Re: [MSEC] Review of draft-ietf-msec-tesla-for-alc-norm-05.txt

Hi, Vincent,
  Thanks a lot for your comments. We are working on them and will let
you know the answers as soon as possible.

Regards,
Lei

-----Original Message-----
From: msec-bounces@ietf.org [mailto:msec-bounces@ietf.org] On Behalf Of
Vincent Roca
Sent: 24 October 2008 09:40
To: Liang L Mr (CCSR)
Cc: Cruickshank HS Dr (CCSR); msec@ietf.org; vincent.roca@inria.fr;
aurelien.francillon@inria.fr; faurite@lcpc.fr
Subject: Re: [MSEC] Review of draft-ietf-msec-tesla-for-alc-norm-05.txt

Dear Lei,

Thanks a lot for your interest in TESLA and support.

Concerning your proposal, we don't agree with your idea,
but maybe we can discuss this offline.

Best regards,

  Vincent

L.Liang@surrey.ac.uk wrote:
> Dear Vincent, Aurelien and Faurite,
>   My name is Lei Liang from University of surrey, UK. As my colleague
> Dr. Haitham Cruickshank talked with Vincent in the last IETF meeting,
we
> are working on a new TESLA synchronization method while integrating
with
> FLUTE, which is built on ALC, in a UK EPSRC project called
> Satellite-Based Secure Multicast employing Hybrid Reliability. We
think
> your ID is definitely very interesting and we used it as a very
> important reference in our study. So you have our support here :).
>   The new synchronization method we proposed is trying to eliminate
the
> bidirectional channel requested by the direct synchronization as
stated
> in the TESLA RFC because the ALC does not need it, especially in a
> satellite network. It is trying to take use of the FDT function in the
> FLUTE protocol to deliver the TESLA bootstrapping message and the
> information needed for synchronization. This can be achieved as long
as
> the FDT is periodically broadcasted or mulicasted to a well-known
> address. This synchronization information is not a strong overhead but
> the interval index in which the source is when sending the
bootstrapping
> message. It can also solve the scalability problem on the source when
> the multicast group is big. We published our initial study in ICC'2008
> and are implementing and validating the method now. Please find the
> enclosed pdf version of the paper that has the detailed description. 
>   I hope it can provide some useful thought for your ID and your
> comments are more than welcome.
> 
> 
> Best regards,
> 
> Lei Liang

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