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：2015
卷号：3
期号：6
DOI：10.15680/ijircce.2015.0306123
出版社：S&S Publications
摘要：The Cloud storage means the storing the data online in the form of cloud. Data sharing is one of theimportant functionality in cloud. This approach describe one of the public-key cryptosystems as Key AggregateCryptosystem. This cryptosystem produce constant-size cipher texts, here decryption is more powerful since any set ofcipher text can be decrypted at only one time by using aggregate key. which will show how one can communicate orshare the data from cloud securely, efficiently and flexibly. The concept of this cryptosystem is that one can aggregateor gather any set of secret keys and from that gathering keys make single key which is compact. That means, the userwho hold the secret key can send a constant-size aggregate key for set of cipher text in cloud , but the other encryptedfiles which is present outside the set will remain confidential. In this approach MES-2 that is Modern EncryptionStandard-2 algorithm will be used for encryption
关键词：Cloud storage; data sharing; key-aggregate encryption;Modern Encryption Standard-2
