Re: [avr-chat] Krypto Algo needed

[David Kelly]

On Tue, Aug 07, 2007 at 09:18:09AM -0400, Bob Paddock wrote:
> LibTomCrypt is the on mentioned in the WinAVR documentation:
>
> http://libtom.org/?page=features&newsitems=5&whatfile=crypt
>
> "LibTomCrypt is a fairly comprehensive, modular and portable
> cryptographic toolkit that provides developers with a vast array of
> well known published block ciphers, one-way hash functions, chaining
> modes, pseudo-random number generators, public key cryptography and a
> plethora of other routines.
>
> LibTomCrypt has been designed from the ground up to be very simple to
> use. It has a modular and standard API that allows new ciphers, hashes
> and PRNGs to be added or removed without change to the overall end
> application. It features easy to use functions and a complete user
> manual which has many source snippet examples.

I second the recommendation of LibTomCrypt. But I suggest one play with
its functions in a native supported environment. Then once one
identifies the modules one needs, gets some practice using them, strip
them out of the API when moving to the AVR. The LibTomCrypt API is
stack-heavy.

> LibTomCrypt is free for all purposes under the public domain. This
> includes commercial use, redistribution and even branching."

The best possible license, Public Domain!

Has been several months since I last had my nose in LibTomCrypt but
believe there has been some work at pulling interesting modules out for
lite embedded use.

--
David Kelly N4HHE, address@hidden
========================================================================
Whom computers would destroy, they must first drive mad.