DocumentCode :
2215169
Title :
A Secure and Efficient Key-Policy Attribute Based Key Encryption Scheme
Author :
Wang, Changji ; Liu, Yang
Author_Institution :
Guangdong Key Lab. of Inf. Security Technol., Sun Yat-sen Univ., Guangzhou, China
fYear :
2009
fDate :
26-28 Dec. 2009
Firstpage :
1601
Lastpage :
1604
Abstract :
Attribute based encryption has captured the attention of crypto-researchers in recent years, which can be regarded as a special type of identity based encryption integrated with flexible access control policy. In this paper, we propose a new construction of key-policy attribute based encryption, which is proved to be secure in the Selective-Set model of security under the decisional BDH assumption in the random oracle model. The proposed scheme not only provide public parameters whose size is independent of the number of attributes in each identity (used as public key), but also it has useful structures which result in more efficient key extraction and encryption than the Goyal et al.´s key-policy attribute based encryption scheme, which is proved to be secure in the Selective-Set model of security under the decisional BDH assumption in the standard model.
Keywords :
public key cryptography; access control policy; crypto-researchers; decisional BDH assumption; key encryption scheme; key policy attribute; selective set model security; Biometrics; Cryptography; Educational technology; Fuzzy sets; Fuzzy systems; Identity-based encryption; Information science; Information security; Laboratories; Public key;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Science and Engineering (ICISE), 2009 1st International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4909-5
Type :
conf
DOI :
10.1109/ICISE.2009.157
Filename :
5454839
Link To Document :
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