Re: [Cfrg] Re: [saag] Algorithm upgrades

[RJ Atkinson <rja at extremenetworks.com>]

On Oct 29, 2004, at 09:23, Alex Alten wrote:
> Let me point out as an example that the automated teller machines 
> (ATMs) security
> protocol has been using the same algorithm with DES since about 1982.  
> Making
> protocols algorithm independent (with extra handshakes and upgrade 
> mechanisms)
> has the side effect of making them very complex and thus harder to 
> certify for
> interoperability, optimize for performance, etc.
>
> - Alex

I am not at all persuaded that making protocols algorithm-independent 
necessarily
has the side effect of making them more complex or harder to certify or 
harder to
performance optimise.  I've seen a lot of protocols that were not 
algorithm-independent
that *were* astonishingly complex, so the inverse is also not obvious 
to me.

Ran
rja at extremenetworks.com


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