[tor-dev] Proposal 187: Reserve a cell type to allow client authorization

Roger Dingledine arma at mit.edu
Tue Oct 25 23:19:03 UTC 2011

On Wed, Oct 19, 2011 at 08:08:12PM -0400, Nick Mathewson wrote:
>   We reserve a new variable-length cell type, "AUTHORIZE."
>   We specify that any number of PADDING or VPADDING or AUTHORIZE
>   cells may be sent by the client before it sends a VERSIONS cell.
>   Servers that do not require client authorization MUST ignore such
>   cells, except to include them when calculating the HMAC that will
>   appear in the CLOG part of a client's AUTHENTICATE cell.
>   We still specify that clients SHOULD send VERSIONS as their first
>   cell; only in some future version of Tor will an AUTHORIZE cell be sent
>   first.

Sounds good to me. Feel free.


More information about the tor-dev mailing list