mcrypt_module_get_algo_key_size
(PHP 4 >= 4.0.2, PHP 5)
mcrypt_module_get_algo_key_size — Returns the maximum supported keysize of the opened mode
说明
int mcrypt_module_get_algo_key_size ( string $algorithm [, string $lib_dir ] )Gets the maximum supported keysize of the opened mode.
参数
- algorithm
-
The algorithm name.
- lib_dir
-
This optional parameter can contain the location where the mode module is on the system.
返回值
This function returns the maximum supported key size of the algorithm specified in bytes.
