How to Authenticate Webbrowser Control with Digest?

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C#

Visual-Studio

.NET4

Hi,

I´d like to implement Basic and Digest authentication for a webbrowser
control in my C# application.

For Basic authentication i´ve already found a solution, which uses an
additional header:

string hdr = "Authorization: BASIC " + Convert.ToBase64String(Encoding.ASCII.GetBytes(uname + ":" + pwd)) + " " + System.Environment.NewLine;
webBrowser1.Navigate(url, null, null, hdr);

But for Digest authentication there are only some solutions which demonstrate how to use with web requests.

WebClient webcli = new WebClient();
CredentialCache authcache = new CredentialCache();
authcache.Add(new Uri(url), "Digest", new NetworkCredential(uname,
pwd));
webcli.Credentials = authcache;
string results =
System.Encoding.UTF8.GetString(webcli.DownloadData(url));

Is there a way to implement this for the webbrowser control?
A code snippet would be greatly appreciated.

Thanks,
Tony