I use PHP 5.3.3 and is trying to do a blowfish encryption with these options:
The bytes of the encrypted data are hex-coded and left padded up to two characters with a zero. Blowfish ECB is used for encryption with a attached salt.
It's from an integration manual of EVO payments international (creditcard payments).
Can I use crypt()? (password_hash() is not available in 5.3)