internal static string CreateDigestAuthChallenge(string realm)
{
string text = HttpUtility.CreateNonceValue();
string text2 = "MD5";
string text3 = "auth";
return(string.Format("Digest realm=\"{0}\", nonce=\"{1}\", algorithm={2}, qop=\"{3}\"", new object[]
{
realm,
text,
text2,
text3
}));
}