本文实例讲述了PHP实现的简单对称加密与解密方法。分享给大家供大家参考,具体如下:
方法一:YII自带的加密方法
/** * 加密 * @var string [要加密的值] */ $secretKey = "wwj"; $data = $res['u_id']; $encryptedData = Yii::$app->getSecurity()->encryptByPassword($data, $secretKey);
/** * 解密 * @var [type] [加密前的值] */ $aid = $req->get('uid'); $secretKey = "wwj"; $uid = Yii::$app->getSecurity()->decryptByPassword($aid,$secretKey);
方法二:
/** * 安全URL编码 * @param type $data * @return type */ function encode($data) { return str_replace(array('+', '/', '='), array('-', '_', ''), base64_encode(serialize($data))); } /** * 安全URL解码 * @param type $string * @return type */ function decode($string) { $data = str_replace(array('-', '_'), array('+', '/'), $string); $mod4 = strlen($data) % 4; ($mod4) && $data .= substr('====', $mod4); return unserialize(base64_decode($data)); }
方法三:
/** * 加密 * @param [type] $code [description] * @return [type] [description] */ public static function encrypt($code) { return urlencode(base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, md5("key"), $code, MCRYPT_MODE_ECB, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND)))); } /** * 解密 * @param [type] $code [description] * @return [type] [description] */ public static function decrypt($code) { return urldecode(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, md5("key"), base64_decode($code), MCRYPT_MODE_ECB, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND))); }
方法四:
/** * 简单对称加密 * @param string $string [需要加密的字符串] * @param string $skey [加密的key] * @return [type] [加密后] */ function encode($string = '', $skey = 'cxphp') { $strArr = str_split(base64_encode($string)); $strCount = count($strArr); foreach (str_split($skey) as $key => $value) $key < $strCount && $strArr[$key].=$value; return str_replace(array('=', '+', '/'), array('O0O0O', 'o000o', 'oo00o'), join('', $strArr)); }
/** * 简单对称解密 * @param string $string [加密后的值] * @param string $skey [加密的key] * @return [type] [加密前的字符串] */ function decode($string = '', $skey = 'cxphp') { $strArr = str_split(str_replace(array('O0O0O', 'o000o', 'oo00o'), array('=', '+', '/'), $string), 2); $strCount = count($strArr); foreach (str_split($skey) as $key => $value) $key <= $strCount && isset($strArr[$key]) && $strArr[$key][1] === $value && $strArr[$key] = $strArr[$key][0]; return base64_decode(join('', $strArr)); }
PS:关于加密解密感兴趣的朋友还可以参考本站在线工具:
文字在线加密解密工具(包含AES、DES、RC4等):
http://tools.maopiaopiao.com/password/txt_encode
MD5在线加密工具:
http://tools.maopiaopiao.com/password/CreateMD5Password
在线散列/哈希算法加密工具:
http://tools.maopiaopiao.com/password/hash_encrypt
在线MD5/hash/SHA-1/SHA-2/SHA-256/SHA-512/SHA-3/RIPEMD-160加密工具:
http://tools.maopiaopiao.com/password/hash_md5_sha
在线sha1/sha224/sha256/sha384/sha512加密工具:
http://tools.maopiaopiao.com/password/sha_encode
希望本文所述对大家PHP程序设计有所帮助。