Improved efficiency of Kiltz07-KEM

Xianhui Lu; Xuejia Lai; Dake He

Paper 2008/312

Improved efficiency of Kiltz07-KEM

Xianhui Lu, Xuejia Lai, and Dake He

Abstract

Kiltz proposed a practical key encapsulation mechanism(Kiltz07-KEM) which is secure against adaptive chosen ciphertext attacks(IND-CCA2) under the gap hashed Diffie-Hellman(GHDH) assumption\cite{Kiltz2007}. We show a variant of Kiltz07-KEM which is more efficient than Kiltz07-KEM in encryption. The new scheme can be proved to be IND-CCA2 secure under the same assumption, GHDH.

Metadata

Available format(s): PDF
Publication info: Published elsewhere. Unknown where it was published
Keywords: KEM IND-CCA2 GHDH
Contact author(s): luxianhui @ gmail com
History: 2008-07-27: received
Short URL: https://ia.cr/2008/312
License: CC BY

BibTeX

@misc{cryptoeprint:2008/312,
      author = {Xianhui Lu and Xuejia Lai and Dake He},
      title = {Improved efficiency of Kiltz07-{KEM}},
      howpublished = {Cryptology {ePrint} Archive, Paper 2008/312},
      year = {2008},
      url = {https://eprint.iacr.org/2008/312}
}