(PHP 4 >= 4.0.2, PHP 5, PHP 7) Checks whether the opened mode outputs blocks

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Decrypts crypttext with given parameters

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

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Free certificate resource

(PHP 4, PHP 5, PHP 7) Creates an initialization vector (IV) from a random source

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Generates a new private key

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Alias of

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

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Returns the blocksize of the specified algorithm

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Returns if the specified module is a block algorithm or not