Subject: Re: no-idea, no-rc5 and no-mdc2 for openssl
To: Jaromir Dolecek <>
From: Klaus Klein <>
List: tech-pkg
Date: 03/01/2004 23:07:47
On Monday 01 March 2004 22:28, Jaromir Dolecek wrote:
> Jeremy C. Reed wrote:
> > In November, I mentioned that Red Hat and Debian Linux provide
> > their openssl with no-idea, no-rc5 and no-mdc2. And the feedback I
> > received seemed this should be done with pkgsrc too.
> It's my understanding rc5 use doesn't need commercial licence
> anymore - didn't the patent expire two years ago? Other than that,
> this sounds fine.

You're probably mixing this up with RSA, which expired in 2000.
The RC5 patent is far more recent (issued in 1998) and is to expire
in 2015.

- Klaus