(PHP 4 >= 4.0.2, PHP 5, PHP 7) This function encrypts data

(PHP 4 >= 4.0.2, PHP 5, PHP 7) This function runs a self test on the specified module

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Returns an array with the supported keysizes of the opened algorithm

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Returns the maximum supported keysize of the opened mode

(PHP 4, PHP 5) Encrypts/decrypts data in CBC mode

(PHP 4, PHP 5) Deprecated: Encrypts/decrypts data in ECB mode

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Returns the size of the IV belonging to a specific cipher/mode combination

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Returns the name of the opened algorithm

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Returns the name of the opened mode

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Returns the maximum supported keysize of the opened mode