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141 lines
3.0 KiB
141 lines
3.0 KiB
package crypto
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import (
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"strings"
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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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data "github.com/tendermint/go-wire/data"
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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.Unwrap().(SignatureEd25519)
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sigEd[7] ^= byte(0x01)
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sig = sigEd.Wrap()
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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.Unwrap().(SignatureSecp256k1)
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sigEd[3] ^= byte(0x01)
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sig = sigEd.Wrap()
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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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sigType byte
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sigName string
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}{
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{
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privKey: GenPrivKeyEd25519().Wrap(),
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sigSize: ed25519.SignatureSize,
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sigType: TypeEd25519,
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sigName: NameEd25519,
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},
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{
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privKey: GenPrivKeySecp256k1().Wrap(),
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sigSize: 0, // unknown
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sigType: TypeSecp256k1,
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sigName: NameSecp256k1,
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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 wire
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bin, err := data.ToWire(sig)
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require.Nil(t, err, "%+v", err)
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if tc.sigSize != 0 {
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assert.Equal(t, tc.sigSize+1, len(bin))
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}
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assert.Equal(t, tc.sigType, bin[0])
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// and back
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sig2 := Signature{}
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err = data.FromWire(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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// 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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func TestWrapping(t *testing.T) {
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// construct some basic constructs
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msg := CRandBytes(128)
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priv := GenPrivKeyEd25519()
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pub := priv.PubKey()
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sig := priv.Sign(msg)
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// do some wrapping
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pubs := []PubKey{
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PubKey{nil},
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pub.Wrap(),
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pub.Wrap().Wrap().Wrap(),
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PubKey{PubKey{PubKey{pub}}}.Wrap(),
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}
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for _, p := range pubs {
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_, ok := p.PubKeyInner.(PubKey)
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assert.False(t, ok)
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}
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sigs := []Signature{
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Signature{nil},
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sig.Wrap(),
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sig.Wrap().Wrap().Wrap(),
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Signature{Signature{Signature{sig}}}.Wrap(),
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}
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for _, s := range sigs {
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_, ok := s.SignatureInner.(Signature)
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assert.False(t, ok)
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}
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}
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