mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-11-20 15:15:18 +00:00
359 lines
12 KiB
Go
359 lines
12 KiB
Go
package kzg_test
|
|
|
|
import (
|
|
"encoding/hex"
|
|
"encoding/json"
|
|
"fmt"
|
|
"math/big"
|
|
"os"
|
|
"sync"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
"golang.org/x/crypto/sha3"
|
|
"source.quilibrium.com/quilibrium/monorepo/nekryptology/pkg/core/curves"
|
|
"source.quilibrium.com/quilibrium/monorepo/nekryptology/pkg/core/curves/native/bls48581"
|
|
"source.quilibrium.com/quilibrium/monorepo/node/crypto/kzg"
|
|
)
|
|
|
|
func TestMain(m *testing.M) {
|
|
csBytes, err := os.ReadFile("./ceremony.json")
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
cs := &kzg.CeremonyState{}
|
|
if err := json.Unmarshal(csBytes, cs); err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
g1s := make([]curves.PairingPoint, 16)
|
|
g2s := make([]curves.PairingPoint, 2)
|
|
g1ffts := make([]curves.PairingPoint, 16)
|
|
wg := sync.WaitGroup{}
|
|
wg.Add(16)
|
|
|
|
for i := 0; i < 16; i++ {
|
|
i := i
|
|
go func() {
|
|
b, err := hex.DecodeString(cs.PowersOfTau.G1Affines[i][2:])
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
g1, err := curves.BLS48581G1().NewGeneratorPoint().FromAffineCompressed(b)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
g1s[i] = g1.(curves.PairingPoint)
|
|
|
|
f, err := hex.DecodeString(cs.PowersOfTau.G1FFT[i][2:])
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
g1fft, err := curves.BLS48581G1().NewGeneratorPoint().FromAffineCompressed(f)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
g1ffts[i] = g1fft.(curves.PairingPoint)
|
|
|
|
if i < 2 {
|
|
b, err := hex.DecodeString(cs.PowersOfTau.G2Affines[i][2:])
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
g2, err := curves.BLS48581G2().NewGeneratorPoint().FromAffineCompressed(
|
|
b,
|
|
)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
g2s[i] = g2.(curves.PairingPoint)
|
|
}
|
|
wg.Done()
|
|
}()
|
|
}
|
|
|
|
wg.Wait()
|
|
|
|
kzg.CeremonyBLS48581G1 = g1s
|
|
kzg.CeremonyBLS48581G2 = g2s
|
|
|
|
// Post-ceremony, precompute everything and put it in the finalized ceremony
|
|
// state
|
|
modulus := make([]byte, 73)
|
|
bls48581.NewBIGints(bls48581.CURVE_Order).ToBytes(modulus)
|
|
q := new(big.Int).SetBytes(modulus)
|
|
sizes := []int64{16}
|
|
|
|
wg.Add(len(sizes))
|
|
root := make([]curves.PairingScalar, 1)
|
|
roots := make([][]curves.PairingScalar, 1)
|
|
reverseRoots := make([][]curves.PairingScalar, 1)
|
|
ffts := make([][]curves.PairingPoint, 1)
|
|
|
|
for idx, i := range sizes {
|
|
i := i
|
|
idx := idx
|
|
go func() {
|
|
exp := new(big.Int).Quo(
|
|
new(big.Int).Sub(q, big.NewInt(1)),
|
|
big.NewInt(i),
|
|
)
|
|
rootOfUnity := new(big.Int).Exp(big.NewInt(int64(37)), exp, q)
|
|
roots[idx] = make([]curves.PairingScalar, i+1)
|
|
reverseRoots[idx] = make([]curves.PairingScalar, i+1)
|
|
wg2 := sync.WaitGroup{}
|
|
wg2.Add(int(i))
|
|
for j := int64(0); j < i; j++ {
|
|
j := j
|
|
go func() {
|
|
rev := big.NewInt(int64(j))
|
|
r := new(big.Int).Exp(
|
|
rootOfUnity,
|
|
rev,
|
|
q,
|
|
)
|
|
scalar, _ := (&curves.ScalarBls48581{}).SetBigInt(r)
|
|
|
|
if rev.Cmp(big.NewInt(1)) == 0 {
|
|
root[idx] = scalar.(curves.PairingScalar)
|
|
}
|
|
|
|
roots[idx][j] = scalar.(curves.PairingScalar)
|
|
reverseRoots[idx][i-j] = roots[idx][j]
|
|
wg2.Done()
|
|
}()
|
|
}
|
|
wg2.Wait()
|
|
roots[idx][i] = roots[idx][0]
|
|
reverseRoots[idx][0] = reverseRoots[idx][i]
|
|
wg.Done()
|
|
}()
|
|
}
|
|
wg.Wait()
|
|
|
|
wg.Add(len(sizes))
|
|
for i := range root {
|
|
i := i
|
|
kzg.RootOfUnityBLS48581[uint64(sizes[i])] = root[i]
|
|
kzg.RootsOfUnityBLS48581[uint64(sizes[i])] = roots[i]
|
|
kzg.ReverseRootsOfUnityBLS48581[uint64(sizes[i])] = reverseRoots[i]
|
|
|
|
go func() {
|
|
// We precomputed 65536, others are cheap and will be fully precomputed
|
|
// post-ceremony
|
|
if sizes[i] < 65536 {
|
|
fftG1, err := kzg.FFTG1(
|
|
kzg.CeremonyBLS48581G1[:sizes[i]],
|
|
*curves.BLS48581(
|
|
curves.BLS48581G1().NewGeneratorPoint(),
|
|
),
|
|
uint64(sizes[i]),
|
|
true,
|
|
)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
ffts[i] = fftG1
|
|
} else {
|
|
ffts[i] = g1ffts
|
|
}
|
|
wg.Done()
|
|
}()
|
|
}
|
|
wg.Wait()
|
|
|
|
for i := range root {
|
|
kzg.FFTBLS48581[uint64(sizes[i])] = ffts[i]
|
|
}
|
|
code := m.Run()
|
|
os.Exit(code)
|
|
}
|
|
|
|
func TestKzgBytesToPoly(t *testing.T) {
|
|
modulus := make([]byte, 73)
|
|
bls48581.NewBIGints(bls48581.CURVE_Order).ToBytes(modulus)
|
|
q := new(big.Int).SetBytes(modulus)
|
|
p := kzg.NewKZGProver(curves.BLS48581(curves.BLS48581G1().Point), sha3.New256, q)
|
|
|
|
poly, err := p.BytesToPolynomial([]byte(
|
|
"Did you ever hear the tragedy of Darth Plagueis The Wise? I thought not." +
|
|
" It's not a story the Jedi would tell you. It's a Sith legend. Darth " +
|
|
"Plagueis was a Dark Lord of the Sith, so powerful and so wise he could " +
|
|
"use the Force to influence the midichlorians to create life… He had such" +
|
|
" a knowledge of the dark side that he could even keep the ones he cared " +
|
|
"about from dying. The dark side of the Force is a pathway to many " +
|
|
"abilities some consider to be unnatural. He became so powerful… the only" +
|
|
" thing he was afraid of was losing his power, which eventually, of " +
|
|
"course, he did. Unfortunately, he taught his apprentice everything he " +
|
|
"knew, then his apprentice killed him in his sleep. Ironic. He could " +
|
|
"save others from death, but not himself."))
|
|
require.NoError(t, err)
|
|
|
|
t1, _ := hex.DecodeString("00000000000000000044696420796f7520657665722068656172207468652074726167656479206f6620446172746820506c6167756569732054686520576973653f20492074686f75")
|
|
t2, _ := hex.DecodeString("000000000000000000676874206e6f742e2049742773206e6f7420612073746f727920746865204a65646920776f756c642074656c6c20796f752e204974277320612053697468206c")
|
|
t3, _ := hex.DecodeString("0000000000000000006567656e642e20446172746820506c616775656973207761732061204461726b204c6f7264206f662074686520536974682c20736f20706f77657266756c2061")
|
|
t4, _ := hex.DecodeString("0000000000000000006e6420736f207769736520686520636f756c64207573652074686520466f72636520746f20696e666c75656e636520746865206d69646963686c6f7269616e73")
|
|
t5, _ := hex.DecodeString("00000000000000000020746f20637265617465206c696665e280a62048652068616420737563682061206b6e6f776c65646765206f6620746865206461726b20736964652074686174")
|
|
t6, _ := hex.DecodeString("00000000000000000020686520636f756c64206576656e206b65657020746865206f6e65732068652063617265642061626f75742066726f6d206479696e672e20546865206461726b")
|
|
t7, _ := hex.DecodeString("0000000000000000002073696465206f662074686520466f7263652069732061207061746877617920746f206d616e79206162696c697469657320736f6d6520636f6e736964657220")
|
|
t8, _ := hex.DecodeString("000000000000000000746f20626520756e6e61747572616c2e20486520626563616d6520736f20706f77657266756ce280a620746865206f6e6c79207468696e672068652077617320")
|
|
t9, _ := hex.DecodeString("000000000000000000616672616964206f6620776173206c6f73696e672068697320706f7765722c207768696368206576656e7475616c6c792c206f6620636f757273652c20686520")
|
|
t10, _ := hex.DecodeString("0000000000000000006469642e20556e666f7274756e6174656c792c20686520746175676874206869732061707072656e746963652065766572797468696e67206865206b6e65772c")
|
|
t11, _ := hex.DecodeString("000000000000000000207468656e206869732061707072656e74696365206b696c6c65642068696d20696e2068697320736c6565702e2049726f6e69632e20486520636f756c642073")
|
|
t12, _ := hex.DecodeString("00000000000000000000000000000000000000000000000000000000000000000000617665206f74686572732066726f6d2064656174682c20627574206e6f742068696d73656c662e")
|
|
target := [][]byte{t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12}
|
|
actual := [][]byte{}
|
|
|
|
for _, p := range poly {
|
|
actual = append(actual, p.Bytes())
|
|
fmt.Println(hex.EncodeToString(p.Bytes()))
|
|
}
|
|
require.Equal(t, target, actual)
|
|
}
|
|
|
|
func TestPolynomialCommitment(t *testing.T) {
|
|
modulus := make([]byte, 73)
|
|
bls48581.NewBIGints(bls48581.CURVE_Order).ToBytes(modulus)
|
|
q := new(big.Int).SetBytes(modulus)
|
|
p := kzg.NewKZGProver(curves.BLS48581(curves.BLS48581G1().Point), sha3.New256, q)
|
|
|
|
poly, err := p.BytesToPolynomial([]byte(
|
|
"Did you ever hear the tragedy of Darth Plagueis The Wise? I thought not." +
|
|
" It's not a story the Jedi would tell you. It's a Sith legend. Darth " +
|
|
"Plagueis was a Dark Lord of the Sith, so powerful and so wise he could " +
|
|
"use the Force to influence the midichlorians to create life… He had such" +
|
|
" a knowledge of the dark side that he could even keep the ones he cared " +
|
|
"about from dying. The dark side of the Force is a pathway to many " +
|
|
"abilities some consider to be unnatural. He became so powerful… the only" +
|
|
" thing he was afraid of was losing his power, which eventually, of " +
|
|
"course, he did. Unfortunately, he taught his apprentice everything he " +
|
|
"knew, then his apprentice killed him in his sleep. Ironic. He could " +
|
|
"save others from death, but not himself."))
|
|
for i := len(poly); i < 16; i++ {
|
|
poly = append(poly, curves.BLS48581G1().NewScalar().(curves.PairingScalar))
|
|
}
|
|
require.NoError(t, err)
|
|
evalPoly, err := kzg.FFT(
|
|
poly,
|
|
*curves.BLS48581(
|
|
curves.BLS48581G1().NewGeneratorPoint(),
|
|
),
|
|
16,
|
|
false,
|
|
)
|
|
require.NoError(t, err)
|
|
|
|
require.NoError(t, err)
|
|
commitByCoeffs, err := p.PointLinearCombination(
|
|
kzg.CeremonyBLS48581G1[:16],
|
|
poly,
|
|
)
|
|
require.NoError(t, err)
|
|
commitByEval, err := p.PointLinearCombination(
|
|
kzg.FFTBLS48581[16],
|
|
evalPoly,
|
|
)
|
|
require.NoError(t, err)
|
|
fmt.Println(commitByCoeffs.ToAffineCompressed())
|
|
fmt.Println(commitByEval.ToAffineCompressed())
|
|
require.True(t, commitByCoeffs.Equal(commitByEval))
|
|
}
|
|
|
|
func TestKZGProof(t *testing.T) {
|
|
modulus := make([]byte, 73)
|
|
bls48581.NewBIGints(bls48581.CURVE_Order).ToBytes(modulus)
|
|
q := new(big.Int).SetBytes(modulus)
|
|
p := kzg.NewKZGProver(curves.BLS48581(curves.BLS48581G1().Point), sha3.New256, q)
|
|
|
|
poly, err := p.BytesToPolynomial([]byte(
|
|
"Did you ever hear the tragedy of Darth Plagueis The Wise? I thought not." +
|
|
" It's not a story the Jedi would tell you. It's a Sith legend. Darth " +
|
|
"Plagueis was a Dark Lord of the Sith, so powerful and so wise he could " +
|
|
"use the Force to influence the midichlorians to create life… He had such" +
|
|
" a knowledge of the dark side that he could even keep the ones he cared " +
|
|
"about from dying. The dark side of the Force is a pathway to many " +
|
|
"abilities some consider to be unnatural. He became so powerful… the only" +
|
|
" thing he was afraid of was losing his power, which eventually, of " +
|
|
"course, he did. Unfortunately, he taught his apprentice everything he " +
|
|
"knew, then his apprentice killed him in his sleep. Ironic. He could " +
|
|
"save others from death, but not himself."))
|
|
require.NoError(t, err)
|
|
for i := len(poly); i < 16; i++ {
|
|
poly = append(poly, curves.BLS48581G1().NewScalar().(curves.PairingScalar))
|
|
}
|
|
|
|
evalPoly, err := kzg.FFT(
|
|
poly,
|
|
*curves.BLS48581(
|
|
curves.BLS48581G1().NewGeneratorPoint(),
|
|
),
|
|
16,
|
|
true,
|
|
)
|
|
require.NoError(t, err)
|
|
|
|
commit, err := p.Commit(poly)
|
|
require.NoError(t, err)
|
|
|
|
z := kzg.RootsOfUnityBLS48581[16][2]
|
|
require.NoError(t, err)
|
|
|
|
checky := evalPoly[len(poly)-1]
|
|
for i := len(evalPoly) - 2; i >= 0; i-- {
|
|
checky = checky.Mul(z).Add(evalPoly[i]).(curves.PairingScalar)
|
|
}
|
|
fmt.Printf("%+x\n", checky.Bytes())
|
|
|
|
divisors := make([]curves.PairingScalar, 2)
|
|
divisors[0] = (&curves.ScalarBls48581{}).Zero().Sub(z).(*curves.ScalarBls48581)
|
|
divisors[1] = (&curves.ScalarBls48581{}).One().(*curves.ScalarBls48581)
|
|
|
|
a := make([]curves.PairingScalar, len(evalPoly))
|
|
for i := 0; i < len(a); i++ {
|
|
a[i] = evalPoly[i].Clone().(*curves.ScalarBls48581)
|
|
}
|
|
|
|
// Adapted from Feist's amortized proofs:
|
|
aPos := len(a) - 1
|
|
bPos := len(divisors) - 1
|
|
diff := aPos - bPos
|
|
out := make([]curves.PairingScalar, diff+1, diff+1)
|
|
for diff >= 0 {
|
|
out[diff] = a[aPos].Div(divisors[bPos]).(*curves.ScalarBls48581)
|
|
for i := bPos; i >= 0; i-- {
|
|
a[diff+i] = a[diff+i].Sub(
|
|
out[diff].Mul(divisors[i]),
|
|
).(*curves.ScalarBls48581)
|
|
}
|
|
aPos -= 1
|
|
diff -= 1
|
|
}
|
|
|
|
proof, err := p.PointLinearCombination(kzg.CeremonyBLS48581G1[:15], out)
|
|
// proof, err := p.Prove(evalPoly, commit, z.(curves.PairingScalar))
|
|
require.NoError(t, err)
|
|
require.True(t, p.Verify(commit, z, checky, proof))
|
|
|
|
commitments, err := p.CommitAggregate(
|
|
[][]curves.PairingScalar{evalPoly},
|
|
)
|
|
require.NoError(t, err)
|
|
proof, commitment, err := p.ProveAggregate(
|
|
[][]curves.PairingScalar{evalPoly},
|
|
commitments,
|
|
)
|
|
require.NoError(t, err)
|
|
|
|
valid, err := p.VerifyAggregateProof(
|
|
[][]curves.PairingScalar{evalPoly},
|
|
commitments,
|
|
commitment,
|
|
proof,
|
|
)
|
|
require.False(t, proof.IsIdentity())
|
|
require.NoError(t, err)
|
|
require.False(t, valid)
|
|
}
|