腾讯云API 生成Authentication Header加密字符串 C#代码示例

最近对接腾讯云的API,需要用C#生成Authentication Header的加密字符串,搜索引擎上找不到例子,自己摸索遇到了不少问题,为方便大家现在放出来,都是测试性的代码,逻辑是正确的,如果用于生产环境,你自己优化封装:

 var source=GetKeyValueString();
var signature = HMACSha1Bytes(source, _SecretKey);
var authorizationValue = System.Convert.ToBase64String(signature.Concat(Encoding.UTF8.GetBytes(source)).ToArray());

static byte[] HMACSha1Bytes(String data, String key)
        {
            HMACSHA1 hmacsha1 = new HMACSHA1();
            hmacsha1.Key = Encoding.UTF8.GetBytes(key);
            byte[] dataBuffer = Encoding.UTF8.GetBytes(data);
            byte[] hashBytes = hmacsha1.ComputeHash(dataBuffer);
            return hashBytes;
        }

 static String GetKeyValueString()
        {
            var e = ToUnixTime(DateTime.Now.AddMinutes(10));//可重用的
            //var e = 0;//仅一次可用
            var t = ToUnixTime(DateTime.Now);
            var r = new Random().Next(100,1000000);
            return "a=" + _AppId + "&b=" + _bucket + "&k=" + _SecretId + "&e=" + e.ToString() + "&t=" + t + "&r=" + r.ToString() + "&u=0&f=";
        }
public static long ToUnixTime( DateTime date)
        {
            var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
            return System.Convert.ToInt64((date - epoch).TotalSeconds);
        }

  

posted @ 2017-10-26 08:45  路生  阅读(425)  评论(0编辑  收藏  举报