RE: Legal claims on encryption and authentication algorithm

["Glawitsch, Gregor" <[e-mail]>]

The DES patent is owned by IBM, but IBM has waived the license 
fee, i.e. anyone can use DES free of charge.

The DES patent is **not** owned by RSA Data Security.

On a sidenote, the patent for the RSA public key algorithm will expire 
in how many months?  11?  13?   :-)))

Greg Glawitsch
Network Associates, Inc.

> In case this group has not heard, RSA Data Security has
> clarified that there is no charge for using the DESX algorithm,
> which is described in draft-simpson-desx-02.txt.
>           --Bob Baldwin
>             Technical Director
>             RSA Data Security
> 
> -----Original Message-----
> From: [e-mail] [mailto:[e-mail]]
> Sent: Thursday, January 28, 1999 7:52 AM
> To: [e-mail]
> Subject: Legal claims on encryption and authentication algorithm
> 
> 
> 
> Hello,
>      While reading RFC 1321, I noted that if we use MD5, we must state
> that
> it was developped by RSA Data Security, Inc.
>      We use other encryption and authentication algorithms. Is there any
> legal claims (copyrights, patents, etc.) tied to the following algorithms?
> - Blowfish
> - DES
> - 3DES
> - SHA-1
>      Thank you