今天写了一个php的aes加密类。适用于yii的扩展。
如果不用在yii框架中，把代码中yii::app()->params['encryptkey'] 换成你对应的默认key就可以了。
类代码:
params['encryptkey'] : $key, 0, mcrypt_enc_get_key_size($module)); /* create the iv and determine the keysize length, use mcrypt_rand * on windows instead */ $iv = substr(md5($key),0,mcrypt_enc_get_iv_size($module)); /* intialize encryption */ mcrypt_generic_init($module, $key, $iv); /* encrypt data */ $encrypted = mcrypt_generic($module, $plaintext); /* terminate encryption handler */ mcrypt_generic_deinit($module); mcrypt_module_close($module); return base64_encode($encrypted); } /** * this was aes-128 / cbc / nopadding decrypted. * @author terry * @param string $encrypted base64_encode encrypted string * @param string $key * @throws cexception * @return string */ public static function aesdecrypt($encrypted, $key = null) { if ($encrypted == '') return ''; if(!extension_loaded('mcrypt')) throw new cexception(yii::t('yii','aesdecrypt requires php mcrypt extension to be loaded in order to use data encryption feature.')); $ciphertext_dec = base64_decode($encrypted); $module = mcrypt_module_open(mcrypt_rijndael_128, '', mcrypt_mode_cbc, ''); $key=self::substr($key===null ? yii::app()->params['encryptkey'] : $key, 0, mcrypt_enc_get_key_size($module)); $iv = substr(md5($key),0,mcrypt_enc_get_iv_size($module)); /* initialize encryption module for decryption */ mcrypt_generic_init($module, $key, $iv); /* decrypt encrypted string */ $decrypted = mdecrypt_generic($module, $ciphertext_dec); /* terminate decryption handle and close module */ mcrypt_generic_deinit($module); mcrypt_module_close($module); return rtrim($decrypted,\0); } /** * returns the length of the given string. * if available uses the multibyte string function mb_strlen. * @param string $string the string being measured for length * @return integer the length of the string */ private static function strlen($string) { return extension_loaded('mbstring') ? mb_strlen($string,'8bit') : strlen($string); } /** * returns the portion of string specified by the start and length parameters. * if available uses the multibyte string function mb_substr * @param string $string the input string. must be one character or longer. * @param integer $start the starting position * @param integer $length the desired portion length * @return string the extracted part of string, or false on failure or an empty string. */ private static function substr($string,$start,$length) { return extension_loaded('mbstring') ? mb_substr($string,$start,$length,'8bit') : substr($string,$start,$length); }}
http://www.bkjia.com/phpjc/825418.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/825418.htmltecharticle今天写了一个php的aes加密类。适用于yii的扩展。 如果不用在yii框架中，把代码中yii::app()-params['encryptkey'] 换成你对应的默认key就可以了。...