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Whats with the patent on IDEA?

April 26, 2017IDEA patent

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Whats with the patent on IDEA?

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IDEA is patented in the USA (US 5,214,703), Europe (EP-B-0482154)and Japan (JP 3225440) by Ascom Systec AG. This patent expires 25 May 2010 (USA) or 16 May 2011 (Europe and Japan). For strictly non-commercial use, the licence fee is waved by MediaCrypt AG. If you need to use PGP 2.x or GPG with IDEA (i.e. for compatibility with the 2.x versions) for commercial use, you should contact MediaCrypt AG who are the distributor for the IDEA algorithm license for Ascom Systec AG, the patent holders for IDEA. They sell individual and site licenses for using IDEA in PGP. Contact: MediaCrypt AG Technoparkstrasse 1 8005 Zurich Switzerland Tel ++41 1 445 3070 Fax ++41 1 445 3071 For more information on patents in general, see the patent section of Ius Mentis.

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>). IDEA uses a 128 bit user supplied key to perform a series of nonlinear mathematical transformations on a 64 bit data block.