Kurosawa, K and 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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Abstract
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 |
| ISBN: | 3-540-22668-0 |
| Keywords: | hybrid encryption, KEM, standard model |
| UCL classification: | UCL > School of BEAMS > Faculty of Engineering Science > Computer Science |
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