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题名:
attribute-based conditional proxy re-encryption with chosen-ciphertext security
作者: Zhao Jing ; Feng Dengguo ; Zhang Zhenfeng
会议文集: GLOBECOM - IEEE Global Telecommunications Conference
会议名称: 53rd IEEE Global Communications Conference, GLOBECOM 2010
会议日期: 40883
出版日期: 2010
会议地点: Miami, FL, United states
关键词: Telecommunication
出版地: United States
收录类别: EI
ISBN: 9781420000000
部门归属: (1) State Key Laboratory of Information Security, Graduate School of Chinese Academy of Sciences, Beijing, China; (2) State Key Laboratory of Information Security, Institute of Software, Chinese Academy of Sciences, Beijing, China
英文摘要: Proxy re-encryption is a cryptographic primitive which enables a ciphertext encrypted under a delegator's public key to be translated into a ciphertext of a delegatee by a semi-trusted proxy. Conditional proxy re-encryption (CPRE) is a variant of proxy re-encryption which allows the delegator to control the delegation of decryption rights with certain conditional value. The existing CPRE schemes left an open problem about how to construct CCA-secure CPRE schemes supporting Boolean predicates over conditions. In this paper, we propose attribute-based CPRE (AB-CPRE) in which the delegator could implement attributed-based control on the delegation of decryption rights by setting conditions in the form of access structure and attribute set. AB-CPRE is suitable for applications where fine-grained control of the decryption delegation is necessary. We formalize definitions and security notions for AB-CPRE and prove that the proposed scheme is chosen-ciphertext secure under the 3-Quotient Decision Bilinear Diffie-Hellman (3-QDBDH) assumption. ©2010 IEEE.
内容类型: 会议论文
URI标识: http://ir.iscas.ac.cn/handle/311060/8670
Appears in Collections:信息安全国家重点实验室_会议论文

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Recommended Citation:
Zhao Jing,Feng Dengguo,Zhang Zhenfeng. attribute-based conditional proxy re-encryption with chosen-ciphertext security[C]. 见:53rd IEEE Global Communications Conference, GLOBECOM 2010. Miami, FL, United states. 40883.
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