Re: DRAFT minutes, SACRED WG, Minneapolis IETF

[Yongge Wang <ywang@xxxxxxxxxxxx>]

> We MUST end up with an interoperable protocol. That means choosing one
> of everything that can be chosen, including authentication schemes as
> the mandatory-to-implement. We will ensure that implementations are
> able to flag other options (and might even generate some WG documents
> about them). 

Then it might be a little hard. Since it will depend on the
main user of SACRED of future. That is, the client devices are mainly
desktop computers or handheld devices (generally power, bandwidth,
computation ability constraint)? That will be the crucial factors
for choosing the algorithms. I do not think one Palm-user would like
to wait there for three minutes to establish the connection with
the server (the authentication or key exchange is quite slow
for some algorithms) and then download his/her credentials
(e.g., private signature key).
 
> One your second note, my interpretation would be that PDM doesn't
> have to support multiple types of cryptography like ECC, since 
> from the sacred perspective, PDM itself is an algorithm (i.e. if you
> had an EC variant, it wouldn't be PDM, but PDM-EC or something).

Thanks! I agree with you.

Regards,
Yongge



-----------------------------------------
Yongge Wang --- Cryptologic Mathematician
http://cs.uwm.edu/~wang/    Certicom Corp.
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