mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-11-11 02:35:18 +00:00
99 lines
2.9 KiB
Go
99 lines
2.9 KiB
Go
//
|
|
// Copyright Coinbase, Inc. All Rights Reserved.
|
|
//
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
//
|
|
|
|
package bbs
|
|
|
|
import (
|
|
crand "crypto/rand"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
|
|
"source.quilibrium.com/quilibrium/monorepo/nekryptology/pkg/core/curves"
|
|
)
|
|
|
|
func TestBlindSignatureContext(t *testing.T) {
|
|
curve := curves.BLS12381(&curves.PointBls12381G2{})
|
|
pk, sk, err := NewKeys(curve)
|
|
require.NoError(t, err)
|
|
require.NotNil(t, pk)
|
|
require.NotNil(t, sk)
|
|
|
|
generators, err := new(MessageGenerators).Init(pk, 4)
|
|
require.NoError(t, err)
|
|
nonce := curve.Scalar.Random(crand.Reader)
|
|
msgs := make(map[int]curves.Scalar, 1)
|
|
msgs[0] = curve.Scalar.Hash([]byte("identifier"))
|
|
|
|
ctx, blinding, err := NewBlindSignatureContext(curve, msgs, generators, nonce, crand.Reader)
|
|
require.NoError(t, err)
|
|
require.NotNil(t, blinding)
|
|
require.False(t, blinding.IsZero())
|
|
require.NotNil(t, ctx)
|
|
require.False(t, ctx.commitment.IsIdentity())
|
|
require.False(t, ctx.challenge.IsZero())
|
|
for _, p := range ctx.proofs {
|
|
require.False(t, p.IsZero())
|
|
}
|
|
|
|
delete(msgs, 0)
|
|
msgs[1] = curve.Scalar.Hash([]byte("firstname"))
|
|
msgs[2] = curve.Scalar.Hash([]byte("lastname"))
|
|
msgs[3] = curve.Scalar.Hash([]byte("age"))
|
|
blindSig, err := ctx.ToBlindSignature(msgs, sk, generators, nonce)
|
|
require.NoError(t, err)
|
|
require.NotNil(t, blindSig)
|
|
require.False(t, blindSig.a.IsIdentity())
|
|
require.False(t, blindSig.e.IsZero())
|
|
require.False(t, blindSig.s.IsZero())
|
|
sig := blindSig.ToUnblinded(blinding)
|
|
msgs[0] = curve.Scalar.Hash([]byte("identifier"))
|
|
var sigMsgs [4]curves.Scalar
|
|
for i := 0; i < 4; i++ {
|
|
sigMsgs[i] = msgs[i]
|
|
}
|
|
err = pk.Verify(sig, generators, sigMsgs[:])
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
func TestBlindSignatureContextMarshalBinary(t *testing.T) {
|
|
curve := curves.BLS12381(&curves.PointBls12381G2{})
|
|
pk, sk, err := NewKeys(curve)
|
|
require.NoError(t, err)
|
|
require.NotNil(t, pk)
|
|
require.NotNil(t, sk)
|
|
|
|
generators, err := new(MessageGenerators).Init(pk, 4)
|
|
require.NoError(t, err)
|
|
nonce := curve.Scalar.Random(crand.Reader)
|
|
msgs := make(map[int]curves.Scalar, 1)
|
|
msgs[0] = curve.Scalar.Hash([]byte("identifier"))
|
|
|
|
ctx, blinding, err := NewBlindSignatureContext(curve, msgs, generators, nonce, crand.Reader)
|
|
require.NoError(t, err)
|
|
require.NotNil(t, blinding)
|
|
require.False(t, blinding.IsZero())
|
|
require.NotNil(t, ctx)
|
|
require.False(t, ctx.commitment.IsIdentity())
|
|
require.False(t, ctx.challenge.IsZero())
|
|
for _, p := range ctx.proofs {
|
|
require.False(t, p.IsZero())
|
|
}
|
|
|
|
data, err := ctx.MarshalBinary()
|
|
require.NoError(t, err)
|
|
require.NotNil(t, data)
|
|
ctx2 := new(BlindSignatureContext).Init(curve)
|
|
err = ctx2.UnmarshalBinary(data)
|
|
require.NoError(t, err)
|
|
require.Equal(t, ctx.challenge.Cmp(ctx2.challenge), 0)
|
|
require.True(t, ctx.commitment.Equal(ctx2.commitment))
|
|
require.Equal(t, len(ctx.proofs), len(ctx2.proofs))
|
|
for i, p := range ctx.proofs {
|
|
require.Equal(t, p.Cmp(ctx2.proofs[i]), 0)
|
|
}
|
|
}
|