Ethereum Account Abstraction

I have a quick idea about ZK password AA validator.

I want to build a signature validation module by implementing a validateSignature function with Circom, which is simply a Poseidon hash (input: secret, output: commitment).

If a smart account installs this module, storing the commitment on-chain during installation, the smart account could then use a user-defined "password" to submit user operations and initiate any transaction.

Is this idea feasible?

tbh I'm not familiar enough with the zk side but def feels feasible on the smart contract/module side