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Re: Mandatory Algorithm Changes?

Ben Laurie <ben@algroup.co.uk> Mon, 21 February 2005 12:47 UTC

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Date: Mon, 21 Feb 2005 12:18:10 +0000
From: Ben Laurie <ben@algroup.co.uk>
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To: Werner Koch <wk@gnupg.org>
Cc: Jon Callas <jon@callas.org>, OpenPGP <ietf-openpgp@imc.org>
Subject: Re: Mandatory Algorithm Changes?
References: <20050208194442.F2C6A57E2A@finney.org> <42092EC2.9040501@systemics.com> <87zmyeyyg9.fsf@wheatstone.g10code.de> <420A012A.5020204@systemics.com> <39c100e92dbc54b9fcb678d904676384@callas.org> <4219A890.3000603@algroup.co.uk> <87d5uu6upb.fsf@wheatstone.g10code.de>
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Werner Koch wrote:
> On Mon, 21 Feb 2005 09:23:28 +0000, Ben Laurie said:
> 
> 
>>Oops. What I said was that this seems like a candidate for having
>>flags in the PGP certificates that say what is supported by the
>>receiving application(s).
> 
> 
> Sorry, I don't understand this.  We do have these preferences since
> the very beginning.

Sorry, not very well today, and it seems not thinking straight. So why 
is there an issue with compatibility?

BTW, I see that 5.2.3.7. says "It is assumed that only algorithms listed 
are supported by the recipient's software" but this language is not 
carried forward into 5.2.3.8/9. In fact 5.2.3.9 explicitly rules out 
indicating what exactly is supported ("...the key holder's software 
might have no compression software").

Cheers,

Ben.

-- 
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