PHP. Руководство по PHP. 2005
mcrypt_ofb
mcrypt_ofb
Description
string mcrypt_ofb (int cipher, string key, string data, int mode, string iv)string mcrypt_ofb (string cipher, string key, string data, int mode [, string iv])
The first prototype is when linked against libmcrypt 2.2.x, the
second when linked against libmcrypt 2.4.x or higher. The
mode should be either
MCRYPT_ENCRYPT or
MCRYPT_DECRYPT.
This function should not be used anymore, see
mcrypt_generic() and
mdecrypt_generic() for replacements.
mcrypt_module_self_test
mdecrypt_generic
Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.