On Wed, Dec 2, 2020 at 1:49 PM Stephen Farrell
wrote:
>
> Hiya,
>
> On 02/12/2020 21:38, Willem Toorop wrote:
> > Op 02-12-2020 om 21:37 schreef Stephen Farrell:
> >
> >
> >
> >>> ad 2) we need a value that’s synchronized well enough and monotonic.
> >>> I honestly don’t see any value in using 6
Op 02-12-2020 om 22:49 schreef Stephen Farrell:
>
> Hiya,
>
> On 02/12/2020 21:38, Willem Toorop wrote:
>> Op 02-12-2020 om 21:37 schreef Stephen Farrell:
>>
>>
>>
ad 2) we need a value that’s synchronized well enough and monotonic.
I honestly don’t see any value in using 64-bit valu
Hiya,
On 02/12/2020 21:38, Willem Toorop wrote:
Op 02-12-2020 om 21:37 schreef Stephen Farrell:
ad 2) we need a value that’s synchronized well enough and monotonic.
I honestly don’t see any value in using 64-bit value here. Using
unixtime has a value in itself, it’s a well-known and there’s
Op 02-12-2020 om 21:37 schreef Stephen Farrell:
>> ad 2) we need a value that’s synchronized well enough and monotonic.
>> I honestly don’t see any value in using 64-bit value here. Using
>> unixtime has a value in itself, it’s a well-known and there’s a
>> little room for any implementer to mak
Hiya,
On 02/12/2020 18:25, Ondřej Surý wrote:
Stephen,
ad 1) the performance is crucial for DNS over UDP and PRF such as
SipHash is more efficient than HMACs. No, it wasn’t consulted with
CFRG, and I can’t speak for Willem, but I am confident enough to make
the decision. SipHash is widely used
Stephen,
ad 1) the performance is crucial for DNS over UDP and PRF such as SipHash is
more efficient than HMACs. No, it wasn’t consulted with CFRG, and I can’t speak
for Willem, but I am confident enough to make the decision. SipHash is widely
used for hash tables virtually anywhere now.
ad 2)
Reviewer: Stephen Farrell
Review result: Has Issues
I see two issues here worth checking:
1. I don't recall SipHash being used as a MAC in
any IETF standard before. We normally use HMAC,
even if truncated. Why make this change and was
that checked with e.g. CFRG? (And the URL given
in the referen
