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add travis

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arnaucube
2019-06-03 20:37:03 +02:00
committed by arnaucube
parent b14d5447a8
commit df33a4bbd5
4 changed files with 40 additions and 19 deletions
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30
bls/bls.go
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@@ -92,26 +92,24 @@ func (bls BLS) AggregateSignatures(signatures ...[3][2]*big.Int) [3][2]*big.Int
// VerifyAggregatedSignatures
// ê(G,S) == ê(P, H(m))
// ê(G, s0+s1+s2...) == ê(p0, H(m)) x ê(p1, H(m)) x ê(p2, H(m)) ...
// ê(G, s0+s1+s2...) == ê(p0+p1+p2..., H(m))
func (bls BLS) VerifyAggregatedSignatures(aggrsig [3][2]*big.Int, pubKArray [][3]*big.Int, m []byte) bool {
pairingGS, err := bls.Bn.Pairing(bls.Bn.G1.G, aggrsig)
if err != nil {
return false
}
pairingsMul, err := bls.Bn.Pairing(pubKArray[0], bls.Hash(m))
if err != nil {
return false
}
aggrPubKs := pubKArray[0]
for i := 1; i < len(pubKArray); i++ {
e, err := bls.Bn.Pairing(pubKArray[i], bls.Hash(m))
if err != nil {
return false
}
pairingsMul = bls.Bn.Fq12.Mul(pairingsMul, e)
aggrPubKs = bls.Bn.G1.Add(aggrPubKs, pubKArray[i])
}
if !bls.Bn.Fq12.Equal(pairingGS, pairingsMul) {
left, err := bls.Bn.Pairing(bls.Bn.G1.G, aggrsig)
if err != nil {
return false
}
right, err := bls.Bn.Pairing(aggrPubKs, bls.Hash(m))
if err != nil {
return false
}
if !bls.Bn.Fq12.Equal(left, right) {
return false
}
return true