mcrypt_ofb

mcrypt_ofb -- Encrypt/decrypt data in OFB mode

Description

int mcrypt_ofb(int cipher, string key, string data, int mode, string iv);

mcrypt_ofb() encrypts or decrypts (depending on mode) the data with cipher and key in OFB cipher mode and returns the resulting string.

cipher is one of the MCRYPT_ciphername constants.

key is the key supplied to the algorithm. It must be kept secret.

data is the data which shall be encrypted/decrypted.

mode is MCRYPT_ENCRYPT or MCRYPT_DECRYPT.

iv is the initialization vector.

See also: mcrypt_cbc(), mcrypt_cfb(), mcrypt_ecb()