## CryptoDB

### Paper: On the Security of a Bidirectional Proxy Re-Encryption Scheme from PKC 2010

Authors: Jian Weng Yunlei Zhao URL: http://eprint.iacr.org/2010/319 Search ePrint Search Google In PKC 2010, Matsuda, Nishimaki and Tanaka proposed a bidirectional proxy re-encryption (PRE) scheme without bilinear maps, and claimed that their scheme is chosen-ciphertext secure in the standard model. However, by giving a concrete attack, in this paper we indicate that their PRE scheme fails to achieve the chosen-ciphertext security. The purpose of this paper is to clarify the fact that, it is still an open problem to come up with a chosen-ciphertext secure PRE scheme without bilinear maps in the standard model.
##### BibTeX
@misc{eprint-2010-23220,
title={On the Security of a Bidirectional Proxy Re-Encryption Scheme from PKC 2010},
booktitle={IACR Eprint archive},
keywords={public-key cryptography / public-key cryptography},
url={http://eprint.iacr.org/2010/319},
note={ cryptjweng@gmail.com 14759 received 27 May 2010, last revised 30 May 2010},
author={Jian Weng and Yunlei Zhao},
year=2010
}