PHP Dokumentation: Function mcrypt-enc-get-iv-size
12. Januar 2010 von werner
mcrypt_enc_get_iv_size
(PHP 4 >= 4.0.2, PHP 5)
mcrypt_enc_get_iv_size — Returns the size of the IV of the opened algorithm
Beschreibung
This function returns the size of the IV of the algorithm specified by the encryption descriptor in bytes. An IV is used in cbc, cfb and ofb modes, and in some algorithms in stream mode.
Parameter-Liste
- td
The encryption descriptor.
Rückgabewerte
Returns the size of the IV, or 0 if the IV is ignored in the algorithm.
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