This function returns the size of the iv of the algorithm specified by the encryption descriptor in bytes. If it returns '0' then the IV is ignored in the algorithm. An IV is used in cbc, cfb and ofb modes, and in some algorithms in stream mode.
| Пред. | Начало | След. |
| mcrypt_enc_get_block_size | Уровень выше | mcrypt_enc_get_key_size |