Cryptology ePrint Archive: Report 2009/451

Efficient Certificateless KEM in the Standard Model

Georg Lippold, Colin Boyd, Juan González Nieto

Abstract: We give a direct construction of a certificateless key encapsulation mechanism (KEM) in the standard model that is more efficient than the generic constructions proposed before by Huang and Wong \cite{DBLP:conf/acisp/HuangW07}. We use a direct construction from Kiltz and Galindo's KEM scheme \cite{DBLP:conf/acisp/KiltzG06} to obtain a certificateless KEM in the standard model; our construction is roughly twice as efficient as the generic construction. We also address the security flaw discovered by Selvi et al. \cite{cryptoeprint:2009:462}.

Category / Keywords: cryptographic protocols /

Publication Info: ICISC 2009

Date: received 14 Sep 2009, last revised 7 Mar 2010

Contact author: g lippold at qut edu au, c boyd at qut edu au, j gonzaleznieto at qut edu au

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Version: 20100307:233335 (All versions of this report)

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