46 lines
1.1 KiB
PHP
46 lines
1.1 KiB
PHP
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<?php
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namespace Helpers;
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class MCrypt
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{
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function __construct()
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{
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$this->config = \Zend_Registry::get('config');
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}
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static function encrypt($decrypted, $password, $salt='!kQm*fF3pXe1Kbm%9') {
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$key = hash('SHA256', $salt . $password, true);
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srand();
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$iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC), MCRYPT_RAND);
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if (strlen($iv_base64 = rtrim(base64_encode($iv), '=')) != 22) return false;
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$encrypted = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $decrypted . md5($decrypted), MCRYPT_MODE_CBC, $iv));
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return $iv_base64 . $encrypted;
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}
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static function decrypt($encrypted, $password, $salt='!kQm*fF3pXe1Kbm%9') {
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$key = hash('SHA256', $salt . $password, true);
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$iv = base64_decode(substr($encrypted, 0, 22) . '==');
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$encrypted = substr($encrypted, 22);
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$decrypted = rtrim(mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, base64_decode($encrypted), MCRYPT_MODE_CBC, $iv), "\0\4");
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$hash = substr($decrypted, -32);
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$decrypted = substr($decrypted, 0, -32);
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if (md5($decrypted) != $hash) return false;
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return $decrypted;
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}
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}
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