On Mon, Jan 29, 2001 at 07:26:19AM -0800, Stephen Zander wrote:
> >>>>> "David" == David Starner <dstarner98@aasaa.ofe.org> writes:
> >> haval.cpp - Copyright 1992 Yuliang Zheng.
> >> idea.cpp - Copyright 1992 Colin Plumb.
> >> mars.cpp - Copyright 1998 Brian Gladman.
> >> md2.cpp - Copyright 1994, 1995 Sun Microsystems, Inc.
> >> serpent.cpp - Copyright 1998, 1999 Brian Gladman and Sam
> >> Simpson.
>
> David> What are the licenses on these documents? Are they
> David> compatible and free licenses?
>
> See below for such information as is contained in these files:
>
> haval.cpp
This doesn't seem to be a problem.
> idea.cpp
This could be a serious problem. What's the current Debian stance on
IDEA? Can it go in non-US/main, or just non-US/non-free?
>
> mars.cpp
>
> // mars.cpp - modified by Sean Woods from Brian Gladman's mars6.c for Crypto++
> // key setup updated by Wei Dai to reflect IBM's "tweak" proposed in August 1999
>
> /* This is an independent implementation of the MARS encryption */
> /* algorithm designed by a team at IBM as a candidate for the US */
> /* NIST Advanced Encryption Standard (AES) effort. The algorithm */
> /* is subject to Patent action by IBM, who intend to offer royalty */
> /* free use if a Patent is granted. */
> /* */
> /* Copyright in this implementation is held by Dr B R Gladman but */
> /* I hereby give permission for its free direct or derivative use */
> /* subject to acknowledgment of its origin and compliance with any */
> /* constraints that IBM place on the use of the MARS algorithm. */
> /* */
> /* Dr Brian Gladman (gladman@seven77.demon.co.uk) 4th October 1998 */
>
Well, it's unclear what IBM thinks about this algorithm, so the status
here is unclear.
> md2.cpp
No problems here.
> serpent.cpp
This is the same as the other MARS one, I think. They are talking
about the same algorithm, right?
>
> I'm sure theat md2.cpp is OK. What about the others?
Well, the two major questions are IDEA and MARS. I'm sure people have
already made a decision about IDEA, but Ihave no idea about MARS. I
would think it would have patent-unencumbered since it was submitted
as an AES candidate, but since it didn't win, I'm not sure what the
status is.
sam th
sam@uchicago.edu
http://www.abisource.com/~sam/
GnuPG Key:
http://www.abisource.com/~sam/key
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