摘要
密文访问控制是近年来密码学研究中的热门方向,具有广泛的应用前景.首先分析了传统访问控制方法在云计算环境下面临的新威胁和挑战.将密文访问控制方法分为基于对称密钥密码学和基于公钥密码学两大类,并对2类方法中的主要机制进行分析和讨论.探讨了密文访问控制在加密文件系统和安全云存储中的应用.最后,讨论了密文访问控制面临的主要问题和挑战以及未来进一步值得关注的研究方向.
Cryptographic access control is a hot topic in recent years and has wide promising applications.This paper firstly analysed new threats and challenges for traditional access control methods in cloud computing.The cryptographic access control was categorized into symmetric-key cryptography based and public key cryptography based mechanisms,and main schemes of the two types were discussed later.Its application in encrypted file systems and securing cloud storage was introduced as well.Finally,this paper analysed main problems,challenges and further research directions for future discussion about cryptographic access control.
出处
《信息安全研究》
2016年第8期721-728,共8页
Journal of Information Security Research
基金
中央高校基本科研业务费专项资金项目(2016YJS003)
国家自然科学基金面上项目(61472032)
关键词
访问控制
密文访问控制
属性加密
云计算
云存储
access control
cryptographic access control
attribute-based encryption
cloud computing
cloud storage
