Mailing List Archive: IDEA/RSA

IDEA/RSA

Jan 9, 2000, 12:39 PM

Post #1 of 5 (1013 views)

Hello,

I was browsing around and found a reference on adding support to gpg
for IDEA and RSA. It pointed to some c files in contrib but there
were no real instructions on what to do with them.

I have been trying to find out the licensing issues for using these
patented algorithms with gpg and finding out the procedure to add this
support. Also I know there are issues regarding the options settings
to support this one installed.

Can anyone help me? Even a pointer in the correct direction would be
a boon.

Thanks.
/Duncan
--
Duncan Watson oOoOo Climbing Trip Plan #4 - The oOoOo
Unix Sysadmin at Large oOoOo Canyonlands of CO in ???? oOoOo
climer@io.com oOoOo oOoOo
Portland, OR oOoOo oOoOo

Re: IDEA/RSA [ In reply to ]

johanw at vulcan

Jan 9, 2000, 3:39 PM

Post #2 of 5 (993 views)

Permalink

You, Duncan Watson, wrote:

> I was browsing around and found a reference on adding support to gpg
> for IDEA and RSA. It pointed to some c files in contrib but there
> were no real instructions on what to do with them.

Read the source. Below the legal stuff it says:

/* How to compile:
*
gcc -Wall -O2 -shared -fPIC -o idea idea.c
*/

and place the resulting executables in the gnupg dir. Then add to your
options file:

load-extension rsa
load-extension idea

and you're done.

> I have been trying to find out the licensing issues for using these
> patented algorithms

Sorry, details like these bothered me never enough to find that info.
I believe that some institute think they can patent IDEA (RSA is only
patented in the USA anyway) but I doubt that patent is valid in my
country (The Netherlands) anyway.

--
ir. J.C.A. Wevers // Physics and science fiction site:
johanw@vulcan.xs4all.nl // http://www.xs4all.nl/~johanw/index.html
PGP public keys at http://www.xs4all.nl/~johanw/pgpkeys.html

RE: IDEA/RSA [ In reply to ]

s.simpson at mia

Jan 10, 2000, 2:07 AM

Post #3 of 5 (991 views)

Permalink

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Duncan,

Not sure if you've had an answer to this but I would recommend
having a look at:
http://lists.gnupg.org/gnupg-users-199907/msg00061.html - this
offers the solution in some detail. I'd like to know if M.Roth
has made a proper web-page out of this?

Regards,

Sam Simpson
Communications Analyst
- -- http://www.scramdisk.clara.net/ for ScramDisk hard-drive
encryption & Delphi Crypto Components. PGP Keys available at the
same site.

> -----Original Message-----
> From: Duncan Watson [mailto:climer@io.com]
> Sent: 09 January 2000 19:47
> To: s.simpson@mia.co.uk
> Subject: IDEA/RSA
>
>
> Hello,
>
> I was browsing around and found a reference on adding support
to gpg
> for IDEA and RSA. It pointed to some c files in contrib but
there
> were no real instructions on what to do with them.
>
> I have been trying to find out the licensing issues for using
these
> patented algorithms with gpg and finding out the procedure to
> add this
> support. Also I know there are issues regarding the options
settings
> to support this one installed.
>
> Can anyone help me? Even a pointer in the correct direction
would be
> a boon.
>
> Thanks.
> /Duncan

-----BEGIN PGP SIGNATURE-----
Version: 6.0.2ckt http://members.tripod.com/IRFaiad/

iQA/AwUBOHmiE+0ty8FDP9tPEQLWtgCeJfiRQdm/Rm5cVSPBtZsguqnCtSMAoMXM
OhagDBRMmE9DtQvrpI0aLnjj
=McnT
-----END PGP SIGNATURE-----

Re: IDEA/RSA [ In reply to ]

ashleyjm at sagian

Jan 10, 2000, 3:56 AM

Post #4 of 5 (1011 views)

Permalink

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

>I was browsing around and found a reference on adding support to
> > gpg for IDEA and RSA. It pointed to some c files in contrib but
> there were no real instructions on what to do with them.

See the document "Replacing PGP 2.x with GnuPG" at
http://www.gnupg.org/gph/index.html.

Mike

-----BEGIN PGP SIGNATURE-----
Version: PGPfreeware 6.5.2 for non-commercial use <http://www.pgp.com>

iQA/AwUBOHm6y3WJ36LyFVfMEQLp0gCbB6jxm0QgNiYuJvIctyTH5JMMzWoAn2ye
oDHKcJ/3CkKgj96P5Q+c+kj4
=hSP+
-----END PGP SIGNATURE-----

Re: IDEA/RSA [ In reply to ]

peter at gerwinski

Jan 11, 2000, 5:12 AM

Post #5 of 5 (993 views)

Permalink

Hello!

Duncan Watson wrote:
> I have been trying to find out the licensing issues for using these
> patented algorithms with gpg [...]

See

http://www.ascom.ch/infosec/

and especially

http://www.ascom.ch/infosec/idea/online_order_form.html

for how someone can "own" a mathematical formula.

Next time they will patent the `sin' function ... :-(

Hope this helps,

Peter

--
http://home.pages.de/~Peter.Gerwinski/ - G-N-U GmbH: http://www.g-n-u.de
Maintainer GNU Pascal - http://home.pages.de/~GNU-Pascal/ - gpc-19990118
GnuPG key fingerprint: 9E7C 0FC4 8A62 5536 1730 A932 9834 65DB 2143 9422
keys: ftp://ftp.gerwinski.de/pub/keys/ - AntiSpam: http://spam.abuse.net