[rc5] Mac DESChall -> Mac Bovine RC5
insect at antennahead.com
Fri Jun 20 02:06:20 EDT 1997
>As Tris will tell you, I've been annoying him to death about it :)
>I understand that he is working with one of the Mac DES people on
>getting a new one prepared for the Mac OS.
I'm the Mac DES guy, and I've done a little work on it, but I haven't really
been in touch with Tris so I think I may end up doing this independently.
Here's the story:
* The new client that'll be forthcoming for all the command-line systems
is basically a total rewrite, and so it'll require a new port.
* I'll be trying to do a Mac port of it using the same GUI frontend that
the deschall/mac people came to know and hate. :) [Actually, it's a
newer version of the source from what was released for deschall. It
had graphing and 68k support added for a descall update that never
* I've written a pretty straightforward rc5 encrypter in powerpc assembly,
and it did 485 kkeys/sec on my machine (the current client does 298
on the same machine). Nothing tricky, just a clean implementation. It
may be close to optimal on 601 and 603 machines, but I think by getting
tricky I can get even more performance out of 604 and Arthur chips.
* I can't put that assembly or the deschall GUI on a client that doesn't
exist yet. All of this is dependent on getting the v2 clients for
other systems finished and debugged so I can work from there. It
doesn't make sense for me to try to improve the v1 client that'll be
* I won't be able to work on any of this next week. If the new clients
are done by Friday evening I might be able to do a port before other
activities intervene, if not you probably won't see anything from me
Andrew Meggs, sleep-deprived micromanager Antennahead Industries, Inc.
<mailto:insect at antennahead.com> <http://www.antennahead.com>
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