(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)
mcrypt_module_get_algo_key_size — Returns the maximum supported keysize of the opened mode
This function has been DEPRECATED as of PHP 7.1.0 and REMOVED as of PHP 7.2.0. Relying on this function is highly discouraged.
Gets the maximum supported keysize of the opened mode.
algorithmThe algorithm name.
lib_dirThis optional parameter can contain the location where the mode module is on the system.
This function returns the maximum supported key size of the algorithm specified in bytes.