HttpWebRequest client proxy authenticate with selected proxy authentication type

Question

Dear Team,

I am using HttpWebRequest class to make a GET request to URL & get the data via Proxy.
Proxy returns with 407 code & Proxy-Authenticate: Negotiate\r\n & Proxy-Authenticate: Basic realm="test"\r\n headers.

I want to HttpWebRequest client to use Basic type and authenticate.

I used to set the HttpWebRequest request header Authorization (request.Headers.Add("Authorization", "Basic " + XXXX)) to basic but it failed still 407 retuned.

Is there a way to select proxy authentication type from the client & authenticate the proxy?

If the proxy is supporting multiple authentication types (basic/NTLM/Digest/Negotiate) how HttpWebRequest client can choose proxy auth type?

Please share snippet code.

Thanks in advance
Kishore

Answer 1

Is there any way to set AuthenticationSchemes for HttpWebRequest object.

so that I can select proxy authentication type & provide credentials from client side it self.

It seems HttpWebRequest class internally selecting AuthenticationSchemes based on the proxy server listed authentication schema like basic/NTLM/Digest/Negotiate.

Please clarify me. If yes please share any reference link.