RE: RC4 license

Mark Gavin <[email protected]> Thu, 24 Aug 2000 17:24:05 -0400
Newsgroups gmane.ietf.sfl
Message-ID <p04320403b5cb40c01078@[63.100.177.66]>
>I have been told by reliable sources that Patent 4,405,829 expires on 20
>September 2000.
>
>============================================
>John Pawling, [email protected]
>Wang Government Services, Inc.,
>A Getronics Company
>============================================
>
>
>-----Original Message-----
>From: Bob Smith [mailto:[email protected]]
>Sent: Thursday, August 24, 2000 2:42 PM
>To: [email protected]
>Subject: RC4 license
>
>
>
>I am planning to commercially release a program that uses SFL. Do I have to
>buy a license from RSA to use the RC2 and RC4 algorithms found in the
>crypto32 library?
>
>Bob



John,
  The RC4 algorithm and the RSA algorithm are two very different 
items.  As far as I know; RC4 is an RSA trade secret and is not 
covered under any patents, or at least not the patent for the RSA 
algorithm.

-- 

Mark Gavin
Vice President, Software Development
Digital Applications, Inc.
60 South Lansdowne Avenue
Lansdowne, PA 19050
(610) 284-4006
http://www.digapp.com