mcrypt_create_iv
Name
mcrypt_create_iv — Creates an initialization vector
(IV).
Synopsis
string mcrypt_create_iv
(size, rand);
int size: Size of the
vector
int rand: Random
source
Returns
An initialization vector as a string
Description
Possible random sources are MCRYPT_RAND,
MCRYPT_DEV_RANDOM, MCRYPT_DEV_URANDOM.
Example
Example 737. Create
initialization vector with TripleDES encryption
$size = mcrypt_get_block_size(MCRYPT_TripleDES);
$InitVector = mcrypt_create_iv($size, MCRYPT_RAND);
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing
(Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch).
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