Welcome to the resource topic for 2006/207
Title:
The Kurosawa-Desmedt Key Encapsulation is not Chosen-Ciphertext Secure
Authors: Javier Herranz, Dennis Hofheinz, Eike Kiltz
Abstract:At CRYPTO 2004, Kurosawa and Desmedt presented a hybrid public-key encryption scheme that is chosen-ciphertext secure in the standard model. Until now it was unknown if the key-encapsulation part of the Kurosawa-Desmedt scheme by itself is still chosen-ciphertext secure or not. In this short note we answer this question to the negative, namely we present a simple chosen-ciphertext attack on the Kurosawa-Desmedt key encapsulation mechanism.
ePrint: https://eprint.iacr.org/2006/207
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