--TEST-- mcrypt_cbf --SKIPIF-- <?php if (!extension_loaded("mcrypt")) print "skip"; ?> --FILE-- <?php $key = "FooBar"; $secret = "PHP Testfest 2008"; $cipher = MCRYPT_RIJNDAEL_128; $iv = mcrypt_create_iv(mcrypt_get_iv_size($cipher, MCRYPT_MODE_ECB), MCRYPT_RAND); $enc_data = mcrypt_cfb($cipher, $key, $secret, MCRYPT_ENCRYPT, $iv); // we have to trim as AES rounds the blocks and decrypt doesnt detect that echo trim(mcrypt_cfb($cipher, $key, $enc_data, MCRYPT_DECRYPT, $iv)) . "\n"; // a warning must be issued if we don't use a IV on a AES cipher, that usually requires an IV mcrypt_cfb($cipher, $key, $enc_data, MCRYPT_DECRYPT); --EXPECTF-- PHP Testfest 2008 Warning: mcrypt_cfb(): Attempt to use an empty IV, which is NOT recommend in %s on line %d