How to disable "Security Alert" window in Webbrowser control

Question

I'm using Webbrowser control to login to HTTPS site with "untrusted certificate". but I get popup such standart window "Security Alert" about untrusted certificate:

http://s39.radikal.ru/i085/0810/ff/7fdbb47008c9.jpg

I have to find this window by title and send it "ALT + Y" to press 'YES':

int iHandle = NativeWin32.FindWindow(null, "Security Alert");

NativeWin32.SetForegroundWindow(iHandle);

System.Windows.Forms.SendKeys.Send("Y%");

but user can see a flickering of this window:( how can I ignore this alert? or disable this "untrusted certificate" check in Webbrowser control?

thanks in advance! Paul.

Answer 1

This should do it:

public static bool ValidateServerCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
{
    return true;
}

ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(ValidateServerCertificate);

Obviously, blindingly allowing certificates is a security risk. Be careful.

Answer 2

bobwienholt, thank you very much!

But I've another dummy question:)

I've found sample - how to use it with WebRequest/WebResponse, but

How can I use ServicePointManager with Webbrowser control?

thanks in advance!

Answer 3

I have a solution that will suit your needs. I am in the process of writing it up as a part of a Code Project article dealing with various WebBrowser Control/SSL tricks and will let you know here when it is ready.

Answer 4

Ok, article is up on code project - see http://www.codeproject.com/KB/shell/WebBrowserControlDialogs.aspx Hopefully this helps.

Answer 5

Thanks a lot. I love you!