Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4770
Title: Security arguments for the UM key agreement protocol in the NIST SP 800-56A standard
Authors: Menezes, Alfred
Ustaoğlu, Berkant
Keywords: Network protocols
Key agreement protocols
NIST SP 800-56A
Provable security
Security model
Publisher: Association for Computing Machinery (ACM)
Source: Menezes, A., and Ustaoğlu, B. (2008, March). Security arguments for the UM key agreement protocol in the NIST SP 800-56A standard. Paper presented at the Proceedings of the 2008 ACM Symposium on Information, Computer and Communications Security, Tokyo, Japan (261-270). New York, N.Y. : ACM Press.
Abstract: The Unified Model (UM) key agreement protocol is an efficient Diffie-Hellman scheme that has been included in many cryptographic standards, most recently in the NIST SP 800-56A standard. The UM protocol is believed to possess all important security attributes including key authentication and secrecy, resistance to unknown key-share attacks, forward secrecy, resistance to known-session key attacks, and resistance to leakage of ephemeral private keys, but is known to succumb to key-compromise impersonation attacks. In this paper we present a strengthening of the Canetti-Krawczyk security definition for key agreement that captures resistance to all important attacks that have been identified in the literature with the exception of key-compromise impersonation attacks. We then present a reductionist security proof that the UM protocol satisfies this new definition in the random oracle model under the Gap Diffie-Hellman assumption. Copyright 2008 ACM.
Description: ACM Symposium on Information, Computer and Communications Security, ASIACCS '08; Tokyo; Japan; 18 March 2008 through 20 March 2008
URI: http://doi.org/10.1145/1368310.1368348
http://hdl.handle.net/11147/4770
ISBN: 9781595939791
Appears in Collections:Mathematics / Matematik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

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