neoneo-go/pkg/crypto/keys/sign_verify_test.go
2020-10-07 10:04:19 +03:00

113 lines
3.1 KiB
Go

package keys
import (
"crypto/ecdsa"
"math/big"
"testing"
"github.com/btcsuite/btcd/btcec"
"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestIssue1223(t *testing.T) {
var d, x, y big.Int
d.SetString("75066030006596498716801752450216843918658392116070031536027203512060270094427", 10)
x.SetString("56810139335762307690884151098712528235297095596167964448512639328424930082240", 10)
y.SetString("108055740278314806025442297642651169427004858252141003070998851291610422839293", 10)
privateKey := &btcec.PrivateKey{
PublicKey: ecdsa.PublicKey{
Curve: btcec.S256(),
X: &x,
Y: &y,
},
D: &d,
}
pubKey := PublicKey(ecdsa.PublicKey{
Curve: btcec.S256(),
X: privateKey.X,
Y: privateKey.Y,
})
hashedData := hash.Sha256([]byte("sample"))
signature, err := privateKey.Sign(hashedData.BytesBE())
require.NoError(t, err)
signedData := getSignatureSlice(privateKey.Curve, signature.R, signature.S)
require.True(t, pubKey.Verify(signedData, hashedData.BytesBE()))
}
func TestPubKeyVerify(t *testing.T) {
var data = []byte("sample")
hashedData := hash.Sha256(data)
t.Run("Secp256r1", func(t *testing.T) {
privKey, err := NewPrivateKey()
assert.Nil(t, err)
signedData := privKey.Sign(data)
pubKey := privKey.PublicKey()
result := pubKey.Verify(signedData, hashedData.BytesBE())
expected := true
assert.Equal(t, expected, result)
// Small signature, no panic.
assert.False(t, pubKey.Verify([]byte{1, 2, 3}, hashedData.BytesBE()))
pubKey = &PublicKey{}
assert.False(t, pubKey.Verify(signedData, hashedData.BytesBE()))
})
t.Run("Secp256k1", func(t *testing.T) {
privateKey, err := btcec.NewPrivateKey(btcec.S256())
assert.Nil(t, err)
signature, err := privateKey.Sign(hashedData.BytesBE())
require.NoError(t, err)
signedData := getSignatureSlice(privateKey.Curve, signature.R, signature.S)
pubKey := PublicKey(ecdsa.PublicKey{
Curve: btcec.S256(),
X: privateKey.X,
Y: privateKey.Y,
})
require.True(t, pubKey.Verify(signedData, hashedData.BytesBE()))
pubKey = PublicKey{}
assert.False(t, pubKey.Verify(signedData, hashedData.BytesBE()))
})
}
func TestWrongPubKey(t *testing.T) {
sample := []byte("sample")
hashedData := hash.Sha256(sample)
t.Run("Secp256r1", func(t *testing.T) {
privKey, _ := NewPrivateKey()
signedData := privKey.Sign(sample)
secondPrivKey, _ := NewPrivateKey()
wrongPubKey := secondPrivKey.PublicKey()
actual := wrongPubKey.Verify(signedData, hashedData.BytesBE())
expcted := false
assert.Equal(t, expcted, actual)
})
t.Run("Secp256k1", func(t *testing.T) {
privateKey, err := btcec.NewPrivateKey(btcec.S256())
assert.Nil(t, err)
signature, err := privateKey.Sign(hashedData.BytesBE())
assert.Nil(t, err)
signedData := getSignatureSlice(privateKey.Curve, signature.R, signature.S)
secondPrivKey, err := btcec.NewPrivateKey(btcec.S256())
assert.Nil(t, err)
wrongPubKey := PublicKey(ecdsa.PublicKey{
Curve: btcec.S256(),
X: secondPrivKey.X,
Y: secondPrivKey.Y,
})
assert.False(t, wrongPubKey.Verify(signedData, hashedData.BytesBE()))
})
}