(PHP 4 >= 4.0.2, PHP 5, PHP 7) Gets an array of all supported ciphers

(PHP 4, PHP 5, PHP 7) Gets the key size of the specified cipher

(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 blocksize of the opened algorithm

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Returns if the specified mode outputs blocks or not

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Closes the mcrypt module

(PHP 4, PHP 5, PHP 7) Gets the name of the specified cipher

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Gets an array of all supported modes

(PHP 4 >= 4.0.2, PHP 5, PHP 7) This function checks whether the specified algorithm is a block algorithm

(PHP 4 >= 4.0.2, PHP 5, PHP 7) This function initializes all buffers needed for encryption