京东云视频处理签名认证
https://docs.jdcloud.com/cn/object-storage-service/user-signature-authentication
用户可以在HTTP请求中增加 Authorization 的Header来包含签名（Signature）信息，表明这个消息已被授权。
Authorization字段计算的方法
Authorization ="jingdong" + " " + AccessKey + ":" + Signature;
Signature =base64(HMAC-SHA1(AccessKeySecret, UTF-8-Encoding-Of( StringToSign ) ) )
StringToSign =HTTP-Verb + "\n"
+ Content-MD5 + "\n"
+ Content-Type + "\n"
+ Date + "\n"
+ CanonicalizedHeaders
+ CanonicalizedResource;
计算签名头规则
- 签名的字符串必须为UTF-8格式
- 签名的方法用RFC 2104中定义的HMAC-SHA1方法
- Content-Type 和 Content-MD5 在请求中不是必须的，但是如果请求需要签名验证，空值的话以空字符串代替
代码实现
func CalAuthorization() string {
GMT_Time := "Thu, 27 Jun 2019 13:14:30 GMT"
AccessKey := "你的AccessKey"
AccessKeySecret := "你的AccessKeySecret"
StringToSign := "PUT\n" +
""+"\n" +
"napplication/json\n" +
GMT_Time + "\n" +
"/public-test/test.mp4"
//mac-sha1
key := []byte(AccessKeySecret)
mac := hmac.New(sha1.New, key)
mac.Write([]byte(StringToSign))
//base64
Signature := base64.StdEncoding.EncodeToString(mac.Sum(nil))
Authorization := "jingdong" + " " + AccessKey + ":" + Signature
return Authorization
}
