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mcrypt_enc_get_block_size	mcrypt_enc_get_key_size

	Last updated: Thu, 26 Jun 2008

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

Description

int mcrypt_enc_get_iv_size ( resource $td )

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.

Parameters

td: The encryption descriptor.

Return Values

Returns the size of the IV, or 0 if the IV is ignored in the algorithm.

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Returns the size of the IV of the opened algorithm

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mcrypt_enc_get_block_size	mcrypt_enc_get_key_size

	Last updated: Thu, 26 Jun 2008

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