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A new paradigm of hybrid encryption scheme

Kurosawa, K; Desmedt, Y; (2004) A new paradigm of hybrid encryption scheme. In: Franklin, M, (ed.) ADVANCES IN CRYPTOLOGY - CRYPTO 2004, PROCEEDINGS. (pp. 426 - 442). SPRINGER-VERLAG BERLIN

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In this paper, we show that a key encapsulation mechanism (KEM) does not have to be IND-CCA secure in the construction of hybrid encryption schemes, as was previously believed. That is, we present a more efficient hybrid encryption scheme than Shoup [12] by using a KEM which is not necessarily IND-CCA secure. Nevertheless, our scheme is secure in the sense of IND-CCA under the DDH assumption in the standard model. This result is further generalized to universal(2) projective hash families.

Type:Proceedings paper
Title:A new paradigm of hybrid encryption scheme
Event:24th Annual International Cryptology Conference
Location:Santa Barbara, CA
Dates:2004-08-15 - 2004-08-19
Keywords:hybrid encryption, KEM, standard model
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Computer Science

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