Re: Mandatory Algorithm Changes?
Ian G <iang@systemics.com> Wed, 09 February 2005 12:43 UTC
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Message-ID: <420A012A.5020204@systemics.com>
Date: Wed, 09 Feb 2005 12:25:14 +0000
From: Ian G <iang@systemics.com>
Organization: http://financialcryptography.com/
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Subject: Re: Mandatory Algorithm Changes?
References: <20050208194442.F2C6A57E2A@finney.org> <42092EC2.9040501@systemics.com> <87zmyeyyg9.fsf@wheatstone.g10code.de>
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Werner Koch wrote: >On Tue, 08 Feb 2005 21:27:30 +0000, Ian G said: > > > >>If both of the major OpenPGP implementations >>already support it, is there any reason to doubt >>the little guys will follow along eventually? >> >> > >There are other implementations using OpenPGP as well. For embedded >systems adding another MUST cipher is a problem, in particular if 3DES >is already done in (old) hardware. There might also be the need to >implement the preferences system unless both, 3DES and AES, are >declared as fallback algorithms. > > Right, in that it's a given that there are always problems for any change. But let's explore this a bit more. What is being changed (suggested) is the OpenPGP RFC - standard. No implementation needs to change, and the only implementations that would want to change would be future ones that need to adhere to the standard. Embedded devices don't really need to adhere (here, I am assuming that such embedded are totally embedded and aren't communicating with the open email community). Also, as time goes on, those that do not support AES are going to raise more and more eyebrows. I think the time is going to come fairly shortly where I'd say "implementing AES" was more important than "slavishly following the standard in every detail." Are there any little guys here would like to add anything? Positive or negative? FTR: Edwin informs me that the Cryptix OpenPGP has no objection. (Which should be taken to mean I vote for the change - I'm just playing the devil's advocate here.) iang -- News and views on what matters in finance+crypto: http://financialcryptography.com/
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