neo-go/pkg/core/native/crypto_test.go

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package native
import (
"encoding/binary"
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"encoding/hex"
"math"
"math/big"
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"testing"
"github.com/nspcc-dev/neo-go/pkg/core/interop"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neo-go/pkg/vm"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/stretchr/testify/require"
)
func TestSha256(t *testing.T) {
c := newCrypto()
ic := &interop.Context{VM: vm.New()}
t.Run("bad arg type", func(t *testing.T) {
require.Panics(t, func() {
c.sha256(ic, []stackitem.Item{stackitem.NewInterop(nil)})
})
})
t.Run("good", func(t *testing.T) {
// 0x0100 hashes to 47dc540c94ceb704a23875c11273e16bb0b8a87aed84de911f2133568115f254
require.Equal(t, "47dc540c94ceb704a23875c11273e16bb0b8a87aed84de911f2133568115f254", hex.EncodeToString(c.sha256(ic, []stackitem.Item{stackitem.NewByteArray([]byte{1, 0})}).Value().([]byte)))
})
}
func TestRIPEMD160(t *testing.T) {
c := newCrypto()
ic := &interop.Context{VM: vm.New()}
t.Run("bad arg type", func(t *testing.T) {
require.Panics(t, func() {
c.ripemd160(ic, []stackitem.Item{stackitem.NewInterop(nil)})
})
})
t.Run("good", func(t *testing.T) {
// 0x0100 hashes to 213492c0c6fc5d61497cf17249dd31cd9964b8a3
require.Equal(t, "213492c0c6fc5d61497cf17249dd31cd9964b8a3", hex.EncodeToString(c.ripemd160(ic, []stackitem.Item{stackitem.NewByteArray([]byte{1, 0})}).Value().([]byte)))
})
}
func TestMurmur32(t *testing.T) {
c := newCrypto()
ic := &interop.Context{VM: vm.New()}
t.Run("bad arg type", func(t *testing.T) {
require.Panics(t, func() {
c.murmur32(ic, []stackitem.Item{stackitem.NewInterop(nil), stackitem.Make(5)})
})
})
t.Run("good", func(t *testing.T) {
// Example from the C# node:
// https://github.com/neo-project/neo/blob/2a64c1cc809d1ff4b3a573c7c22bffbbf69a738b/tests/neo.UnitTests/Cryptography/UT_Murmur32.cs#L18
data := []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1}
seed := 10
expected := make([]byte, 4)
binary.LittleEndian.PutUint32(expected, 378574820)
require.Equal(t, expected, c.murmur32(ic, []stackitem.Item{stackitem.NewByteArray(data), stackitem.Make(seed)}).Value().([]byte))
})
}
func TestCryptoLibVerifyWithECDsa(t *testing.T) {
t.Run("R1", func(t *testing.T) {
testECDSAVerify(t, Secp256r1)
})
t.Run("K1", func(t *testing.T) {
testECDSAVerify(t, Secp256k1)
})
}
func testECDSAVerify(t *testing.T, curve NamedCurve) {
var (
priv *keys.PrivateKey
err error
c = newCrypto()
ic = &interop.Context{VM: vm.New()}
actual stackitem.Item
)
switch curve {
case Secp256k1:
priv, err = keys.NewSecp256k1PrivateKey()
case Secp256r1:
priv, err = keys.NewPrivateKey()
default:
t.Fatal("unknown curve")
}
require.NoError(t, err)
runCase := func(t *testing.T, isErr bool, result interface{}, args ...interface{}) {
argsArr := make([]stackitem.Item, len(args))
for i := range args {
argsArr[i] = stackitem.Make(args[i])
}
if isErr {
require.Panics(t, func() {
_ = c.verifyWithECDsa(ic, argsArr)
})
} else {
require.NotPanics(t, func() {
actual = c.verifyWithECDsa(ic, argsArr)
})
require.Equal(t, stackitem.Make(result), actual)
}
}
msg := []byte("test message")
sign := priv.Sign(msg)
t.Run("bad message item", func(t *testing.T) {
runCase(t, true, false, stackitem.NewInterop("cheburek"), priv.PublicKey().Bytes(), sign, int64(curve))
})
t.Run("bad pubkey item", func(t *testing.T) {
runCase(t, true, false, msg, stackitem.NewInterop("cheburek"), sign, int64(curve))
})
t.Run("bad pubkey bytes", func(t *testing.T) {
runCase(t, true, false, msg, []byte{1, 2, 3}, sign, int64(curve))
})
t.Run("bad signature item", func(t *testing.T) {
runCase(t, true, false, msg, priv.PublicKey().Bytes(), stackitem.NewInterop("cheburek"), int64(curve))
})
t.Run("bad curve item", func(t *testing.T) {
runCase(t, true, false, msg, priv.PublicKey().Bytes(), sign, stackitem.NewInterop("cheburek"))
})
t.Run("bad curve value", func(t *testing.T) {
runCase(t, true, false, msg, priv.PublicKey().Bytes(), sign, new(big.Int).Add(big.NewInt(math.MaxInt64), big.NewInt(1)))
})
t.Run("unknown curve", func(t *testing.T) {
runCase(t, true, false, msg, priv.PublicKey().Bytes(), sign, int64(123))
})
t.Run("invalid signature", func(t *testing.T) {
s := priv.Sign(msg)
s[0] = ^s[0]
runCase(t, false, false, s, priv.PublicKey().Bytes(), msg, int64(curve))
})
t.Run("success", func(t *testing.T) {
runCase(t, false, true, msg, priv.PublicKey().Bytes(), sign, int64(curve))
})
}