IPR Details
Russ Housley's Statement about IPR related to RFC 4359 belonging to The United States of America as represented by the Secretary of the Navy

Submitted: February 8, 2008 under the rules in RFC 3979 as updated by RFC 4879

Note: Updates to IPR disclosures must only be made by authorized representatives of the original submitters. Updates will automatically be forwarded to the current Patent Holder's Contact and to the Submitter of the original IPR disclosure.

I. Possible Patent Holder/Applicant ("Patent Holder")

Holder legal name The United States of America as represented by the Secretary of the Navy

II. Contact Information for the IETF Participant Whose Personal Belief Triggered this Disclosure

Name Russ Housley
Email housley@vigilaec.com
Other info

918 Spring Knoll Drive
Herndon, VA 20170 USA
T: +1 703-435-1775

III. IETF Document or Other Contribution to Which this IPR Disclosure Relates

RFC: RFC4359 ("The Use of RSA/SHA-1 Signatures within Encapsulating Security Payload (ESP) and Authentication Header (AH)")

IV. Disclosure of Patent Information i.e., patents or patent applications required to be disclosed by RFC 3979 as updated by RFC 4879

A. For granted patents or published pending patent applications, please provide the following information:

Patent, Serial, Publication, Registration, or Application/File number(s)

U.S. Patent 5,511,122
Date: April 23, 1996
Country: USA

Notes: To: jis@mit.edu
Subject: US Patent 5,511,122
From: Ran Atkinson <rja@cisco.com>
Date: Thu, 11 Jul 1996 11:10:18 PDT
Cc: ipsec@TIS.COM
Sender: ipsec-approval@neptune.tis.com


To: Jeff Schiller, Security Area Director, IETF, <jis@mit.edu>
From: Randall Atkinson, <rja@inet.org>
Subject: Notification of patent

I have just been officially notified that US Patent 5, 511, 122 on "Intermediate Network Authentication" was issued to me on 23 April 1996 with all rights assigned to The United States of America as represented by the Secretary of the Navy. The filing date on this patent is 3 June 1994 and the work was begun in 1991.

The funded project work behind this patent was unrelated to IPsec and primarily related to a need for intermediate network authentication of datagrams in a network that performed intermediate fragmentation of datagrams.

I am not a lawyer and I am not making any kind of legal representation, but I believe that this patent DOES NOT create any issues with respect to current IPsec RFCs or any current IPsec draft that I am aware of or any other IETF standard that I'm aware of. The patent might affect a (hypothetical) AH transform proposal that used cryptographic digital signatures based on asymmetric cryptography (e.g. an RSA digital signature), as distinguished from all current standards-track documents and online proposals (which I believe all use keyed one-way cryptographic hash functions).

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending No

V. Contact Information of Submitter of this Form

Submitter name
Submitter email

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