(PHP 4 >= 4.0.2)
mcrypt_module_get_algo_key_size -- Returns the maximum supported keysize of the opened mode
Description
int mcrypt_module_get_algo_key_size (string algorithm [, string lib_dir])
This function returns the maximum supported key size of the
algorithm specified in bytes. The optional
lib_dir parameter can contain the
location where the mode module is on the system.