Add Ethereum-compatible aliases for BLS12-381

Author: Jim8y

src/Neo/SmartContract/Native/CryptoLib.BLS12_381.cs

@@ -97,6 +97,14 @@ public static InteropInterface Bls12381Add(InteropInterface x, InteropInterface
             };
         }
 
+        [ContractMethod(CpuFee = 1 << 19, Name = "bls12_g1add")]
+        public static InteropInterface Bls12G1Add(InteropInterface x, InteropInterface y)
+            => Bls12381Add(x, y);
+
+        [ContractMethod(CpuFee = 1 << 19, Name = "bls12_g2add")]
+        public static InteropInterface Bls12G2Add(InteropInterface x, InteropInterface y)
+            => Bls12381Add(x, y);
+
         /// <summary>
         /// Mul operation of gt point and multiplier
         /// </summary>
@@ -119,6 +127,14 @@ public static InteropInterface Bls12381Mul(InteropInterface x, byte[] mul, bool
             };
         }
 
+        [ContractMethod(CpuFee = 1 << 21, Name = "bls12_g1mul")]
+        public static InteropInterface Bls12G1Mul(InteropInterface x, byte[] mul, bool neg)
+            => Bls12381Mul(x, mul, neg);
+
+        [ContractMethod(CpuFee = 1 << 21, Name = "bls12_g2mul")]
+        public static InteropInterface Bls12G2Mul(InteropInterface x, byte[] mul, bool neg)
+            => Bls12381Mul(x, mul, neg);
+
         /// <summary>
         /// Pairing operation of g1 and g2
         /// </summary>
@@ -142,5 +158,9 @@ public static InteropInterface Bls12381Pairing(InteropInterface g1, InteropInter
             };
             return new(Bls12.Pairing(in g1a, in g2a));
         }
+
+        [ContractMethod(CpuFee = 1 << 23, Name = "bls12_pairing")]
+        public static InteropInterface Bls12Pairing(InteropInterface g1, InteropInterface g2)
+            => Bls12381Pairing(g1, g2);
     }
 }

tests/Neo.UnitTests/SmartContract/Native/UT_CryptoLib.cs

@@ -18,6 +18,7 @@
 using Neo.Network.P2P;
 using Neo.Network.P2P.Payloads;
 using Neo.SmartContract;
+using Neo.Persistence;
 using Neo.SmartContract.Native;
 using Neo.VM;
 using Org.BouncyCastle.Utilities.Encoders;
@@ -263,6 +264,33 @@ public void TestBls12381Pairing()
             Assert.AreEqual(expected.ToLower(), result.GetInterface<Gt>().ToArray().ToHexString());
         }
 
+        [TestMethod]
+        public void TestBls12AddAliases()
+        {
+            var expected = InvokeBlsAddMethod("bls12381Add");
+            foreach (var alias in new[] { "bls12_g1add", "bls12_g2add" })
+            {
+                CollectionAssert.AreEqual(expected, InvokeBlsAddMethod(alias));
+            }
+        }
+
+        [TestMethod]
+        public void TestBls12MulAliases()
+        {
+            var expected = InvokeBlsMulMethod("bls12381Mul", false);
+            foreach (var alias in new[] { "bls12_g1mul", "bls12_g2mul" })
+            {
+                CollectionAssert.AreEqual(expected, InvokeBlsMulMethod(alias, false));
+            }
+        }
+
+        [TestMethod]
+        public void TestBls12PairingAlias()
+        {
+            var expected = InvokeBlsPairingMethod("bls12381Pairing");
+            CollectionAssert.AreEqual(expected, InvokeBlsPairingMethod("bls12_pairing"));
+        }
+
         [TestMethod]
         public void Bls12381Equal()
         {
@@ -1174,5 +1202,62 @@ private bool CallVerifyWithEd25519(byte[] message, byte[] publicKey, byte[] sign
                 return engine.ResultStack.Pop().GetBoolean();
             }
         }
+
+        private byte[] InvokeBlsAddMethod(string methodName)
+        {
+            var snapshotCache = TestBlockchain.GetTestSnapshotCache();
+            using ScriptBuilder script = new();
+            script.EmitDynamicCall(NativeContract.CryptoLib.Hash, "bls12381Deserialize", gt);
+            script.EmitDynamicCall(NativeContract.CryptoLib.Hash, "bls12381Deserialize", gt);
+            script.EmitPush(2);
+            script.Emit(OpCode.PACK);
+            script.EmitPush(CallFlags.All);
+            script.EmitPush(methodName);
+            script.EmitPush(NativeContract.CryptoLib.Hash);
+            script.EmitSysCall(ApplicationEngine.System_Contract_Call);
+            return ExecuteBlsScript(script, snapshotCache);
+        }
+
+        private byte[] InvokeBlsMulMethod(string methodName, bool neg)
+        {
+            var snapshotCache = TestBlockchain.GetTestSnapshotCache();
+            using ScriptBuilder script = new();
+            byte[] data = new byte[32];
+            data[0] = 0x03;
+            script.EmitPush(neg);
+            script.EmitPush(data);
+            script.EmitDynamicCall(NativeContract.CryptoLib.Hash, "bls12381Deserialize", gt);
+            script.EmitPush(3);
+            script.Emit(OpCode.PACK);
+            script.EmitPush(CallFlags.All);
+            script.EmitPush(methodName);
+            script.EmitPush(NativeContract.CryptoLib.Hash);
+            script.EmitSysCall(ApplicationEngine.System_Contract_Call);
+            return ExecuteBlsScript(script, snapshotCache);
+        }
+
+        private byte[] InvokeBlsPairingMethod(string methodName)
+        {
+            var snapshotCache = TestBlockchain.GetTestSnapshotCache();
+            using ScriptBuilder script = new();
+            script.EmitDynamicCall(NativeContract.CryptoLib.Hash, "bls12381Deserialize", g2);
+            script.EmitDynamicCall(NativeContract.CryptoLib.Hash, "bls12381Deserialize", g1);
+            script.EmitPush(2);
+            script.Emit(OpCode.PACK);
+            script.EmitPush(CallFlags.All);
+            script.EmitPush(methodName);
+            script.EmitPush(NativeContract.CryptoLib.Hash);
+            script.EmitSysCall(ApplicationEngine.System_Contract_Call);
+            return ExecuteBlsScript(script, snapshotCache);
+        }
+
+        private byte[] ExecuteBlsScript(ScriptBuilder script, StoreCache snapshotCache)
+        {
+            using var engine = ApplicationEngine.Create(TriggerType.Application, null, snapshotCache,
+                settings: TestProtocolSettings.Default);
+            engine.LoadScript(script.ToArray());
+            Assert.AreEqual(VMState.HALT, engine.Execute());
+            return engine.ResultStack.Pop().GetInterface<Gt>().ToArray();
+        }
     }
 }