[ntpwg] Stonger symmetric NTP authentication

[Bhatia, Manav (Manav)]

> I don't
> think that there is any real benefit to going to a new 
> digest. SHA-1 is
> being deprecated as not strong enough anyway and all users of this are
> moving to SHA-2.

There have been some hash collisions found with SHA-1, but none against
the construct (HMAC-SHA-1) that I was proposing. Moreover, the attacks
found against SHA-1 would not affect the way hashing is used within the
context of NTP.

Cheers, Manav 

> 
> Danny
> 
> > Cheers, Manav
>