C＃忽略证书错误？-Java 学习之路

129

在对远程Web服务的Web服务请求期间，我收到以下错误：

无法为SSL / TLS安全通道 Build 信任关系 . ---> System.Security.Authentication.AuthenticationException：根据验证程序，远程证书无效 .

反正有没有忽略这个错误，并继续？

似乎远程证书没有签名 .

我连接的网站是 www.czebox.cz - 所以随时访问该网站，并注意甚至浏览器抛出安全例外 .

8 回答

添加证书验证处理程序 . 返回 true 将允许忽略验证错误：

ServicePointManager
    .ServerCertificateValidationCallback += 
    (sender, cert, chain, sslPolicyErrors) => true;

回复于 2024-05-03T14:09:09+08:00

IgnoreBadCertificates Method:

//I use a method to ignore bad certs caused by misc errors
IgnoreBadCertificates();

// after the Ignore call i can do what ever i want...
HttpWebRequest request_data = System.Net.WebRequest.Create(urlquerystring) as HttpWebRequest;

/*
and below the Methods we are using...
*/

/// <summary>
/// Together with the AcceptAllCertifications method right
/// below this causes to bypass errors caused by SLL-Errors.
/// </summary>
public static void IgnoreBadCertificates()
{
    System.Net.ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(AcceptAllCertifications);
}  

/// <summary>
/// In Short: the Method solves the Problem of broken Certificates.
/// Sometime when requesting Data and the sending Webserverconnection
/// is based on a SSL Connection, an Error is caused by Servers whoes
/// Certificate(s) have Errors. Like when the Cert is out of date
/// and much more... So at this point when calling the method,
/// this behaviour is prevented
/// </summary>
/// <param name="sender"></param>
/// <param name="certification"></param>
/// <param name="chain"></param>
/// <param name="sslPolicyErrors"></param>
/// <returns>true</returns>
private static bool AcceptAllCertifications(object sender, System.Security.Cryptography.X509Certificates.X509Certificate certification, System.Security.Cryptography.X509Certificates.X509Chain chain, System.Net.Security.SslPolicyErrors sslPolicyErrors)
{
    return true;
}

回复于 2024-05-03T14:09:09+08:00

5

它失败的原因不是因为它没有签名，而是因为客户端不信任根证书 . 而不是关闭SSL验证，另一种方法是将根CA证书添加到您的应用信任的CA列表中 .

这是您的应用当前不信任的根CA证书：

----- BEGIN CERTIFICATE ----- MIIFnDCCBISgAwIBAgIBZDANBgkqhkiG9w0BAQsFADBbMQswCQYDVQQGEwJDWjEs MCoGA1UECgwjxIxlc2vDoSBwb8WhdGEsIHMucC4gW0nEjCA0NzExNDk4M10xHjAc BgNVBAMTFVBvc3RTaWdudW0gUm9vdCBRQ0EgMjAeFw0xMDAxMTkwODA0MzFaFw0y NTAxMTkwODA0MzFaMFsxCzAJBgNVBAYTAkNaMSwwKgYDVQQKDCPEjGVza8OhIHBv xaF0YSwgcy5wLiBbScSMIDQ3MTE0OTgzXTEeMBwGA1UEAxMVUG9zdFNpZ251bSBS b290IFFDQSAyMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoFz8yBxf 2gf1uN0GGXknvGHwurpp4Lw3ZPWZB6nEBDGjSGIXK0Or6Xa3ZT tVDTeUUjT133G 7Vs51D6z / ShWy 9T7a1f6XInakewyFj8PT0EdZ4tAybNYdEUO / dShg2WvUyfZfXH 0jmmZm6qUDy0VfKQfiyWchQRi / Ax6zXaU2 X3hXBfvRMr5l6zgxYVATEyxCfOLM9 a5U6lhpyCDf2Gg6dPc5Cy6QwYGGpYER1fzLGsN9stdutkwlP13DHU1Sp6W5ywtfL owYaV1bqOOdARbAoJ7q8LO6EBjyIVr03mFusPaMCOzcEn3zL5XafknM36Vqtdmqz IWR 3URAUgqE0wIDAQABo4ICaTCCAmUwgaUGA1UdHwSBnTCBmjAxoC gLYYraHR0 cDovL3d3dy5wb3N0c2lnbnVtLmN6L2NybC9wc3Jvb3RxY2EyLmNybDAyoDCgLoYs aHR0cDovL3d3dzIucG9zdHNpZ251bS5jei9jcmwvcHNyb290cWNhMi5jcmwwMaAv oC2GK2h0dHA6Ly9wb3N0c2lnbnVtLnR0Yy5jei9jcmwvcHNyb290cWNhMi5jcm WW gfEGA1UdIASB6TCB5jCB4wYEVR0gADCB2jCB1wYIKwYBBQUHAgIwgcoagcdUZW50 byBrdmFsaWZpa292YW55IHN5c3RlbW92eSBjZXJ0aWZpa2F0IGJ5bCB2eWRhbiBw b2RsZSB6YWtvbmEgMjI3LzIwMDBTYi4gYSBuYXZhem55Y2ggcHJlZHBpc3UvVGhp cyBxdWFsaWZpZWQgc3lzdGVtIGNlcnRpZmljYXRlIHdhcyBpc3N1ZWQgYWNjb3Jk aW5nIHRvIExhdyBObyAyMjcvMjAwMENvbGwuIGFuZCByZWxhdGVkIHJlZ3VsYXRp b25zMBIGA1UdEwEB / wQIMAYBAf8CAQEwDgYDVR0PAQH / BAQDAgEGMB0GA1UdDgQW BBQVKYzFRWmruLPD6v5LuDHY3PDndjCBgwYDVR0jBHwweoAUFSmMxUVpq7izwřS7gx2Nzw53ahX6RdMFsxCzAJBgNVBAYTAkNaMSwwKgYDVQQKDCPEjGVza8OhIHBv xaF0YSwgcy5wLiBbScSMIDQ3MTE0OTgzXTEeMBwGA1UEAxMVUG9zdFNpZ251bSBS b290IFFDQSAyggFkMA0GCSqGSIb3DQEBCwUAA4IBAQBeKtoLQKFqWJEgLNxPbQNN 5OTjbpOTEEkq2jFI0tUhtRx // 6zwuqJCzfO / KqggUrHBca GV / qXcNzNAlytyM71 FMV / VwgL9gBHTN / IFIw100JbciI23yFQTdF / UoEfK /米IFfirxSRi8LRERdXHTEb vwxMXIzZVXloWvX64UwWtf4Tvw5bAoPj0O1Z2ly4aMTAT2aýz184UhuZ / oGyMw eIakmFM7M7RrNki507jiSLTzuaFMCpyWOX7ULIhzY6xKdm5iQLjTvExn2JTvVChFýjUu / G0zAdLyeU4vaXdQm1A8AEiJPTd0Z9LAxL6Sq2iraLNN36 NyEK / ts3mPLL

-----结束证书-----

您可以使用解码和查看此证书

this certificate decoder或another certificate decoder

回复于 2024-05-03T14:09:09+08:00

允许所有证书非常强大，但也可能是危险的 . 如果您只想允许有效证书加上某些证书，可以这样做 .

System.Net.ServicePointManager.ServerCertificateValidationCallback += delegate (
    object sender,
    X509Certificate cert,
    X509Chain chain,
    SslPolicyErrors sslPolicyErrors)
{
    if (sslPolicyErrors == SslPolicyErrors.None)
    {
        return true;   //Is valid
    }

    if (cert.GetCertHashString() == "99E92D8447AEF30483B1D7527812C9B7B3A915A7")
    {
        return true;
    }

    return false;
};

Update:

如何在Chrome中获取 cert.GetCertHashString() 值：

单击地址栏中的 Secure 或 Not Secure .

enter image description here

然后单击Certificate - > Details - > Thumbprint并复制该值 . 记得做 cert.GetCertHashString().ToLower() .

enter image description here

回复于 2024-05-03T14:09:09+08:00

在客户端配置中禁用ssl证书验证 .

<behaviors>
   <endpointBehaviors>
      <behavior name="DisableSSLCertificateValidation">
         <clientCredentials>
             <serviceCertificate>
                <sslCertificateAuthentication certificateValidationMode="None" />
              </serviceCertificate>
           </clientCredentials>
        </behavior>

回复于 2024-05-03T14:09:09+08:00

288

这段代码对我有用 . 我不得不添加TLS2，因为这就是我感兴趣的URL所使用的 .

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
ServicePointManager.ServerCertificateValidationCallback +=
    (sender, cert, chain, sslPolicyErrors) => { return true; };
using (var client = new HttpClient())
{
    client.BaseAddress = new Uri(UserDataUrl);
    client.DefaultRequestHeaders.Accept.Clear();
    client.DefaultRequestHeaders.Accept.Add(new
      MediaTypeWithQualityHeaderValue("application/json"));
    Task<string> response = client.GetStringAsync(UserDataUrl);
    response.Wait();

    if (response.Exception != null)
    {
         return null;
    }

    return JsonConvert.DeserializeObject<UserData>(response.Result);
}

回复于 2024-05-03T14:09:09+08:00

23
如果您直接使用套接字并作为客户端进行身份验证，那么Service Point Manager回调方法赢得了't work. Here' s对我有用的功能 . PLEASE USE FOR TESTING PURPOSES ONLY .
```
var activeStream = new SslStream(networkStream, false, (a, b, c, d) => { return true; });
await activeStream.AuthenticateAsClientAsync("computer.local");
```
这里的关键是在SSL流的构造函数中提供远程证书验证回调权限 .
回复于 2024-05-03T14:09:09+08:00
1

进一步扩展BIGNUM的帖子 - 理想情况下，你想要一个能够模拟你在生产环境中看到的条件并修改你的代码的解决方案将不会这样做，如果你在部署代码之前忘记了代码，那么可能会很危险 .

您将需要某种自签名证书 . 如果您知道自己在做什么，可以使用已发布的二进制BIGNUM，但如果不知道，您可以去寻找证书 . 如果你正在使用IIS Express，你将拥有其中一个，你只需要找到它 . 打开Firefox或您喜欢的任何浏览器，然后转到您的开发网站 . 您应该能够从URL栏查看证书信息，并且根据您的浏览器，您应该能够将证书导出到文件中 .

接下来，打开MMC.exe，然后添加“证书”管理单元 . 将您的证书文件导入受信任的根证书颁发机构商店，这就是您应该需要的 . 它的重要的是要确保它进入该商店而不是像“个人”这样的其他商店 . 如果您不熟悉MMC或证书，则有许多网站都会提供有关如何执行此操作的信息 .

现在，您的计算机作为一个整体将隐式信任它自己生成的任何证书，您不需要添加代码来专门处理它 . 当您转到生产环境时，如果您在那里安装了正确的有效证书，它将继续工作 . 不要在生产环境服务器上执行此操作 - 这样做会很糟糕，除了服务器本身以外的任何其他客户端都不会 .

回复于 2024-05-03T14:09:09+08:00

C＃忽略证书错误？

8 回答

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