IDEA licensing issues
Robert J. Hansen
rjh at sixdemonbag.org
Tue Jan 22 00:23:21 CET 2008
Alan Olsen wrote:
> I have been trying to find what it takes to get a license for using
> IDEA with gpg.
The first question is why you need IDEA in the first place. It's a
usable cipher, but it's hardly a paragon of modern design. Better than
brute force attacks exist against at least 4.5 of its eight rounds, and
more may have been discovered since I last read the literature.
Assuming you need IDEA, the last I heard the terms of the patent license
involved it being free for noncommercial use.
The easiest way to get a license for IDEA for commercial use--and
probably the cheapest--is to buy a copy of the lowest-end PGP product.
Presto, you have a license to use IDEA for commercial purposes. Compile
the idea.c code, drop it in GnuPG, and you're off to the races.
Warning: I am not an IP lawyer, I am not even the equivalent of a drunk
IP lawyer. Consult your own legal counsel.
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