PHP
PHP jest obiektowym, skryptowym jezykiem programowania zaprojektowanym do tworzenia dynamicznych stron www.Funkcje PHP
Oficjalna strona PHP
Dodatkowe aplikacje PHP
Dodatkowe modu³y PHP
Wortal PHP
(PHP 4 >= 4.0.2, PHP 5)
mcrypt_generic_init -- This function initializes all buffers needed for encryptionThe maximum length of the key should be the one obtained by calling mcrypt_enc_get_key_size() and every value smaller than this is legal. The IV should normally have the size of the algorithms block size, but you must obtain the size by calling mcrypt_enc_get_iv_size(). IV is ignored in ECB. IV MUST exist in CFB, CBC, STREAM, nOFB and OFB modes. It needs to be random and unique (but not secret). The same IV must be used for encryption/decryption. If you do not want to use it you should set it to zeros, but this is not recommended.
The function returns a negative value on error, -3 when the key length was incorrect, -4 when there was a memory allocation problem and any other return value is an unknown error. If an error occurs a warning will be displayed accordingly. FALSE is returned if incorrect parameters were passed.
You need to call this function before every call to mcrypt_generic() or mdecrypt_generic().
See for an example mcrypt_module_open().
| Poprzedni | Spis treści | Następny |
| mcrypt_generic_end | Początek rozdziału | mcrypt_generic |