Re: [hybi] "fresh" and "uniformly at random":
Denis Lagno <dilmah@chromium.org> Mon, 20 June 2011 07:26 UTC
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Date: Mon, 20 Jun 2011 11:26:49 +0400
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From: Denis Lagno <dilmah@chromium.org>
To: Adam Barth <ietf@adambarth.com>
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Cc: hybi@ietf.org
Subject: Re: [hybi] "fresh" and "uniformly at random":
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maybe I miss something but in the text "fresh" is applied to 32-bit values.. On Mon, Jun 20, 2011 at 6:57 AM, Adam Barth <ietf@adambarth.com> wrote: > On Sat, Jun 18, 2011 at 12:34 AM, Denis Lagno <dilmah@chromium.org> wrote: >> On Sat, Jun 18, 2011 at 10:27 AM, Adam Barth <ietf@adambarth.com> wrote: >>> The term "fresh" is a term of art in cryptography. It means, roughly, >>> "not used previously." >> >> So this implies that client must keep track of already used keys? it >> imposes limit on length of connection? >> True it or false, It should be explicitly clarified in the text. > > The normal practice in cryptography is to just use large enough values > such that the probably of collision is sufficiently small as to be > acceptable. For example, if you use a 20 byte nonce, the probably of > collision is zero for all practical purposes. > > This stuff is all extremely normal. > > Adam >
- [hybi] "fresh" and "uniformly at random": Arman Djusupov
- Re: [hybi] "fresh" and "uniformly at random": Adam Barth
- Re: [hybi] "fresh" and "uniformly at random": Denis Lagno
- Re: [hybi] "fresh" and "uniformly at random": Adam Barth
- Re: [hybi] "fresh" and "uniformly at random": Denis Lagno
- Re: [hybi] "fresh" and "uniformly at random": Adam Barth
- Re: [hybi] "fresh" and "uniformly at random": Denis Lagno
- Re: [hybi] "fresh" and "uniformly at random": Adam Barth
- Re: [hybi] "fresh" and "uniformly at random": Arman Djusupov