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Efficient eCK-Secure Authenticated Key Exchange Protocols in the Standard Model

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8233)

Abstract

The extended CanettiKrawczyk (eCK) security model, is widely used to provide security arguments for authenticated key exchange protocols that capture leakage of various kinds of secret information like the long-term private key and session-specific secret state. In this paper, we study the open problem on constructing eCK secure AKE protocol without random oracles and NAXOS like trick. A generic construction GC-KKN satisfying those requirements is first given relying on standard cryptographic primitives. On the second a concrete protocol is proposed which is the first eCK secure protocol in the standard model under both standard assumptions and post-specified peer setting. Both proposed schemes can be more efficiently implemented with secure device than previous eCK secure protocols in the standard model, where the secure device might be normally used to store the long-term private key and implement algorithms of protocol which require to be resilience of state leakage.

Keywords

eCK model authenticated key exchange standard model key encapsulation mechanism non-interactive key exchange 

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Copyright information

© Springer International Publishing Switzerland 2013

Authors and Affiliations

  1. 1.Horst Grtz Institute for IT SecurityRuhr-University BochumGermany

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