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Update Poseidon to new circomlib version & https://extgit.iaik.tugraz.at/krypto/hadeshash

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arnaucube
2020-08-18 18:25:00 +02:00
parent 70841d78e7
commit e04ca5764a
5 changed files with 3587 additions and 214 deletions
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4
babyjub/eddsa.go
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@@ -253,7 +253,7 @@ func (k *PrivateKey) SignPoseidon(msg *big.Int) *Signature {
R8 := NewPoint().Mul(r, B8) // R8 = r * 8 * B
A := k.Public().Point()
hmInput := [poseidon.T]*big.Int{R8.X, R8.Y, A.X, A.Y, msg, big.NewInt(int64(0))}
hmInput := []*big.Int{R8.X, R8.Y, A.X, A.Y, msg, big.NewInt(int64(0))}
hm, err := poseidon.Hash(hmInput) // hm = H1(8*R.x, 8*R.y, A.x, A.y, msg)
if err != nil {
panic(err)
@@ -270,7 +270,7 @@ func (k *PrivateKey) SignPoseidon(msg *big.Int) *Signature {
// VerifyPoseidon verifies the signature of a message encoded as a big.Int in Zq
// using blake-512 hash for buffer hashing and Poseidon for big.Int hashing.
func (p *PublicKey) VerifyPoseidon(msg *big.Int, sig *Signature) bool {
hmInput := [poseidon.T]*big.Int{sig.R8.X, sig.R8.Y, p.X, p.Y, msg, big.NewInt(int64(0))}
hmInput := []*big.Int{sig.R8.X, sig.R8.Y, p.X, p.Y, msg, big.NewInt(int64(0))}
hm, err := poseidon.Hash(hmInput) // hm = H1(8*R.x, 8*R.y, A.x, A.y, msg)
if err != nil {
panic(err)