note 105985 added to function.mcrypt-decrypt

From: Date: Fri, 30 Sep 2011 07:34:06 +0000
Subject: note 105985 added to function.mcrypt-decrypt
Groups: php.notes 
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Caution, MCRYPT_RIJNDAEL_256 is not equivalent to AES_256. The way to make RIJNDAEL be decrypted from AES with openssl is to use MCRYPT_RIJNDAEL_128 and padd the string to encrypt before encrypting with the follwing function: function pkcs5_pad ($text, $blocksize) { $pad = $blocksize - (strlen($text) % $blocksize); return $text . str_repeat(chr($pad), $pad); } On the decryption, the choosing of AES_256 or AES_128, etc. is based on the keysize used in the crypting. In my case it was a 128bit key so I used AES_128. ---- Server IP: 69.147.83.197 Probable Submitter: 213.151.106.134 ---- Manual Page -- http://www.php.net/manual/en/function.mcrypt-decrypt.php Edit -- https://master.php.net/note/edit/105985 Del: integrated -- https://master.php.net/note/delete/105985/integrated Del: useless -- https://master.php.net/note/delete/105985/useless Del: bad code -- https://master.php.net/note/delete/105985/bad+code Del: spam -- https://master.php.net/note/delete/105985/spam Del: non-english -- https://master.php.net/note/delete/105985/non-english Del: in docs -- https://master.php.net/note/delete/105985/in+docs Del: other reasons-- https://master.php.net/note/delete/105985 Reject -- https://master.php.net/note/reject/105985 Search -- https://master.php.net/manage/user-notes.php

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