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package blindsecp256k1
import (
"encoding/hex"
"encoding/json"
"math/big"
"testing"
"github.com/ethereum/go-ethereum/crypto"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestMarshalers(t *testing.T) {
// Point
p := G.Mul(big.NewInt(1234))
b, err := json.Marshal(p)
require.Nil(t, err)
assert.Equal(t,
`{"x":"102884003323827292915668239759940053105992008087520207150474896054185180420338","y":"49384988101491619794462775601349526588349137780292274540231125201115197157452"}`, //nolint:lll
string(b))
var p2 *Point
err = json.Unmarshal(b, &p2)
require.Nil(t, err)
assert.Equal(t, p, p2)
// PublicKey
pk := PublicKey(*p)
b, err = json.Marshal(pk)
require.Nil(t, err)
assert.Equal(t,
`{"x":"102884003323827292915668239759940053105992008087520207150474896054185180420338","y":"49384988101491619794462775601349526588349137780292274540231125201115197157452"}`, //nolint:lll
string(b))
var pk2 PublicKey
err = json.Unmarshal(b, &pk2)
require.Nil(t, err)
assert.Equal(t, pk, pk2)
// Signature
sig := Signature{
S: big.NewInt(9876),
F: p,
}
b, err = json.Marshal(sig)
require.Nil(t, err)
assert.Equal(t,
`{"s":"9876","f":{"x":"102884003323827292915668239759940053105992008087520207150474896054185180420338","y":"49384988101491619794462775601349526588349137780292274540231125201115197157452"}}`, //nolint:lll
string(b))
var sig2 Signature
err = json.Unmarshal(b, &sig2)
require.Nil(t, err)
assert.Equal(t, sig, sig2)
}
func TestBytes(t *testing.T) {
// Point
p := &Point{
X: big.NewInt(3),
Y: big.NewInt(3),
}
b := p.Bytes()
assert.Equal(t, "03000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000000000000000000000000000000000000", hex.EncodeToString(b)) //nolint:lll
p2, err := NewPointFromBytes(b)
assert.Nil(t, err)
assert.Equal(t, p, p2)
p = G.Mul(big.NewInt(1234))
b = p.Bytes()
assert.Equal(t, "f258163f65f65865a79a4279e2ebabb5a57b85501dd4b381d1dc605c434876e34c308bd3f18f062d5cc07f34948ced82f9a76f9c3e65ae64f158412da8e92e6d", hex.EncodeToString(b)) //nolint:lll
p2, err = NewPointFromBytes(b)
assert.Nil(t, err)
assert.Equal(t, p, p2)
// PublicKey
pk := PublicKey(*p)
b = pk.Bytes()
assert.Equal(t, "f258163f65f65865a79a4279e2ebabb5a57b85501dd4b381d1dc605c434876e34c308bd3f18f062d5cc07f34948ced82f9a76f9c3e65ae64f158412da8e92e6d", hex.EncodeToString(b)) //nolint:lll
pk2, err := NewPublicKeyFromBytes(b)
assert.Nil(t, err)
assert.Equal(t, &pk, pk2)
// Signature
sig := Signature{
S: big.NewInt(9876),
F: p,
}
b = sig.Bytes()
assert.Equal(t, "9426000000000000000000000000000000000000000000000000000000000000f258163f65f65865a79a4279e2ebabb5a57b85501dd4b381d1dc605c434876e34c308bd3f18f062d5cc07f34948ced82f9a76f9c3e65ae64f158412da8e92e6d", hex.EncodeToString(b)) //nolint:lll
sig2, err := NewSignatureFromBytes(b)
assert.Nil(t, err)
assert.Equal(t, &sig, sig2)
}
func TestImportECDSApubKey(t *testing.T) {
// Generate an ECDSA key
k, err := crypto.GenerateKey()
assert.Nil(t, err)
// Import the ECDSA Public key bytes into a PublicKey type
pk, err := NewPublicKeyFromECDSA(crypto.FromECDSAPub(&k.PublicKey))
assert.Nil(t, err)
// Set the ECDSA Private key point as a blindsecp256k1 PrivateKey type
bk := PrivateKey(*k.D)
// Compare both public keys
assert.Equal(t, bk.Public().Bytes(), pk.Bytes())
}