AA24: Signature Validation Failure

Resolving signature rejection issues in validateUserOp

The smart account’s validateUserOp function has rejected the user operation’s signature.

Resolution Checklist

1. Signature Accuracy:

   • Verify correct signing of the user operation
   • Ensure proper encoding in the signature field

2. UserOpHash Computation:

   • Confirm correct calculation of userOpHash
   • Consider using getUserOperationHash

3. Chain and EntryPoint Verification:

   • Double-check chainId and entryPointAddress in userOpHash computation

4. Smart Account Implementation:

   • Review the signature verification logic in your smart account

5. Advanced Troubleshooting:

   • Employ Tenderly or similar tools to investigate validateUserOp behavior