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IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences
Article . 2009 . Peer-reviewed
Full-Text: http://www.jstage.jst.go.jp/article/transfun/E92.A/10/E92.A_10_2644/_pdf
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IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences
Article . 2009 . Peer-reviewed
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On the Security of a Conditional Proxy Re-Encryption

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2009 English Publisher:Institute of Electronics, Information and Communications Engineers (IEICE)Journal:IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, volume E92-A, pages 2,644-2,647 (issn: 0916-8508, eissn: 1745-1337, Copyright policy )
Authors: ZHANG, Xi; CHEN, Min-Rong;

doi: 10.1587/transfun.e92.a.2644

On the Security of a Conditional Proxy Re-Encryption

Abstract

To enable fine-grained delegations for proxy re-encryption systems, in AsiaCCS'09, Weng et al.'s introduced the concept of conditional proxy re-encryption (C-PRE), in which the proxy can convert a ciphertext only if a specified condition is satisfied. Weng et al. also proposed a C-PRE scheme, and claimed that their scheme is secure against chosen-ciphertext attack (CCA). In this paper, we show that their scheme is not CCA-secure under their defined security model.

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Keywords

cryptanalysis, conditional proxy re-encryption, chosen-ciphertext attack

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average