期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2017
卷号：5
期号：3
页码：1111
DOI：10.15680/IJIRCCE.2017.0503178
出版社：S&S Publications
摘要：Data sharing in cloud is very popular. In the cloud consists of different types of files. Normally in cloudfor encryption cipher-text policy attribute based encryption(CP-ABE) method can be used. But it can only suitable fornormal files. But the shared file is having the property of multi-level hierarchy. so for this type of file cipher - textpolicy attribute encryption(CP-ABE) is not possible particularly in health and military organization. More and moresecurity is needed for this kind of organization. In this paper policy based file hierarchy encryption scheme and geoencryption scheme is used for shared file in cloud. In this the layer access structure are combine into one accessstructure and then the hierarchy are encrypt with combined structure.Here the ciphertext element related to attributeshared by files.Therefore both the ciphertext data and cost of encryption saved. More over the proposed scheme isproved to be secure under the standard assumption of geo Encryption and the proposed scheme is more powerful inboth encryption and decryption.
