请教一下关于阿里云API签名问题

尝试了几种签名办法 CDSN上面找了两种 官方Demo RpcAcsRequest

使用官方文档中
https://help.aliyun.com/document_detail/50286.html?spm=5176.doc50284.6.656.dnoXKs
的参数

        'Format' => 'XML',
        'Version' => '2016-11-01',
        'SignatureMethod' => 'HMAC-SHA1',
        'SignatureNonce' => '93452c33-2158-4be6-af42-f5f283cb00a5',
        'SignatureVersion' => '1.0',
        'AccessKeyId' => $accesskey,
        'Timestamp' => '2017-11-21T07:49:58Z',
        'Action' => 'DescribeLiveStreamsPublishList',
        'DomainName' => 'zhibo.g9999.cn',
        'StartTime'=>'2017-11-17T19:00:00Z',
        'EndTime'=>'2017-11-21T07:00:00Z',

计算出来的结果一致

但是自己访问接口就各种SignatureDoesNotMatch

求指点