[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
IDEA patent
- To: cypherpunks@toad.com
- Subject: IDEA patent
- From: nobody@cypherpunks.ca (John Anonymous MacDonald)
- Date: Fri, 15 Nov 1996 20:58:01 -0800
- Comments: There is no way to determine the originator of this message.If you wish to be blocked from receiving all anonymous mail, sendyour request to the <remailer-operators@c2.org> mailing list.The operator of this particular remailer can be reached at<remailer-admin@cypherpunks.ca>.
- Sender: owner-cypherpunks@toad.com
IDEA is a good algorithm much faster than 3DES and
probably stronger but its not very popular outside
of PGP because it is patented.
I remember someone posting here or in another
crypto list about a modified keyschedual to allow
keys of weird size.
My question is could this modification or
something more proven like PRNG-generated subkeys
be used to avoid the IDEA patent? Everyone says it
only takes a small change to avoid a patent. The
problem is a small change can break an algorithm.
Some algorithms like Blowfish generate subkeys
from a PRNG so it might be a safe change for IDEA.
I'm posting this anonymously because I dont know
what peoples feelings are on patent avoidance.