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108 lines
2.5 KiB
108 lines
2.5 KiB
package crypto
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/tendermint/ed25519"
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amino "github.com/tendermint/go-amino"
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)
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func TestSignAndValidateEd25519(t *testing.T) {
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privKey := GenPrivKeyEd25519()
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pubKey := privKey.PubKey()
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msg := CRandBytes(128)
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sig := privKey.Sign(msg)
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// Test the signature
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assert.True(t, pubKey.VerifyBytes(msg, sig))
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// Mutate the signature, just one bit.
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sigEd := sig.(SignatureEd25519)
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sigEd[7] ^= byte(0x01)
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sig = sigEd
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assert.False(t, pubKey.VerifyBytes(msg, sig))
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}
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func TestSignAndValidateSecp256k1(t *testing.T) {
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privKey := GenPrivKeySecp256k1()
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pubKey := privKey.PubKey()
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msg := CRandBytes(128)
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sig := privKey.Sign(msg)
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assert.True(t, pubKey.VerifyBytes(msg, sig))
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// Mutate the signature, just one bit.
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sigEd := sig.(SignatureSecp256k1)
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sigEd[3] ^= byte(0x01)
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sig = sigEd
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assert.False(t, pubKey.VerifyBytes(msg, sig))
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}
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func TestSignatureEncodings(t *testing.T) {
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cases := []struct {
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privKey PrivKey
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sigSize int
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sigPrefix amino.PrefixBytes
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}{
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{
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privKey: GenPrivKeyEd25519(),
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sigSize: ed25519.SignatureSize,
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sigPrefix: [4]byte{0x3d, 0xa1, 0xdb, 0x2a},
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},
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{
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privKey: GenPrivKeySecp256k1(),
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sigSize: 0, // unknown
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sigPrefix: [4]byte{0x16, 0xe1, 0xfe, 0xea},
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},
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}
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for _, tc := range cases {
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// note we embed them from the beginning....
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pubKey := tc.privKey.PubKey()
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msg := CRandBytes(128)
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sig := tc.privKey.Sign(msg)
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// store as amino
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bin, err := cdc.MarshalBinaryBare(sig)
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require.Nil(t, err, "%+v", err)
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if tc.sigSize != 0 {
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// Q: where is 1 byte coming from?
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assert.Equal(t, tc.sigSize+amino.PrefixBytesLen+1, len(bin))
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}
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assert.Equal(t, tc.sigPrefix[:], bin[0:amino.PrefixBytesLen])
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// and back
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sig2 := Signature(nil)
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err = cdc.UnmarshalBinaryBare(bin, &sig2)
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require.Nil(t, err, "%+v", err)
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assert.EqualValues(t, sig, sig2)
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assert.True(t, pubKey.VerifyBytes(msg, sig2))
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/*
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// store as json
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js, err := data.ToJSON(sig)
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require.Nil(t, err, "%+v", err)
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assert.True(t, strings.Contains(string(js), tc.sigName))
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// and back
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sig3 := Signature{}
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err = data.FromJSON(js, &sig3)
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require.Nil(t, err, "%+v", err)
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assert.EqualValues(t, sig, sig3)
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assert.True(t, pubKey.VerifyBytes(msg, sig3))
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// and make sure we can textify it
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text, err := data.ToText(sig)
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require.Nil(t, err, "%+v", err)
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assert.True(t, strings.HasPrefix(text, tc.sigName))
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*/
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}
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}
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