工具型应用订购对接流程–订购消息解密

class Aes
{
    protected $encryptedMsg;  //加密消息
    protected $secret; //应用App Secret

    /**
     * Aes constructor.
     * @param $msg
     * @param $secret
     */
    public function __construct($msg, $secret)
    {
        $this->encryptedMsg = $msg;
        $this->secret = $secret;
    }

    /**
     * 阿里云产品优惠领取链接
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     * @return string
     */
    function AesDecrypt()
    {
        $key = preg_replace('#-#', '', $this->secret);

        return $this->decryptMsg($this->encryptedMsg, $key);
    }

    /**
     * @param $msg
     * @param $key
     * @return string
     */
    public function decryptMsg($msg, $key)
    {
        $msg = base64_decode($msg);
        $iv = substr($key, 0, 16);

        return openssl_decrypt($msg, 'AES256', $key, OPENSSL_RAW_DATA, $iv);
    }

注意： 如果PHP缺少扩展OpenSSL或者其他扩展需要自行安装