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add babyjub-eddsa Poseidon sign & verify

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This commit is contained in:
arnaucube
2019-08-29 17:52:30 +02:00
parent c4b3b7a09c
commit 0bac1c84ba
3 changed files with 91 additions and 8 deletions
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51
babyjub/eddsa_test.go
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@@ -4,13 +4,12 @@ import (
"crypto/rand"
"encoding/hex"
"fmt"
"math/big"
"testing"
"github.com/iden3/go-iden3-crypto/constants"
"github.com/iden3/go-iden3-crypto/utils"
"github.com/stretchr/testify/assert"
"math/big"
"testing"
)
func genInputs() (*PrivateKey, *big.Int) {
@@ -26,7 +25,7 @@ func genInputs() (*PrivateKey, *big.Int) {
return &k, msg
}
func TestSignVerify1(t *testing.T) {
func TestSignVerifyMimc7(t *testing.T) {
var k PrivateKey
hex.Decode(k[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
msgBuf, err := hex.DecodeString("00010203040506070809")
@@ -70,6 +69,50 @@ func TestSignVerify1(t *testing.T) {
assert.Equal(t, true, ok)
}
func TestSignVerifyPoseidon(t *testing.T) {
var k PrivateKey
hex.Decode(k[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
msgBuf, err := hex.DecodeString("00010203040506070809")
if err != nil {
panic(err)
}
msg := utils.SetBigIntFromLEBytes(new(big.Int), msgBuf)
pk := k.Public()
assert.Equal(t,
"13277427435165878497778222415993513565335242147425444199013288855685581939618",
pk.X.String())
assert.Equal(t,
"13622229784656158136036771217484571176836296686641868549125388198837476602820",
pk.Y.String())
sig := k.SignPoseidon(msg)
assert.Equal(t,
"11384336176656855268977457483345535180380036354188103142384839473266348197733",
sig.R8.X.String())
assert.Equal(t,
"15383486972088797283337779941324724402501462225528836549661220478783371668959",
sig.R8.Y.String())
assert.Equal(t,
"248298168863866362217836334079793350221620631973732197668910946177382043688",
sig.S.String())
ok := pk.VerifyPoseidon(msg, sig)
assert.Equal(t, true, ok)
sigBuf := sig.Compress()
sig2, err := new(Signature).Decompress(sigBuf)
assert.Equal(t, nil, err)
assert.Equal(t, ""+
"dfedb4315d3f2eb4de2d3c510d7a987dcab67089c8ace06308827bf5bcbe02a2"+
"28506bce274aa1b3f7e7c2fd7e4fe09bff8f9aa37a42def7994e98f322888c00",
hex.EncodeToString(sigBuf[:]))
ok = pk.VerifyPoseidon(msg, sig2)
assert.Equal(t, true, ok)
}
func TestCompressDecompress(t *testing.T) {
var k PrivateKey
hex.Decode(k[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))