70 lines
1.6 KiB
PHP
70 lines
1.6 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Auxiliary functions for cookie authentication
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*
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* @package PhpMyAdmin-Auth
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* @subpackage Cookie
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*/
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if (! defined('PHPMYADMIN')) {
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exit;
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}
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/* Get the Horde_Cipher_blowfish class */
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require_once './libraries/blowfish.php';
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/**
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* The HordeCipherBlowfishOperations provides encrypt and decrypt functions
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* using the Horde_Cipher_blowfish class
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*
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* @package PhpMyAdmin-Auth
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*/
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class HordeCipherBlowfishOperations
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{
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/**
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* Encryption using blowfish algorithm
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*
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* @param string $data original data
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* @param string $secret the secret
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*
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* @return string the encrypted result
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*/
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public static function blowfishEncrypt($data, $secret)
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{
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$pma_cipher = new Horde_Cipher_blowfish;
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$encrypt = '';
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$mod = strlen($data) % 8;
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if ($mod > 0) {
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$data .= str_repeat("\0", 8 - $mod);
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}
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foreach (str_split($data, 8) as $chunk) {
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$encrypt .= $pma_cipher->encryptBlock($chunk, $secret);
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}
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return base64_encode($encrypt);
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}
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/**
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* Decryption using blowfish algorithm
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*
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* @param string $encdata encrypted data
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* @param string $secret the secret
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*
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* @return string original data
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*/
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public static function blowfishDecrypt($encdata, $secret)
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{
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$pma_cipher = new Horde_Cipher_blowfish;
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$decrypt = '';
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$data = base64_decode($encdata);
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foreach (str_split($data, 8) as $chunk) {
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$decrypt .= $pma_cipher->decryptBlock($chunk, $secret);
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}
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return trim($decrypt);
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}
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}
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?>
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