Binance API HMAC SHA256 签名错误使用 C#

Question

我尝试连接到Binance ApiUsing C#And RestSharplib。根据文件，我应该尝试这样的事情：

查询字符串：符号=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTC&quantity=1&price=0.1&recvWindow=5000×tamp=1499827319559

HMAC SHA256 签名：

[linux]$ echo -n "symbol=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTC&quantity=1&price=0.1&recvWindow=5000×tamp=1499827319559" | openssl dgst -sha256 -hmac "NhqPtmdSJYdKjVHjA7PZj4Mge3R5YNiP1e3UZjInClVN65XAbvqqM6A7H5fATj0j" (stdin)= c8db56825ae71d6d71206000000000000000000000000000001c8db56825ae71d6d7920621bc8c8c8c8c8c8c8c8c8c8c8c8c8c8c8c8c8c88c88c8888888

(HMAC SHA256) [linux]$ curl -H "X-MBX-APIKEY: vmPUZE6mv9SD5VNHk4HlWFsOr6aKE2zvsw0MuIgwCIPy6utIco14y7Ju91duEh8A" -X POST https://api.binance.com/api.binance.order/api/quantity=YC&T&TyC&T=C&T&Q =0.1&recvWindow=5000×tamp=1499827319559&signature=c8db56825ae71d6d79447849e617115f4a920fa2acdcab2b053c4b2838bd6b71

我尝试了很多方法和很多堆栈问题，但我找到了其他语言而不是 c# 的解决方案。这是我所做的基于：这个和这个

public string GetAccountInfo()
    {
        long timeStamp = GetTimestamp();
        var request = new RestRequest("api/v3/account");
        request.AddHeader("X-MBX-APIKEY", ApiKey);
        request.AddParameter("timestamp", timeStamp, ParameterType.QueryString);
        request.AddParameter("recvWindow", RecvWindow, ParameterType.QueryString);
        request.AddParameter("signature", GetSignature(request.Parameters), ParameterType.QueryString);
        return Client.Get(request).Content;
    }
private long GetTimestamp()
    {
        return new DateTimeOffset(DateTime.UtcNow).ToUnixTimeMilliseconds();
    }

    private string GetSignature(List<Parameter> parameters)
    {
        var signature = "";
        if(parameters.Count > 0)
        {
            foreach (var item in parameters)
            {
                if(item.Name != "X-MBX-APIKEY")
                    signature += $"{item.Name}={item.Value}&";
            }
            signature = signature.Substring(0, signature.Length - 2);
        }
        byte[] keyBytes = Encoding.Unicode.GetBytes(ApiSecret);
        byte[] valueBytes = Encoding.Unicode.GetBytes(signature);
        return HashEncode(HashHMAC(keyBytes, valueBytes));
    }

    private static byte[] HashHMAC(byte[] key, byte[] message)
    {
        var hash = new HMACSHA256(key);
        return hash.ComputeHash(message);
    }

    private static string HashEncode(byte[] hash)
    {
        return BitConverter.ToString(hash).Replace("-", "").ToLower();
    }

但我收到此错误：此请求的签名无效。我该如何解决？谢谢你。

Answer 1

以下是签名生成的工作示例：

    public static string CreateSignature(string queryString, string secret)
    {

        byte[] keyBytes = Encoding.UTF8.GetBytes(secret);
        byte[] queryStringBytes = Encoding.UTF8.GetBytes(queryString);
        HMACSHA256 hmacsha256 = new HMACSHA256(keyBytes);

        byte[] bytes = hmacsha256.ComputeHash(queryStringBytes);

        return BitConverter.ToString(bytes).Replace("-", "").ToLower();
    }

queryString是您在查询中传递的参数字符串，例如timestamp=1586620030079
secret是您的 api 秘密。

需要注意的重要一点是，Bad Request当您逐步进行调试时，请求会因响应而失败，因为时间戳超出了 recv 窗口。

您还可以发现此 SDK 至少作为工作代码示例非常有用：https : //github.com/nathan-alexander/csharp-binance-api