feat: modified verifyEd25519 precompile to accept msg argument as bytes32

Author: 0xNilesh

precompiles/verifier/ISolVerifier.sol

@@ -14,5 +14,5 @@ interface ISolVerifier {
     /// @param msg The message that was signed
     /// @param signature The signature to verify
     /// @return isValid True if the signature is valid
-    function verifyEd25519(bytes calldata pubKey, bytes calldata msg, bytes calldata signature) external view returns (bool);
+    function verifyEd25519(bytes calldata pubKey, bytes32 msg, bytes calldata signature) external view returns (bool);
 }

precompiles/verifier/README.md

@@ -15,9 +15,9 @@ cd ../../
 # if you just get 0x, make sure the address is in the app_state["evm"]["params"]["active_static_precompiles"]
 
 # precompile directly
-cast abi-decode "verifyEd25519(bytes,bytes,bytes)(bool)" `cast call 0x0000000000000000000000000000000000000902 "verifyEd25519(bytes,bytes,bytes)" \
+cast abi-decode "verifyEd25519(bytes,bytes32,bytes)(bool)" `cast call 0x0000000000000000000000000000000000000902 "verifyEd25519(bytes,bytes32,bytes)" \
   "5DgQvTf6BvVs5Y4vNFnB5iXvTQvZah7y2JbT1dFxN6T2" \
-  0x68656c6c6f776f726c64 \
+  0x68656c6c6f776f726...bytes32_message_here \
   0x6f7c...your_signature_here
 `
 ```

precompiles/verifier/abi.json

@@ -15,9 +15,9 @@
           "type": "bytes"
         },
         {
-          "internalType": "bytes",
+          "internalType": "bytes32",
           "name": "msg",
-          "type": "bytes"
+          "type": "bytes32"
         },
         {
           "internalType": "bytes",

precompiles/verifier/query.go

@@ -24,10 +24,12 @@ func (p Precompile) VerifyEd25519(
 		return nil, fmt.Errorf("invalid pubKey type")
 	}
 
-	msg, ok := args[1].([]byte)
+	// Convert the message bytes to a bytes32 slice
+	msgRaw, ok := args[1].([32]byte)
 	if !ok {
 		return nil, fmt.Errorf("invalid msg type")
 	}
+	msg := msgRaw[:]
 
 	signature, ok := args[2].([]byte)
 	if !ok {