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

(PHP 5 >= 5.2.0, PHP 7) Returns an array with the key details

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

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

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

(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 size of the IV belonging to a specific cipher/mode combination

(PHP 4, PHP 5, PHP 7) Gets the highest available hash ID

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Sign a CSR with another certificate (or itself) and generate a certificate

(PHP 5 >= 5.6.0, PHP 7) Generate a new signed public key and challenge