diff --git a/pkg/compiler/native_test.go b/pkg/compiler/native_test.go index 088d714b8..8f3b8487b 100644 --- a/pkg/compiler/native_test.go +++ b/pkg/compiler/native_test.go @@ -218,6 +218,12 @@ func TestNativeHelpersCompile(t *testing.T) { {"ripemd160", []string{"[]byte{1, 2, 3}"}}, {"murmur32", []string{"[]byte{1, 2, 3}", "123"}}, {"verifyWithECDsa", []string{"[]byte{1, 2, 3}", pub, sig, "crypto.Secp256k1"}}, + {"bls12381Serialize", []string{"crypto.Bls12381Point{}"}}, + {"bls12381Deserialize", []string{"[]byte{1, 2, 3}"}}, + {"bls12381Equal", []string{"crypto.Bls12381Point{}", "crypto.Bls12381Point{}"}}, + {"bls12381Add", []string{"crypto.Bls12381Point{}", "crypto.Bls12381Point{}"}}, + {"bls12381Mul", []string{"crypto.Bls12381Point{}", "[]byte{1, 2, 3}", "true"}}, + {"bls12381Pairing", []string{"crypto.Bls12381Point{}", "crypto.Bls12381Point{}"}}, }) runNativeTestCases(t, cs.Std.ContractMD, "std", []nativeTestCase{ {"serialize", []string{"[]byte{1, 2, 3}"}}, diff --git a/pkg/interop/native/crypto/crypto.go b/pkg/interop/native/crypto/crypto.go index 8055a6b07..2d82357c0 100644 --- a/pkg/interop/native/crypto/crypto.go +++ b/pkg/interop/native/crypto/crypto.go @@ -43,3 +43,52 @@ func Murmur32(b []byte, seed int) []byte { func VerifyWithECDsa(msg []byte, pub interop.PublicKey, sig interop.Signature, curve NamedCurve) bool { return neogointernal.CallWithToken(Hash, "verifyWithECDsa", int(contract.NoneFlag), msg, pub, sig, curve).(bool) } + +// Bls12381Point represents BLS12-381 curve point (G1 or G2 in the Affine or +// Jacobian form or GT). Bls12381Point structure is needed for the operations +// with the curve's points (serialization, addition, multiplication, pairing and +// equality checks). It's an opaque type that can only be created properly by +// Bls12381Deserialize, Bls12381Add, Bls12381Mul or Bls12381Pairing. The only +// way to expose the Bls12381Point out of the runtime to the outside world is by +// serializing it with Bls12381Serialize method call. +type Bls12381Point struct{} + +// Bls12381Serialize calls `bls12381Serialize` method of native CryptoLib contract +// and serializes given BLS12-381 point into byte array. +func Bls12381Serialize(g Bls12381Point) []byte { + return neogointernal.CallWithToken(Hash, "bls12381Serialize", int(contract.NoneFlag), g).([]byte) +} + +// Bls12381Deserialize calls `bls12381Deserialize` method of native CryptoLib +// contract and deserializes given BLS12-381 point from byte array. +func Bls12381Deserialize(data []byte) Bls12381Point { + return neogointernal.CallWithToken(Hash, "bls12381Deserialize", int(contract.NoneFlag), data).(Bls12381Point) +} + +// Bls12381Equal calls `bls12381Equal` method of native CryptoLib contract and +// checks whether two BLS12-381 points are equal. +func Bls12381Equal(x, y Bls12381Point) bool { + return neogointernal.CallWithToken(Hash, "bls12381Equal", int(contract.NoneFlag), x, y).(bool) +} + +// Bls12381Add calls `bls12381Add` method of native CryptoLib contract and +// performs addition operation over two BLS12-381 points. +func Bls12381Add(x, y Bls12381Point) Bls12381Point { + return neogointernal.CallWithToken(Hash, "bls12381Add", int(contract.NoneFlag), x, y).(Bls12381Point) +} + +// Bls12381Mul calls `bls12381Mul` method of native CryptoLib contract and +// performs multiplication operation over BLS12-381 point and the given scalar +// multiplicator. The multiplicator is the serialized LE representation of the +// field element stored on 4 words (uint64) with 32-bytes length. The last +// argument denotes whether the multiplicator should be negative. +func Bls12381Mul(x Bls12381Point, mul []byte, neg bool) Bls12381Point { + return neogointernal.CallWithToken(Hash, "bls12381Mul", int(contract.NoneFlag), x, mul, neg).(Bls12381Point) +} + +// Bls12381Pairing calls `bls12381Pairing` method of native CryptoLib contract and +// performs pairing operation over two BLS12-381 points which must be G1 and G2 either +// in Affine or Jacobian forms. The result of this operation is GT point. +func Bls12381Pairing(g1, g2 Bls12381Point) Bls12381Point { + return neogointernal.CallWithToken(Hash, "bls12381Pairing", int(contract.NoneFlag), g1, g2).(Bls12381Point) +}