期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2014
卷号：5
期号：2
页码：1774-1777
出版社：TechScience Publications
摘要：“proxy servers” are the important thing we are using here to secure the data from untrusted users by assuming them(proxy servers) as trusted storage. Secure distributed data storage can shift the burden of maintaining a large number of files from the owner to proxy servers. Proxy servers can convert encrypted files for the owner to encrypted files for the receiver without the necessity of knowing the content of the original files. The original files will be removed by the owner for the sake of space efficiency. Hence, the issues on confidentiality and integrity of the outsourced data must be addressed carefully. we propose two identity-based secure distributed data storage schemes. Our schemes can capture the following properties.The file owner can decide the access permission independently without the help of the private key generator .For one query, a receiver can only access one file, instead of all files of the owner. Our schemes are secure against the collusion attacks,and from untrusted users namely even if the receiver can compromise the proxy servers, he cannot obtain the owner’s secret key.Although these schemes are secure against different types of attacks and all the access permissions made by the owner himself
关键词：Distributed Data Storage; Identity-based System;Access Control; Security ;integrity and confidentiality
