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Re: bohe and delta experimentation...

Nico Williams <nico@cryptonector.com> Wed, 16 January 2013 23:46 UTC

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Date: Wed, 16 Jan 2013 17:45:09 -0600
Message-ID: <CAK3OfOhewuVdjxu7UUp49g8B33YZNJ_N-PkASkHLP213+8gquA@mail.gmail.com>
From: Nico Williams <nico@cryptonector.com>
To: Mark Nottingham <mnot@mnot.net>
Cc: James M Snell <jasnell@gmail.com>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>
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Subject: Re: bohe and delta experimentation...
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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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