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| An expressive decentralizing KP-ABE scheme with constant-size ciphertext | |
| Li, Qinyi (1); Xiong, Hu (1); Zhang, Fengli (1); Zeng, Shengke (1); Li, Q.(leebluedreams@gmail.com) | |
| 2013 | |
| Source | International Journal of Network Security
 |
| ISSN | 1816353X |
| Volume | 15Issue:3Pages:131-140 |
| English Abstract | Decentralizing attribute based encryption is a variant of multi-authority attribute based encryption which doesn't require a trusted central authority to conduct the system setup. In this paper, we propose an expressive decentralizing KP-ABE scheme with constant ciphertext size. In our construction, the access policy can be expressed as any non-monotone access structure. Meanwhile, the ciphertext size is independent on the number of attributes used in the scheme. We prove that our scheme is semantic secure in so-called Selective-Set model based on the n-DBDHE assumption. To the best of our knowledge, this is the first multi-authority attribute based encryption scheme realizing such expressive access policy and constant ciphertext size.; Decentralizing attribute based encryption is a variant of multi-authority attribute based encryption which doesn't require a trusted central authority to conduct the system setup. In this paper, we propose an expressive decentralizing KP-ABE scheme with constant ciphertext size. In our construction, the access policy can be expressed as any non-monotone access structure. Meanwhile, the ciphertext size is independent on the number of attributes used in the scheme. We prove that our scheme is semantic secure in so-called Selective-Set model based on the n-DBDHE assumption. To the best of our knowledge, this is the first multi-authority attribute based encryption scheme realizing such expressive access policy and constant ciphertext size. |
| Indexed Type | EI |
| Department | (1) School of Computer Science and Engineering, University of Electronic Science and Technology of China, No.2006, Xiyuan Avenue, West Hi-tech Zone, Chengdu, 611731, China; (2) State Key Laboratory of Information Security, Institute of Software, Chinese Academy of Sciences, Beijing, 100080, China |
| Language | 英语 |
| Content Type | 期刊论文 |
| URI | http://ir.iscas.ac.cn/handle/311060/17043 |
| Collection | 中国科学院软件研究所 |
| Corresponding Author | Li, Q.(leebluedreams@gmail.com) |
| Recommended Citation GB/T 7714 | Li, Qinyi ,Xiong, Hu ,Zhang, Fengli ,et al. An expressive decentralizing KP-ABE scheme with constant-size ciphertext[J]. International Journal of Network Security,2013,15(3):131-140. |
| APA | Li, Qinyi ,Xiong, Hu ,Zhang, Fengli ,Zeng, Shengke ,&Li, Q..(2013).An expressive decentralizing KP-ABE scheme with constant-size ciphertext.International Journal of Network Security,15(3),131-140. |
| MLA | Li, Qinyi ,et al."An expressive decentralizing KP-ABE scheme with constant-size ciphertext".International Journal of Network Security 15.3(2013):131-140. |
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