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题名:
achieving efficient dynamic cryptographic access control in cloud storage
作者: Hong Cheng ; Zhang Min ; Feng Deng-Guo
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Cloud computing ; Cryptography ; Security systems
刊名: Tongxin Xuebao/Journal on Communications
发表日期: 2011
卷: 32, 期:7, 页:125-132
部门归属: (1) State Key Laboratory of Information Security, Institute of Software, Chinese Acad. of Sci., Beijing 100190, China
摘要: 针对云存储中敏感数据的机密性保护问题,在基于属性的加密基础上提出了一种密文访问控制方法HCRE。其思想是设计一种基于秘密共享方案的算法,将访问控制策略变更导致的重加密过程转移到云端执行,从而降低权限管理的复杂度,实现高效的动态密文访问控制。实验分析表明HCRE显著降低了权限管理的时间代价,而且没有向云端泄露额外的信息,保持了数据机密性。
英文摘要: 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.
语种: 中文
内容类型: 期刊论文
URI标识: http://ir.iscas.ac.cn/handle/311060/14079
Appears in Collections:信息安全国家重点实验室_期刊论文

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Recommended Citation:
Hong Cheng,Zhang Min,Feng Deng-Guo. achieving efficient dynamic cryptographic access control in cloud storage[J]. Tongxin Xuebao/Journal on Communications,2011-01-01,32(7):125-132.
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