Thanks Ulrich for your email below, It didn't make it to gnupg-users@gnupg.org & to http://lists.gnupg.org/pipermail/gnupg-users/2013-March/date.html#end
so I'm appending it & will point to it from https://en.wikipedia.org/wiki/International_Data_Encryption_Algorithm#Availability ------------------------------ > From: Ulrich Mueller <ulm @ gentoo . o r g> > Date: Tue, 26 Mar 2013 22:19:37 +0100 > > >>>>> On Tue, 26 Mar 2013, Julian H Stacey wrote: > > > OK I added Ulrich M to cc > > He can add URL to wikipedia of expiry date of Japan IDEA paent > > if he wants, or I will if he mails it me. > > A dead patent is a good patent ;-) > > IANAL, TINLA, but the term of patent in Japan seems to be 20 years and > it was filed in 1991. Concerning the exact date, here's what I had > written in my message to the FSF, about one year ago: > > | To the best of my knowledge, the IDEA algorithm was covered by the > | following patents held by Ascom Tech AG, Bern, Switzerland: > | - Europe: EP0482154 [1] > | - U.S.: 5,214,703 [2] > | - Japan: JP3225440 > | These patents were filed in 1991. All sources (see [3] and [4] and > | references cited therein) seem to agree that the European and the > | Japanese patent both have expired on 2011-05-16. > | > | About the U.S. patent the situation seems not so clear, as there are > | several expiry dates mentioned. The PGP FAQ [3] says it has expired on > | 2010-05-25 whereas Wikipedia [4,5] mentions 2011-05-16 and 2012-01-07. > | However, none of these dates is later than 2012-01-07. So I think it > | is safe to assume that the U.S. patent has expired, too. > | > | [1] <http://register.epoline.org/espacenet/application?number=EP91908542> > | [2] <http://www.google.com/patents?vid=5214703> > | [3] <http://www.pgp.net/pgpnet/pgp-faq/#PATENT-IDEA> > | [4] <http://en.wikipedia.org/wiki/International_Data_Encryption_Algorithm> > | [5] > <http://en.wikipedia.org/wiki/Talk:International_Data_Encryption_Algorithm#Explanation_of_U.S._patent_expiration> > > Ulrich ------------------------------ Cheers, Julian -- Julian Stacey, BSD Unix Linux C Sys Eng Consultant, Munich http://berklix.com Reply below not above, like a play script. Indent old text with "> ". Send plain text. No quoted-printable, HTML, base64, multipart/alternative. _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
