title: MAC Access Token Authentication IETF draft for OAuth 2.0
body: <p>Does anybody know what happened to the IETF draft regarding the standardization of the HTTP MAC access authentication scheme for OAuth 2.0 (<a href="https://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-http-mac-00" rel="nofollow noreferrer">draft-ietf-oauth-v2-http-mac-00</a>)?</p>
  <p>This internet draft expired on 12 November 2011 and the IETF tracker tool doesn't tell whether this proposal has been dropped or there has been a follow-up.</p>
  <p>I would be interested to know the most up-to-date status of this draft since I should implement MAC access token authentication for an OAuth 2.0 web service I have been working on.</p>
  <p><a href="https://stackoverflow.com/users/807187/eran-hammer-lahav">Eran Hammer-Lahav</a>, you there?</p>