add travis

.travis.yml

@@ -0,0 +1,8 @@
+language: go
+
+go:
+  - "1.12"
+
+env:
+  - GO111MODULE=on
+

README.md

@@ -1,4 +1,5 @@
-# cryptofun [![Go Report Card](https://goreportcard.com/badge/github.com/arnaucube/cryptofun)](https://goreportcard.com/report/github.com/arnaucube/cryptofun)
+# cryptofun [![Go Report Card](https://goreportcard.com/badge/github.com/arnaucube/cryptofun)](https://goreportcard.com/report/github.com/arnaucube/cryptofun) [![Build Status](https://travis-ci.org/arnaucube/cryptofun.svg?branch=master)](https://travis-ci.org/arnaucube/cryptofun)
+
 
 Crypto algorithms from scratch. Academic purposes only.
 

bls/bls.go

@@ -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

paillier/paillier_test.go

@@ -24,8 +24,22 @@ func TestEncryptDecrypt(t *testing.T) {
 }
 
 func TestHomomorphicAddition(t *testing.T) {
-	key, err := GenerateKeyPair()
-	assert.Nil(t, err)
+	// key, err := GenerateKeyPair()
+	// assert.Nil(t, err)
+
+	// key harcoded for tests
+	pubK := PublicKey{
+		N: big.NewInt(204223),
+		G: big.NewInt(24929195694),
+	}
+	privK := PrivateKey{
+		Lambda: big.NewInt(101660),
+		Mu:     big.NewInt(117648),
+	}
+	key := Key{
+		PubK:  pubK,
+		PrivK: privK,
+	}
 
 	n1 := big.NewInt(int64(110))
 	n2 := big.NewInt(int64(150))