From: Mixmaster <mixmaster@remail.obscura.com>
Date: Tue, 16 Apr 1996 14:10:59 +0800
To: cypherpunks@toad.com
Subject: patent licenses
Message-ID: <199604152140.OAA02717@sirius.infonex.com>
MIME-Version: 1.0
Content-Type: text/plain


Simon Spero <ses@tipper.oit.unc.edu> writes:

>Well, if you're using RC4, you're probably using some sort of public-key 
>based key exchange, which you're probably going to need to licence, and 
>BSAFE is the easiest way to do that,  so RC4 is pretty much a freebie

If the Diffie-Hellmann patent covers all kind of public key crypto,
you need a license from Cylink, i.e. BSAFE is not enough, and if it
doesn't you can use El Gamal without a license.