<?php

namespace Leady\YeePay\YopSign;

class AESEncrypter
{

    /**
     * 算法,另外还有192和256两种长度
     */
    const CIPHER = MCRYPT_RIJNDAEL_128;
    /**
     * 模式
     */
    const MODE = 'AES-128-ECB';

    /**
     * 加密
     * @param  string  $str  需加密的字符串
     * @param  string  $key  密钥
     * @return type
     */

    static public function encode($str, $key)
    {

        return base64_encode(openssl_encrypt($str, self::MODE, base64_decode($key), OPENSSL_RAW_DATA));
    }

    /**
     * 解密
     * @param  type  $str
     * @param  type  $key
     * @return type
     */
    static public function decode($str, $key)
    {
        return openssl_decrypt(base64_decode($str), self::MODE, base64_decode($key), OPENSSL_RAW_DATA);
    }

}