(PHP 5 >= 5.2.0, PHP 7) Returns the public key of a CERT

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

(PHP 5 >= 5.3.11, PHP 7) Computes shared secret for public value of remote DH key and local DH key

(PHP 5 >= 5.2.0, PHP 7) Returns the subject of a CERT

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Checks whether the algorithm of the opened mode is a block algorithm

(PHP 5 >= 5.5.0, PHP 7) Returns information about the given hash

(PHP 5 >= 5.1.2, PHP 7, PECL hash >= 1.1) Pump data into an active hashing context from a file

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Encrypts plaintext with given parameters

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

(PHP 4 >= 4.0.7, PHP 5, PHP 7) This function deinitializes an encryption module