Paper 2010/172

Chosen Ciphertext Secure Encryption over Semi-smooth Subgroup

Qixiang Mei, Bao Li, Xianhui Lu, and Dingding Jia

Abstract

In this paper we propose two public key encryption schemes over the semi-smooth subgroup introduced by Groth05. Both the schemes are proved secure against chosen ciphertext attacks under the factoring assumption. Since the domain of exponents is much smaller, both our schemes are significantly more efficient than Hofheiz-Kiltz 2009 encryption.

Metadata
Available format(s)
PS
Category
Public-key cryptography
Publication info
Published elsewhere. Unknown where it was published
Contact author(s)
nupfster @ gmail com
nupf @ 163 com
History
2010-04-04: revised
2010-04-01: received
See all versions
Short URL
https://ia.cr/2010/172
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2010/172,
      author = {Qixiang Mei and Bao Li and Xianhui Lu and Dingding Jia},
      title = {Chosen Ciphertext Secure Encryption over Semi-smooth Subgroup},
      howpublished = {Cryptology ePrint Archive, Paper 2010/172},
      year = {2010},
      note = {\url{https://eprint.iacr.org/2010/172}},
      url = {https://eprint.iacr.org/2010/172}
}
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