mirror of
https://github.com/fluencelabs/tendermint
synced 2025-04-30 09:12:14 +00:00
74 lines
2.7 KiB
Go
74 lines
2.7 KiB
Go
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package multisig
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import (
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"math/rand"
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/tendermint/tendermint/crypto"
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"github.com/tendermint/tendermint/crypto/ed25519"
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"github.com/tendermint/tendermint/crypto/secp256k1"
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)
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func TestThresholdMultisig(t *testing.T) {
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msg := []byte{1, 2, 3, 4}
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pubkeys, sigs := generatePubKeysAndSignatures(5, msg)
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multisigKey := NewThresholdMultiSignaturePubKey(2, pubkeys)
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multisignature := NewMultisig(5)
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require.False(t, multisigKey.VerifyBytes(msg, multisignature.Marshal()))
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multisignature.AddSignatureFromPubkey(sigs[0], pubkeys[0], pubkeys)
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require.False(t, multisigKey.VerifyBytes(msg, multisignature.Marshal()))
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// Make sure adding the same signature twice doesn't make the signature pass
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multisignature.AddSignatureFromPubkey(sigs[0], pubkeys[0], pubkeys)
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require.False(t, multisigKey.VerifyBytes(msg, multisignature.Marshal()))
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// Adding two signatures should make it pass, as k = 2
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multisignature.AddSignatureFromPubkey(sigs[3], pubkeys[3], pubkeys)
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require.True(t, multisigKey.VerifyBytes(msg, multisignature.Marshal()))
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// Adding a third invalid signature should make verification fail.
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multisignature.AddSignatureFromPubkey(sigs[0], pubkeys[4], pubkeys)
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require.False(t, multisigKey.VerifyBytes(msg, multisignature.Marshal()))
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// try adding the invalid signature one signature before
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// first reset the multisig
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multisignature.BitArray.SetIndex(4, false)
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multisignature.Sigs = multisignature.Sigs[:2]
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multisignature.AddSignatureFromPubkey(sigs[0], pubkeys[2], pubkeys)
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require.False(t, multisigKey.VerifyBytes(msg, multisignature.Marshal()))
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}
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func TestMultiSigPubkeyEquality(t *testing.T) {
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msg := []byte{1, 2, 3, 4}
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pubkeys, _ := generatePubKeysAndSignatures(5, msg)
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multisigKey := NewThresholdMultiSignaturePubKey(2, pubkeys)
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var unmarshalledMultisig *ThresholdMultiSignaturePubKey
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cdc.MustUnmarshalBinary(multisigKey.Bytes(), &unmarshalledMultisig)
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require.Equal(t, multisigKey, unmarshalledMultisig)
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// Ensure that reordering pubkeys is treated as a different pubkey
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pubkeysCpy := make([]crypto.PubKey, 5)
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copy(pubkeysCpy, pubkeys)
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pubkeysCpy[4] = pubkeys[3]
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pubkeysCpy[3] = pubkeys[4]
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multisigKey2 := NewThresholdMultiSignaturePubKey(2, pubkeysCpy)
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require.NotEqual(t, multisigKey, multisigKey2)
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}
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func generatePubKeysAndSignatures(n int, msg []byte) (pubkeys []crypto.PubKey, signatures [][]byte) {
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pubkeys = make([]crypto.PubKey, n)
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signatures = make([][]byte, n)
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for i := 0; i < n; i++ {
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var privkey crypto.PrivKey
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if rand.Int63()%2 == 0 {
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privkey = ed25519.GenPrivKey()
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} else {
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privkey = secp256k1.GenPrivKey()
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}
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pubkeys[i] = privkey.PubKey()
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signatures[i], _ = privkey.Sign(msg)
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}
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return
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}
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