通信学报2011，Vol.32Issue(7)：125-132,8.
面向云存储的高效动态密文访问控制方法
Achieving efficient dynamic cryptographic access control in cloud storage
摘要
Abstract
To keep the data in the cloud confidential against unauthorized parties, a cryptographic access control solution called hybrid cloud re-encryption (HCRE) based on attribute-based encryption (ABE) was introduced. HCRE designed a secret sharing scheme to delegate the task of ABE re-encryption to the cloud service provider (CSP), which alleviates the administering burdens on the data owner. Experiments show that HCRE can handle dynamic access policies in a more efficient way. Additionally, HCRE does not reveal extra information of the plaintext to the CSP, thus it does no harm to the data confidentiality.关键词
云存储/云计算/密文访问控制/基于属性的加密/代理重加密Key words
cloud storage/ cloud computing/ cryptographic access control/ attributes-based encryption/ proxy re-encryption分类
信息技术与安全科学引用本文复制引用
洪澄,张敏,冯登国..面向云存储的高效动态密文访问控制方法[J].通信学报,2011,32(7):125-132,8.基金项目
国家高技术研究发展计划(“863”计划)基金资助项目(2007AA120404) （“863”计划）
