On Tue, Sep 24, 2002 at 08:51:11PM +0200, Markus Friedl wrote: > On Tue, Sep 24, 2002 at 08:29:52PM +0200, Ulf Moeller - Mailing Lists wrote:
>> By the way, OpenSSL has always included patented algorithms such as RSA and >> IDEA, together with warnings about patent issues in the documentation and >> compile time switches to disable algorithms that are known to be patented. > yes, but the idea and rc5 support can be disabled by removing the > directories, whereas the license in question is spread all > over the source tree. It's not a modified license, the OpenSSL license still applies. But as for IDEA and RC5, the software license is not the only thing you have to take into account, you also have to consider patents. Unlike for IDEA and RC5, there's an offer by Sun that says you can use their patents pertaining to that source code if you are willing to accept certain conditions. If you accept their conditions, you may compile OpenSSL with preprocessor symbol OPENSSL_SUN_GF2M_DIV defined, which enables a patented algorithm. The default configuration does not require you to accept Sun's conditions. Something else that is disabled in the default configuration is point compression for elliptic curves over binary fields; in this case it's because of a Certicom patent. I wouldn't mind if Certicom made a similar offer as Sun, but I'm afraid they won't. -- Bodo M�ller <[EMAIL PROTECTED]> PGP http://www.informatik.tu-darmstadt.de/TI/Mitarbeiter/moeller/0x36d2c658.html * TU Darmstadt, Theoretische Informatik, Alexanderstr. 10, D-64283 Darmstadt * Tel. +49-6151-16-6628, Fax +49-6151-16-6036 --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]
