The original note was received August 10, 2000
From: dnjake@us.ibm.com
<!---

Implementations of the Diffie-Hellman algorithm as used by S/MIME
(RFC 2630 and RFC 2631) and PKIX (RFC 2459) may require a license to IBM
patent 5953420 (Method and Apparatus for Establishing an Authenticated 
Shared Secret Value between a Pair of Users).

Where there is a necessary dependence upon this patent to implement the
algorithm, IBM  will provide, upon written request from implementers of
S/MIME or PKIX,  a non-exclusive license under reasonable and
non-discriminatory terms and conditions, in accordance with IBM's usual
licensing practices.

Any party wishing to request a license should write to :

Gerrianne Delaney
IBM Director of Licensing
IBM Corporation
North Castle Drive, Armonk, N.Y., 10504
--->
This revision was received February 1, 2001
From: Chuck AdamsJr <wcadams@us.ibm.com>

Revised IETF Patent Policy Posting:

Implementations of the Diffie-Hellman algorithm as used by S/MIME:
- RFC 2630 Cryptographic Message Syntax
- RFC 2631 Diffie-Hellman Key Agreement Method
- RFC 2632 S/MIME Version 3 Certificate Handling
- RFC 2633 S/MIME Version 3 Message Specification
- RFC 2634 Enhanced Security Services for S/MIME

and by  PKIX:
- RFC 2459 Internet X.509 Public Key Infrastructure Certificate and CRL
Profile

may require a license to IBM patent 5953420 (Method and Apparatus for
Establishing an Authenticated
Shared Secret Value between a Pair of Users).

Where there is a necessary dependence upon this patent to implement the
algorithms, IBM  will provide, upon written request from implementers of
S/MIME or PKIX,  a non-exclusive license under reasonable and
non-discriminatory terms and conditions, in accordance with IBM's usual
licensing practices.

Any party wishing to request a license should write to :

Gerrianne Delaney
IBM Director of Licensing
IBM Corporation
North Castle Drive, Armonk, N.Y., 10504