(PHP 4 <= 4.2.3, PECL cybercash:1.18)
cybercash_decr — Cybercash decrypt
Decrypts information.
The merchant key.
The session key.
The function returns an associative array with the elements "errcode" and, if "errcode" is FALSE, "outbuff" (string), "outLth" (long) and "macbuff" (string).