cookie加密~

cookie加密~

<?php
class Cookie
{
	/**
	 * 解密已经加密了的cookie
	 * 
	 * @param string $encryptedText
	 * @return string
	 */
	private static function _decrypt($encryptedText)
	{
		$key = Config::get(&#39;secret_key&#39;);
		$cryptText = base64_decode($encryptedText);
		$ivSize = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
		$iv = mcrypt_create_iv($ivSize, MCRYPT_RAND);
		$decryptText = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $cryptText, MCRYPT_MODE_ECB, $iv);
		return trim($decryptText);
	}

	/**
	 * 加密cookie
	 *
	 * @param string $plainText
	 * @return string
	 */
	private static function _encrypt($plainText)
	{
		$key = Config::get(&#39;secret_key&#39;);
		$ivSize = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
		$iv = mcrypt_create_iv($ivSize, MCRYPT_RAND);
		$encryptText = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $plainText, MCRYPT_MODE_ECB, $iv);
		return trim(base64_encode($encryptText));
	}
	
	/**
	 * 删除cookie
	 * 
	 * @param array $args
	 * @return boolean
	 */
	public static function del($args)
	{
		$name = $args[&#39;name&#39;];
		$domain = isset($args[&#39;domain&#39;]) ? $args[&#39;domain&#39;] : null;
		return isset($_COOKIE[$name]) ? setcookie($name, &#39;&#39;, time() - 86400, &#39;/&#39;, $domain) : true;
	}
	
	/**
	 * 得到指定cookie的值
	 * 
	 * @param string $name
	 */
	public static function get($name)
	{
		return isset($_COOKIE[$name]) ? self::_decrypt($_COOKIE[$name]) : null;
	}
	
	/**
	 * 设置cookie
	 *
	 * @param array $args
	 * @return boolean
	 */
	public static function set($args)
	{
		$name = $args[&#39;name&#39;];
		$value= self::_encrypt($args[&#39;value&#39;]);
		$expire = isset($args[&#39;expire&#39;]) ? $args[&#39;expire&#39;] : null;
		$path = isset($args[&#39;path&#39;]) ? $args[&#39;path&#39;] : &#39;/&#39;;
		$domain = isset($args[&#39;domain&#39;]) ? $args[&#39;domain&#39;] : null;
		$secure = isset($args[&#39;secure&#39;]) ? $args[&#39;secure&#39;] : 0;
		return setcookie($name, $value, $expire, $path, $domain, $secure);
	}
}

 以上就是cookie加密~的内容，更多相关内容请关注PHP中文网（www.php.cn）！