签名

签名代码示例

data 字段内容

java

// 生成签名字符串
private static String getSign(Map<String, String> data)
{
    // 获取关键字列表
    List<String> keys = new ArrayList<>(data.keySet());
    // 关键字列表排序
    keys.sort(Comparator.naturalOrder());
    StringBuilder sb = new StringBuilder();
    for (String key : keys)
    {
        // 取各个字段内容拼接字符串
        sb.append(data.get(key));
    }
    // 加上双方约定随机字符串
    String txt = sb.toString() + nonce;

    // 计算哈希值
    return getMD5(txt);
}

// md5加密
private static String getMD5(String password) {
    MessageDigest md5 = null;
    try {
        md5 = MessageDigest.getInstance("MD5");
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    byte[] byteArray = password.getBytes(StandardCharsets.UTF_8);

    byte[] md5Bytes = md5.digest(byteArray);
    StringBuilder hexValue = new StringBuilder();
    for (byte md5Byte : md5Bytes) {
        int val = ((int) md5Byte) & 0xff;
        if (val < 16) {
            hexValue.append("0");
        }

        hexValue.append(Integer.toHexString(val));
    }
    return hexValue.toString();
}

php

function getSign(array $datas)
{
    // 按关键字排序
    ksort($datas);
​
    $tmp = "";
​
    foreach ($datas as $key => $value) {
        // 取各个字段内容拼接字符串
        $tmp .= $value;
    }
​
    // 加上双方约定随机字符串
    global $nonce;
    $tmp .= $nonce;
​
    // 计算哈希值
    return md5($tmp);
}
​

c#

    private static string getSign(Dictionary<string, string> data)
    {
        // 获取关键字列表
        List<string> keys = new List<string>();
        foreach (string key in data.Keys)
        {
            keys.Add(key);
        }
        // 关键字列表排序
        keys.Sort();
        StringBuilder sb = new StringBuilder();
        foreach (string key in keys)
        {
            // 取各个字段内容拼接字符串
            sb.Append(data[key]);
        }
        // 加上双方约定随机字符串
        string txt = sb.ToString() + nonce;
​
        // 计算哈希值
        return getMD5(txt);
    }
​
    // md5加密
    private static string getMD5(string txt)
    {
        using (MD5 mi = MD5.Create())
        {
            byte[] buffer = Encoding.ASCII.GetBytes(txt);
            //开始加密
            byte[] newBuffer = mi.ComputeHash(buffer);
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < newBuffer.Length; i++)
            {
                sb.Append(newBuffer[i].ToString("x2"));
            }
            return sb.ToString();
        }
    }

python

def getSign(data):
    # 按关键字排序
    items = sorted(data.items())
​
    # 取各个字段内容拼接字符串，加上双方约定随机字符串
    values = [str(v) for (k, v) in items]
    strData = ''.join(values) + nonce
    # 计算哈希值
    return hashlib.md5(strData.encode(encoding='UTF-8')).hexdigest()

验签示例

java

    private boolean checkSign(String response_content, String timestamp, String sign) {
        // 随机字符串 后台获取
        String nonce = "XOfX547SeCIlhufeeBBwgZINx";
        String buf = response_content + timestamp + nonce;
        String encode = getMD5(buf);
        return encode.equals(sign);
    }
​
    private String getMD5(String password) {
        MessageDigest md5 = null;
        try {
            md5 = MessageDigest.getInstance("MD5");
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        byte[] byteArray = password.getBytes(StandardCharsets.UTF_8);
​
        byte[] md5Bytes = md5.digest(byteArray);
        StringBuilder hexValue = new StringBuilder();
        for (byte md5Byte : md5Bytes) {
            int val = ((int) md5Byte) & 0xff;
            if (val < 16) {
                hexValue.append("0");
            }
​
            hexValue.append(Integer.toHexString(val));
        }
        return hexValue.toString();
    }

php

// 验签
function checkSign($response_content, $timestamp, $sign) {
    // 随机字符串 后台获取
    $nonce = "XOfX547SeCIlhufeeBBwgZIN";
​
    $buf = $response_content.$timestamp.$nonce;
    $encode = md5($buf);
​
    return $encode == $sign;
}
​

c#

    private static bool checkSign(string response_content, string timestamp, string sign)
    {
        // 随机字符串 后台获取
        string nonce = "XOfX547SeCIlhufeeBBwgZINx";
        string buf = response_content + timestamp + nonce;
        string encode = getMD5(buf);
        return encode.Equals(sign);
    }
​
    private static string getMD5(string txt)
    {
        using (MD5 mi = MD5.Create())
        {
            byte[] buffer = Encoding.ASCII.GetBytes(txt);
            //开始加密
            byte[] newBuffer = mi.ComputeHash(buffer);
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < newBuffer.Length; i++)
            {
                sb.Append(newBuffer[i].ToString("x2"));
            }
            return sb.ToString();
        }
    }

python

# 验签
def checkSign(response_content, timestamp, sign):
    # 随机字符串 后台获取
    nonce = "XOfX547SeCIlhufeeBBwgZIN"
    buf = response_content + timestamp + nonce
    encode = hashlib.md5(buf.encode(encoding='UTF-8')).hexdigest()
    return encode == sign