摘要
研究了基于位置密码学中安全定位协议的可证明安全问题。在通用可组合安全框架下,提出了安全定位的可证安全模型。根据安全定位协议的需求,设计了安全定位的理想函数。同时,作为基于位置密码学的一种前提假设,设计了BRM模型的理想函数。此外,以1-维空间的安全定位协议为例,证明了该协议在BRM模型下能够实现安全定位的理想函数。
The provable security of secure positioning in position-based cryptography was investigated, and the provable secure model of secure positioning was established in the universally composable framework. According to the security requirements of secure positioning, the ideal functionality of secure positioning firstly was proposed. Then, the ideal functionality of bounded retrieval model was designed as one of the set-up assumptions in position-based＂ cryptography. Lastly, the secure positioning protocol in 1-dimension space, as an example, could securely realize the functionality of secure positioning in the bounded retrieval model.
出处
《通信学报》
EI
CSCD
北大核心
2013年第2期117-122,共6页
Journal on Communications
基金
国家科技重大专项基金资助项目(2011ZX03005-002)
国家自然科学基金资助项目(U1135002
61100230
61100233)
陕西省自然科学基础研究计划基金资助项目(2011JQ8003)
中央高校基本科研业务费基金资助项目~~
关键词
基于位置密码学
安全定位
UC安全
position-based cryptography
secure positioning
UC secure
