Date: Sun, 16 Apr 2000 23:21:30 +0100 From: David Malone <dwmalone@maths.tcd.ie> To: Kris Kennaway <kris@FreeBSD.org> Cc: hackers@FreeBSD.org Subject: Re: OpenSSL and IDEA. Message-ID: <200004162321.aa20659@salmon.maths.tcd.ie> In-Reply-To: Your message of "Sun, 16 Apr 2000 13:04:22 PDT." <Pine.BSF.4.21.0004161302430.79189-100000@freefall.freebsd.org>
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> > (According to Applied Cryptography, IDEA is free for non-comercial > > use. As the source code is being distributed via cvs anyway, I > > can't see a reason why it isn't being included in any of the > > branches.) > > I was under the impression it was restricted (patented) in the US and in > some parts of europe - not having a clearer idea about where it was safe > to use, I thought it better not to include it at all. If you can point me > to something which explains where it's restricted and not, and under what > terms, I'd be most appreciative :) AFAIK it is patented, but they alow use it in a non commercial setting. Applied Cryptography says: IDEA is patented in Europe and the United States [1012,1013]. The patent is held by Ascom-Tech AG. No license fee is required for non-commercial use. Commercial users interested in licensing the algorithm should contach Ascom Systec AG, Dept CMVV, Gewerbepark, CH-5506, M\"agenwill, Switzerlans; +41 64 56 83; Fax: +41 64 56 59 90; idea@ascom.ch. The references are to International Patent PCT/CH91/00117, 28 Nov 1991 and US Patent #5,214,703, 25 May 1993. A quick web search turned up http://www.massconfusion.com/ssh/ssh_patent_issues.html which contains a letter from Ascom which states their position. It looks like there should be no problem including the code and compiling it conditionally (it cites PGP as a valid piece of free usage, for example). David. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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