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Paper 2010/319
On the Security of a Bidirectional Proxy Re-Encryption Scheme from PKC 2010
Jian Weng and Yunlei Zhao
Abstract
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.
Metadata
- Available format(s)
- PDF PS
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- public-key cryptography
- Contact author(s)
- cryptjweng @ gmail com
- History
- 2010-05-31: received
- Short URL
- https://ia.cr/2010/319
- License
-
CC BY