Title

A new variant of the Cramer-Shoup KEM secure against chosen ciphertext attack

RIS ID

31066

Publication Details

Baek, J., Susilo, W., Liu, J. & Zhou, J. (2009). A new variant of the Cramer-Shoup KEM secure against chosen ciphertext attack. M. Abadalla, P. Fouque, D. Pointcheval & D. Vergnaud In The 7th International Conference on Applied Cryptography and Network Security (ACNS 2009), 2 June 2009, Paris-Rocquencourt France. Lecture Notes in Computer Science, 5536 143-155.

Abstract

We propose a new variant of the Cramer-Shoup KEM (key encapsulation mechanism). The proposed variant is more e±cient than the original Cramer-Shoup KEM scheme in terms of public key size and encapsulation cost, but is proven to be (still) secure against chosen ciphertext attack in the standard model, relative to the Decisional Di±e-Hellman problem.

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Link to publisher version (DOI)

http://dx.doi.org/10.1007/978-3-642-01957-9_9