chosen-ciphertext secure bidirectional proxy re-encryption schemes without pairings

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	chosen-ciphertext secure bidirectional proxy re-encryption schemes without pairings
	Weng Jian ; Deng Robert H. ; Liu Shengli ; Chen Kefei
刊名	Information Sciences
	2010
卷号	180 期号:24 页码:5077-5089
关键词	Network security
ISSN号	200255
学科主题	Computer Science, Information Systems
收录类别	EI,SCIENCEDIRECT,ACM
语种	英语
WOS记录号	WOS:000283968100021
公开日期	2011-05-23
附注	Proxy re-encryption (PRE) is a useful primitive that allows a semi-trusted proxy to transform a ciphertext encrypted under one key into an encryption of the same plaintext under another key. A PRE scheme is bidirectional if the proxy is able to transform ciphertexts in both directions. In ACM CCS07, Canetti and Hohenberger presented a bidirectional PRE scheme with chosen-ciphertext security, which captures the indistinguishability of ciphertexts even if the adversary has access to the standard decryption oracle as well as a re-encryption oracle and a re-encryption key oracle. They also left an important open problem to come up with a chosen-ciphertext secure PRE scheme without pairings. To resolve this problem, we propose a bidirectional PRE scheme without pairings, and prove its chosen-ciphertext security under the computational Diffie-Hellman assumption in the random oracle model. Based on this scheme, we further present a non-transitive bidirectional PRE scheme, in which the proxy alone cannot re-delegate the decryption rights. © 2010 Elsevier Inc. All rights reserved.
内容类型	期刊论文
源URL	[http://124.16.136.157/handle/311060/9682]
专题	软件研究所_软件所图书馆_期刊论文
推荐引用方式 GB/T 7714	Weng Jian,Deng Robert H.,Liu Shengli,et al. chosen-ciphertext secure bidirectional proxy re-encryption schemes without pairings[J]. Information Sciences,2010,180(24):5077-5089.
APA	Weng Jian,Deng Robert H.,Liu Shengli,&Chen Kefei.(2010).chosen-ciphertext secure bidirectional proxy re-encryption schemes without pairings.Information Sciences,180(24),5077-5089.
MLA	Weng Jian,et al."chosen-ciphertext secure bidirectional proxy re-encryption schemes without pairings".Information Sciences 180.24(2010):5077-5089.