mcrypt_module_get_algo_key_size
mcrypt_module_get_algo_key_size
Returns the maximum supported keysize of the opened mode
int **mcrypt_module_get_algo_key_size** string $algorithm string $lib_dir
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.