01-08-2018, 07:27 PM
Hashcat's implementations of the Ethereum wallet modes, including presale, do not rely on the ethereum wallet code at all to check if the password is correct/decrypt. A bug in their code for decryption/opening wallets wont affect hashcat and the password will still be recovered. However, if there was a bug on generation of the wallet, such as a encoding issue with the password->key step, then hashcat will still require that you hit the correct password for decryption, which may not be the exact password you had set in the wallet.