mcrypt_create_iv

mcrypt_ecb

mcrypt

PHP Manual

mcrypt_decrypt

(PHP 4 >= 4.0.2, PHP 5)

mcrypt_decrypt — Decrypts crypttext with given parameters

Описание

string mcrypt_decrypt ( string $cipher , string $key , string $data , string $mode [, string $iv ] )

Decrypts the data and returns the unencrypted data.

Список параметров

cipher

cipher is one of the MCRYPT_ciphername constants of the name of the algorithm as string.

key

key is the key with which the data is encrypted. If it's smaller that the required keysize, it is padded with '\0'.

data

data is the data that will be decrypted with the given cipher and mode. If the size of the data is not n * blocksize, the data will be padded with '\0'.

mode

mode is one of the MCRYPT_MODE_modename constants of one of "ecb", "cbc", "cfb", "ofb", "nofb" or "stream".

iv

The iv parameter is used for the initialisation in CBC, CFB, OFB modes, and in some algorithms in STREAM mode. If you do not supply an IV, while it is needed for an algorithm, the function issues a warning and uses an IV with all bytes set to '\0'.

Возвращаемые значения

Returns the decrypted data as a string.

mcrypt_create_iv

mcrypt_ecb

mcrypt

PHP Manual