Cryptology ePrint Archive: Report 2016/032

On the Leakage-Resilient Key Exchange

Janaka Alawatugoda

Abstract: Typically, secure channels are constructed from an authenticated key exchange (AKE) protocol, which authenticates the communicating parties based on long-term public keys and establishes secret session keys. In this paper we address the partial leakage of long-term secret keys of key exchange protocol participants due to various side-channel attacks. Security models for two-party authenticated key exchange protocols have developed over time to provide security even when the adversary learns certain secret values. This paper combines and extends the advances of security modelling for AKE protocols addressing more granular partial leakage of long-term secrets of protocol participants.

Category / Keywords: cryptographic protocols / Public Key Cryptography, Key Exchange Protocols, Leakage-Resilient Cryptography

Date: received 12 Jan 2016

Contact author: janaka alawatugoda at qut edu au

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Version: 20160113:113922 (All versions of this report)

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