.net TrustAllCertificatesCallback被忽略

给定url或服务器名称，如何使用powershell或.net库下载web服务器正在使用的（过期）证书，然后将其保存到文件或导入到我的证书存储中

谢谢

我已经取得了进步，在这个问题上我已经走了这么远：

static class Program
    {
        static void Main()
        {
            ServicePointManager.ServerCertificateValidationCallback = TrustAllCertificatesCallback;
            var tcpclient = new TcpClient("remote.example.com", 443);
            var tcpstream = tcpclient.GetStream();
            var sslstream = new SslStream(tcpstream);
            sslstream.AuthenticateAsClient("remote.example.com");
            X509Certificate rc = sslstream.RemoteCertificate;
            Console.WriteLine(rc.ToString());
            Console.ReadLine();
        }

        public static bool TrustAllCertificatesCallback(
            object sender, X509Certificate cert,
            X509Chain chain, System.Net.Security.SslPolicyErrors errors)
        {
            return true;
        }
    }

---

现在，当我运行这个程序时，我在

authenticatesclient

行上得到一个AuthenticationException，它说“根据验证过程，远程证书无效。”我在

返回true上用断点运行它

并且它从未调用过

TrustAllCertificatesCallback

。我认为程序集存在权限或配置问题，有人知道如何解决吗？

我没有做过类似的事情，但通过查看示例，我认为我可以看出问题所在。请尝试以下代码：

static class Program
{
    static void Main()
    {
        var tcpclient = new TcpClient("remote.example.com", 443);
        var tcpstream = tcpclient.GetStream();
        var sslstream = new SslStream(tcpstream, false, new RemoteCertificateValidationCallback (TrustAllCertificatesCallback));
        sslstream.AuthenticateAsClient("remote.example.com");
        X509Certificate rc = sslstream.RemoteCertificate;
        Console.WriteLine(rc.ToString());
        Console.ReadLine();
    }

    public static bool TrustAllCertificatesCallback(
        object sender, X509Certificate cert,
        X509Chain chain, System.Net.Security.SslPolicyErrors errors)
    {
        return true;
    }
}

---

PoshCode上有一个[SSL不经意Web客户端][1]，还有一个[Get Cert][2]，它实际上获得了证书，而不仅仅是信任所有证书。[1]: [2]: