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mcrypt_enc_get_iv_size

(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)

mcrypt_enc_get_iv_size — Returns the size of the IV of the opened algorithm

Warnung

Diese Funktion wurde in PHP 7.1.0 als DEPRECATED (veraltet) markiert und wurde in PHP 7.2.0 ENTFERNT. Von der Verwendung dieser Funktion wird dringend abgeraten.

Beschreibung

mcrypt_enc_get_iv_size(resource $td): int

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 by the algorithm.