签名方法

{
    'Action' : 'DescribeInstances',
    'InstanceIds.0' : 'ins-09dx96dg',
    'Limit' : 20,
    'Nonce' : 11886,
    'Offset' : 0,
    'Region' : 'ap-guangzhou',
    'SecretId' : 'AKIDz8krbsJ5yKBZQpn74WFkmLPx3*******',
    'Timestamp' : 1465185768,
    'Version': '2017-03-12',
}

Action=DescribeInstances&InstanceIds.0=ins-09dx96dg&Limit=20&Nonce=11886&Offset=0&Region=ap-guangzhou&SecretId=AKIDz8krbsJ5yKBZQpn74WFkmLPx3*******&Timestamp=1465185768&Version=2017-03-12

GETcvm.tencentcloudapi.com/?Action=DescribeInstances&InstanceIds.0=ins-09dx96dg&Limit=20&Nonce=11886&Offset=0&Region=ap-guangzhou&SecretId=AKIDz8krbsJ5yKBZQpn74WFkmLPx3*******&Timestamp=1465185768&Version=2017-03-12

$secretKey = 'Gu5t9xGARNpq86cd98joQYCN3*******';
$srcStr = 'GETcvm.tencentcloudapi.com/?Action=DescribeInstances&InstanceIds.0=ins-09dx96dg&Limit=20&Nonce=11886&Offset=0&Region=ap-guangzhou&SecretId=AKIDz8krbsJ5yKBZQpn74WFkmLPx3*******&Timestamp=1465185768&Version=2017-03-12';
$signStr = base64_encode(hash_hmac('sha1', $srcStr, $secretKey, true));
echo $signStr;

zmmjn35mikh6pM3V7sUEuX4wyYM=

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.Random;
import java.util.TreeMap;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.bind.DatatypeConverter;

public class TencentCloudAPIDemo {
    private final static String CHARSET = "UTF-8";

    public static String sign(String s, String key, String method) throws Exception {
        Mac mac = Mac.getInstance(method);
        SecretKeySpec secretKeySpec = new SecretKeySpec(key.getBytes(CHARSET), mac.getAlgorithm());
        mac.init(secretKeySpec);
        byte[] hash = mac.doFinal(s.getBytes(CHARSET));
        return DatatypeConverter.printBase64Binary(hash);
    }

    public static String getStringToSign(TreeMap<String, Object> params) {
        StringBuilder s2s = new StringBuilder("GETcvm.tencentcloudapi.com/?");
        // 签名时要求对参数进行字典排序，此处用TreeMap保证顺序
        for (String k : params.keySet()) {
            s2s.append(k).append("=").append(params.get(k).toString()).append("&");
        }
        return s2s.toString().substring(0, s2s.length() - 1);
    }

    public static String getUrl(TreeMap<String, Object> params) throws UnsupportedEncodingException {
        StringBuilder url = new StringBuilder("https://cvm.tencentcloudapi.com/?");
        // 实际请求的url中对参数顺序没有要求
        for (String k : params.keySet()) {
            // 需要对请求串进行urlencode，由于key都是英文字母，故此处仅对其value进行urlencode
            url.append(k).append("=").append(URLEncoder.encode(params.get(k).toString(), CHARSET)).append("&");
        }
        return url.toString().substring(0, url.length() - 1);
    }

    public static void main(String[] args) throws Exception {
        TreeMap<String, Object> params = new TreeMap<String, Object>(); // TreeMap可以自动排序
        // 实际调用时应当使用随机数，例如：params.put("Nonce", new Random().nextInt(java.lang.Integer.MAX_VALUE));
        params.put("Nonce", 11886); // 公共参数
        // 实际调用时应当使用系统当前时间，例如：   params.put("Timestamp", System.currentTimeMillis() / 1000);
        params.put("Timestamp", 1465185768); // 公共参数
        params.put("SecretId", "AKIDz8krbsJ5yKBZQpn74WFkmLPx3*******"); // 公共参数
        params.put("Action", "DescribeInstances"); // 公共参数
        params.put("Version", "2017-03-12"); // 公共参数
        params.put("Region", "ap-guangzhou"); // 公共参数
        params.put("Limit", 20); // 业务参数
        params.put("Offset", 0); // 业务参数
        params.put("InstanceIds.0", "ins-09dx96dg"); // 业务参数
        params.put("Signature", sign(getStringToSign(params), "Gu5t9xGARNpq86cd98joQYCN3*******", "HmacSHA1")); // 公共参数
        System.out.println(getUrl(params));
    }
}

package main

import (
    "bytes"
    "crypto/hmac"
    "crypto/sha1"
    "encoding/base64"
    "fmt"
    "sort"
    "strconv"
)

func main() {
    secretId := "AKIDz8krbsJ5yKBZQpn74WFkmLPx3*******"
    secretKey := "Gu5t9xGARNpq86cd98joQYCN3*******"
    params := map[string]string{
        "Nonce":         "11886",
        "Timestamp":     strconv.Itoa(1465185768),
        "Region":        "ap-guangzhou",
        "SecretId":      secretId,
        "Version":       "2017-03-12",
        "Action":        "DescribeInstances",
        "InstanceIds.0": "ins-09dx96dg",
        "Limit":         strconv.Itoa(20),
        "Offset":        strconv.Itoa(0),
    }

    var buf bytes.Buffer
    buf.WriteString("GET")
    buf.WriteString("cvm.tencentcloudapi.com")
    buf.WriteString("/")
    buf.WriteString("?")

    // sort keys by ascii asc order
    keys := make([]string, 0, len(params))
    for k, _ := range params {
        keys = append(keys, k)
    }
    sort.Strings(keys)

    for i := range keys {
        k := keys[i]
        buf.WriteString(k)
        buf.WriteString("=")
        buf.WriteString(params[k])
        buf.WriteString("&")
    }
    buf.Truncate(buf.Len() - 1)

    hashed := hmac.New(sha1.New, []byte(secretKey))
    hashed.Write(buf.Bytes())

    fmt.Println(base64.StdEncoding.EncodeToString(hashed.Sum(nil)))
}

<?php
$secretId = "AKIDz8krbsJ5yKBZQpn74WFkmLPx3*******";
$secretKey = "Gu5t9xGARNpq86cd98joQYCN3*******";
$param["Nonce"] = 11886;//rand();
$param["Timestamp"] = 1465185768;//time();
$param["Region"] = "ap-guangzhou";
$param["SecretId"] = $secretId;
$param["Version"] = "2017-03-12";
$param["Action"] = "DescribeInstances";
$param["InstanceIds.0"] = "ins-09dx96dg";
$param["Limit"] = 20;
$param["Offset"] = 0;

ksort($param);

$signStr = "GETcvm.tencentcloudapi.com/?";
foreach ( $param as $key => $value ) {
    $signStr = $signStr . $key . "=" . $value . "&";
}
$signStr = substr($signStr, 0, -1);

$signature = base64_encode(hash_hmac("sha1", $signStr, $secretKey, true));
echo $signature.PHP_EOL;
// need to install and enable curl extension in php.ini
// $param["Signature"] = $signature;
// $url = "https://cvm.tencentcloudapi.com/?".http_build_query($param);
// echo $url.PHP_EOL;
// $ch = curl_init();
// curl_setopt($ch, CURLOPT_URL, $url);
// $output = curl_exec($ch);
// curl_close($ch);
// echo json_decode($output);

# -*- coding: UTF-8 -*-
# require ruby>=2.3.0
require 'time'
require 'openssl'
require 'base64'

secret_id = "AKIDz8krbsJ5yKBZQpn74WFkmLPx3*******"
secret_key = "Gu5t9xGARNpq86cd98joQYCN3*******"

method = 'GET'
endpoint = 'cvm.tencentcloudapi.com'
data = {
  'Action' => 'DescribeInstances',
  'InstanceIds.0' => 'ins-09dx96dg',
  'Limit' => 20,
  'Nonce' => 11886,
  'Offset' => 0,
  'Region' => 'ap-guangzhou',
  'SecretId' => secret_id,
  'Timestamp' => 1465185768, # Time.now.to_i
  'Version' => '2017-03-12',
}
sign = method + endpoint + '/?'
params = []
data.sort.each do |item|
  params << "#{item[0]}=#{item[1]}"
end
sign += params.join('&')
digest = OpenSSL::Digest.new('sha1')
data['Signature'] = Base64.encode64(OpenSSL::HMAC.digest(digest, secret_key, sign))
puts data['Signature']

# require 'net/http'
# uri = URI('https://' + endpoint)
# uri.query = URI.encode_www_form(data)
# p uri
# res = Net::HTTP.get_response(uri)
# puts res.body

using System;
using System.Collections.Generic;
using System.Net;
using System.Security.Cryptography;
using System.Text;

public class Application {
    public static string Sign(string signKey, string secret)
    {
        string signRet = string.Empty;
            using (HMACSHA1 mac = new HMACSHA1(Encoding.UTF8.GetBytes(signKey)))
            {
                byte[] hash = mac.ComputeHash(Encoding.UTF8.GetBytes(secret));
                signRet = Convert.ToBase64String(hash);
            }
        return signRet;
    }
    public static string MakeSignPlainText(SortedDictionary<string, string> requestParams, string requestMethod, string requestHost, string requestPath)
    {
        string retStr = "";
        retStr += requestMethod;
        retStr += requestHost;
        retStr += requestPath;
        retStr += "?";
        string v = "";
        foreach (string key in requestParams.Keys)
        {
            v += string.Format("{0}={1}&", key, requestParams[key]);
        }
        retStr += v.TrimEnd('&');
        return retStr;
    }

    public static void Main(string[] args)
    {
        // 密钥参数
        string SECRET_ID = "AKIDz8krbsJ5yKBZQpn74WFkmLPx3*******";
        string SECRET_KEY = "Gu5t9xGARNpq86cd98joQYCN3*******";

        string endpoint = "cvm.tencentcloudapi.com";
        string region = "ap-guangzhou";
        string action = "DescribeInstances";
        string version = "2017-03-12";
        double RequestTimestamp = 1465185768;  // 时间戳 2019-02-26 00:44:25,此参数作为示例，以实际为准
        // long timestamp = ToTimestamp() / 1000;
        // string requestTimestamp = timestamp.ToString();
        Dictionary<string, string> param = new Dictionary<string, string>();
        param.Add("Limit", "20");
        param.Add("Offset", "0");
        param.Add("InstanceIds.0", "ins-09dx96dg");
        param.Add("Action", action);
        param.Add("Nonce", "11886");
        // param.Add("Nonce", Math.Abs(new Random().Next()).ToString());

        param.Add("Timestamp", RequestTimestamp.ToString());
        param.Add("Version", version);

        param.Add("SecretId", SECRET_ID);
        param.Add("Region", region);
        SortedDictionary<string, string> headers = new SortedDictionary<string, string>(param, StringComparer.Ordinal);
        string sigInParam = MakeSignPlainText(headers, "GET", endpoint, "/");
        string sigOutParam = Sign(SECRET_KEY, sigInParam);
        Console.WriteLine(sigOutParam);
    }
}