Welcome to the resource topic for 2005/261
Title:
The Cramer-Shoup Encryption Scheme is Plaintext Aware in the Standard Model
Authors: Alexander W. Dent
Abstract:In this paper we examine the security criteria for a KEM and a DEM that are su±cient for the overall hybrid encryption scheme to be plaintext-aware in the standard model. We apply this theory to the Cramer-Shoup hybrid scheme acting on ¯xed length messages and deduce that the Cramer-Shoup scheme is plaintext-aware in the standard model. This answers a previously open conjecture of Bellare and Palacio on the existence of plaintext-aware encryption schemes.
ePrint: https://eprint.iacr.org/2005/261
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