Home >php教程 >php手册 >我也分享一个PHP加密解密的类

我也分享一个PHP加密解密的类

WBOY
WBOYOriginal
2016-06-06 19:35:521371browse

支持数组加密,密文有效期,各种对称加密 *@useption::en($string,$key); *@paramString$string需要加密的字串 *@paramString$skey密钥 *@paramint$expiry密文有效期,加密时候有效,单位秒,0为永久有效 *@returnString 无 /* * -工具库-加密解密码 * =========

支持 数组加密 , 密文有效期, 各种对称加密

  * @use ption::en($string, $key);
  * @param String $string 需要加密的字串
  * @param String $skey 密钥
  * @param int $expiry 密文有效期, 加密时候有效, 单位 秒,0 为永久有效
  * @return String
 /*
 * -工具库-加密解密码
 * ============================================================================
 * 版权所有: 优艾网络,并保留所有权利。
 * 网站地址: http://www.uicms.cn;
 * 邮箱 admin@uicms.net
 * ----------------------------------------------------------------------------
 * 这不是一个自由软件!您只能在不用于商业目的的前提下对程序代码进行修改和
 * 使用;不允许对程序代码以任何形式任何目的的再发布。若要二次开发或用于商业用途的,需要经过作者同意。
 * ============================================================================
*/
class ption
{
	
	private static $original = array('=', '+', '/');
	private static $later = array('O0O0O', 'o0O0o', 'oo00o');

	function __construct()
	{
		
	}
	
	private static function md5($skey = '')
	{
		$skey = $skey ? $skey : 'ui' ; //uicms::_config('security/authkey');		
		return md5(substr($skey, 0, 16));
	}
	
	/**
	* @use ption::en($string, $key);
	* @param String $string 需要加密的字串
	* @param String $skey 密钥
	* @param int $expiry 密文有效期, 加密时候有效, 单位 秒,0 为永久有效
	* @return String
	*/
	static public function en($string = '', $skey = '', $expiry=0)
	{		
		if( is_array( $string ) )
		{
			$string = json_encode($string); // uicms::json($string, true, 'en');
		}				
		$string = str_pad($expiry ? $expiry + TIME : 0, 10, 0).$string;		
		$strArr = str_split(base64_encode($string));
		$strCount = count($strArr);		
		$skey = static::md5($skey);		
		foreach (str_split($skey) as $key => $value)
		{
			$key < $strCount && $strArr[$key].=$value;
		}
		return str_replace(self::$original, self::$later, join('', $strArr));
	}
	
	/**
	* @use ption::de($string, $key);
	* @param String $string 需要解密的字串
	* @param String $skey 密钥
	* @return String
	*/
	static public function de($string = '', $skey = '')
	{		
		$strArr = str_split(str_replace(self::$later, self::$original, $string), 2);
		$strCount = count($strArr);
		$skey = static::md5($skey);
		foreach (str_split($skey) as $key => $value)
		{
			$key <= $strCount && $strArr[$key][1] === $value && $strArr[$key] = $strArr[$key][0];
		}		
		$result = base64_decode(join('', $strArr));			
		if(substr($result, 0, 10) == 0 || substr($result, 0, 10) - TIME > 0)
		{
			return substr($result, 10);
		}
		else
		{
			return false;
		}		
	}	
}
$str['username'] = 'oschina';
$str['pw'] = '123456';
$str['huoxin'] = '!@#$%^&';

echo "string : " . $str . " <br />";
echo "encode : " . ($enstring = ption::en($str)) . '<br />';
echo "decode : " . ption::de($enstring);
Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn