At 11:35 AM 6/24/98 +0200, you wrote:
>Sean Breheny wrote:
>>
>> On Tue, 23 Jun 1998, Andy Kunz wrote:
>>
>> > >Sorry, I don't have any DES code but if you need a fast (quite faster
>> > >than any DES implementation) and secure (128 bit key, no known attack to
>> > >the algorithm) you can get my TEA code at my page:
>> > >http://members.tripod.com/~mdileo/
>> > >You can find there the routine for the original TEA and for the security
>> > >improved TEA-N code.
>>
>> Microchip app note AN583 covers implementing DES on a 17C42. I haven't
>> read it (or used it, of course) so I can't vouch for its accuracy! <G>
>>
>> Sean
>
>I know, but if you live outside the U.S.A. they can't give you the code
>because "strong" crypto is considered a weapon (even if DES is no longer
>strong as it used to be). That's wy, on my page, I asked non-US citizen
>to not download the code from the US-located provider I use and to
>request the routines by email (I do not live in the U.S.A. so I am not
>exporting anything from there).
>

Marco,

        Due to the export rules of U.S. I haven't found the AN583 from Microchip
.
It's the DES Implementation of Microchip but they didn't distribute the
code. Do you know where I can get it? Perhaps you have it or something like
that. I have already been to your site. It's pretty intersting the TEA
Crypto, but I am would like to see the implementation of DES also.

Thank you.

Ariel.