Re: Contacting Matthew Fischer - IDEA cipher for Apple II

[roughana <andrew.roughan@writeme.com>]

On Jul 6, 7:52 pm, Matthew Fischer
<futhjjj...@ujjjsers.sourcejjjforge.njjjet> wrote:

Wow. That's a quick response. From the man himself.
I've been googling on and off for over a year and haven't found a
recent contact address for you.

> I don't have the original file that was posted to comp.sources.apple2
It doesnt seem like many people do.
The (ex-)moderator has not yet made them available again despite
repeated requests.

> but I do still have those routines. Would you like me to mail them to you?
Yes please.

> Are you planning on incorporating them into your crypto program?
I was certainly going to ask your permission to do so if I could find
you.
Under what licencing method are you releasing your source?

> I'm curious as to why you would want to support IDEA in this day and age.
Well, it has been written (so why not) and potentially could be useful
for implementors of SSL-like abilities - especially if there are no
other options.

> Besides the original 65C02 version, I made a pure 6502 version
Speed is less important to me at this stage than the functionality.
However my target platform is the IIgs, so 65816 optimisation at some
point in the future may be worthwhile.

> I've also got some Rijndael (AES) code I've been working on.
That's brilliant. I was just thinking today about how to support AES
as well.
I'm definately interested in incorporating that too if possible.

> I've also got DES routines, which are based on Paul Guertin's code but
> it looks like you already have DES routines.
Well, if they're faster than the Kim1 code from Byte magazine that I
kludged to work in 65816 then I'm open to it too!

I would like to facilitate the creation of a IIgs tool set that makes
encryption routines available to all IIgs programmers.
Then in particular, I'd like to see some form of secure transport
mechanism implemented on the IIgs to see what is feasible in terms of
performance.

Regards,
Andrew