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Title:
ciphertext policy attribute-based encryption from lattices: extended abstract
Author: Zhang Jiang ; Zhang Zhenfeng ; Ge Aijun
Source: ASIACCS 2012 - 7th ACM Symposium on Information, Computer and Communications Security
Conference Name: 7th ACM Symposium on Information, Computer and Communications Security, ASIACCS 2012
Conference Date: May 2, 2012 - May 4, 2012
Issued Date: 2012
Conference Place: Seoul, Korea, Republic of
Keyword: Abstracting ; Security of data
Indexed Type: EI
ISBN: 9781450313032
Department: (1) State Key Laboratory of Information Security Institute of Software Chinese Academy of Sciences Beijing 100190 China; (2) Department of Applied Mathematics Zhengzhou Information Science and Technology Institute Zhengzhou Henan 450002 China
Sponsorship: ACM Spec. Interest Group Secur., Audit, Control (SIGSAC); Korea Communications Commission (KCC); Korea Internet and Security Agency (KISA)
Abstract: Sahai and Waters [6] proposed Attribute-Based Encryption (ABE) as a new paradigm of encryption algorithms that allow the sender to set a policy describing who can decrypt a particular ciphertext. In this paper, we first propose a cipher-text policy attribute-based encryption (CP-ABE) scheme from lattices, which supports flexible threshold access policies on literal (or boolean) attributes. Then we extend it to support multi-valued attributes without increasing the public key and ciphertext size. Our scheme's master secret key has only one matrix despite of the number of the system's attributes. The security of our schemes is based on the worstcase hardness on lattices. © 2012 ACM.
English Abstract: Sahai and Waters [6] proposed Attribute-Based Encryption (ABE) as a new paradigm of encryption algorithms that allow the sender to set a policy describing who can decrypt a particular ciphertext. In this paper, we first propose a cipher-text policy attribute-based encryption (CP-ABE) scheme from lattices, which supports flexible threshold access policies on literal (or boolean) attributes. Then we extend it to support multi-valued attributes without increasing the public key and ciphertext size. Our scheme's master secret key has only one matrix despite of the number of the system's attributes. The security of our schemes is based on the worstcase hardness on lattices. © 2012 ACM.
Language: 英语
Content Type: 会议论文
URI: http://ir.iscas.ac.cn/handle/311060/15828
Appears in Collections:软件所图书馆_会议论文

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Recommended Citation:
Zhang Jiang,Zhang Zhenfeng,Ge Aijun. ciphertext policy attribute-based encryption from lattices: extended abstract[C]. 见:7th ACM Symposium on Information, Computer and Communications Security, ASIACCS 2012. Seoul, Korea, Republic of. May 2, 2012 - May 4, 2012.
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