身份类加密体制的双线性对主线和格主线类比设计

项目名称： 身份类加密体制的双线性对主线和格主线类比设计

项目编号： No.61272492

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 自动化技术、计算机技术

项目作者： 杨晓元

作者单位： 中国人民武装警察部队工程大学

项目金额： 80万元

中文摘要： 身份类加密体制的设计与分析由双线性对和格两条主线贯穿。双线性对主线上，构造技术方兴未艾；格主线上，成果尚不多见。两条主线之间相互借鉴的研究还很欠缺，它们的类比构造将为身份类加密的研究提供新的增长点。研究内容：利用双线性对自有技术，或借鉴格上的关键技术尤其是向量化技术，设计与分析双线性对上新型身份类加密方案；利用格自有技术，或借鉴双线性对上的关键技术，设计与分析新型格身份类加密方案。研究目标：设计双线性对上新型IBE、新型全安全身份类加密、新型功能加密、基于DPVS的新型身份类加密、仿格的双线性对身份类加密方案；设计格上的新型身份类加密、基于理想格的身份类加密、仿双线性对的格身份类加密、全安全的格身份类加密方案；利用IB-(L)TDF设计新型身份类加密方案。研究方法上强调方案和关键技术的类比构造。原创性成果是系统地提出身份类加密体制的类比设计理论，解决格身份类加密体制的全安全等公开问题。

中文关键词： 身份类加密体制；格；双线性对；可证明安全；

英文摘要： Identity related encryption (IRE) consists of many novel cryptographic primitives closely related to traditional identity based encryption. Until now, there are mainly two ways to design and analyze IRE in terms of the employed mathematical tool. One is to design IRE with bilinear pairings and the other is to design IRE with lattices. These two ways can be seen as two backbones of the entire IRE research field. Many pairing based techniques for designing IRE are rapidly developing, while there are only a few results on designing IRE based on lattices. Furthermore, the achievements on designing IRE by learning between the two backbones are rare. Clearly, these "learning" can give us new perspectives on how to design IRE. Firstly, we shall design new pairing based IRE schemes by using pairing based techniques or by learning from lattice based techniques. Secondly, through learning from the pairing based techniques or using the lattice based techniques, new lattice based IRE schemes will be constructed. Concretely, on the pairing backbone, we shall design new pairing based IBE, new fully secure IRE, new types of functional encryption, DPVS based novel IRE, new pairing based IRE by learning from the lattice cryptography. On the lattice backbone, we shall design new lattice based IRE, idea lattice based IRE, fully se

英文关键词： Identity Related Encryption；Lattices；Pairings；Provable Security；