Apachai.OAuth.MakeSignature C# (CSharp) Method

        static string MakeSignature(string method, string base_uri, Dictionary<string,string> headers)
        {
            var items = from k in headers.Keys orderby k
                select k + "%3D" + OAuth.PercentEncode (headers [k]);

            return method + "&" + OAuth.PercentEncode (base_uri) + "&" +
                string.Join ("%26", items.ToArray ());
        }