PHP implements symmetric encryption and decryption-PHP Tutorial-php.cn

PHP implements symmetric encryption and decryption

墨辰丷

Release： 2023-03-26 14:48:01

Original

3041 people have browsed it

This article mainly introduces the simple symmetric encryption and decryption methods implemented by PHP. It summarizes the common PHP symmetric encryption and decryption operation methods in the form of examples. Friends in need can refer to the following

The examples in this article describe Simple symmetric encryption and decryption method implemented in PHP. Share it with everyone for your reference, the details are as follows:

Method 1: YII’s own encryption method

/**
* 加密
* @var string [要加密的值]
*/
$secretKey = "wwj";
$data = $res[&#39;u_id&#39;];
$encryptedData = Yii::$app->getSecurity()->encryptByPassword($data, $secretKey);

Copy after login

/**
* 解密
* @var [type] [加密前的值]
*/
$aid = $req->get(&#39;uid&#39;);
$secretKey = "wwj";
$uid = Yii::$app->getSecurity()->decryptByPassword($aid,$secretKey);

Copy after login

Method 2:

/**
 * 安全URL编码
 * @param type $data
 * @return type
 */
function encode($data) {
 return str_replace(array(&#39;+&#39;, &#39;/&#39;, &#39;=&#39;), array(&#39;-&#39;, &#39;_&#39;, &#39;&#39;), base64_encode(serialize($data)));
}
/**
* 安全URL解码
* @param type $string
* @return type
*/
function decode($string) {
 $data = str_replace(array(&#39;-&#39;, &#39;_&#39;), array(&#39;+&#39;, &#39;/&#39;), $string);
 $mod4 = strlen($data) % 4;
 ($mod4) && $data .= substr(&#39;====&#39;, $mod4);
 return unserialize(base64_decode($data));
}

Copy after login

Method 3:

/**
* 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)));
}

Copy after login

Method 4:

/**
* 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 = &#39;&#39;, $skey = &#39;cxphp&#39;)
{
  $strArr = str_split(base64_encode($string));
  $strCount = count($strArr);
  foreach (str_split($skey) as $key => $value)
  $key < $strCount && $strArr[$key].=$value;
  return str_replace(array(&#39;=&#39;, &#39;+&#39;, &#39;/&#39;), array(&#39;O0O0O&#39;, &#39;o000o&#39;, &#39;oo00o&#39;), join(&#39;&#39;, $strArr));
}

Copy after login

/**
* 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 = &#39;&#39;, $skey = &#39;cxphp&#39;)
{
  $strArr = str_split(str_replace(array(&#39;O0O0O&#39;, &#39;o000o&#39;, &#39;oo00o&#39;), array(&#39;=&#39;, &#39;+&#39;, &#39;/&#39;), $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(&#39;&#39;, $strArr));
}

Copy after login

Related recommendations:

PHP symmetric encryption function implements data encryption and decryption

php symmetric encryption algorithm (DES/AES) class code

php symmetric encryption algorithm example_PHP tutorial

The above is the detailed content of PHP implements symmetric encryption and decryption. For more information, please follow other related articles on the PHP Chinese website!