Paper 2010/172 Original: eprint.iacr.org/2010/172 ↗

Chosen Ciphertext Secure Encryption over Semi-smooth Subgroup

Qixiang Mei
Bao Li
Xianhui Lu
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)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2010-04-04: last updated
2010-04-01: published
Short URL
https://ia.cr/2010/172
License
https://creativecommons.org/licenses/by/4.0/

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},
      url = {https://eprint.iacr.org/2010/172}
}
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