php man page for mcrypt_enc_get_iv_size

Query: mcrypt_enc_get_iv_size

OS: php

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

MCRYPT_ENC_GET_IV_SIZE(3)						 1						 MCRYPT_ENC_GET_IV_SIZE(3)

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

SYNOPSIS
int mcrypt_enc_get_iv_size (resource $td)
DESCRIPTION
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
o $td - The encryption descriptor.
RETURN VALUES
Returns the size of the IV, or 0 if the IV is ignored by the algorithm. PHP Documentation Group MCRYPT_ENC_GET_IV_SIZE(3)
Related Man Pages
enc(1) - redhat
enc(1openssl) - opensolaris
get_num_crypts(3) - osf1
mcrypt_get_key_size(3) - php
openssl_get_cipher_methods(3) - php
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