Re: [tor-dev] Draft sketch document with ideas for future crypto ops

2011-11-02 Thread unknown
On Mon, 31 Oct 2011 23:59:55 -0500 Watson Ladd wrote: > What about this for modification resistance? > We keep a count of all cells passing and use AES in CTR mode with a 2 part > counter: the first part the cell counter, the second one a block counter. > Then to authenticate the cell we can use

Re: [tor-dev] Draft sketch document with ideas for future crypto ops

2011-11-02 Thread Robert Ransom
On 2011-11-01, Roger Dingledine wrote: > On Mon, Oct 31, 2011 at 09:25:58PM -0400, Nick Mathewson wrote: >> The point of this document is to discuss what crypto we ought to be >> using. > > Thanks Nick! > >> - To make sure that the extending node is talking to the right next >> node >>

Re: [tor-dev] Draft sketch document with ideas for future crypto ops

2011-10-31 Thread Roger Dingledine
On Mon, Oct 31, 2011 at 09:25:58PM -0400, Nick Mathewson wrote: > The point of this document is to discuss what crypto we ought to be using. Thanks Nick! > - To make sure that the extending node is talking to the right next node > when sending an extend cell. > > The new extend cel

[tor-dev] Draft sketch document with ideas for future crypto ops

2011-10-31 Thread Nick Mathewson
Here's an early draft document trying to sketch out the parameters for migrating to better crypto ops and designs in the future. Comments are invited, even comments of the form "you will need to be much more specific here before I can say anything sensible." This is proposals/ideas/xxx-new-crypto