mcrypt_enc_get_key_size
(PHP 4 >= 4.0.2, PHP 5)
mcrypt_enc_get_key_size — Returns the maximum supported keysize of the opened mode
说明
int mcrypt_enc_get_key_size ( resource $td )Gets the maximum supported key size of the algorithm in bytes.
参数
- td
-
The encryption descriptor.
返回值
Returns the maximum supported key size of the algorithm in bytes.
