note 90938 added to function.mcrypt-cbc

The following code is to encrypt-->encode decode-->decrypt <?php $stuff="String to enc/enc/dec/dec =,=,"; $key="XiTo74dOO09N48YeUmuvbL0E"; function nl() { echo "<br/> \n"; } $iv = mcrypt_create_iv (mcrypt_get_block_size (MCRYPT_TripleDES, MCRYPT_MODE_CBC), MCRYPT_DEV_RANDOM); // Encrypting function encrypt($string, $key) { $enc = ""; global $iv; $enc=mcrypt_cbc (MCRYPT_TripleDES, $key, $string, MCRYPT_ENCRYPT, $iv); return base64_encode($enc); } // Decrypting function decrypt($string, $key) { $dec = ""; $string = trim(base64_decode($string)); global $iv; $dec = mcrypt_cbc (MCRYPT_TripleDES, $key, $string, MCRYPT_DECRYPT, $iv); return $dec; } $encrypted = encrypt($stuff, $key); $decrypted = decrypt($encrypted, $key); echo "Encrypted is ".$encrypted . nl(); echo "Decrypted is ".$decrypted . nl(); ?> Notes on the result -o running the script from the command line 1 time php script.php works correct -o if i ran the script in a loop i.e. #!/bin/bash for x in seq 100 do echo $x php script.php >> LOG.text sleep 1 done it gets slower after the 10th time + inconsistent output sometimes correct some with encrypted characters at the end of the decrypted string -o Firefox on Linux it decrypts to the original string but appends some encryption at the end of the decrypted sting -o running the script on the browser from windows on Firefox, Google Chrome, IE7 works fine for just few times "refresh every few seconds" if refresh fast it doesn't work correctly, some times returns the decrypted as encrypted! some times returns mix of encrypted & decrypted I thought if sharing that test for those functions might be useful for some body ---- Server IP: 72.55.140.6 Probable Submitter: 99.254.176.172 ---- Manual Page -- http://www.php.net/manual/en/function.mcrypt-cbc.php Edit -- https://master.php.net/note/edit/90938 Del: integrated -- https://master.php.net/note/delete/90938/integrated Del: useless -- https://master.php.net/note/delete/90938/useless Del: bad code -- https://master.php.net/note/delete/90938/bad+code Del: spam -- https://master.php.net/note/delete/90938/spam Del: non-english -- https://master.php.net/note/delete/90938/non-english Del: in docs -- https://master.php.net/note/delete/90938/in+docs Del: other reasons-- https://master.php.net/note/delete/90938 Reject -- https://master.php.net/note/reject/90938 Search -- https://master.php.net/manage/user-notes.php