Unilateral session key shifting

Details Unilateral session key shifting Unilateral session key shifting

2008-04-08

2008-04-08

Jung, David Y (Department: 2134)

Information security

Prevention of unauthorized use of data including prevention...

C726S027000, C726S003000

Reexamination Certificate

active

10824162

ABSTRACT:
A system and method that facilitate secure communication employing dialog session keys that can be shifted unilaterally is provided. A key exchange key can further be employed to encrypt and/or decrypt the dialog session keys that are used to encrypt and/or decrypt message(s) that form a dialog between services. For example, the key exchange key can be unique to a service pair, while a first dialog session key is unique to message(s) originated by a first service, and, a second dialog session key is unique to message(s) originated by a second service.The system allows the dialog session keys to be independently managed by each endpoint (e.g., service). This makes updating the dialog session key very easy and lightweight compared to other messaging systems, where both endpoints must agree on the updated session key. An endpoint can shift the dialog session key for message(s) it originates based on a dialog session key policy (e.g., time-based, upon receipt of a change in the second dialog session key, and/or receipt of shifts of shifts the second dialog session key more than a threshold quantity of times in a given time period).

REFERENCES:
patent: 5689565 (1997-11-01), Spies et al.
patent: 5790677 (1998-08-01), Fox et al.
patent: 6134658 (2000-10-01), Multerer et al.
patent: 2002/0049900 (2002-04-01), Patrick
patent: 2003/0016653 (2003-01-01), Davis
patent: 2003/0021416 (2003-01-01), Brown et al.
patent: 2003/0074579 (2003-04-01), Della-Libera et al.
patent: 2003/0194093 (2003-10-01), Evans et al.
patent: 2003/0208677 (2003-11-01), Ayyagari et al.
patent: 2003/0217288 (2003-11-01), Guo et al.
patent: 2003/0226017 (2003-12-01), Palekar et al.
http://www.microsoft.com/presspass/exec/flessner/04-11flessnerteched.mspx, year 2002.
http://tools.ietf.org/html/draft-ietf-sip-rfc2543bis-09, section 26, year 2002.
http://www.verisign.com/wss/WS-SecureConversation.pdf, Dec. 18, 2002.
Observer-based chaos synchronization in the generalized chaotic Lorenz systems and its application to secure encryption Celikovsky, S.; Lynnyk, V.; Sebek, M.; Decision and Control, 2006 45th IEEE Conference on Dec. 13-15, 2006 pp. 3783-3788.
U.S. Appl. No. 10/824,161, filed Apr. 14, 2004, Scott A. Konersmann et al.
Maurizio Kliban Boyarsky, Public-key Cryptography and Password Protocols: The Multi-User Case, CCS'99, 1999, pp. 63-72, Singapore.
Emmanuel Bresson, et al., Provably Authenticated Group Diffie-Hellman Key Exchange, CCS'01, 2001, pp. 255-264, Philadelphia, Pennsylvania, USA.
Alain Mayer, et al., Secure Protocol Transformation via “Expansion”: From Two-party to Groups, CCS '99, 1999, pp. 83-92, Singapore.
Yuliang Zheng, et al., Compact and Unforgeable Key Establishment over an ATM Network, Monash University, 1998, 8 pages.
http://msdn.microsoft.com/msdnmag/issues/03/07/DesignsPatterns/, Jul. 2003.
http://tools.ietf.org/id/draft-ietf-sip-session-timer.10.txt, May 2003.
http://tools.ietf.org/html/draft-ieft-sip-rfc2543bis-09,section 26, yr—2002.
http://www.microsoft.com/presspass/exec/flessner/04-11flessnerteched.mspx, yr-2002.
http://www.ietf.org/rfc/rfc3325.txt, yr-2002.

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