通信学报2017，Vol.38Issue(10)：94-101,8.DOI:10.11959/j.issn.1000-436x.2017201
支持策略动态更新的多机构属性基加密方案
Multi-authority attribute-based encryption scheme with policy dynamic updating
摘要
Abstract
Attribute-based encryption (ABE) is a new cryptographic technique which guarantees fine-grained access con-trol of outsourced encrypted data in the cloud environment. However, a key limitation remains, namely policy updating. Thus, a multi-authority attribute-based encryption scheme with policy dynamic updating was proposed. In the scheme, an anonymous key issuing protocol was introduced to protect users' privacy and resist collusion attack of attribute authority. The scheme with dynamic policy updating technique was secure against chosen plaintext attack under the standard model and can support any types of policy updating. Compared to the existing related schemes, the size of ciphertext and users' secret key is reduced and can significantly reduce the computation and communication costs of updating ciphertext. It is more effective in the practical application.关键词
属性基加密/多机构/动态策略更新/隐私保护Key words
attribute based encryption/multi-authority/dynamic policy updating/privacy protection分类
信息技术与安全科学引用本文复制引用
闫玺玺,刘媛,李子臣,汤永利..支持策略动态更新的多机构属性基加密方案[J].通信学报,2017,38(10):94-101,8.基金项目
国家自然科学基金资助项目(No.61300216) （No.61300216）
河南省科技厅基金资助项目(No.132102210123) （No.132102210123）
河南省教育厅科研基金资助项目(No.16A520013) （No.16A520013）
河南理工大学 2015 年青年骨干教师基金资助项目Foundation Items: The National Natural Science Foundation of China (No.61300216), The Science Project of Henan Province (No.132102210123), The Scientific Research Project of Henan Province (No.16A520013), The Research Fund for Young Backbone Teachers of Henan Polytechnic University in 2015 （No.61300216）
