Is it possible to extract the wallet_key (aes key) for the encrypted master key from wallet.dat?

According to this link (https://bitcointalk.org/index.php?topic=5331322.0), the initialized vector and aes key (wallet_key) can be derived by hashing the password with sha512, and this wallet_key can be extracted from the wallet. do you have? dat (then public information?)? And is this wallet_key the same as the value extracted from bitcoin2john.py? hash512 = hashlib.pbkdf2_hmac(‘sha512’, password, salt, number of iterations) wallet_key = hash512(0:32) iv = hash512(32:48)