(PHP 4, PHP 5, PHP 7) Gets the block size of the specified hash
(PHP 4 >= 4.0.4, PHP 5, PHP 7) Generates a key
(PHP 4, PHP 5, PHP 7) Gets the highest available hash ID
(PHP 4, PHP 5, PHP 7) Computes hash string mhash
(PHP 4, PHP 5, PHP 7) Gets the name of the specified hash