西安电子科技大学学报（自然科学版）2017，Vol.44Issue(2)：57-62,190,7.DOI:10.3969/j.issn.1001-2400.2017.02.011
支持位置验证和策略变更的属性加密方案
Attribute-based encryption with location verification and policy adjusting supporting the cloud mobile office
摘要
Abstract
Facing the problems of the users` location privacy leakage and the indirect adjusting policies of the ciphertext stored in the cloud, in a mobile officie environment with cloud, a Ciphertext-Policy Attribute-Based Encryption with the Location Verification and Policy Adjusting (LVPA-CP-ABE) scheme is proposed.In the scheme, we apply BGV (Brakerski-Gentry-Vaikuntanathan) homomorphic encryption to protect the users` location privacy and updating key generated by the data owner directly to adjust the policy of the ciphertext stored in the cloud in the meantime.Moreover, in consideration of the endurance of mobile devices, the idea of outsourcing the BGV computation and BGV decryption as well as the ciphertext adjusting part is also introduced.The simulation indicates that our scheme is highly efficient in terms of users` computational cost.关键词
密文策略属性加密/BGV同态加密/位置验证/策略变更Key words
ciphertext-policy attribute-based encryption/BGV homomorphic encryption/location verification/policy adjusting分类
信息技术与安全科学引用本文复制引用
应作斌,马建峰,崔江涛..支持位置验证和策略变更的属性加密方案[J].西安电子科技大学学报（自然科学版）,2017,44(2):57-62,190,7.基金项目
国家自然科学基金重点资助项目(U1405255) （U1405255）
国家自然科学基金资助项目(61502248) （61502248）
