Question

使用C＃4.0，我需要使用BouncyCastle库进行HTTPS调用（短篇小说：Windows XP + TLS 1.2）。

使用以下代码时，我收到＆＃34; HTTP错误400.请求谓词无效。＆＃34;

这是我的代码：

using (var client = new TcpClient("serverName", 443))
{
    var sr = new SecureRandom();
    var cl = new MyTlsClient();
    var protocol = new TlsClientProtocol(client.GetStream(), sr);
    protocol.Connect(new MyTlsClient());

    using (var stream = protocol.Stream)
    {
         var hdr = new StringBuilder();
         hdr.AppendLine("GET /Url/WebService.asmx?wsdl HTTP/1.1");
         hdr.AppendLine("Host: serverName");
         hdr.AppendLine("Content-Type: text/xml; charset=utf-8");
         hdr.AppendLine("Connection: close");
         hdr.AppendLine();

         var dataToSend = Encoding.ASCII.GetBytes(hdr.ToString());
         sr.NextBytes(dataToSend);

         stream.Write(dataToSend, 0, dataToSend.Length);

         int totalRead = 0;
         string response = "";
         byte[] buff = new byte[1000];
         do
         {
              totalRead = stream.Read(buff, 0, buff.Length);
              response += Encoding.ASCII.GetString(buff, 0, totalRead);
         } while (totalRead == buff.Length);
     }
 } 

class MyTlsClient : DefaultTlsClient
{
    public override TlsAuthentication GetAuthentication() 
    {
        return new MyTlsAuthentication();
    }
}

class MyTlsAuthentication : TlsAuthentication
{
    public TlsCredentials GetClientCredentials(CertificateRequest certificateRequest) { return null; }

    public void NotifyServerCertificate(Certificate serverCertificate) {    }
}

我已经做过的事情：

使用WireShark解密ssl流并检查请求send =＆gt;我从未成功解密过ssl流
使用fiddler解密https stream =＆gt; fiddler没有检测到我怀疑某些内容可能被严重加密

有什么想法吗？

Answer 1

Thanks to PeterDettman who gave me the solution :

I must not use the sr.NextBytes(instructions), so the code becomes :

using (var client = new TcpClient("serverName", 443))
{
    var sr = new SecureRandom();
    var cl = new MyTlsClient();
    var protocol = new TlsClientProtocol(client.GetStream(), sr);
    protocol.Connect(new MyTlsClient());

    using (var stream = protocol.Stream)
    {
         var hdr = new StringBuilder();
         hdr.AppendLine("GET /Url/WebService.asmx?wsdl HTTP/1.1");
         hdr.AppendLine("Host: serverName");
         hdr.AppendLine("Content-Type: text/xml; charset=utf-8");
         hdr.AppendLine("Connection: close");
         hdr.AppendLine();

         var dataToSend = Encoding.ASCII.GetBytes(hdr.ToString());

         stream.Write(dataToSend, 0, dataToSend.Length);

         int totalRead = 0;
         string response = "";
         byte[] buff = new byte[1000];
         do
         {
              totalRead = stream.Read(buff, 0, buff.Length);
              response += Encoding.ASCII.GetString(buff, 0, totalRead);
         } while (totalRead == buff.Length);
     }
 }

使用BouncyCastle库在C＃中进行HTTPS调用

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