mirror of
https://github.com/sonr-io/crypto.git
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418 lines
11 KiB
Go
418 lines
11 KiB
Go
//
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// Copyright Coinbase, Inc. All Rights Reserved.
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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package bls_sig
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import (
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"testing"
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"github.com/sonr-io/crypto/core/curves/native/bls12381"
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)
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func generateBasicSignatureG2(sk *SecretKey, msg []byte, t *testing.T) *Signature {
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bls := NewSigBasic()
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sig, err := bls.Sign(sk, msg)
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if err != nil {
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t.Errorf("Basic Sign failed")
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}
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return sig
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}
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func generateBasicAggregateDataG2(t *testing.T) ([]*PublicKey, []*Signature, [][]byte) {
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msgs := make([][]byte, numAggregateG2)
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pks := make([]*PublicKey, numAggregateG2)
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sigs := make([]*Signature, numAggregateG2)
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ikm := make([]byte, 32)
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bls := NewSigBasic()
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for i := 0; i < numAggregateG2; i++ {
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readRand(ikm, t)
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pk, sk, err := bls.KeygenWithSeed(ikm)
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if err != nil {
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t.Errorf("Basic KeyGen failed")
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}
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msg := make([]byte, 20)
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readRand(msg, t)
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sig := generateBasicSignatureG2(sk, msg, t)
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msgs[i] = msg
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sigs[i] = sig
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pks[i] = pk
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}
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return pks, sigs, msgs
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}
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func TestBasicKeyGenG2Works(t *testing.T) {
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ikm := make([]byte, 32)
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readRand(ikm, t)
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bls := NewSigBasic()
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_, _, err := bls.KeygenWithSeed(ikm)
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if err != nil {
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t.Errorf("Basic KeyGen failed")
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}
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}
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func TestBasicKeyGenG2Fail(t *testing.T) {
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ikm := make([]byte, 10)
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readRand(ikm, t)
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bls := NewSigBasic()
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_, _, err := bls.KeygenWithSeed(ikm)
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if err == nil {
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t.Errorf("Basic KeyGen succeeded when it should've failed")
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}
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}
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func TestBasicCustomDstG2(t *testing.T) {
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ikm := make([]byte, 32)
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readRand(ikm, t)
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bls := NewSigBasicWithDst("BLS_SIG_BLS12381G2_XMD:SHA-256_SSWU_RO_NUL_TEST")
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pk, sk, err := bls.KeygenWithSeed(ikm)
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if err != nil {
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t.Errorf("Basic Custom Dst KeyGen failed")
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}
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readRand(ikm, t)
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sig, err := bls.Sign(sk, ikm)
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if err != nil {
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t.Errorf("Basic Custom Dst Sign failed")
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}
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if res, _ := bls.Verify(pk, ikm, sig); !res {
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t.Errorf("Basic Custon Dst verify failed")
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}
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ikm[0] += 1
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if res, _ := bls.Verify(pk, ikm, sig); res {
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t.Errorf("Basic Custom Dst verify succeeded when it should've failed.")
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}
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}
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func TestBasicSigningG2(t *testing.T) {
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ikm := make([]byte, 32)
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readRand(ikm, t)
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bls := NewSigBasic()
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pk, sk, err := bls.KeygenWithSeed(ikm)
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if err != nil {
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t.Errorf("Basic KeyGen failed")
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}
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readRand(ikm, t)
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sig := generateBasicSignatureG2(sk, ikm, t)
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if res, _ := bls.Verify(pk, ikm, sig); !res {
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t.Errorf("Basic verify failed")
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}
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ikm[0] += 1
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if res, _ := bls.Verify(pk, ikm, sig); res {
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t.Errorf("Basic verify succeeded when it should've failed.")
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}
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}
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func TestBasicSigningG2EmptyMessage(t *testing.T) {
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// So basic
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bls := NewSigBasic()
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_, sk, err := bls.Keygen()
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if err != nil {
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t.Errorf("Basic KeyGen failed")
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}
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// Sign an empty message
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_, err = bls.Sign(sk, []byte{})
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if err != nil {
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t.Errorf("Expected signing empty message to succeed: %v", err)
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}
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}
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func TestBasicSigningG2NilMessage(t *testing.T) {
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// So basic
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bls := NewSigBasic()
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_, sk, err := bls.Keygen()
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if err != nil {
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t.Errorf("Basic KeyGen failed")
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}
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// Sign an empty message
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_, err = bls.Sign(sk, nil)
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if err == nil {
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t.Errorf("Expected signing nil message to fail")
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}
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}
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func TestBasicAggregateVerifyG2Works(t *testing.T) {
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pks, sigs, msgs := generateBasicAggregateDataG2(t)
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bls := NewSigBasic()
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if res, _ := bls.AggregateVerify(pks, msgs, sigs); !res {
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t.Errorf("Basic AggregateVerify failed")
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}
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}
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func TestBasicAggregateVerifyG2BadPks(t *testing.T) {
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bls := NewSigBasic()
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pks, sigs, msgs := generateBasicAggregateDataG2(t)
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if res, _ := bls.AggregateVerify(pks, msgs, sigs); !res {
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t.Errorf("Basic AggregateVerify failed")
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}
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pks[0] = pks[1]
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if res, _ := bls.AggregateVerify(pks, msgs, sigs); res {
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t.Errorf("Basic AggregateVerify succeeded when it should've failed")
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}
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// Try a zero key to make sure it doesn't crash
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pkValue := new(bls12381.G1).Identity()
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pks[0] = &PublicKey{value: *pkValue}
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if res, _ := bls.AggregateVerify(pks, msgs, sigs); res {
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t.Errorf("Basic AggregateVerify succeeded with zero byte public key it should've failed")
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}
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// Try with base generator
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pkValue.Generator()
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pks[0] = &PublicKey{value: *pkValue}
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if res, _ := bls.AggregateVerify(pks, msgs, sigs); res {
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t.Errorf(
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"Basic aggregateVerify succeeded with the base generator public key it should've failed",
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)
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}
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}
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func TestBasicAggregateVerifyG2BadSigs(t *testing.T) {
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bls := NewSigBasic()
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pks, sigs, msgs := generateBasicAggregateDataG2(t)
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if res, _ := bls.AggregateVerify(pks, msgs, sigs); !res {
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t.Errorf("Basic aggregateVerify failed")
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}
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sigs[0] = sigs[1]
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if res, _ := bls.AggregateVerify(pks, msgs, sigs); res {
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t.Errorf("Basic aggregateVerify succeeded when it should've failed")
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}
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// Try a zero key to make sure it doesn't crash
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sigValue := new(bls12381.G2).Identity()
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sigs[0] = &Signature{Value: *sigValue}
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if res, _ := bls.AggregateVerify(pks, msgs, sigs); res {
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t.Errorf("Basic aggregateVerify succeeded with zero byte signature it should've failed")
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}
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// Try with base generator
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sigValue.Generator()
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sigs[0] = &Signature{Value: *sigValue}
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if res, _ := bls.AggregateVerify(pks, msgs, sigs); res {
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t.Errorf(
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"Basic aggregateVerify succeeded with the base generator signature it should've failed",
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)
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}
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}
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func TestBasicAggregateVerifyG2BadMsgs(t *testing.T) {
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bls := NewSigBasic()
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pks, sigs, msgs := generateBasicAggregateDataG2(t)
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if res, _ := bls.AggregateVerify(pks, msgs, sigs); !res {
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t.Errorf("Basic aggregateVerify failed")
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}
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msgs[0] = msgs[1]
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if res, _ := bls.AggregateVerify(pks, msgs, sigs); res {
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t.Errorf("Basic aggregateVerify succeeded when it should've failed")
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}
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}
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func TestBasicThresholdKeygenBadInputs(t *testing.T) {
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bls := NewSigBasic()
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_, _, err := bls.ThresholdKeygen(0, 0)
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if err == nil {
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t.Errorf("ThresholdKeygen should've failed but succeeded")
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}
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_, _, err = bls.ThresholdKeygen(1, 0)
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if err == nil {
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t.Errorf("ThresholdKeygen should've failed but succeeded")
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}
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_, _, err = bls.ThresholdKeygen(3, 2)
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if err == nil {
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t.Errorf("ThresholdKeygen should've failed but succeeded")
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}
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}
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func TestBasicThresholdKeygen(t *testing.T) {
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bls := NewSigBasic()
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_, sks, err := bls.ThresholdKeygen(3, 5)
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if err != nil {
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t.Errorf("ThresholdKeygen failed")
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}
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if len(sks) != 5 {
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t.Errorf("ThresholdKeygen did not produce enough shares")
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}
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}
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func TestBasicPartialSign(t *testing.T) {
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ikm := make([]byte, 32)
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bls := NewSigBasic()
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pk, sks, err := bls.ThresholdKeygenWithSeed(ikm, 2, 4)
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if err != nil {
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t.Errorf("ThresholdKeygen failed")
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}
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msg := make([]byte, 10)
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sig1, err := bls.PartialSign(sks[0], msg)
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if err != nil {
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t.Errorf("partialSign failed: %v", err)
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}
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sig2, err := bls.PartialSign(sks[1], msg)
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if err != nil {
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t.Errorf("partialSign failed: %v", err)
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}
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sig, err := bls.CombineSignatures(sig1, sig2)
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if err != nil {
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t.Errorf("CombineSignatures failed: %v", err)
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}
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if res, _ := bls.Verify(pk, msg, sig); !res {
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t.Errorf("Combined signature does not verify")
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}
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sig, err = bls.CombineSignatures(sig1)
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if err == nil {
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t.Errorf("CombineSignatures succeeded when it should've failed")
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}
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if res, _ := bls.Verify(pk, msg, sig); res {
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t.Errorf("Combined signature verify succeeded when it should've failed")
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}
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}
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// Ensure that duplicate partial signatures cannot be used to create a complete one
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func TestBasicPartialDuplicateShares(t *testing.T) {
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total := uint(5)
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ikm := make([]byte, 32)
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bls := NewSigBasic()
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pk1, sks1, err := bls.ThresholdKeygenWithSeed(ikm, 3, total)
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if err != nil {
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t.Errorf("ThresholdKeygen failed: %v", err)
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}
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// Generate partial signatures for both sets of keys
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msg := make([]byte, 10)
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sigs1 := make([]*PartialSignature, total)
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for i := range sks1 {
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sigs1[i], err = bls.PartialSign(sks1[i], msg)
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if err != nil {
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t.Errorf("PartialSign failed: %v", err)
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}
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}
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// Try combining duplicates from group 1
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sig, err := bls.CombineSignatures(sigs1[0], sigs1[0], sigs1[1], sigs1[1])
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if err == nil {
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t.Errorf("CombineSignatures expected to fail but succeeded")
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}
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// Signature shouldn't validate
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if res, _ := bls.Verify(pk1, msg, sig); res {
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t.Errorf("CombineSignatures worked with duplicate partial signatures")
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}
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}
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// Ensure that mixed partial signatures from distinct origins create invalid composite signatures
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func TestBasicPartialMixupShares(t *testing.T) {
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total := uint(5)
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ikm := make([]byte, 32)
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bls := NewSigBasic()
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pk1, sks1, err := bls.ThresholdKeygenWithSeed(ikm, 3, total)
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if err != nil {
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t.Errorf("ThresholdKeygen failed: %v", err)
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}
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for i := range ikm {
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ikm[i] = 1
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}
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pk2, sks2, err := bls.ThresholdKeygenWithSeed(ikm, 3, total)
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if err != nil {
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t.Errorf("ThresholdKeygen failed: %v", err)
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}
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// Generate partial signatures for both sets of keys
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msg := make([]byte, 10)
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sigs1 := make([]*PartialSignature, total)
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sigs2 := make([]*PartialSignature, total)
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for i := range sks1 {
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sigs1[i], err = bls.PartialSign(sks1[i], msg)
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if err != nil {
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t.Errorf("PartialSign failed: %v", err)
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}
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sigs2[i], err = bls.PartialSign(sks2[i], msg)
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if err != nil {
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t.Errorf("PartialSign failed: %v", err)
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}
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}
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// Try combining 2 from group 1 and 2 from group 2
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sig, err := bls.CombineSignatures(sigs1[0], sigs1[1], sigs2[2], sigs2[3])
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if err != nil {
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t.Errorf("CombineSignatures failed: %v", err)
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}
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// Signature shouldn't validate
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if res, _ := bls.Verify(pk1, msg, sig); res {
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t.Errorf(
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"CombineSignatures worked with different shares of two secret keys for the same message",
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)
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}
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if res, _ := bls.Verify(pk2, msg, sig); res {
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t.Errorf(
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"CombineSignatures worked with different shares of two secret keys for the same message",
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)
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}
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// Should error out due to duplicate identifiers
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_, err = bls.CombineSignatures(sigs1[0], sigs1[1], sigs2[0], sigs2[1])
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if err == nil {
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t.Errorf("CombineSignatures expected to fail but succeeded.")
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}
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}
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func TestIdentityPublicKey(t *testing.T) {
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bls := NewSigBasic()
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_, sk, err := bls.Keygen()
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if err != nil {
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t.Errorf("Keygen failed: %v", err)
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}
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msg := []byte{0, 0, 0, 0}
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sig, _ := bls.Sign(sk, msg)
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pk := PublicKey{value: *new(bls12381.G1).Identity()}
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if res, _ := bls.Verify(&pk, msg, sig); res {
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t.Errorf("Verify succeeded when the public key is the identity.")
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}
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}
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func TestThresholdSignTooHighAndLow(t *testing.T) {
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bls := NewSigBasic()
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_, sks, err := bls.ThresholdKeygen(3, 5)
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if err != nil {
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t.Errorf("ThresholdKeygen failed: %v", err)
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}
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msg := make([]byte, 10)
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ps, err := bls.PartialSign(sks[0], msg)
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if err != nil {
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t.Errorf("PartialSign failed: %v", err)
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}
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_, err = bls.CombineSignatures(ps)
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if err == nil {
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t.Errorf("CombinSignatures succeeded when it should've failed")
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}
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pss := make([]*PartialSignature, 256)
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_, err = bls.CombineSignatures(pss...)
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if err == nil {
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t.Errorf("CombinSignatures succeeded when it should've failed")
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}
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}
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