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

(PHP 5 >= 5.1.2, PHP 7, PECL hash >= 1.1) Generate a keyed hash value using the HMAC method

(PHP 7) Generates cryptographically secure pseudo-random integers

(PHP 4, PHP 5, PHP 7) Computes hash string mhash

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Verifies the signature of an S/MIME signed message

(PHP 5 >= 5.5.0, PHP 7) Verifies that a password matches a hash

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

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

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

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