A Note on An Encryption Scheme of Kurosawa and Desmedt

  title={A Note on An Encryption Scheme of Kurosawa and Desmedt},
  author={Rosario Gennaro and Victor Shoup},
  journal={IACR Cryptology ePrint Archive},
Recently, Kurosawa and Desmedt presented a new hybrid encryption scheme which is secure against adaptive chosen-ciphertext attack. Their scheme is a modification of the Cramer-Shoup encryption scheme. Its major advantage with respect to CramerShoup is that it saves the computation of one exponentiation and produces shorter ciphertexts. However, the proof presented by Kurosawa and Desmedt relies on the use of information-theoretic key derivation and message authentication functions. In this note… CONTINUE READING

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