期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2015
卷号：4
期号：5
页码：12062-12068
出版社：IJECS
摘要：Mobile nodes in military environments such as a battlefield or a hostile region are likely to suffer fromintermittent network connectivity and frequent partitions. Disruption-tolerant network (DTN) technologiesare becoming successful solutions that allow wireless devices carried by soldiers to communicate with eachother and access the confidential information or command reliably by exploiting external storage nodes.Some of the most challenging issues in this scenario are the enforcement of authorization policies and thepolicies update for secure data retrieval. Ciphertext-policy attribute-based encryption (CP -ABE) is apromising cryptographic solution to the access control issues. However, the problem of applying CP-ABE indecentralized DTNs introduces several security and privacy challenges with regard to the attributerevocation, key escrow, and coordination of attributes issued from different authorities. In this paper, wepropose a se-cure data retrieval scheme using CP-ABE for decentralized DTNs where multiple keyauthorities manage their attributes independently. We demonstrate how to apply the proposed mechanism tosecurely and efficiently manage the confidential data distributed in the disruption-tolerant military network.
