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| fully secure doubly-spatial encryption under simple assumptions | |
| Chen Cheng; Zhang Zhenfeng; Feng Dengguo | |
| 2012 | |
| Conference Name | 6th International Conference on Provable Security, ProvSec 2012 |
| Source | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
| Pages | 253-263 |
| Conference Date | September 26, 2012 - September 28, 2012 |
| Conference Place | Chengdu, China |
| Indexed Type | EI |
| ISSN | 0302-9743 |
| ISBN | 9783642332715 |
| Department | (1) Institute of Software Chinese Academy of Sciences Beijing China |
| English Abstract | Recently, Hamburg improved the notion of spatial encryption by presenting a variant called doubly-spatial encryption. As a generalization of the spatial encryption, the doubly-spatial encryption is more powerful and expressive. More useful cryptography systems can be built from it, such as attribute-based encryption, etc. However, the only presented doubly-spatial encryption scheme can only be proved to be selectively secure. In this paper, we primarily focus on the full security of doubly-spatial encryption. A doubly-spatial encryption scheme has been proposed. We apply the dual system methodology proposed by Waters in the security proof. Our scheme can be proved adaptively secure under standard assumptions, the decisional linear assumption and the decisional bilinear Diffe-Hellman assumption, over prime order groups in the standard model. Our scheme is the first fully secure construction of doubly-spatial encryption. As an independent interest, we also propose a fully secure spatial encryption with weak anonymity and constant ciphertext size in the composite order group settings. © 2012 Springer-Verlag.; Recently, Hamburg improved the notion of spatial encryption by presenting a variant called doubly-spatial encryption. As a generalization of the spatial encryption, the doubly-spatial encryption is more powerful and expressive. More useful cryptography systems can be built from it, such as attribute-based encryption, etc. However, the only presented doubly-spatial encryption scheme can only be proved to be selectively secure. In this paper, we primarily focus on the full security of doubly-spatial encryption. A doubly-spatial encryption scheme has been proposed. We apply the dual system methodology proposed by Waters in the security proof. Our scheme can be proved adaptively secure under standard assumptions, the decisional linear assumption and the decisional bilinear Diffe-Hellman assumption, over prime order groups in the standard model. Our scheme is the first fully secure construction of doubly-spatial encryption. As an independent interest, we also propose a fully secure spatial encryption with weak anonymity and constant ciphertext size in the composite order group settings. © 2012 Springer-Verlag. |
| Keyword | Artificial Intelligence |
| Sponsorship | University of Electronic Science and Technology of China (UESTC) |
| Language | 英语 |
| Content Type | 会议论文 |
| URI | http://ir.iscas.ac.cn/handle/311060/15772 |
| Collection | 中国科学院软件研究所 |
| Recommended Citation GB/T 7714 | Chen Cheng,Zhang Zhenfeng,Feng Dengguo. fully secure doubly-spatial encryption under simple assumptions[C],2012:253-263. |
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