44\xa8\xbc\xb4\x60\x89\x93\x06\x5c\x9a\x00\
|
||||
//! \x29\x2e\x8d\x3f\x46\x04\xe7\x46\x5b\x4e\xee\xfb\x49\x4f\x5b\xea\x10\x2d\xb3\x43\xbb\
|
||||
//! \x61\xc5\xa1\x5c\x7b\xdf\x28\x82\x06\x88\x5c\x13\x0f\xa1\xf2\xd8\x6b\xf5\xe4\x63\x4f\
|
||||
//! \xdc\x42\x16\xbc\x16\xef\x7d\xac\x97\x0b\x0e\xe4\x6d\x69\x41\x6f\x9a\x9a\xce\xe6\x51\
|
||||
//! \xd1\x58\xac\x64\x91\x5b";
|
||||
//!
|
||||
//! fn main() {
|
||||
//! let pietrzak_vdf = PietrzakVDFParams(2048).new();
|
||||
//! assert_eq!(
|
||||
//! &pietrzak_vdf.solve(b"\xaa", 100).unwrap()[..],
|
||||
//! CORRECT_SOLUTION
|
||||
//! );
|
||||
//! assert!(pietrzak_vdf.verify(b"\xaa", 100, CORRECT_SOLUTION).is_ok());
|
||||
//! }
|
||||
//! ```
|
||||
//!
|
||||
//! ### To run the benchmarks
|
||||
//!
|
||||
//! Benchmarks are provided for the classgroup operations. Run `cargo bench`
|
||||
//! to run them. Additional benchmarks are under development.
|
||||
use classgroup;
|
||||
|
||||
mod create_discriminant;
|
||||
use std::fmt::Debug;
|
||||
|
||||
pub use self::{
|
||||
create_discriminant::create_discriminant,
|
||||
proof_pietrzak::{PietrzakVDF, PietrzakVDFParams},
|
||||
proof_wesolowski::{WesolowskiVDF, WesolowskiVDFParams},
|
||||
};
|
||||
|
||||
/// Message used to report an internal miscalculation of serialization buffer
|
||||
/// sizes.
|
||||
const INCORRECT_BUFFER_SIZE: &str =
|
||||
"internal error: incorrect buffer size calculation (this is a bug)";
|
||||
|
||||
mod proof_of_time;
|
||||
mod proof_pietrzak;
|
||||
mod proof_wesolowski;
|
||||
|
||||
uniffi::include_scaffolding!("lib");
|
||||
|
||||
/// An empty struct indicating verification failure.
|
||||
///
|
||||
/// For security reasons, the functions that perform verification *do not*
|
||||
/// return any information on failure. Use `VDF::validate_params` to check if
|
||||
/// the parameters are correct.
|
||||
#[derive(Clone, Copy, Eq, PartialEq, PartialOrd, Ord, Hash, Debug)]
|
||||
pub struct InvalidProof;
|
||||
|
||||
/// An error return indicating an invalid number of iterations. The string is a
|
||||
/// human-readable message describing the valid iterations. It should not be
|
||||
/// interpreted by programs.
|
||||
#[derive(Clone, Eq, PartialEq, PartialOrd, Ord, Hash, Debug)]
|
||||
pub struct InvalidIterations(String);
|
||||
|
||||
/// The type of VDF parameters.
|
||||
///
|
||||
/// Parameters represent public information that can be shared by all users
|
||||
/// of the protocol. As such, they must implement `Clone`, so that they can
|
||||
/// be duplicated. They also must implement `Send`, so that a parallel
|
||||
/// application can send them safely across threads.
|
||||
///
|
||||
/// The parameters *do not* include the difficulty level (usually an
|
||||
/// iteration count), since that can be separate for each invocation.
|
||||
///
|
||||
/// This must implement `Clone` and `Eq`.
|
||||
pub trait VDFParams: Clone + Eq {
|
||||
type VDF: VDF + Sized;
|
||||
|
||||
/// Creates an instance of this VDF from the given parameters.
|
||||
///
|
||||
/// # Performance
|
||||
///
|
||||
/// This method is expected to be fairly cheap. For example, it is okay if
|
||||
/// it allocates memory, but it should not perform expensive computations or
|
||||
/// I/O.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// This method **MUST NOT** fail due to invalid values for `params`. Such
|
||||
/// errors should be checked by the factory functions for `Self::Params`.
|
||||
///
|
||||
/// This function **MAY** panic for other reasons. For example, it is
|
||||
/// allowed to panic if an allocation fails, or if a needed external library
|
||||
/// could not be dynamically loaded.
|
||||
fn new(self) -> Self::VDF;
|
||||
}
|
||||
|
||||
/// A Verifiable Delay Function (VDF).
|
||||
///
|
||||
/// VDFs are problems that require a certain amount of time to solve, even on a
|
||||
/// parallel machine, but can be validated much more easily.
|
||||
///
|
||||
/// While VDFs are considered to be cryptographic primitives, they generally do
|
||||
/// *not* operate on highly sensitive data. As such, implementers of this trait
|
||||
/// **do not** guarantee that they will be immune to side-channel attacks, and
|
||||
/// consumers of this trait **MUST NOT** expect this.
|
||||
///
|
||||
/// Instances of this trait are *not* expected to be `Sync`. This allows them
|
||||
/// to reuse allocations (such as scratch memory) accross invocations without
|
||||
/// the need for locking. However, they **MUST** be `Send` and `Clone`, so that
|
||||
/// consumers can duplicate them and send them across threads.
|
||||
pub trait VDF: Send + Debug {
|
||||
/// Solve an instance of this VDF, with challenge `challenge` and difficulty
|
||||
/// `difficulty`.
|
||||
///
|
||||
/// The output is to be returned in a `Vec<u8>`, so it can be stored to disk
|
||||
/// or sent over the network.
|
||||
///
|
||||
/// # Challenge format
|
||||
///
|
||||
/// The challenge is an opaque byte string of arbitrary length.
|
||||
/// Implementors **MUST NOT** make any assumptions about its contents,
|
||||
/// and **MUST** produce distinct outputs for distinct challenges
|
||||
/// (except with negiligible probability).
|
||||
///
|
||||
/// This can be most easily implemented by using the challenge as part of
|
||||
/// the input of a cryptographic hash function. The VDFs provided in this
|
||||
/// crate use this strategy.
|
||||
///
|
||||
/// The difficulty must be checked before performing any expensive
|
||||
/// computations.
|
||||
///
|
||||
/// Most applications will generate the challenge using a
|
||||
/// cryptographically-secure pseudorandom number generator, but implementors
|
||||
/// **MUST NOT** rely on this. In particular, this function must be secure
|
||||
/// even if `challenge` is chosen by an adversary. Excessive values for
|
||||
/// `difficulty` may cause excessive resource consumption, but must not
|
||||
/// create any other vulnerabilities.
|
||||
///
|
||||
/// # Complexity
|
||||
///
|
||||
/// The VDFs in this crate consume memory that does not depend on
|
||||
/// `difficulty`, and time linearly proportional to `difficulty`.
|
||||
/// Implementors of this trait should document the resource use.
|
||||
///
|
||||
/// # Purity
|
||||
///
|
||||
/// This method must have no side effects. In particular, it must be
|
||||
/// **deterministic**: it must always return the same output for the same
|
||||
/// inputs, except with negligible probability. Furthermore, while it may
|
||||
/// change `self` via interior mutability, such changes must not affect
|
||||
/// future calls to this method, `Self::check_difficulty`, or
|
||||
/// `Self::verify`. They *may* affect the `Debug` output.
|
||||
fn solve(&self, challenge: &[u8], difficulty: u64) -> Result<Vec<u8>, InvalidIterations>;
|
||||
|
||||
/// Check that the difficulty is valid.
|
||||
///
|
||||
/// This must return `Ok` if and only if `difficulty` is valid. Otherwise,
|
||||
/// it must return `Err`.
|
||||
///
|
||||
/// # Rationale
|
||||
///
|
||||
/// It would be more ideomatic Rust to use the type system to enforce that a
|
||||
/// difficulty has been validated before use. However, I (Demi) have not
|
||||
/// yet figured out an object-safe way to do so.
|
||||
fn check_difficulty(&self, difficulty: u64) -> Result<(), InvalidIterations>;
|
||||
|
||||
/// Verifies an alleged solution of this VDF, with challenge `challenge` and
|
||||
/// difficulty `difficulty`. Return `Ok(())` on success, or
|
||||
/// `Err(InvalidProof)` on failure.
|
||||
///
|
||||
/// This function *does not* return any extended error information for
|
||||
/// security reasons. To check that the difficulty is correct, call
|
||||
/// `Self::check_difficulty`.
|
||||
///
|
||||
/// # Uniqueness of valid solutions
|
||||
///
|
||||
/// For any `(challenge, difficulty)` tuple, there must be at most one
|
||||
/// `alleged_solution` (as measured by `Eq`) that causes this function to
|
||||
/// return `Ok(())`. If the difficulty is valid (as determined by
|
||||
/// `check_difficulty`), there must be exactly one such solution; otherwise,
|
||||
/// there must be none.
|
||||
///
|
||||
/// # Purity
|
||||
///
|
||||
/// This method must have no side effects. In particular, it must be
|
||||
/// **deterministic**: it must always return the same output for the same
|
||||
/// inputs. Furthermore, while it may change `self` via interior
|
||||
/// mutability, such changes must not affect future calls to this method,
|
||||
/// `Self::prove`, or `Self::check_difficulty`. Such changes **MAY** affect
|
||||
/// debugging output.
|
||||
fn verify(
|
||||
&self,
|
||||
challenge: &[u8],
|
||||
difficulty: u64,
|
||||
alleged_solution: &[u8],
|
||||
) -> Result<(), InvalidProof>;
|
||||
}
|
||||
|
||||
/// Solve and prove with the Wesolowski VDF using the given parameters.
|
||||
/// Outputs the concatenated solution and proof (in this order).
|
||||
pub fn wesolowski_solve(int_size_bits: u16, challenge: &[u8], difficulty: u32) -> Vec<u8> {
|
||||
let vdf = WesolowskiVDFParams(int_size_bits).new();
|
||||
vdf.solve(challenge, difficulty.into()).expect("invalid difficulty")
|
||||
}
|
||||
|
||||
/// Verify with the Wesolowski VDF using the given parameters.
|
||||
/// `alleged_solution` is the output of `wesolowski_solve`.
|
||||
pub fn wesolowski_verify(int_size_bits: u16, challenge: &[u8], difficulty: u32, alleged_solution: &[u8]) -> bool {
|
||||
let vdf = WesolowskiVDFParams(int_size_bits).new();
|
||||
vdf.verify(challenge, difficulty.into(), alleged_solution).is_ok()
|
||||
}
|
||||
4
crates/vdf/src/lib.udl
Normal file
4
crates/vdf/src/lib.udl
Normal file
@ -0,0 +1,4 @@
|
||||
namespace vdf {
|
||||
sequence<u8> wesolowski_solve(u16 int_size_bits, [ByRef] sequence<u8> challenge, u32 difficulty);
|
||||
boolean wesolowski_verify(u16 int_size_bits, [ByRef] sequence<u8> challenge, u32 difficulty, [ByRef] sequence<u8> alleged_solution);
|
||||
};
|
||||
88
crates/vdf/src/proof_of_time.rs
Normal file
88
crates/vdf/src/proof_of_time.rs
Normal file
@ -0,0 +1,88 @@
|
||||
// Copyright 2018 Chia Network Inc and POA Networks Ltd.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
use super::classgroup::ClassGroup;
|
||||
use std::{collections::HashMap, usize};
|
||||
|
||||
pub fn serialize<V: ClassGroup>(proof: &[V], y: &V, int_size_bits: usize) -> Vec<u8> {
|
||||
let proof_len = proof.len();
|
||||
let element_length = 2 * ((int_size_bits + 16) >> 4);
|
||||
let proof_len_in_bytes = (proof_len + 1) * element_length;
|
||||
let mut v = vec![0; proof_len_in_bytes];
|
||||
y.serialize(&mut v[0..element_length])
|
||||
.expect(super::INCORRECT_BUFFER_SIZE);
|
||||
for (index, group) in proof.iter().enumerate() {
|
||||
let offset = (index + 1) * element_length;
|
||||
group
|
||||
.serialize(&mut v[offset..offset + element_length])
|
||||
.expect(super::INCORRECT_BUFFER_SIZE)
|
||||
}
|
||||
v
|
||||
}
|
||||
pub fn deserialize_proof<T>(
|
||||
proof_blob: &[u8],
|
||||
discriminant: &T::BigNum,
|
||||
orig_length: usize,
|
||||
) -> Result<Vec<T>, ()>
|
||||
where
|
||||
T: ClassGroup,
|
||||
for<'a, 'b> &'a T: std::ops::Mul<&'b T, Output = T>,
|
||||
for<'a, 'b> &'a T::BigNum: std::ops::Mul<&'b T::BigNum, Output = T::BigNum>,
|
||||
{
|
||||
let length = T::size_in_bits(discriminant);
|
||||
if length > usize::MAX - 16 {
|
||||
return Err(());
|
||||
}
|
||||
let length = (length + 16) >> 4;
|
||||
if length == 0 {
|
||||
return Err(());
|
||||
}
|
||||
if orig_length != length {
|
||||
return Err(());
|
||||
}
|
||||
let length = length * 2;
|
||||
let proof_blob_length = proof_blob.len();
|
||||
let rem = proof_blob_length % length;
|
||||
if rem != 0 {
|
||||
return Err(());
|
||||
}
|
||||
let proof_len = proof_blob_length / length;
|
||||
let mut v = Vec::with_capacity(proof_len);
|
||||
for i in 0..proof_len {
|
||||
let offset = i * length;
|
||||
v.push(T::from_bytes(
|
||||
&proof_blob[offset..offset + length],
|
||||
discriminant.clone(),
|
||||
))
|
||||
}
|
||||
Ok(v)
|
||||
}
|
||||
|
||||
pub fn iterate_squarings<V, U>(mut x: V, powers_to_calculate: U) -> HashMap<u64, V>
|
||||
where
|
||||
V: ClassGroup,
|
||||
for<'a, 'b> &'a V: std::ops::Mul<&'b V, Output = V>,
|
||||
for<'a, 'b> &'a V::BigNum: std::ops::Mul<&'b V::BigNum, Output = V::BigNum>,
|
||||
U: Iterator<Item = u64>,
|
||||
{
|
||||
let mut powers_calculated = HashMap::new();
|
||||
let mut powers_to_calculate: Vec<u64> = powers_to_calculate.collect();
|
||||
powers_to_calculate.sort_unstable();
|
||||
let mut previous_power: u64 = 0;
|
||||
for ¤t_power in &powers_to_calculate {
|
||||
x.repeated_square(current_power - previous_power);
|
||||
powers_calculated.insert(current_power, x.clone());
|
||||
previous_power = current_power
|
||||
}
|
||||
powers_calculated
|
||||
}
|
||||
466
crates/vdf/src/proof_pietrzak.rs
Normal file
466
crates/vdf/src/proof_pietrzak.rs
Normal file
@ -0,0 +1,466 @@
|
||||
// Copyright 2018 Chia Network Inc and POA Networks Ltd.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
use super::proof_of_time::{deserialize_proof, iterate_squarings, serialize};
|
||||
use classgroup::{gmp_classgroup::GmpClassGroup, BigNumExt, ClassGroup};
|
||||
use num_traits::{One, Zero};
|
||||
use std::{fmt, num::ParseIntError, ops::Index, str::FromStr, u64, usize};
|
||||
|
||||
#[derive(PartialEq, Eq, Hash, PartialOrd, Ord, Copy, Clone, Debug)]
|
||||
pub struct Iterations(u64);
|
||||
|
||||
#[derive(PartialEq, Eq, Hash, Ord, PartialOrd, Copy, Clone, Debug)]
|
||||
pub enum InvalidIterations {
|
||||
OddNumber(u64),
|
||||
LessThan66(u64),
|
||||
}
|
||||
|
||||
#[derive(PartialEq, Eq, Clone, Debug)]
|
||||
pub struct ParseIterationsError {
|
||||
kind: Result<InvalidIterations, ParseIntError>,
|
||||
}
|
||||
|
||||
impl From<InvalidIterations> for ParseIterationsError {
|
||||
fn from(t: InvalidIterations) -> Self {
|
||||
Self { kind: Ok(t) }
|
||||
}
|
||||
}
|
||||
|
||||
impl From<ParseIntError> for ParseIterationsError {
|
||||
fn from(t: ParseIntError) -> Self {
|
||||
Self { kind: Err(t) }
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Display for InvalidIterations {
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
||||
match *self {
|
||||
InvalidIterations::OddNumber(s) => {
|
||||
write!(f, "Pietrzak iterations must be an even number, not {}", s)
|
||||
}
|
||||
InvalidIterations::LessThan66(s) => write!(
|
||||
f,
|
||||
"Pietrzak proof-of-time must run for at least 66 iterations, not {}",
|
||||
s
|
||||
),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl From<Iterations> for u64 {
|
||||
fn from(t: Iterations) -> u64 {
|
||||
t.0
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Display for ParseIterationsError {
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
||||
match self.kind {
|
||||
Ok(ref q) => <InvalidIterations as fmt::Display>::fmt(q, f),
|
||||
Err(ref q) => <ParseIntError as fmt::Display>::fmt(q, f),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl FromStr for Iterations {
|
||||
type Err = ParseIterationsError;
|
||||
fn from_str(s: &str) -> Result<Self, Self::Err> {
|
||||
Self::new(s.parse::<u64>().map_err(ParseIterationsError::from)?)
|
||||
.map_err(ParseIterationsError::from)
|
||||
}
|
||||
}
|
||||
|
||||
impl Iterations {
|
||||
pub fn new<T: Into<u64>>(iterations: T) -> Result<Iterations, InvalidIterations> {
|
||||
let iterations = iterations.into();
|
||||
if iterations & 1 != 0 {
|
||||
Err(InvalidIterations::OddNumber(iterations))
|
||||
} else if iterations < 66 {
|
||||
Err(InvalidIterations::LessThan66(iterations))
|
||||
} else {
|
||||
Ok(Iterations(iterations))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Selects a reasonable choice of cache size.
|
||||
fn approximate_i(t: Iterations) -> u64 {
|
||||
let x: f64 = (((t.0 >> 1) as f64) / 8.) * 2.0f64.ln();
|
||||
let w = x.ln() - x.ln().ln() + 0.25;
|
||||
(w / (2. * 2.0f64.ln())).round() as _
|
||||
}
|
||||
|
||||
fn sum_combinations<'a, T: IntoIterator<Item = &'a u64>>(numbers: T) -> Vec<u64> {
|
||||
let mut combinations = vec![0];
|
||||
for i in numbers {
|
||||
let mut new_combinations = combinations.clone();
|
||||
for j in combinations {
|
||||
new_combinations.push(i + j)
|
||||
}
|
||||
combinations = new_combinations
|
||||
}
|
||||
combinations.remove(0);
|
||||
combinations
|
||||
}
|
||||
|
||||
fn cache_indices_for_count(t: Iterations) -> Vec<u64> {
|
||||
let i: u64 = approximate_i(t);
|
||||
let mut curr_t = t.0;
|
||||
let mut intermediate_ts = vec![];
|
||||
for _ in 0..i {
|
||||
curr_t >>= 1;
|
||||
intermediate_ts.push(curr_t);
|
||||
if curr_t & 1 != 0 {
|
||||
curr_t += 1
|
||||
}
|
||||
}
|
||||
let mut cache_indices = sum_combinations(&intermediate_ts);
|
||||
cache_indices.sort();
|
||||
cache_indices.push(t.0);
|
||||
cache_indices
|
||||
}
|
||||
|
||||
fn generate_r_value<T>(x: &T, y: &T, sqrt_mu: &T, int_size_bits: usize) -> T::BigNum
|
||||
where
|
||||
T: ClassGroup,
|
||||
for<'a, 'b> &'a T: std::ops::Mul<&'b T, Output = T>,
|
||||
for<'a, 'b> &'a T::BigNum: std::ops::Mul<&'b T::BigNum, Output = T::BigNum>,
|
||||
{
|
||||
use sha2::{digest::FixedOutput, Digest, Sha256};
|
||||
|
||||
let size = (int_size_bits + 16) >> 4;
|
||||
let mut v = Vec::with_capacity(size * 2);
|
||||
for _ in 0..size * 2 {
|
||||
v.push(0)
|
||||
}
|
||||
let mut hasher = Sha256::new();
|
||||
for i in &[&x, &y, &sqrt_mu] {
|
||||
i.serialize(&mut v).expect(super::INCORRECT_BUFFER_SIZE);
|
||||
hasher.input(&v);
|
||||
}
|
||||
let res = hasher.fixed_result();
|
||||
T::unsigned_deserialize_bignum(&res[..16])
|
||||
}
|
||||
|
||||
fn create_proof_of_time_pietrzak<T>(
|
||||
challenge: &[u8],
|
||||
iterations: Iterations,
|
||||
int_size_bits: u16,
|
||||
) -> Vec<u8>
|
||||
where
|
||||
T: ClassGroup,
|
||||
<T as ClassGroup>::BigNum: BigNumExt,
|
||||
for<'a, 'b> &'a T: std::ops::Mul<&'b T, Output = T>,
|
||||
for<'a, 'b> &'a T::BigNum: std::ops::Mul<&'b T::BigNum, Output = T::BigNum>,
|
||||
{
|
||||
let discriminant = super::create_discriminant::create_discriminant(&challenge, int_size_bits);
|
||||
let x = T::from_ab_discriminant(2.into(), 1.into(), discriminant);
|
||||
|
||||
let delta = 8;
|
||||
let powers_to_calculate = cache_indices_for_count(iterations);
|
||||
let powers = iterate_squarings(x.clone(), powers_to_calculate.iter().cloned());
|
||||
let proof: Vec<T> = generate_proof(
|
||||
x,
|
||||
iterations,
|
||||
delta,
|
||||
&powers,
|
||||
&generate_r_value,
|
||||
usize::from(int_size_bits),
|
||||
);
|
||||
serialize(
|
||||
&proof,
|
||||
&powers[&iterations.into()],
|
||||
usize::from(int_size_bits),
|
||||
)
|
||||
}
|
||||
|
||||
pub fn check_proof_of_time_pietrzak<T>(
|
||||
challenge: &[u8],
|
||||
proof_blob: &[u8],
|
||||
iterations: u64,
|
||||
length_in_bits: u16,
|
||||
) -> Result<(), super::InvalidProof>
|
||||
where
|
||||
T: ClassGroup,
|
||||
T::BigNum: BigNumExt,
|
||||
for<'a, 'b> &'a T: std::ops::Mul<&'b T, Output = T>,
|
||||
for<'a, 'b> &'a T::BigNum: std::ops::Mul<&'b T::BigNum, Output = T::BigNum>,
|
||||
{
|
||||
let discriminant = super::create_discriminant::create_discriminant(&challenge, length_in_bits);
|
||||
let x = T::from_ab_discriminant(2.into(), 1.into(), discriminant);
|
||||
let iterations = Iterations::new(iterations).map_err(|_| super::InvalidProof)?;
|
||||
if usize::MAX - 16 < length_in_bits.into() {
|
||||
// Proof way too long.
|
||||
return Err(super::InvalidProof);
|
||||
}
|
||||
let length: usize = (usize::from(length_in_bits) + 16usize) >> 4;
|
||||
if proof_blob.len() < 2 * length {
|
||||
// Invalid length of proof
|
||||
return Err(super::InvalidProof);
|
||||
}
|
||||
let result_bytes = &proof_blob[..length * 2];
|
||||
let proof_bytes = &proof_blob[length * 2..];
|
||||
let discriminant = x.discriminant().clone();
|
||||
let proof =
|
||||
deserialize_proof(proof_bytes, &discriminant, length).map_err(|()| super::InvalidProof)?;
|
||||
let y = T::from_bytes(result_bytes, discriminant);
|
||||
verify_proof(
|
||||
&x,
|
||||
&y,
|
||||
proof,
|
||||
iterations,
|
||||
8,
|
||||
&generate_r_value,
|
||||
length_in_bits.into(),
|
||||
)
|
||||
.map_err(|()| super::InvalidProof)
|
||||
}
|
||||
|
||||
fn calculate_final_t(t: Iterations, delta: usize) -> u64 {
|
||||
let mut curr_t = t.0;
|
||||
let mut ts = vec![];
|
||||
while curr_t != 2 {
|
||||
ts.push(curr_t);
|
||||
curr_t >>= 1;
|
||||
if curr_t & 1 == 1 {
|
||||
curr_t += 1
|
||||
}
|
||||
}
|
||||
ts.push(2);
|
||||
ts.push(1);
|
||||
assert!(ts.len() >= delta);
|
||||
ts[ts.len() - delta]
|
||||
}
|
||||
|
||||
pub fn generate_proof<T, U, V>(
|
||||
x: V,
|
||||
iterations: Iterations,
|
||||
delta: usize,
|
||||
powers: &T,
|
||||
generate_r_value: &U,
|
||||
int_size_bits: usize,
|
||||
) -> Vec<V>
|
||||
where
|
||||
T: for<'a> Index<&'a u64, Output = V>,
|
||||
U: Fn(&V, &V, &V, usize) -> V::BigNum,
|
||||
V: ClassGroup,
|
||||
for<'a, 'b> &'a V: std::ops::Mul<&'b V, Output = V>,
|
||||
for<'a, 'b> &'a V::BigNum: std::ops::Mul<&'b V::BigNum, Output = V::BigNum>,
|
||||
{
|
||||
let identity = x.identity();
|
||||
let i = approximate_i(iterations);
|
||||
let mut mus = vec![];
|
||||
let mut rs: Vec<V::BigNum> = vec![];
|
||||
let mut x_p = vec![x];
|
||||
let mut curr_t = iterations.0;
|
||||
|
||||
let mut y_p = vec![powers[&curr_t].clone()];
|
||||
|
||||
let mut ts = vec![];
|
||||
|
||||
let final_t = calculate_final_t(iterations, delta);
|
||||
|
||||
let mut round_index = 0;
|
||||
while curr_t != final_t {
|
||||
assert_eq!(curr_t & 1, 0);
|
||||
let half_t = curr_t >> 1;
|
||||
ts.push(half_t);
|
||||
assert!(round_index < 63);
|
||||
let denominator: u64 = 1 << (round_index + 1);
|
||||
|
||||
mus.push(if round_index < i {
|
||||
let mut mu = identity.clone();
|
||||
for numerator in (1..denominator).step_by(2) {
|
||||
let num_bits = 62 - denominator.leading_zeros() as usize;
|
||||
let mut r_prod: V::BigNum = One::one();
|
||||
for b in (0..num_bits).rev() {
|
||||
if 0 == (numerator & (1 << (b + 1))) {
|
||||
r_prod *= &rs[num_bits - b - 1]
|
||||
}
|
||||
}
|
||||
let mut t_sum = half_t;
|
||||
for b in 0..num_bits {
|
||||
if 0 != (numerator & (1 << (b + 1))) {
|
||||
t_sum += ts[num_bits - b - 1]
|
||||
}
|
||||
}
|
||||
let mut power = powers[&t_sum].clone();
|
||||
power.pow(r_prod);
|
||||
mu *= &power;
|
||||
}
|
||||
mu
|
||||
} else {
|
||||
let mut mu = x_p.last().unwrap().clone();
|
||||
for _ in 0..half_t {
|
||||
mu *= &mu.clone()
|
||||
}
|
||||
mu
|
||||
});
|
||||
let mut mu: V = mus.last().unwrap().clone();
|
||||
let last_r: V::BigNum = generate_r_value(&x_p[0], &y_p[0], &mu, int_size_bits);
|
||||
assert!(last_r >= Zero::zero());
|
||||
rs.push(last_r.clone());
|
||||
{
|
||||
let mut last_x: V = x_p.last().unwrap().clone();
|
||||
last_x.pow(last_r.clone());
|
||||
last_x *= μ
|
||||
x_p.push(last_x);
|
||||
}
|
||||
mu.pow(last_r);
|
||||
mu *= y_p.last().unwrap();
|
||||
y_p.push(mu);
|
||||
curr_t >>= 1;
|
||||
if curr_t & 1 != 0 {
|
||||
curr_t += 1;
|
||||
y_p.last_mut().unwrap().square();
|
||||
}
|
||||
round_index += 1
|
||||
}
|
||||
if cfg!(debug_assertions) {
|
||||
let mut last_y = y_p.last().unwrap().clone();
|
||||
let mut last_x = x_p.last().unwrap().clone();
|
||||
let one: V::BigNum = 1u64.into();
|
||||
last_y.pow(one.clone());
|
||||
assert_eq!(last_y, y_p.last().unwrap().clone());
|
||||
last_x.pow(one << final_t as usize);
|
||||
}
|
||||
mus
|
||||
}
|
||||
|
||||
pub fn verify_proof<T, U, V>(
|
||||
x_initial: &V,
|
||||
y_initial: &V,
|
||||
proof: T,
|
||||
t: Iterations,
|
||||
delta: usize,
|
||||
generate_r_value: &U,
|
||||
int_size_bits: usize,
|
||||
) -> Result<(), ()>
|
||||
where
|
||||
T: IntoIterator<Item = V>,
|
||||
U: Fn(&V, &V, &V, usize) -> V::BigNum,
|
||||
V: ClassGroup,
|
||||
for<'a, 'b> &'a V: std::ops::Mul<&'b V, Output = V>,
|
||||
for<'a, 'b> &'a V::BigNum: std::ops::Mul<&'b V::BigNum, Output = V::BigNum>,
|
||||
{
|
||||
let mut one: V::BigNum = One::one();
|
||||
let (mut x, mut y): (V, V) = (x_initial.clone(), y_initial.clone());
|
||||
let final_t = calculate_final_t(t, delta);
|
||||
let mut curr_t = t.0;
|
||||
for mut mu in proof {
|
||||
assert!(
|
||||
curr_t & 1 == 0,
|
||||
"Cannot have an odd number of iterations remaining"
|
||||
);
|
||||
let r = generate_r_value(x_initial, y_initial, &mu, int_size_bits);
|
||||
x.pow(r.clone());
|
||||
x *= μ
|
||||
mu.pow(r);
|
||||
y *= μ
|
||||
|
||||
curr_t >>= 1;
|
||||
if curr_t & 1 != 0 {
|
||||
curr_t += 1;
|
||||
y.square();
|
||||
}
|
||||
}
|
||||
one <<= final_t as _;
|
||||
x.pow(one);
|
||||
if x == y {
|
||||
Ok(())
|
||||
} else {
|
||||
Err(())
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct PietrzakVDF {
|
||||
int_size_bits: u16,
|
||||
}
|
||||
use super::InvalidIterations as Bad;
|
||||
|
||||
#[derive(Clone, Copy, Eq, PartialEq, PartialOrd, Ord, Hash, Debug)]
|
||||
pub struct PietrzakVDFParams(pub u16);
|
||||
impl super::VDFParams for PietrzakVDFParams {
|
||||
type VDF = PietrzakVDF;
|
||||
fn new(self) -> Self::VDF {
|
||||
PietrzakVDF {
|
||||
int_size_bits: self.0,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl super::VDF for PietrzakVDF {
|
||||
fn check_difficulty(&self, difficulty: u64) -> Result<(), Bad> {
|
||||
Iterations::new(difficulty)
|
||||
.map_err(|x| Bad(format!("{}", x)))
|
||||
.map(drop)
|
||||
}
|
||||
fn solve(&self, challenge: &[u8], difficulty: u64) -> Result<Vec<u8>, Bad> {
|
||||
Ok(create_proof_of_time_pietrzak::<GmpClassGroup>(
|
||||
challenge,
|
||||
Iterations::new(difficulty).map_err(|x| Bad(format!("{}", x)))?,
|
||||
self.int_size_bits,
|
||||
))
|
||||
}
|
||||
|
||||
fn verify(
|
||||
&self,
|
||||
challenge: &[u8],
|
||||
difficulty: u64,
|
||||
alleged_solution: &[u8],
|
||||
) -> Result<(), super::InvalidProof> {
|
||||
check_proof_of_time_pietrzak::<GmpClassGroup>(
|
||||
challenge,
|
||||
alleged_solution,
|
||||
difficulty,
|
||||
self.int_size_bits,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod test {
|
||||
use super::*;
|
||||
#[test]
|
||||
fn check_approximate_i() {
|
||||
assert_eq!(approximate_i(Iterations(534)), 2);
|
||||
assert_eq!(approximate_i(Iterations(134)), 1);
|
||||
assert_eq!(approximate_i(Iterations(1024)), 2);
|
||||
}
|
||||
#[test]
|
||||
fn check_cache_indices() {
|
||||
assert_eq!(cache_indices_for_count(Iterations(66))[..], [33, 66]);
|
||||
assert_eq!(
|
||||
cache_indices_for_count(Iterations(534))[..],
|
||||
[134, 267, 401, 534]
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn check_calculate_final_t() {
|
||||
assert_eq!(calculate_final_t(Iterations(1024), 8), 128);
|
||||
assert_eq!(calculate_final_t(Iterations(1000), 8), 126);
|
||||
assert_eq!(calculate_final_t(Iterations(100), 8), 100);
|
||||
}
|
||||
#[test]
|
||||
fn check_assuptions_about_stdlib() {
|
||||
assert_eq!(62 - u64::leading_zeros(1024u64), 9);
|
||||
let mut q: Vec<_> = (1..4).step_by(2).collect();
|
||||
assert_eq!(q[..], [1, 3]);
|
||||
q = (1..3).step_by(2).collect();
|
||||
assert_eq!(q[..], [1]);
|
||||
q = (1..2).step_by(2).collect();
|
||||
assert_eq!(q[..], [1]);
|
||||
}
|
||||
}
|
||||
316
crates/vdf/src/proof_wesolowski.rs
Normal file
316
crates/vdf/src/proof_wesolowski.rs
Normal file
@ -0,0 +1,316 @@
|
||||
// Copyright 2018 POA Networks Ltd.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
use super::proof_of_time::{iterate_squarings, serialize};
|
||||
use classgroup::{gmp_classgroup::GmpClassGroup, BigNum, BigNumExt, ClassGroup};
|
||||
use sha2::{digest::FixedOutput, Digest, Sha256};
|
||||
use std::{cmp::Eq, collections::HashMap, hash::Hash, mem, u64, usize};
|
||||
use std::convert::TryInto;
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct WesolowskiVDF {
|
||||
int_size_bits: u16,
|
||||
}
|
||||
use super::InvalidIterations as Bad;
|
||||
|
||||
#[derive(Clone, Copy, Eq, PartialEq, PartialOrd, Ord, Hash, Debug)]
|
||||
pub struct WesolowskiVDFParams(pub u16);
|
||||
impl super::VDFParams for WesolowskiVDFParams {
|
||||
type VDF = WesolowskiVDF;
|
||||
fn new(self) -> Self::VDF {
|
||||
WesolowskiVDF {
|
||||
int_size_bits: self.0,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl super::VDF for WesolowskiVDF {
|
||||
fn check_difficulty(&self, _difficulty: u64) -> Result<(), Bad> {
|
||||
Ok(())
|
||||
}
|
||||
fn solve(&self, challenge: &[u8], difficulty: u64) -> Result<Vec<u8>, Bad> {
|
||||
if difficulty > usize::MAX as u64 {
|
||||
Err(Bad("Cannot have more that usize::MAX iterations".to_owned()))
|
||||
} else {
|
||||
Ok(create_proof_of_time_wesolowski::<
|
||||
<GmpClassGroup as ClassGroup>::BigNum,
|
||||
GmpClassGroup,
|
||||
>(
|
||||
challenge, difficulty as usize, self.int_size_bits
|
||||
))
|
||||
}
|
||||
}
|
||||
|
||||
fn verify(
|
||||
&self,
|
||||
challenge: &[u8],
|
||||
difficulty: u64,
|
||||
alleged_solution: &[u8],
|
||||
) -> Result<(), super::InvalidProof> {
|
||||
check_proof_of_time_wesolowski::<<GmpClassGroup as ClassGroup>::BigNum, GmpClassGroup>(
|
||||
challenge,
|
||||
alleged_solution,
|
||||
difficulty,
|
||||
self.int_size_bits,
|
||||
)
|
||||
.map_err(|()| super::InvalidProof)
|
||||
}
|
||||
}
|
||||
/// To quote the original Python code:
|
||||
///
|
||||
/// > Create `L` and `k` parameters from papers, based on how many iterations
|
||||
/// > need to be performed, and how much memory should be used.
|
||||
pub fn approximate_parameters(t: f64) -> (usize, u8, u64) {
|
||||
let log_memory = (10_000_000.0f64).log2();
|
||||
let log_t = (t as f64).log2();
|
||||
let l = if log_t - log_memory > 0. {
|
||||
2.0f64.powf(log_memory - 20.).ceil()
|
||||
} else {
|
||||
1.
|
||||
};
|
||||
|
||||
let intermediate = t * (2.0f64).ln() / (2.0 * l);
|
||||
let k = (intermediate.ln() - intermediate.ln().ln() + 0.25)
|
||||
.round()
|
||||
.max(1.);
|
||||
|
||||
let w = (t / (t / k + l * (2.0f64).powf(k + 1.0)) - 2.0).floor();
|
||||
(l as _, k as _, w as _)
|
||||
}
|
||||
|
||||
fn u64_to_bytes(q: u64) -> [u8; 8] {
|
||||
if false {
|
||||
// This use of `std::mem::transumte` is correct, but still not justified.
|
||||
unsafe { std::mem::transmute(q.to_be()) }
|
||||
} else {
|
||||
[
|
||||
(q >> 56) as u8,
|
||||
(q >> 48) as u8,
|
||||
(q >> 40) as u8,
|
||||
(q >> 32) as u8,
|
||||
(q >> 24) as u8,
|
||||
(q >> 16) as u8,
|
||||
(q >> 8) as u8,
|
||||
q as u8,
|
||||
]
|
||||
}
|
||||
}
|
||||
|
||||
/// Quote:
|
||||
///
|
||||
/// > Creates a random prime based on input s.
|
||||
fn hash_prime<T: BigNum>(seed: &[&[u8]], t: u32) -> T {
|
||||
let mut j = 0u64;
|
||||
loop {
|
||||
let mut hasher = Sha256::new();
|
||||
hasher.input(b"prime");
|
||||
hasher.input(u64_to_bytes(j));
|
||||
for i in seed {
|
||||
hasher.input(i);
|
||||
}
|
||||
hasher.input(t.to_be_bytes());
|
||||
let n = T::from(&hasher.fixed_result()[..16]);
|
||||
if n.probab_prime(1) {
|
||||
break n;
|
||||
}
|
||||
j += 1;
|
||||
}
|
||||
}
|
||||
|
||||
/// Quote:
|
||||
///
|
||||
/// > Get“s the ith block of `2^T // B`, such that `sum(get_block(i) * 2^(k*i))
|
||||
/// > = t^T // B`
|
||||
fn get_block<T: BigNumExt>(i: u64, k: u8, t: u64, b: &T) -> T {
|
||||
let mut res = T::from(0);
|
||||
let two = T::from(2);
|
||||
res.mod_powm(&two, &T::from(t - u64::from(k) * (i + 1)), b);
|
||||
res *= &((two >> 1) << (k as usize));
|
||||
res / b
|
||||
}
|
||||
|
||||
fn eval_optimized<T, U: BigNumExt, L: ClassGroup<BigNum = U> + Eq + Hash>(
|
||||
h: &L,
|
||||
b: &U,
|
||||
t: usize,
|
||||
k: u8,
|
||||
l: usize,
|
||||
powers: &T,
|
||||
) -> L
|
||||
where
|
||||
T: for<'a> std::ops::Index<&'a u64, Output = L>,
|
||||
{
|
||||
assert!(k > 0, "k cannot be zero");
|
||||
assert!(l > 0, "l cannot be zero");
|
||||
let kl = (k as usize)
|
||||
.checked_mul(l)
|
||||
.expect("computing k*l overflowed a u64");
|
||||
assert!(kl <= u64::MAX as _);
|
||||
assert!((kl as u64) < (1u64 << 53), "k*l overflowed an f64");
|
||||
assert!((t as u64) < (1u64 << 53), "t overflows an f64");
|
||||
assert!(
|
||||
k < (mem::size_of::<usize>() << 3) as u8,
|
||||
"k must be less than the number of bits in a usize"
|
||||
);
|
||||
let k1 = k >> 1;
|
||||
let k0 = k - k1;
|
||||
let mut x = h.identity();
|
||||
let identity = h.identity();
|
||||
let k_exp = 1usize << k;
|
||||
let k0_exp = 1usize << k0;
|
||||
let k1_exp = 1usize << k1;
|
||||
for j in (0..l).rev() {
|
||||
x.pow(U::from(k_exp as u64));
|
||||
let mut ys: HashMap<U, L> = HashMap::new();
|
||||
for b in 0..1usize << k {
|
||||
ys.entry(U::from(b as u64))
|
||||
.or_insert_with(|| identity.clone());
|
||||
}
|
||||
let end_of_loop = ((t as f64) / kl as f64).ceil() as usize;
|
||||
assert!(end_of_loop == 0 || (end_of_loop as u64 - 1).checked_mul(l as u64).is_some());
|
||||
for i in 0..end_of_loop {
|
||||
if t < k as usize * (i * l + j + 1) {
|
||||
continue;
|
||||
}
|
||||
let b = get_block((i as u64) * (l as u64), k, t as _, b);
|
||||
*ys.get_mut(&b).unwrap() *= &powers[&((i * kl) as _)];
|
||||
}
|
||||
|
||||
for b1 in 0..k1_exp {
|
||||
let mut z = identity.clone();
|
||||
for b0 in 0..k0_exp {
|
||||
z *= &ys[&U::from((b1 * k0_exp + b0) as u64)]
|
||||
}
|
||||
z.pow(U::from((b1 as u64) * (k0_exp as u64)));
|
||||
x *= &z;
|
||||
}
|
||||
|
||||
for b0 in 0..k0_exp {
|
||||
let mut z = identity.clone();
|
||||
for b1 in 0..k1_exp {
|
||||
z *= &ys[&U::from((b1 * k0_exp + b0) as u64)];
|
||||
}
|
||||
z.pow(U::from(b0 as u64));
|
||||
x *= &z;
|
||||
}
|
||||
}
|
||||
x
|
||||
}
|
||||
|
||||
pub fn generate_proof<U, T: BigNumExt, V: ClassGroup<BigNum = T> + Eq + Hash>(
|
||||
x: &V,
|
||||
iterations: u64,
|
||||
k: u8,
|
||||
l: usize,
|
||||
powers: &U,
|
||||
int_size_bits: usize,
|
||||
) -> V
|
||||
where
|
||||
U: for<'a> std::ops::Index<&'a u64, Output = V>,
|
||||
{
|
||||
let element_len = 2 * ((int_size_bits + 16) >> 4);
|
||||
let mut x_buf = vec![0; element_len];
|
||||
x.serialize(&mut x_buf[..])
|
||||
.expect(super::INCORRECT_BUFFER_SIZE);
|
||||
let mut y_buf = vec![0; element_len];
|
||||
powers[&iterations]
|
||||
.serialize(&mut y_buf[..])
|
||||
.expect(super::INCORRECT_BUFFER_SIZE);
|
||||
let b = hash_prime(
|
||||
&[&x_buf[..], &y_buf[..]],
|
||||
iterations.try_into().expect("iterations fit into u32")
|
||||
);
|
||||
eval_optimized(&x, &b, iterations as _, k, l, powers)
|
||||
}
|
||||
|
||||
/// Verify a proof, according to the Wesolowski paper.
|
||||
pub fn verify_proof<T: BigNum, V: ClassGroup<BigNum = T>>(
|
||||
mut x: V,
|
||||
y: &V,
|
||||
mut proof: V,
|
||||
t: u64,
|
||||
int_size_bits: usize,
|
||||
) -> Result<(), ()> {
|
||||
let element_len = 2 * ((int_size_bits + 16) >> 4);
|
||||
let mut x_buf = vec![0; element_len];
|
||||
x.serialize(&mut x_buf[..])
|
||||
.expect(super::INCORRECT_BUFFER_SIZE);
|
||||
let mut y_buf = vec![0; element_len];
|
||||
y.serialize(&mut y_buf[..])
|
||||
.expect(super::INCORRECT_BUFFER_SIZE);
|
||||
let b = hash_prime(
|
||||
&[&x_buf[..], &y_buf[..]],
|
||||
t.try_into().expect("iterations fit into u32")
|
||||
);
|
||||
let mut r = T::from(0);
|
||||
r.mod_powm(&T::from(2u64), &T::from(t), &b);
|
||||
proof.pow(b);
|
||||
x.pow(r);
|
||||
proof *= &x;
|
||||
if &proof == y {
|
||||
Ok(())
|
||||
} else {
|
||||
Err(())
|
||||
}
|
||||
}
|
||||
|
||||
pub fn create_proof_of_time_wesolowski<T: BigNumExt, V: ClassGroup<BigNum = T> + Eq + Hash>(
|
||||
challenge: &[u8],
|
||||
iterations: usize,
|
||||
int_size_bits: u16,
|
||||
) -> Vec<u8>
|
||||
where
|
||||
for<'a, 'b> &'a V: std::ops::Mul<&'b V, Output = V>,
|
||||
for<'a, 'b> &'a V::BigNum: std::ops::Mul<&'b V::BigNum, Output = V::BigNum>,
|
||||
{
|
||||
let discriminant = super::create_discriminant::create_discriminant(&challenge, int_size_bits);
|
||||
let x = V::from_ab_discriminant(2.into(), 1.into(), discriminant);
|
||||
assert!((iterations as u128) < (1u128 << 53));
|
||||
let (l, k, _) = approximate_parameters(iterations as f64);
|
||||
let q = l.checked_mul(k as _).expect("bug");
|
||||
let powers = iterate_squarings(
|
||||
x.clone(),
|
||||
(0..=iterations / q + 1)
|
||||
.map(|i| i * q)
|
||||
.chain(Some(iterations))
|
||||
.map(|x| x as _),
|
||||
);
|
||||
let proof = generate_proof(&x, iterations as _, k, l, &powers, int_size_bits.into());
|
||||
serialize(&[proof], &powers[&(iterations as _)], int_size_bits.into())
|
||||
}
|
||||
|
||||
pub fn check_proof_of_time_wesolowski<T: BigNum, V: ClassGroup<BigNum = T>>(
|
||||
challenge: &[u8],
|
||||
proof_blob: &[u8],
|
||||
iterations: u64,
|
||||
int_size_bits: u16,
|
||||
) -> Result<(), ()>
|
||||
where
|
||||
T: BigNumExt,
|
||||
{
|
||||
let discriminant: T = super::create_discriminant::create_discriminant(challenge, int_size_bits);
|
||||
let x = V::from_ab_discriminant(2.into(), 1.into(), discriminant.clone());
|
||||
if (usize::MAX - 16) < int_size_bits.into() {
|
||||
return Err(());
|
||||
}
|
||||
let int_size = (usize::from(int_size_bits) + 16) >> 4;
|
||||
if int_size * 4 != proof_blob.len() {
|
||||
return Err(());
|
||||
}
|
||||
let (result_bytes, proof_bytes) = proof_blob.split_at(2 * int_size);
|
||||
let proof = ClassGroup::from_bytes(proof_bytes, discriminant.clone());
|
||||
let y = ClassGroup::from_bytes(result_bytes, discriminant);
|
||||
|
||||
verify_proof(x, &y, proof, iterations, int_size_bits.into())
|
||||
}
|
||||
811
docker/rustup-init.sh
Executable file
811
docker/rustup-init.sh
Executable file
@ -0,0 +1,811 @@
|
||||
#!/bin/sh
|
||||
# shellcheck shell=dash
|
||||
# shellcheck disable=SC2039 # local is non-POSIX
|
||||
|
||||
# This is just a little script that can be downloaded from the internet to
|
||||
# install rustup. It just does platform detection, downloads the installer
|
||||
# and runs it.
|
||||
|
||||
# It runs on Unix shells like {a,ba,da,k,z}sh. It uses the common `local`
|
||||
# extension. Note: Most shells limit `local` to 1 var per line, contra bash.
|
||||
|
||||
# Some versions of ksh have no `local` keyword. Alias it to `typeset`, but
|
||||
# beware this makes variables global with f()-style function syntax in ksh93.
|
||||
# mksh has this alias by default.
|
||||
has_local() {
|
||||
# shellcheck disable=SC2034 # deliberately unused
|
||||
local _has_local
|
||||
}
|
||||
|
||||
has_local 2>/dev/null || alias local=typeset
|
||||
|
||||
is_zsh() {
|
||||
[ -n "${ZSH_VERSION-}" ]
|
||||
}
|
||||
|
||||
set -u
|
||||
|
||||
# If RUSTUP_UPDATE_ROOT is unset or empty, default it.
|
||||
RUSTUP_UPDATE_ROOT="${RUSTUP_UPDATE_ROOT:-https://static.rust-lang.org/rustup}"
|
||||
|
||||
# NOTICE: If you change anything here, please make the same changes in setup_mode.rs
|
||||
usage() {
|
||||
cat <<EOF
|
||||
rustup-init 1.27.1 (a8e4f5c64 2024-04-24)
|
||||
|
||||
The installer for rustup
|
||||
|
||||
Usage: rustup-init[EXE] [OPTIONS]
|
||||
|
||||
Options:
|
||||
-v, --verbose
|
||||
Enable verbose output
|
||||
-q, --quiet
|
||||
Disable progress output
|
||||
-y
|
||||
Disable confirmation prompt.
|
||||
--default-host <default-host>
|
||||
Choose a default host triple
|
||||
--default-toolchain <default-toolchain>
|
||||
Choose a default toolchain to install. Use 'none' to not install any toolchains at all
|
||||
--profile <profile>
|
||||
[default: default] [possible values: minimal, default, complete]
|
||||
-c, --component <components>...
|
||||
Component name to also install
|
||||
-t, --target <targets>...
|
||||
Target name to also install
|
||||
--no-update-default-toolchain
|
||||
Don't update any existing default toolchain after install
|
||||
--no-modify-path
|
||||
Don't configure the PATH environment variable
|
||||
-h, --help
|
||||
Print help
|
||||
-V, --version
|
||||
Print version
|
||||
EOF
|
||||
}
|
||||
|
||||
main() {
|
||||
downloader --check
|
||||
need_cmd uname
|
||||
need_cmd mktemp
|
||||
need_cmd chmod
|
||||
need_cmd mkdir
|
||||
need_cmd rm
|
||||
need_cmd rmdir
|
||||
|
||||
get_architecture || return 1
|
||||
local _arch="$RETVAL"
|
||||
assert_nz "$_arch" "arch"
|
||||
|
||||
local _ext=""
|
||||
case "$_arch" in
|
||||
*windows*)
|
||||
_ext=".exe"
|
||||
;;
|
||||
esac
|
||||
|
||||
local _url="${RUSTUP_UPDATE_ROOT}/dist/${_arch}/rustup-init${_ext}"
|
||||
|
||||
local _dir
|
||||
if ! _dir="$(ensure mktemp -d)"; then
|
||||
# Because the previous command ran in a subshell, we must manually
|
||||
# propagate exit status.
|
||||
exit 1
|
||||
fi
|
||||
local _file="${_dir}/rustup-init${_ext}"
|
||||
|
||||
local _ansi_escapes_are_valid=false
|
||||
if [ -t 2 ]; then
|
||||
if [ "${TERM+set}" = 'set' ]; then
|
||||
case "$TERM" in
|
||||
xterm*|rxvt*|urxvt*|linux*|vt*)
|
||||
_ansi_escapes_are_valid=true
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
fi
|
||||
|
||||
# check if we have to use /dev/tty to prompt the user
|
||||
local need_tty=yes
|
||||
for arg in "$@"; do
|
||||
case "$arg" in
|
||||
--help)
|
||||
usage
|
||||
exit 0
|
||||
;;
|
||||
*)
|
||||
OPTIND=1
|
||||
if [ "${arg%%--*}" = "" ]; then
|
||||
# Long option (other than --help);
|
||||
# don't attempt to interpret it.
|
||||
continue
|
||||
fi
|
||||
while getopts :hy sub_arg "$arg"; do
|
||||
case "$sub_arg" in
|
||||
h)
|
||||
usage
|
||||
exit 0
|
||||
;;
|
||||
y)
|
||||
# user wants to skip the prompt --
|
||||
# we don't need /dev/tty
|
||||
need_tty=no
|
||||
;;
|
||||
*)
|
||||
;;
|
||||
esac
|
||||
done
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
if $_ansi_escapes_are_valid; then
|
||||
printf "\33[1minfo:\33[0m downloading installer\n" 1>&2
|
||||
else
|
||||
printf '%s\n' 'info: downloading installer' 1>&2
|
||||
fi
|
||||
|
||||
ensure mkdir -p "$_dir"
|
||||
ensure downloader "$_url" "$_file" "$_arch"
|
||||
ensure chmod u+x "$_file"
|
||||
if [ ! -x "$_file" ]; then
|
||||
printf '%s\n' "Cannot execute $_file (likely because of mounting /tmp as noexec)." 1>&2
|
||||
printf '%s\n' "Please copy the file to a location where you can execute binaries and run ./rustup-init${_ext}." 1>&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
if [ "$need_tty" = "yes" ] && [ ! -t 0 ]; then
|
||||
# The installer is going to want to ask for confirmation by
|
||||
# reading stdin. This script was piped into `sh` though and
|
||||
# doesn't have stdin to pass to its children. Instead we're going
|
||||
# to explicitly connect /dev/tty to the installer's stdin.
|
||||
if [ ! -t 1 ]; then
|
||||
err "Unable to run interactively. Run with -y to accept defaults, --help for additional options"
|
||||
fi
|
||||
|
||||
ignore "$_file" "$@" < /dev/tty
|
||||
else
|
||||
ignore "$_file" "$@"
|
||||
fi
|
||||
|
||||
local _retval=$?
|
||||
|
||||
ignore rm "$_file"
|
||||
ignore rmdir "$_dir"
|
||||
|
||||
return "$_retval"
|
||||
}
|
||||
|
||||
check_proc() {
|
||||
# Check for /proc by looking for the /proc/self/exe link
|
||||
# This is only run on Linux
|
||||
if ! test -L /proc/self/exe ; then
|
||||
err "fatal: Unable to find /proc/self/exe. Is /proc mounted? Installation cannot proceed without /proc."
|
||||
fi
|
||||
}
|
||||
|
||||
get_bitness() {
|
||||
need_cmd head
|
||||
# Architecture detection without dependencies beyond coreutils.
|
||||
# ELF files start out "\x7fELF", and the following byte is
|
||||
# 0x01 for 32-bit and
|
||||
# 0x02 for 64-bit.
|
||||
# The printf builtin on some shells like dash only supports octal
|
||||
# escape sequences, so we use those.
|
||||
local _current_exe_head
|
||||
_current_exe_head=$(head -c 5 /proc/self/exe )
|
||||
if [ "$_current_exe_head" = "$(printf '\177ELF\001')" ]; then
|
||||
echo 32
|
||||
elif [ "$_current_exe_head" = "$(printf '\177ELF\002')" ]; then
|
||||
echo 64
|
||||
else
|
||||
err "unknown platform bitness"
|
||||
fi
|
||||
}
|
||||
|
||||
is_host_amd64_elf() {
|
||||
need_cmd head
|
||||
need_cmd tail
|
||||
# ELF e_machine detection without dependencies beyond coreutils.
|
||||
# Two-byte field at offset 0x12 indicates the CPU,
|
||||
# but we're interested in it being 0x3E to indicate amd64, or not that.
|
||||
local _current_exe_machine
|
||||
_current_exe_machine=$(head -c 19 /proc/self/exe | tail -c 1)
|
||||
[ "$_current_exe_machine" = "$(printf '\076')" ]
|
||||
}
|
||||
|
||||
get_endianness() {
|
||||
local cputype=$1
|
||||
local suffix_eb=$2
|
||||
local suffix_el=$3
|
||||
|
||||
# detect endianness without od/hexdump, like get_bitness() does.
|
||||
need_cmd head
|
||||
need_cmd tail
|
||||
|
||||
local _current_exe_endianness
|
||||
_current_exe_endianness="$(head -c 6 /proc/self/exe | tail -c 1)"
|
||||
if [ "$_current_exe_endianness" = "$(printf '\001')" ]; then
|
||||
echo "${cputype}${suffix_el}"
|
||||
elif [ "$_current_exe_endianness" = "$(printf '\002')" ]; then
|
||||
echo "${cputype}${suffix_eb}"
|
||||
else
|
||||
err "unknown platform endianness"
|
||||
fi
|
||||
}
|
||||
|
||||
# Detect the Linux/LoongArch UAPI flavor, with all errors being non-fatal.
|
||||
# Returns 0 or 234 in case of successful detection, 1 otherwise (/tmp being
|
||||
# noexec, or other causes).
|
||||
check_loongarch_uapi() {
|
||||
need_cmd base64
|
||||
|
||||
local _tmp
|
||||
if ! _tmp="$(ensure mktemp)"; then
|
||||
return 1
|
||||
fi
|
||||
|
||||
# Minimal Linux/LoongArch UAPI detection, exiting with 0 in case of
|
||||
# upstream ("new world") UAPI, and 234 (-EINVAL truncated) in case of
|
||||
# old-world (as deployed on several early commercial Linux distributions
|
||||
# for LoongArch).
|
||||
#
|
||||
# See https://gist.github.com/xen0n/5ee04aaa6cecc5c7794b9a0c3b65fc7f for
|
||||
# source to this helper binary.
|
||||
ignore base64 -d > "$_tmp" <<EOF
|
||||
f0VMRgIBAQAAAAAAAAAAAAIAAgEBAAAAeAAgAAAAAABAAAAAAAAAAAAAAAAAAAAAQQAAAEAAOAAB
|
||||
AAAAAAAAAAEAAAAFAAAAAAAAAAAAAAAAACAAAAAAAAAAIAAAAAAAJAAAAAAAAAAkAAAAAAAAAAAA
|
||||
AQAAAAAABCiAAwUAFQAGABUAByCAAwsYggMAACsAC3iBAwAAKwAxen0n
|
||||
EOF
|
||||
|
||||
ignore chmod u+x "$_tmp"
|
||||
if [ ! -x "$_tmp" ]; then
|
||||
ignore rm "$_tmp"
|
||||
return 1
|
||||
fi
|
||||
|
||||
"$_tmp"
|
||||
local _retval=$?
|
||||
|
||||
ignore rm "$_tmp"
|
||||
return "$_retval"
|
||||
}
|
||||
|
||||
ensure_loongarch_uapi() {
|
||||
check_loongarch_uapi
|
||||
case $? in
|
||||
0)
|
||||
return 0
|
||||
;;
|
||||
234)
|
||||
echo >&2
|
||||
echo 'Your Linux kernel does not provide the ABI required by this Rust' >&2
|
||||
echo 'distribution. Please check with your OS provider for how to obtain a' >&2
|
||||
echo 'compatible Rust package for your system.' >&2
|
||||
echo >&2
|
||||
exit 1
|
||||
;;
|
||||
*)
|
||||
echo "Warning: Cannot determine current system's ABI flavor, continuing anyway." >&2
|
||||
echo >&2
|
||||
echo 'Note that the official Rust distribution only works with the upstream' >&2
|
||||
echo 'kernel ABI. Installation will fail if your running kernel happens to be' >&2
|
||||
echo 'incompatible.' >&2
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
get_architecture() {
|
||||
local _ostype _cputype _bitness _arch _clibtype
|
||||
_ostype="$(uname -s)"
|
||||
_cputype="$(uname -m)"
|
||||
_clibtype="gnu"
|
||||
|
||||
if [ "$_ostype" = Linux ]; then
|
||||
if [ "$(uname -o)" = Android ]; then
|
||||
_ostype=Android
|
||||
fi
|
||||
if ldd --version 2>&1 | grep -q 'musl'; then
|
||||
_clibtype="musl"
|
||||
fi
|
||||
fi
|
||||
|
||||
if [ "$_ostype" = Darwin ]; then
|
||||
# Darwin `uname -m` can lie due to Rosetta shenanigans. If you manage to
|
||||
# invoke a native shell binary and then a native uname binary, you can
|
||||
# get the real answer, but that's hard to ensure, so instead we use
|
||||
# `sysctl` (which doesn't lie) to check for the actual architecture.
|
||||
if [ "$_cputype" = i386 ]; then
|
||||
# Handling i386 compatibility mode in older macOS versions (<10.15)
|
||||
# running on x86_64-based Macs.
|
||||
# Starting from 10.15, macOS explicitly bans all i386 binaries from running.
|
||||
# See: <https://support.apple.com/en-us/HT208436>
|
||||
|
||||
# Avoid `sysctl: unknown oid` stderr output and/or non-zero exit code.
|
||||
if sysctl hw.optional.x86_64 2> /dev/null || true | grep -q ': 1'; then
|
||||
_cputype=x86_64
|
||||
fi
|
||||
elif [ "$_cputype" = x86_64 ]; then
|
||||
# Handling x86-64 compatibility mode (a.k.a. Rosetta 2)
|
||||
# in newer macOS versions (>=11) running on arm64-based Macs.
|
||||
# Rosetta 2 is built exclusively for x86-64 and cannot run i386 binaries.
|
||||
|
||||
# Avoid `sysctl: unknown oid` stderr output and/or non-zero exit code.
|
||||
if sysctl hw.optional.arm64 2> /dev/null || true | grep -q ': 1'; then
|
||||
_cputype=arm64
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
|
||||
if [ "$_ostype" = SunOS ]; then
|
||||
# Both Solaris and illumos presently announce as "SunOS" in "uname -s"
|
||||
# so use "uname -o" to disambiguate. We use the full path to the
|
||||
# system uname in case the user has coreutils uname first in PATH,
|
||||
# which has historically sometimes printed the wrong value here.
|
||||
if [ "$(/usr/bin/uname -o)" = illumos ]; then
|
||||
_ostype=illumos
|
||||
fi
|
||||
|
||||
# illumos systems have multi-arch userlands, and "uname -m" reports the
|
||||
# machine hardware name; e.g., "i86pc" on both 32- and 64-bit x86
|
||||
# systems. Check for the native (widest) instruction set on the
|
||||
# running kernel:
|
||||
if [ "$_cputype" = i86pc ]; then
|
||||
_cputype="$(isainfo -n)"
|
||||
fi
|
||||
fi
|
||||
|
||||
case "$_ostype" in
|
||||
|
||||
Android)
|
||||
_ostype=linux-android
|
||||
;;
|
||||
|
||||
Linux)
|
||||
check_proc
|
||||
_ostype=unknown-linux-$_clibtype
|
||||
_bitness=$(get_bitness)
|
||||
;;
|
||||
|
||||
FreeBSD)
|
||||
_ostype=unknown-freebsd
|
||||
;;
|
||||
|
||||
NetBSD)
|
||||
_ostype=unknown-netbsd
|
||||
;;
|
||||
|
||||
DragonFly)
|
||||
_ostype=unknown-dragonfly
|
||||
;;
|
||||
|
||||
Darwin)
|
||||
_ostype=apple-darwin
|
||||
;;
|
||||
|
||||
illumos)
|
||||
_ostype=unknown-illumos
|
||||
;;
|
||||
|
||||
MINGW* | MSYS* | CYGWIN* | Windows_NT)
|
||||
_ostype=pc-windows-gnu
|
||||
;;
|
||||
|
||||
*)
|
||||
err "unrecognized OS type: $_ostype"
|
||||
;;
|
||||
|
||||
esac
|
||||
|
||||
case "$_cputype" in
|
||||
|
||||
i386 | i486 | i686 | i786 | x86)
|
||||
_cputype=i686
|
||||
;;
|
||||
|
||||
xscale | arm)
|
||||
_cputype=arm
|
||||
if [ "$_ostype" = "linux-android" ]; then
|
||||
_ostype=linux-androideabi
|
||||
fi
|
||||
;;
|
||||
|
||||
armv6l)
|
||||
_cputype=arm
|
||||
if [ "$_ostype" = "linux-android" ]; then
|
||||
_ostype=linux-androideabi
|
||||
else
|
||||
_ostype="${_ostype}eabihf"
|
||||
fi
|
||||
;;
|
||||
|
||||
armv7l | armv8l)
|
||||
_cputype=armv7
|
||||
if [ "$_ostype" = "linux-android" ]; then
|
||||
_ostype=linux-androideabi
|
||||
else
|
||||
_ostype="${_ostype}eabihf"
|
||||
fi
|
||||
;;
|
||||
|
||||
aarch64 | arm64)
|
||||
_cputype=aarch64
|
||||
;;
|
||||
|
||||
x86_64 | x86-64 | x64 | amd64)
|
||||
_cputype=x86_64
|
||||
;;
|
||||
|
||||
mips)
|
||||
_cputype=$(get_endianness mips '' el)
|
||||
;;
|
||||
|
||||
mips64)
|
||||
if [ "$_bitness" -eq 64 ]; then
|
||||
# only n64 ABI is supported for now
|
||||
_ostype="${_ostype}abi64"
|
||||
_cputype=$(get_endianness mips64 '' el)
|
||||
fi
|
||||
;;
|
||||
|
||||
ppc)
|
||||
_cputype=powerpc
|
||||
;;
|
||||
|
||||
ppc64)
|
||||
_cputype=powerpc64
|
||||
;;
|
||||
|
||||
ppc64le)
|
||||
_cputype=powerpc64le
|
||||
;;
|
||||
|
||||
s390x)
|
||||
_cputype=s390x
|
||||
;;
|
||||
riscv64)
|
||||
_cputype=riscv64gc
|
||||
;;
|
||||
loongarch64)
|
||||
_cputype=loongarch64
|
||||
ensure_loongarch_uapi
|
||||
;;
|
||||
*)
|
||||
err "unknown CPU type: $_cputype"
|
||||
|
||||
esac
|
||||
|
||||
# Detect 64-bit linux with 32-bit userland
|
||||
if [ "${_ostype}" = unknown-linux-gnu ] && [ "${_bitness}" -eq 32 ]; then
|
||||
case $_cputype in
|
||||
x86_64)
|
||||
if [ -n "${RUSTUP_CPUTYPE:-}" ]; then
|
||||
_cputype="$RUSTUP_CPUTYPE"
|
||||
else {
|
||||
# 32-bit executable for amd64 = x32
|
||||
if is_host_amd64_elf; then {
|
||||
echo "This host is running an x32 userland; as it stands, x32 support is poor," 1>&2
|
||||
echo "and there isn't a native toolchain -- you will have to install" 1>&2
|
||||
echo "multiarch compatibility with i686 and/or amd64, then select one" 1>&2
|
||||
echo "by re-running this script with the RUSTUP_CPUTYPE environment variable" 1>&2
|
||||
echo "set to i686 or x86_64, respectively." 1>&2
|
||||
echo 1>&2
|
||||
echo "You will be able to add an x32 target after installation by running" 1>&2
|
||||
echo " rustup target add x86_64-unknown-linux-gnux32" 1>&2
|
||||
exit 1
|
||||
}; else
|
||||
_cputype=i686
|
||||
fi
|
||||
}; fi
|
||||
;;
|
||||
mips64)
|
||||
_cputype=$(get_endianness mips '' el)
|
||||
;;
|
||||
powerpc64)
|
||||
_cputype=powerpc
|
||||
;;
|
||||
aarch64)
|
||||
_cputype=armv7
|
||||
if [ "$_ostype" = "linux-android" ]; then
|
||||
_ostype=linux-androideabi
|
||||
else
|
||||
_ostype="${_ostype}eabihf"
|
||||
fi
|
||||
;;
|
||||
riscv64gc)
|
||||
err "riscv64 with 32-bit userland unsupported"
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
|
||||
# Detect armv7 but without the CPU features Rust needs in that build,
|
||||
# and fall back to arm.
|
||||
# See https://github.com/rust-lang/rustup.rs/issues/587.
|
||||
if [ "$_ostype" = "unknown-linux-gnueabihf" ] && [ "$_cputype" = armv7 ]; then
|
||||
if ensure grep '^Features' /proc/cpuinfo | grep -E -q -v 'neon|simd'; then
|
||||
# At least one processor does not have NEON (which is asimd on armv8+).
|
||||
_cputype=arm
|
||||
fi
|
||||
fi
|
||||
|
||||
_arch="${_cputype}-${_ostype}"
|
||||
|
||||
RETVAL="$_arch"
|
||||
}
|
||||
|
||||
say() {
|
||||
printf 'rustup: %s\n' "$1"
|
||||
}
|
||||
|
||||
err() {
|
||||
say "$1" >&2
|
||||
exit 1
|
||||
}
|
||||
|
||||
need_cmd() {
|
||||
if ! check_cmd "$1"; then
|
||||
err "need '$1' (command not found)"
|
||||
fi
|
||||
}
|
||||
|
||||
check_cmd() {
|
||||
command -v "$1" > /dev/null 2>&1
|
||||
}
|
||||
|
||||
assert_nz() {
|
||||
if [ -z "$1" ]; then err "assert_nz $2"; fi
|
||||
}
|
||||
|
||||
# Run a command that should never fail. If the command fails execution
|
||||
# will immediately terminate with an error showing the failing
|
||||
# command.
|
||||
ensure() {
|
||||
if ! "$@"; then err "command failed: $*"; fi
|
||||
}
|
||||
|
||||
# This is just for indicating that commands' results are being
|
||||
# intentionally ignored. Usually, because it's being executed
|
||||
# as part of error handling.
|
||||
ignore() {
|
||||
"$@"
|
||||
}
|
||||
|
||||
# This wraps curl or wget. Try curl first, if not installed,
|
||||
# use wget instead.
|
||||
downloader() {
|
||||
# zsh does not split words by default, Required for curl retry arguments below.
|
||||
is_zsh && setopt local_options shwordsplit
|
||||
|
||||
local _dld
|
||||
local _ciphersuites
|
||||
local _err
|
||||
local _status
|
||||
local _retry
|
||||
if check_cmd curl; then
|
||||
_dld=curl
|
||||
elif check_cmd wget; then
|
||||
_dld=wget
|
||||
else
|
||||
_dld='curl or wget' # to be used in error message of need_cmd
|
||||
fi
|
||||
|
||||
if [ "$1" = --check ]; then
|
||||
need_cmd "$_dld"
|
||||
elif [ "$_dld" = curl ]; then
|
||||
check_curl_for_retry_support
|
||||
_retry="$RETVAL"
|
||||
get_ciphersuites_for_curl
|
||||
_ciphersuites="$RETVAL"
|
||||
if [ -n "$_ciphersuites" ]; then
|
||||
_err=$(curl $_retry --proto '=https' --tlsv1.2 --ciphers "$_ciphersuites" --silent --show-error --fail --location "$1" --output "$2" 2>&1)
|
||||
_status=$?
|
||||
else
|
||||
echo "Warning: Not enforcing strong cipher suites for TLS, this is potentially less secure"
|
||||
if ! check_help_for "$3" curl --proto --tlsv1.2; then
|
||||
echo "Warning: Not enforcing TLS v1.2, this is potentially less secure"
|
||||
_err=$(curl $_retry --silent --show-error --fail --location "$1" --output "$2" 2>&1)
|
||||
_status=$?
|
||||
else
|
||||
_err=$(curl $_retry --proto '=https' --tlsv1.2 --silent --show-error --fail --location "$1" --output "$2" 2>&1)
|
||||
_status=$?
|
||||
fi
|
||||
fi
|
||||
if [ -n "$_err" ]; then
|
||||
echo "$_err" >&2
|
||||
if echo "$_err" | grep -q 404$; then
|
||||
err "installer for platform '$3' not found, this may be unsupported"
|
||||
fi
|
||||
fi
|
||||
return $_status
|
||||
elif [ "$_dld" = wget ]; then
|
||||
if [ "$(wget -V 2>&1|head -2|tail -1|cut -f1 -d" ")" = "BusyBox" ]; then
|
||||
echo "Warning: using the BusyBox version of wget. Not enforcing strong cipher suites for TLS or TLS v1.2, this is potentially less secure"
|
||||
_err=$(wget "$1" -O "$2" 2>&1)
|
||||
_status=$?
|
||||
else
|
||||
get_ciphersuites_for_wget
|
||||
_ciphersuites="$RETVAL"
|
||||
if [ -n "$_ciphersuites" ]; then
|
||||
_err=$(wget --https-only --secure-protocol=TLSv1_2 --ciphers "$_ciphersuites" "$1" -O "$2" 2>&1)
|
||||
_status=$?
|
||||
else
|
||||
echo "Warning: Not enforcing strong cipher suites for TLS, this is potentially less secure"
|
||||
if ! check_help_for "$3" wget --https-only --secure-protocol; then
|
||||
echo "Warning: Not enforcing TLS v1.2, this is potentially less secure"
|
||||
_err=$(wget "$1" -O "$2" 2>&1)
|
||||
_status=$?
|
||||
else
|
||||
_err=$(wget --https-only --secure-protocol=TLSv1_2 "$1" -O "$2" 2>&1)
|
||||
_status=$?
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
if [ -n "$_err" ]; then
|
||||
echo "$_err" >&2
|
||||
if echo "$_err" | grep -q ' 404 Not Found$'; then
|
||||
err "installer for platform '$3' not found, this may be unsupported"
|
||||
fi
|
||||
fi
|
||||
return $_status
|
||||
else
|
||||
err "Unknown downloader" # should not reach here
|
||||
fi
|
||||
}
|
||||
|
||||
check_help_for() {
|
||||
local _arch
|
||||
local _cmd
|
||||
local _arg
|
||||
_arch="$1"
|
||||
shift
|
||||
_cmd="$1"
|
||||
shift
|
||||
|
||||
local _category
|
||||
if "$_cmd" --help | grep -q 'For all options use the manual or "--help all".'; then
|
||||
_category="all"
|
||||
else
|
||||
_category=""
|
||||
fi
|
||||
|
||||
case "$_arch" in
|
||||
|
||||
*darwin*)
|
||||
if check_cmd sw_vers; then
|
||||
case $(sw_vers -productVersion) in
|
||||
10.*)
|
||||
# If we're running on macOS, older than 10.13, then we always
|
||||
# fail to find these options to force fallback
|
||||
if [ "$(sw_vers -productVersion | cut -d. -f2)" -lt 13 ]; then
|
||||
# Older than 10.13
|
||||
echo "Warning: Detected macOS platform older than 10.13"
|
||||
return 1
|
||||
fi
|
||||
;;
|
||||
11.*)
|
||||
# We assume Big Sur will be OK for now
|
||||
;;
|
||||
*)
|
||||
# Unknown product version, warn and continue
|
||||
echo "Warning: Detected unknown macOS major version: $(sw_vers -productVersion)"
|
||||
echo "Warning TLS capabilities detection may fail"
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
;;
|
||||
|
||||
esac
|
||||
|
||||
for _arg in "$@"; do
|
||||
if ! "$_cmd" --help "$_category" | grep -q -- "$_arg"; then
|
||||
return 1
|
||||
fi
|
||||
done
|
||||
|
||||
true # not strictly needed
|
||||
}
|
||||
|
||||
# Check if curl supports the --retry flag, then pass it to the curl invocation.
|
||||
check_curl_for_retry_support() {
|
||||
local _retry_supported=""
|
||||
# "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
|
||||
if check_help_for "notspecified" "curl" "--retry"; then
|
||||
_retry_supported="--retry 3"
|
||||
if check_help_for "notspecified" "curl" "--continue-at"; then
|
||||
# "-C -" tells curl to automatically find where to resume the download when retrying.
|
||||
_retry_supported="--retry 3 -C -"
|
||||
fi
|
||||
fi
|
||||
|
||||
RETVAL="$_retry_supported"
|
||||
}
|
||||
|
||||
# Return cipher suite string specified by user, otherwise return strong TLS 1.2-1.3 cipher suites
|
||||
# if support by local tools is detected. Detection currently supports these curl backends:
|
||||
# GnuTLS and OpenSSL (possibly also LibreSSL and BoringSSL). Return value can be empty.
|
||||
get_ciphersuites_for_curl() {
|
||||
if [ -n "${RUSTUP_TLS_CIPHERSUITES-}" ]; then
|
||||
# user specified custom cipher suites, assume they know what they're doing
|
||||
RETVAL="$RUSTUP_TLS_CIPHERSUITES"
|
||||
return
|
||||
fi
|
||||
|
||||
local _openssl_syntax="no"
|
||||
local _gnutls_syntax="no"
|
||||
local _backend_supported="yes"
|
||||
if curl -V | grep -q ' OpenSSL/'; then
|
||||
_openssl_syntax="yes"
|
||||
elif curl -V | grep -iq ' LibreSSL/'; then
|
||||
_openssl_syntax="yes"
|
||||
elif curl -V | grep -iq ' BoringSSL/'; then
|
||||
_openssl_syntax="yes"
|
||||
elif curl -V | grep -iq ' GnuTLS/'; then
|
||||
_gnutls_syntax="yes"
|
||||
else
|
||||
_backend_supported="no"
|
||||
fi
|
||||
|
||||
local _args_supported="no"
|
||||
if [ "$_backend_supported" = "yes" ]; then
|
||||
# "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
|
||||
if check_help_for "notspecified" "curl" "--tlsv1.2" "--ciphers" "--proto"; then
|
||||
_args_supported="yes"
|
||||
fi
|
||||
fi
|
||||
|
||||
local _cs=""
|
||||
if [ "$_args_supported" = "yes" ]; then
|
||||
if [ "$_openssl_syntax" = "yes" ]; then
|
||||
_cs=$(get_strong_ciphersuites_for "openssl")
|
||||
elif [ "$_gnutls_syntax" = "yes" ]; then
|
||||
_cs=$(get_strong_ciphersuites_for "gnutls")
|
||||
fi
|
||||
fi
|
||||
|
||||
RETVAL="$_cs"
|
||||
}
|
||||
|
||||
# Return cipher suite string specified by user, otherwise return strong TLS 1.2-1.3 cipher suites
|
||||
# if support by local tools is detected. Detection currently supports these wget backends:
|
||||
# GnuTLS and OpenSSL (possibly also LibreSSL and BoringSSL). Return value can be empty.
|
||||
get_ciphersuites_for_wget() {
|
||||
if [ -n "${RUSTUP_TLS_CIPHERSUITES-}" ]; then
|
||||
# user specified custom cipher suites, assume they know what they're doing
|
||||
RETVAL="$RUSTUP_TLS_CIPHERSUITES"
|
||||
return
|
||||
fi
|
||||
|
||||
local _cs=""
|
||||
if wget -V | grep -q '\-DHAVE_LIBSSL'; then
|
||||
# "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
|
||||
if check_help_for "notspecified" "wget" "TLSv1_2" "--ciphers" "--https-only" "--secure-protocol"; then
|
||||
_cs=$(get_strong_ciphersuites_for "openssl")
|
||||
fi
|
||||
elif wget -V | grep -q '\-DHAVE_LIBGNUTLS'; then
|
||||
# "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
|
||||
if check_help_for "notspecified" "wget" "TLSv1_2" "--ciphers" "--https-only" "--secure-protocol"; then
|
||||
_cs=$(get_strong_ciphersuites_for "gnutls")
|
||||
fi
|
||||
fi
|
||||
|
||||
RETVAL="$_cs"
|
||||
}
|
||||
|
||||
# Return strong TLS 1.2-1.3 cipher suites in OpenSSL or GnuTLS syntax. TLS 1.2
|
||||
# excludes non-ECDHE and non-AEAD cipher suites. DHE is excluded due to bad
|
||||
# DH params often found on servers (see RFC 7919). Sequence matches or is
|
||||
# similar to Firefox 68 ESR with weak cipher suites disabled via about:config.
|
||||
# $1 must be openssl or gnutls.
|
||||
get_strong_ciphersuites_for() {
|
||||
if [ "$1" = "openssl" ]; then
|
||||
# OpenSSL is forgiving of unknown values, no problems with TLS 1.3 values on versions that don't support it yet.
|
||||
echo "TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384"
|
||||
elif [ "$1" = "gnutls" ]; then
|
||||
# GnuTLS isn't forgiving of unknown values, so this may require a GnuTLS version that supports TLS 1.3 even if wget doesn't.
|
||||
# Begin with SECURE128 (and higher) then remove/add to build cipher suites. Produces same 9 cipher suites as OpenSSL but in slightly different order.
|
||||
echo "SECURE128:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1:-VERS-DTLS-ALL:-CIPHER-ALL:-MAC-ALL:-KX-ALL:+AEAD:+ECDHE-ECDSA:+ECDHE-RSA:+AES-128-GCM:+CHACHA20-POLY1305:+AES-256-GCM"
|
||||
fi
|
||||
}
|
||||
|
||||
main "$@" || exit 1
|
||||
35
node/build.sh
Executable file
35
node/build.sh
Executable file
@ -0,0 +1,35 @@
|
||||
#!/bin/bash
|
||||
set -euxo pipefail
|
||||
|
||||
# This script builds the node binary for the current platform and statically links it with VDF static lib.
|
||||
|
||||
ROOT_DIR="${ROOT_DIR:-$( cd "$(dirname "$(realpath "$( dirname "${BASH_SOURCE[0]}" )")")" >/dev/null 2>&1 && pwd )}"
|
||||
|
||||
NODE_DIR="$ROOT_DIR/node"
|
||||
BINARIES_DIR="$ROOT_DIR/target/release"
|
||||
|
||||
pushd "$NODE_DIR" > /dev/null
|
||||
|
||||
export CGO_ENABLED=1
|
||||
export GOEXPERIMENT=arenas
|
||||
|
||||
os_type="$(uname)"
|
||||
case "$os_type" in
|
||||
"Darwin")
|
||||
# Check if the architecture is ARM
|
||||
if [[ "$(uname -m)" == "arm64" ]]; then
|
||||
# MacOS ld doesn't support -Bstatic and -Bdynamic, so it's important that there is only a static version of the library
|
||||
go build -ldflags "-linkmode 'external' -extldflags '-L$BINARIES_DIR -lvdf -ldl -lm'" "$@"
|
||||
else
|
||||
echo "Unsupported platform"
|
||||
exit 1
|
||||
fi
|
||||
;;
|
||||
"Linux")
|
||||
go build -ldflags "-linkmode 'external' -extldflags '-L$BINARIES_DIR -Wl,-Bstatic -lvdf -Wl,-Bdynamic -ldl -lm'" "$@"
|
||||
;;
|
||||
*)
|
||||
echo "Unsupported platform"
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
@ -13,11 +13,11 @@ import (
|
||||
"github.com/pkg/errors"
|
||||
"go.uber.org/zap"
|
||||
"golang.org/x/crypto/sha3"
|
||||
"source.quilibrium.com/quilibrium/monorepo/nekryptology/pkg/vdf"
|
||||
"source.quilibrium.com/quilibrium/monorepo/node/config"
|
||||
"source.quilibrium.com/quilibrium/monorepo/node/keys"
|
||||
"source.quilibrium.com/quilibrium/monorepo/node/protobufs"
|
||||
"source.quilibrium.com/quilibrium/monorepo/node/tries"
|
||||
"source.quilibrium.com/quilibrium/monorepo/vdf"
|
||||
)
|
||||
|
||||
type WesolowskiFrameProver struct {
|
||||
@ -42,9 +42,7 @@ func (w *WesolowskiFrameProver) ProveMasterClockFrame(
|
||||
input = append(input, previousFrame.Output[:]...)
|
||||
|
||||
b := sha3.Sum256(input)
|
||||
v := vdf.New(difficulty, b)
|
||||
v.Execute()
|
||||
o := v.GetOutput()
|
||||
o := vdf.WesolowskiSolve(b, difficulty)
|
||||
|
||||
previousSelectorBytes := [516]byte{}
|
||||
copy(previousSelectorBytes[:], previousFrame.Output[:516])
|
||||
@ -113,11 +111,10 @@ func (w *WesolowskiFrameProver) VerifyMasterClockFrame(
|
||||
}
|
||||
|
||||
b := sha3.Sum256(input)
|
||||
v := vdf.New(frame.Difficulty, b)
|
||||
proof := [516]byte{}
|
||||
copy(proof[:], frame.Output)
|
||||
|
||||
if !v.Verify(proof) {
|
||||
if !vdf.WesolowskiVerify(b, frame.Difficulty, proof) {
|
||||
w.logger.Error("invalid proof",
|
||||
zap.Binary("filter", frame.Filter),
|
||||
zap.Uint64("frame_number", frame.FrameNumber),
|
||||
@ -159,10 +156,7 @@ func (w *WesolowskiFrameProver) CreateMasterGenesisFrame(
|
||||
error,
|
||||
) {
|
||||
b := sha3.Sum256(seed)
|
||||
v := vdf.New(difficulty, b)
|
||||
|
||||
v.Execute()
|
||||
o := v.GetOutput()
|
||||
o := vdf.WesolowskiSolve(b, difficulty)
|
||||
inputMessage := o[:]
|
||||
|
||||
w.logger.Debug("proving genesis frame")
|
||||
@ -178,10 +172,7 @@ func (w *WesolowskiFrameProver) CreateMasterGenesisFrame(
|
||||
}
|
||||
|
||||
b = sha3.Sum256(input)
|
||||
v = vdf.New(difficulty, b)
|
||||
|
||||
v.Execute()
|
||||
o = v.GetOutput()
|
||||
o = vdf.WesolowskiSolve(b, difficulty)
|
||||
|
||||
frame := &protobufs.ClockFrame{
|
||||
Filter: filter,
|
||||
@ -248,10 +239,7 @@ func (w *WesolowskiFrameProver) ProveDataClockFrame(
|
||||
input = append(input, commitmentInput...)
|
||||
|
||||
b := sha3.Sum256(input)
|
||||
v := vdf.New(difficulty, b)
|
||||
|
||||
v.Execute()
|
||||
o := v.GetOutput()
|
||||
o := vdf.WesolowskiSolve(b, difficulty)
|
||||
|
||||
// TODO: make this configurable for signing algorithms that allow
|
||||
// user-supplied hash functions
|
||||
@ -341,10 +329,7 @@ func (w *WesolowskiFrameProver) CreateDataGenesisFrame(
|
||||
}
|
||||
|
||||
b := sha3.Sum256(input)
|
||||
v := vdf.New(difficulty, b)
|
||||
|
||||
v.Execute()
|
||||
o := v.GetOutput()
|
||||
o := vdf.WesolowskiSolve(b, difficulty)
|
||||
|
||||
commitments := []*protobufs.InclusionCommitment{}
|
||||
for i, commit := range inclusionProof.InclusionCommitments {
|
||||
@ -438,7 +423,6 @@ func (w *WesolowskiFrameProver) VerifyDataClockFrame(
|
||||
}
|
||||
|
||||
b := sha3.Sum256(input)
|
||||
v := vdf.New(frame.Difficulty, b)
|
||||
proof := [516]byte{}
|
||||
copy(proof[:], frame.Output)
|
||||
|
||||
@ -458,7 +442,7 @@ func (w *WesolowskiFrameProver) VerifyDataClockFrame(
|
||||
)
|
||||
}
|
||||
}
|
||||
if !v.Verify(proof) {
|
||||
if !vdf.WesolowskiVerify(b, frame.Difficulty, proof) {
|
||||
return errors.Wrap(
|
||||
errors.New("invalid proof"),
|
||||
"verify clock frame",
|
||||
@ -585,11 +569,10 @@ func (w *WesolowskiFrameProver) VerifyWeakRecursiveProof(
|
||||
}
|
||||
|
||||
b := sha3.Sum256(input[:len(input)-516])
|
||||
v := vdf.New(difficulty, b)
|
||||
output := [516]byte{}
|
||||
copy(output[:], input[len(input)-516:])
|
||||
|
||||
if v.Verify(output) {
|
||||
if vdf.WesolowskiVerify(b, difficulty, output) {
|
||||
w.logger.Debug("verification succeeded")
|
||||
return true
|
||||
} else {
|
||||
@ -613,10 +596,7 @@ func (w *WesolowskiFrameProver) CalculateChallengeProof(
|
||||
instanceInput := binary.BigEndian.AppendUint32([]byte{}, core)
|
||||
instanceInput = append(instanceInput, input...)
|
||||
b := sha3.Sum256(instanceInput)
|
||||
v := vdf.New(uint32(calibratedDifficulty), b)
|
||||
|
||||
v.Execute()
|
||||
o := v.GetOutput()
|
||||
o := vdf.WesolowskiSolve(b, uint32(calibratedDifficulty))
|
||||
|
||||
output := make([]byte, 516)
|
||||
copy(output[:], o[:])
|
||||
@ -653,15 +633,13 @@ func (w *WesolowskiFrameProver) VerifyChallengeProof(
|
||||
skew := (assertedDifficulty * 12) / 10
|
||||
calibratedDifficulty := (int64(proofDuration) * 10000) / skew
|
||||
|
||||
v := vdf.New(uint32(calibratedDifficulty), b)
|
||||
check := v.Verify([516]byte(proof[i]))
|
||||
check := vdf.WesolowskiVerify(b, uint32(calibratedDifficulty), [516]byte(proof[i]))
|
||||
if !check {
|
||||
// TODO: Remove after 2024-05-28
|
||||
if time.Now().Before(config.GetMinimumVersionCutoff()) {
|
||||
calibratedDifficulty = (int64(proofDuration) / skew) * 10000
|
||||
|
||||
v = vdf.New(uint32(calibratedDifficulty), sha3.Sum256(input))
|
||||
check = v.Verify([516]byte(proof[i]))
|
||||
check = vdf.WesolowskiVerify(sha3.Sum256(input), uint32(calibratedDifficulty), [516]byte(proof[i]))
|
||||
if !check {
|
||||
return false
|
||||
}
|
||||
|
||||
21
node/go.mod
21
node/go.mod
@ -5,6 +5,8 @@ go 1.20
|
||||
// A necessary hack until source.quilibrium.com is open to all
|
||||
replace source.quilibrium.com/quilibrium/monorepo/nekryptology => ../nekryptology
|
||||
|
||||
replace source.quilibrium.com/quilibrium/monorepo/vdf => ../vdf
|
||||
|
||||
replace github.com/libp2p/go-libp2p => ../go-libp2p
|
||||
|
||||
replace github.com/libp2p/go-libp2p-gostream => ../go-libp2p-gostream
|
||||
@ -23,6 +25,7 @@ require (
|
||||
gopkg.in/yaml.v2 v2.4.0
|
||||
source.quilibrium.com/quilibrium/monorepo/go-libp2p-blossomsub v0.0.0-00010101000000-000000000000
|
||||
source.quilibrium.com/quilibrium/monorepo/nekryptology v0.0.0-00010101000000-000000000000
|
||||
source.quilibrium.com/quilibrium/monorepo/vdf v0.0.0-00010101000000-000000000000
|
||||
)
|
||||
|
||||
require (
|
||||
@ -64,7 +67,7 @@ require (
|
||||
github.com/quic-go/qtls-go1-19 v0.3.3 // indirect
|
||||
github.com/quic-go/qtls-go1-20 v0.2.3 // indirect
|
||||
github.com/rivo/uniseg v0.2.0 // indirect
|
||||
golang.org/x/term v0.16.0
|
||||
golang.org/x/term v0.21.0
|
||||
google.golang.org/genproto/googleapis/api v0.0.0-20230822172742-b8732ec3820d // indirect
|
||||
google.golang.org/genproto/googleapis/rpc v0.0.0-20230822172742-b8732ec3820d // indirect
|
||||
gopkg.in/yaml.v3 v3.0.1 // indirect
|
||||
@ -144,7 +147,7 @@ require (
|
||||
github.com/onsi/ginkgo/v2 v2.11.0 // indirect
|
||||
github.com/opencontainers/runtime-spec v1.1.0 // indirect
|
||||
github.com/opentracing/opentracing-go v1.2.0 // indirect
|
||||
github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58 // indirect
|
||||
github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58
|
||||
github.com/pkg/errors v0.9.1
|
||||
github.com/polydawn/refmt v0.89.0 // indirect
|
||||
github.com/prometheus/client_golang v1.16.0 // indirect
|
||||
@ -164,14 +167,14 @@ require (
|
||||
go.uber.org/fx v1.20.0 // indirect
|
||||
go.uber.org/multierr v1.11.0 // indirect
|
||||
go.uber.org/zap v1.26.0
|
||||
golang.org/x/crypto v0.18.0
|
||||
golang.org/x/crypto v0.24.0
|
||||
golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63 // indirect
|
||||
golang.org/x/mod v0.12.0 // indirect
|
||||
golang.org/x/net v0.20.0 // indirect
|
||||
golang.org/x/sync v0.6.0
|
||||
golang.org/x/sys v0.16.0 // indirect
|
||||
golang.org/x/text v0.14.0 // indirect
|
||||
golang.org/x/tools v0.12.1-0.20230815132531-74c255bcf846 // indirect
|
||||
golang.org/x/mod v0.17.0 // indirect
|
||||
golang.org/x/net v0.25.0 // indirect
|
||||
golang.org/x/sync v0.7.0
|
||||
golang.org/x/sys v0.21.0
|
||||
golang.org/x/text v0.16.0 // indirect
|
||||
golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d // indirect
|
||||
gonum.org/v1/gonum v0.11.0 // indirect
|
||||
google.golang.org/grpc v1.58.2
|
||||
lukechampine.com/blake3 v1.2.1 // indirect
|
||||
|
||||
23
node/go.sum
23
node/go.sum
@ -111,6 +111,7 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
|
||||
github.com/gliderlabs/ssh v0.1.1/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
|
||||
github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
|
||||
github.com/go-errors/errors v1.4.2 h1:J6MZopCL4uSllY1OfXM374weqZFFItUbrImctkmUxIA=
|
||||
github.com/go-logfmt/logfmt v0.5.1/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
|
||||
github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
|
||||
github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ=
|
||||
github.com/go-logr/logr v1.2.4/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
|
||||
@ -161,6 +162,7 @@ github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
|
||||
github.com/google/go-cmp v0.5.3/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
|
||||
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
|
||||
github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
|
||||
github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
|
||||
github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+umXrS52loVEgC2AApnigrVQ=
|
||||
github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
|
||||
github.com/google/gopacket v1.1.19 h1:ves8RnFZPGiFnTS0uPQStjwru6uO6h+nlr9j6fL7kF8=
|
||||
@ -229,11 +231,14 @@ github.com/jbenet/goprocess v0.1.4/go.mod h1:5yspPrukOVuOLORacaBi858NqyClJPQxYZl
|
||||
github.com/jellevandenhooff/dkim v0.0.0-20150330215556-f50fe3d243e1/go.mod h1:E0B/fFc00Y+Rasa88328GlI/XbtyysCtTHZS8h7IrBU=
|
||||
github.com/jessevdk/go-flags v0.0.0-20141203071132-1679536dcc89/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
|
||||
github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
|
||||
github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
|
||||
github.com/jrick/logrotate v1.0.0/go.mod h1:LNinyqDIJnpAur+b8yyulnQw/wDuN1+BYKlTRt3OuAQ=
|
||||
github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
|
||||
github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
|
||||
github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
|
||||
github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
|
||||
github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
|
||||
github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
|
||||
github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
|
||||
github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
|
||||
github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
|
||||
@ -315,6 +320,7 @@ github.com/minio/sha256-simd v1.0.1 h1:6kaan5IFmwTNynnKKpDHe6FWHohJOHhCPchzK49dz
|
||||
github.com/minio/sha256-simd v1.0.1/go.mod h1:Pz6AKMiUdngCLpeTL/RJY1M9rUuPMYujV5xJjtbRSN8=
|
||||
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
|
||||
github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
|
||||
github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
|
||||
github.com/mr-tron/base58 v1.1.2/go.mod h1:BinMc/sQntlIE1frQmRFPUoPA1Zkr8VRgBdjWI2mNwc=
|
||||
github.com/mr-tron/base58 v1.1.3/go.mod h1:BinMc/sQntlIE1frQmRFPUoPA1Zkr8VRgBdjWI2mNwc=
|
||||
github.com/mr-tron/base58 v1.2.0 h1:T/HDJBh4ZCPbU39/+c3rRvE0uKBQlU27+QI8LJ4t64o=
|
||||
@ -353,6 +359,7 @@ github.com/multiformats/go-varint v0.0.1/go.mod h1:3Ls8CIEsrijN6+B7PbrXRPxHRPuXS
|
||||
github.com/multiformats/go-varint v0.0.5/go.mod h1:3Ls8CIEsrijN6+B7PbrXRPxHRPuXSrVKRY101jdMZYE=
|
||||
github.com/multiformats/go-varint v0.0.7 h1:sWSGR+f/eu5ABZA2ZpYKBILXTTs9JWpdEM/nEGOHFS8=
|
||||
github.com/multiformats/go-varint v0.0.7/go.mod h1:r8PUYw/fD/SjBCiKOoDlGF6QawOELpZAu9eioSos/OU=
|
||||
github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
|
||||
github.com/neelance/astrewrite v0.0.0-20160511093645-99348263ae86/go.mod h1:kHJEU3ofeGjhHklVoIGuVj85JJwZ6kWPaJwCIxgnFmo=
|
||||
github.com/neelance/sourcemap v0.0.0-20151028013722-8c68805598ab/go.mod h1:Qr6/a/Q4r9LP1IltGz7tA7iOK1WonHEYhu1HRBA7ZiM=
|
||||
github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
|
||||
@ -512,6 +519,8 @@ golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPh
|
||||
golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
|
||||
golang.org/x/crypto v0.18.0 h1:PGVlW0xEltQnzFZ55hkuX5+KLyrMYhHld1YHO4AKcdc=
|
||||
golang.org/x/crypto v0.18.0/go.mod h1:R0j02AL6hcrfOiy9T4ZYp/rcWeMxM3L6QYxlOuEG1mg=
|
||||
golang.org/x/crypto v0.24.0 h1:mnl8DM0o513X8fdIkmyFE/5hTYxbwYOjDS/+rK6qpRI=
|
||||
golang.org/x/crypto v0.24.0/go.mod h1:Z1PMYSOR5nyMcyAVAIQSKCDwalqy85Aqn1x3Ws4L5DM=
|
||||
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
|
||||
golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63 h1:m64FZMko/V45gv0bNmrNYoDEq8U5YUhetc9cBWKS1TQ=
|
||||
golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63/go.mod h1:0v4NqG35kSWCMzLaMeX+IQrlSnVE/bqGSyC2cz/9Le8=
|
||||
@ -528,6 +537,8 @@ golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
|
||||
golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
|
||||
golang.org/x/mod v0.12.0 h1:rmsUpXtvNzj340zd98LZ4KntptpfRHwpFOHG188oHXc=
|
||||
golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
|
||||
golang.org/x/mod v0.17.0 h1:zY54UmvipHiNd+pm+m0x9KhZ9hl1/7QNMyxXbc6ICqA=
|
||||
golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
|
||||
golang.org/x/net v0.0.0-20180719180050-a680a1efc54d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
|
||||
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
|
||||
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
|
||||
@ -548,6 +559,8 @@ golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v
|
||||
golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
|
||||
golang.org/x/net v0.20.0 h1:aCL9BSgETF1k+blQaYUBx9hJ9LOGP3gAVemcZlf1Kpo=
|
||||
golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
|
||||
golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac=
|
||||
golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
|
||||
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
|
||||
golang.org/x/oauth2 v0.0.0-20181017192945-9dcd33a902f4/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
|
||||
golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
|
||||
@ -563,6 +576,8 @@ golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJ
|
||||
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.6.0 h1:5BMeUDZ7vkXGfEr1x9B4bRcTH4lpkTkpdh0T/J+qjbQ=
|
||||
golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
|
||||
golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
|
||||
golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
|
||||
golang.org/x/sys v0.0.0-20180810173357-98c5dad5d1a0/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
@ -585,14 +600,20 @@ golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
|
||||
golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
|
||||
golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
|
||||
golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
|
||||
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
|
||||
golang.org/x/term v0.16.0 h1:m+B6fahuftsE9qjo0VWp2FW0mB3MTJvR0BaMQrq0pmE=
|
||||
golang.org/x/term v0.16.0/go.mod h1:yn7UURbUtPyrVJPGPq404EukNFxcm/foM+bV/bfcDsY=
|
||||
golang.org/x/term v0.21.0 h1:WVXCp+/EBEHOj53Rvu+7KiT/iElMrO8ACK16SMZ3jaA=
|
||||
golang.org/x/term v0.21.0/go.mod h1:ooXLefLobQVslOqselCNF4SxFAaoS6KujMbsGzSDmX0=
|
||||
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||
golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
||||
golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
|
||||
golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
|
||||
golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=
|
||||
golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI=
|
||||
golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
|
||||
golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
|
||||
golang.org/x/tools v0.0.0-20180828015842-6cd1fcedba52/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
||||
@ -616,6 +637,8 @@ golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
|
||||
golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
|
||||
golang.org/x/tools v0.12.1-0.20230815132531-74c255bcf846 h1:Vve/L0v7CXXuxUmaMGIEK/dEeq7uiqb5qBgQrZzIE7E=
|
||||
golang.org/x/tools v0.12.1-0.20230815132531-74c255bcf846/go.mod h1:Sc0INKfu04TlqNoRA1hgpFZbhYXHPr4V5DzpSBTPqQM=
|
||||
golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d h1:vU5i/LfpvrRCpgM/VPfJLg5KjxD3E+hfT1SH+d9zLwg=
|
||||
golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
|
||||
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
|
||||
17
node/test.sh
Executable file
17
node/test.sh
Executable file
@ -0,0 +1,17 @@
|
||||
#!/bin/bash
|
||||
set -euxo pipefail
|
||||
|
||||
# Run tests for the node package. Takes care of linking the native VDF.
|
||||
# Assumes that the VDF library has been built by running the generate.sh script in the `../vdf` directory.
|
||||
|
||||
ROOT_DIR="${ROOT_DIR:-$( cd "$(dirname "$(realpath "$( dirname "${BASH_SOURCE[0]}" )")")" >/dev/null 2>&1 && pwd )}"
|
||||
|
||||
NODE_DIR="$ROOT_DIR/node"
|
||||
BINARIES_DIR="$ROOT_DIR/target/release"
|
||||
|
||||
# Link the native VDF and execute tests
|
||||
pushd "$NODE_DIR" > /dev/null
|
||||
CGO_LDFLAGS="-L$BINARIES_DIR -lvdf -ldl" \
|
||||
CGO_ENABLED=1 \
|
||||
GOEXPERIMENT=arenas \
|
||||
go test "$@"
|
||||
1
vdf/.gitignore
vendored
Normal file
1
vdf/.gitignore
vendored
Normal file
@ -0,0 +1 @@
|
||||
generated
|
||||
9
vdf/REAMDE.md
Normal file
9
vdf/REAMDE.md
Normal file
@ -0,0 +1,9 @@
|
||||
# VDF
|
||||
|
||||
Wrapper for the Rust implementation of the VDF (Verifiable Delay Function) in [crates/vdf](../crates/vdf).
|
||||
|
||||
## Generate Go bindings
|
||||
|
||||
```sh
|
||||
go generate
|
||||
```
|
||||
14
vdf/generate.sh
Executable file
14
vdf/generate.sh
Executable file
@ -0,0 +1,14 @@
|
||||
#!/bin/bash
|
||||
set -euxo pipefail
|
||||
|
||||
ROOT_DIR="${ROOT_DIR:-$( cd "$(dirname "$(realpath "$( dirname "${BASH_SOURCE[0]}" )")")" >/dev/null 2>&1 && pwd )}"
|
||||
|
||||
RUST_VDF_PACKAGE="$ROOT_DIR/crates/vdf"
|
||||
BINDINGS_DIR="$ROOT_DIR/vdf"
|
||||
|
||||
# Build the Rust VDF package in release mode
|
||||
RUSTFLAGS='-L /opt/homebrew/Cellar/gmp/6.3.0/lib' cargo build -p vdf --release
|
||||
|
||||
# Generate Go bindings
|
||||
pushd "$RUST_VDF_PACKAGE" > /dev/null
|
||||
uniffi-bindgen-go src/lib.udl -o "$BINDINGS_DIR"/generated
|
||||
12
vdf/go.mod
Normal file
12
vdf/go.mod
Normal file
@ -0,0 +1,12 @@
|
||||
module source.quilibrium.com/quilibrium/monorepo/vdf
|
||||
|
||||
go 1.20
|
||||
|
||||
// A necessary hack until source.quilibrium.com is open to all
|
||||
replace source.quilibrium.com/quilibrium/monorepo/nekryptology => ../nekryptology
|
||||
|
||||
require (
|
||||
golang.org/x/crypto v0.24.0 // indirect
|
||||
golang.org/x/sys v0.21.0 // indirect
|
||||
source.quilibrium.com/quilibrium/monorepo/nekryptology v0.0.0-00010101000000-000000000000 // indirect
|
||||
)
|
||||
4
vdf/go.sum
Normal file
4
vdf/go.sum
Normal file
@ -0,0 +1,4 @@
|
||||
golang.org/x/crypto v0.24.0 h1:mnl8DM0o513X8fdIkmyFE/5hTYxbwYOjDS/+rK6qpRI=
|
||||
golang.org/x/crypto v0.24.0/go.mod h1:Z1PMYSOR5nyMcyAVAIQSKCDwalqy85Aqn1x3Ws4L5DM=
|
||||
golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
|
||||
golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
|
||||
17
vdf/test.sh
Executable file
17
vdf/test.sh
Executable file
@ -0,0 +1,17 @@
|
||||
#!/bin/bash
|
||||
set -euxo pipefail
|
||||
|
||||
# Run tests for the vdf package. Takes care of linking the native VDF.
|
||||
# Assumes that the VDF library has been built by running the generate.sh script in the same directory.
|
||||
|
||||
ROOT_DIR="${ROOT_DIR:-$( cd "$(dirname "$(realpath "$( dirname "${BASH_SOURCE[0]}" )")")" >/dev/null 2>&1 && pwd )}"
|
||||
|
||||
NODE_DIR="$ROOT_DIR/vdf"
|
||||
BINARIES_DIR="$ROOT_DIR/target/release"
|
||||
|
||||
# Link the native VDF and execute tests
|
||||
pushd "$NODE_DIR" > /dev/null
|
||||
CGO_LDFLAGS="-L$BINARIES_DIR -lvdf -ldl" \
|
||||
CGO_ENABLED=1 \
|
||||
GOEXPERIMENT=arenas \
|
||||
go test "$@"
|
||||
21
vdf/vdf.go
Normal file
21
vdf/vdf.go
Normal file
@ -0,0 +1,21 @@
|
||||
package vdf
|
||||
|
||||
import (
|
||||
generated "source.quilibrium.com/quilibrium/monorepo/vdf/generated/vdf"
|
||||
)
|
||||
|
||||
//go:generate ./generate.sh
|
||||
|
||||
const intSizeBits = uint16(2048)
|
||||
|
||||
// WesolowskiSolve Solve and prove with the Wesolowski VDF using the given parameters.
|
||||
// Outputs the concatenated solution and proof (in this order).
|
||||
func WesolowskiSolve(challenge [32]byte, difficulty uint32) [516]byte {
|
||||
return [516]byte(generated.WesolowskiSolve(intSizeBits, challenge[:], difficulty))
|
||||
}
|
||||
|
||||
// WesolowskiVerify Verify with the Wesolowski VDF using the given parameters.
|
||||
// `allegedSolution` is the output of `WesolowskiSolve`.
|
||||
func WesolowskiVerify(challenge [32]byte, difficulty uint32, allegedSolution [516]byte) bool {
|
||||
return generated.WesolowskiVerify(intSizeBits, challenge[:], difficulty, allegedSolution[:])
|
||||
}
|
||||
53
vdf/vdf_test.go
Normal file
53
vdf/vdf_test.go
Normal file
@ -0,0 +1,53 @@
|
||||
package vdf_test
|
||||
|
||||
import (
|
||||
"golang.org/x/crypto/sha3"
|
||||
nekrovdf "source.quilibrium.com/quilibrium/monorepo/nekryptology/pkg/vdf"
|
||||
"source.quilibrium.com/quilibrium/monorepo/vdf"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func getChallenge(seed string) [32]byte {
|
||||
return sha3.Sum256([]byte(seed))
|
||||
}
|
||||
|
||||
func TestProveVerify(t *testing.T) {
|
||||
difficulty := uint32(10000)
|
||||
challenge := getChallenge("TestProveVerify")
|
||||
solution := vdf.WesolowskiSolve(challenge, difficulty)
|
||||
isOk := vdf.WesolowskiVerify(challenge, difficulty, solution)
|
||||
if !isOk {
|
||||
t.Fatalf("Verification failed")
|
||||
}
|
||||
}
|
||||
|
||||
func TestProveRustVerifyNekro(t *testing.T) {
|
||||
difficulty := uint32(100)
|
||||
challenge := getChallenge("TestProveRustVerifyNekro")
|
||||
|
||||
for i := 0; i < 100; i++ {
|
||||
solution := vdf.WesolowskiSolve(challenge, difficulty)
|
||||
nekroVdf := nekrovdf.New(difficulty, challenge)
|
||||
isOk := nekroVdf.Verify(solution)
|
||||
if !isOk {
|
||||
t.Fatalf("Verification failed")
|
||||
}
|
||||
challenge = sha3.Sum256(solution[:])
|
||||
}
|
||||
}
|
||||
|
||||
func TestProveNekroVerifyRust(t *testing.T) {
|
||||
difficulty := uint32(100)
|
||||
challenge := getChallenge("TestProveNekroVerifyRust")
|
||||
|
||||
for i := 0; i < 100; i++ {
|
||||
nekroVdf := nekrovdf.New(difficulty, challenge)
|
||||
nekroVdf.Execute()
|
||||
proof := nekroVdf.GetOutput()
|
||||
isOk := vdf.WesolowskiVerify(challenge, difficulty, proof)
|
||||
if !isOk {
|
||||
t.Fatalf("Verification failed")
|
||||
}
|
||||
challenge = sha3.Sum256(proof[:])
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user