A new paradigm of hybrid encryption scheme.
In: Franklin, M, (ed.)
ADVANCES IN CRYPTOLOGY - CRYPTO 2004, PROCEEDINGS.
(pp. 426 - 442).
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  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.
|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
UCL > School of BEAMS > Faculty of Engineering Science
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