01-31-2019, 09:54 AM
I think you don't know enough about the details. Passwords are typically not used as the cipher keys directly. Otherwise your information is wrong and the password can not be 9 digits long. For AES the passwords would need to be exactly 16, 24 or 32 letters long. In most cryptographic applications there's a key derivation function that sits between the password and the key. You didn't say anything about this. On top of that, there's tons of other details missing. KDF salt, IV, how's the decrypted blob looks like, etc.