The original note was received August 10, 2000 From: dnjake@us.ibm.com This revision was received February 1, 2001 From: Chuck AdamsJr 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