Hi Carlos, If you are making a 2-legged oauth call, you can optionally avoid oauth_body_hash. But you have to specify xoauth_requestor_id. That is the only way we can know who the "viewer" of the request is. I would suggest avoiding oauth_body_hash (at least for testing) since it is not mandatory.
And yes, xoauth_requestor_id is mandatory and is part of the base string. Here is an example base string. POST&http%3A%2F%2Fsandbox.orkut.com %2Fsocial%2Frpc&oauth_body_hash%3D5fhTk%2D%252FWn1nbtxMnN8yZzWk%252FyA%253D%26oauth_consumer_key%3Dorkut.com%253A60%26oauth_nonce%3D00232537%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1274677016%26oauth_version%3D1.0%26xoauth_requestor_id%3D018512666316881006356 Thanks, Sachin On Mon, May 24, 2010 at 4:46 AM, Prashant (Google) <[email protected]> wrote: > Hi Carlos, > > No, they're both not required and shouldn't be supplied. > > ~Prashant > > On May 23, 2:10 pm, Carlos <[email protected]> wrote: > > Hi, I am getting "invalid signature" from my REST calls, so I wanted > > to make sure if the signature is built from the oauth 1.0 parameters > > and > > - oauth_body_hash required or not, if true if it is part of the base > > string > > - xoauth_requestorr_id if required, if is part of the base string or > > not > > > > Regards, Carlos > > > > -- > > You received this message because you are subscribed to the Google Groups > "Orkut Developer Forum" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > [email protected]<opensocial-orkut%[email protected]> > . > > For more options, visit this group athttp:// > groups.google.com/group/opensocial-orkut?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Orkut Developer Forum" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<opensocial-orkut%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/opensocial-orkut?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Orkut Developer Forum" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/opensocial-orkut?hl=en.

