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Re: bohe and delta experimentation...

James M Snell <jasnell@gmail.com> Thu, 17 January 2013 00:02 UTC

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From: James M Snell <jasnell@gmail.com>
Date: Wed, 16 Jan 2013 16:01:27 -0800
Message-ID: <CABP7Rbdr6foybb=cbKcQBUMGdsu8qtkzJrGXzNY0Mf2mUkdyng@mail.gmail.com>
To: Nico Williams <nico@cryptonector.com>
Cc: Mark Nottingham <mnot@mnot.net>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>
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Subject: Re: bohe and delta experimentation...
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I'd still like to retain the option of sub-second precision but this works
for me. Losing precision when translating to http/1 is acceptable.


On Wed, Jan 16, 2013 at 3:45 PM, Nico Williams <nico@cryptonector.com>wrote:

> On Wed, Jan 16, 2013 at 5:39 PM, Mark Nottingham <mnot@mnot.net> wrote:
> > On 17/01/2013, at 10:35 AM, Nico Williams <nico@cryptonector.com> wrote:
> > Yep, but you either need to make the epoch start at least a few years
> ago (old Last-Modified times, is important for heuristic freshness), OR
> keep it signed (losing a bit).
> >
> > And I think you need more than 12 bits for seconds in a day...
>
> Oops, for some reason I thought of seconds in an hour.  So 5 more
> bits, and we're about even with seconds since epoch.  Either way
> getting from 24 bytes to 4 is pretty good, and no compression scheme
> will do better.
>

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