check your cetificate file. Be sure not to open or save certificates
in wordpad etc use notepad

On Oct 10, 7:45 pm, Akash <[email protected]> wrote:
> Hi,
>    I am running into some issues regarding Authentication of my signed
> request. Validation of signed request always fails.
>
> For simplicity of debugging, Here are the list of parameters that I am
> using to generate base string
>
>     List<QueryParameter> parameters = new List<QueryParameter>();
>     parameters.Add(new QueryParameter("oauth_nonce" ,
> "1255174236461304000"));
>     parameters.Add(new QueryParameter("oauth_timestamp",
> "1255174236"));
>     parameters.Add(new QueryParameter("oauth_signature_method", "RSA-
> SHA1"));
>     parameters.Add(new QueryParameter("oauth_consumer_key",
> "orkut.com"));
>     parameters.Add(new QueryParameter("oauth_token", ""));
>     parameters.Add(new QueryParameter("opensocial_owner_id",
> "04260157720044639260"));
>     parameters.Add(new QueryParameter("opensocial_viewer_id",
> "04260157720044639260"));
>     parameters.Add(new QueryParameter("opensocial_app_id",
> "07513949224686644859"));
>     parameters.Add(new QueryParameter("opensocial_app_url", 
> "http://www.knownmarket.com/KMWeb/KnownMarket.xml";));
>     parameters.Add(new QueryParameter("xoauth_signature_publickey",
> "pub.1199819524.-1556113204990931254.cer"));
>
> //Commented Out because including also didnt help
>     //parameters.Add(new QueryParameter("opensocial_container",
> "http://www.orkut.com";));
>     //parameters.Add(new QueryParameter("oauth_body_hash",
> "HC2N0z5sbRPkI4csJ00ilMlXzes="));
>     //parameters.Add(new QueryParameter("xoauth_public_key", "pub.
> 1199819524.-1556113204990931254.cer"));
>     //parameters.Add(new QueryParameter("oauth_version","1.0"));
>
>       parameters.Sort(new QueryParameterComparer());
>
>       string normalizedUrl = "http://www.knownmarket.com/KMWeb/
> ListingSvc.asmx";
>
>      string normalizedRequestParameters = NormalizeRequestParameters
> (parameters);
>
>             StringBuilder signatureBase = new StringBuilder();
>             signatureBase.AppendFormat("{0}&", "POST");
>             signatureBase.AppendFormat("{0}&", UrlEncode
> (normalizedUrl));
>             signatureBase.AppendFormat("{0}", UrlEncode
> (normalizedRequestParameters));
>             return signatureBase.ToString();
>
> I tried the C# example provided 
> onhttp://wiki.opensocial.org/index.php?title=Validating_Signed_Requests
> but even that didnt help.
>
> Gurus, do let me know if I am missing out anything here?
>
> Thanks,
> -Akash

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