xmpp digest-md5 算法 go版本

/*

服务端发送：

<challenge xmlns="urn:ietf:params:xml:ns:xmpp-sasl">bm9uY2U9IjEyOTE2MjcyODIwOTg3MTg0MzYzIixxb3A9ImF1dGgiLGNoYXJzZXQ9dXRmLTgsYWxnb3JpdGhtPW1kNS1zZXNz</challenge>

其中bm9uY2U9IjEyOTE2MjcyODIwOTg3MTg0MzYzIixxb3A9ImF1dGgiLGNoYXJzZXQ9dXRmLTgsYWxnb3JpdGhtPW1kNS1zZXNz   base64解码后是：

nonce="12916272820987184363",qop="auth",charset=utf-8,algorithm=md5-sess

*/

/*

客户端响应：

<response xmlns="urn:ietf:params:xml:ns:xmpp-sasl">dXNlcm5hbWU9ImFhYWFhYSIsbm9uY2U9IjEyOTE2MjcyODIwOTg3MTg0MzYzIixjbm9uY2U9IkM2QUMvS1ZycWxaUFNLa3RmdmJXUWJvbTBSdUtTYXZXVHFuSzhPNzJYS3M9IixuYz0wMDAwMDAwMSxkaWdlc3QtdXJpPSJ4bXBwLzExMi43NC42Ny45MiIscW9wPWF1dGgscmVzcG9uc2U9MDc4NDNkZjNlMTQ0ZWRhOTY1ZjUzNWQzMzEyZTJhNzgsY2hhcnNldD11dGYtOA==</response>

base64解码：

username="aaaaaa",nonce="12916272820987184363",cnonce="C6AC/KVrqlZPSKktfvbWQbom0RuKSavWTqnK8O72XKs=",nc=00000001,digest-uri="xmpp/112.74.67.92",qop=auth,response=07843df3e144eda965f535d3312e2a78,charset=utf-8

username是用户名

nonce是上面服务端发过来的nonce

conce是客户端随机字串

nc  是8位长的16进制数字符串,统计客户端使用nonce发出请求的次数(包含当前请求),例示我们可以设为”00000001”, 

digest-uri=“xmpp/hostname”

qop=auth

response 按下面的算法response（）计算

*/

 package main

import "fmt"
import "crypto/md5"
import "encoding/hex"


func main() {

  response()
   
}




func strMd5(x string) string {
h := md5.New()
     h.Write([]byte(x)) // 需要加密的字符串为 sharejs.com
    return hex.EncodeToString(h.Sum(nil)) // 输出加密结果
}


func response() {
    User :=  "aaaaaa" 
         A2Prefix:= "AUTHENTICATE"
 Passwd:= "111111"
    Realm := ""
    CNonce := "C6AC/KVrqlZPSKktfvbWQbom0RuKSavWTqnK8O72XKs="
Nonce:= "12916272820987184363"


    DigestURI := "xmpp/112.74.67.92"
    NC := "00000001"
    QOP := "auth"


     h := md5.New()
     h.Write([]byte(User+":"+Realm+":"+Passwd))
    MD5Hash := string(h.Sum(nil))




    A1 := MD5Hash + ":"+ Nonce+ ":"+CNonce 
    A2 := A2Prefix+":"+ DigestURI 
    T := strMd5(A1) + ":" + Nonce + ":"+NC+":"+ CNonce+":"+ QOP+ ":"+strMd5(A2)
    fmt.Print(strMd5(T)+"\n")







}