Group Data Searching And Sharing Using Key Aggregate Cryptosystem

Computer Engineering

A Searchable encryption can be defined as Store data externally in encrypted format. It can be easily search by user and most important that to allow others to search data without having access to plaintext. Data leaks in the cloud are the major security problem. In searchable encryption data owner encrypt some keywords and then upload them in the cloud with the encrypted data. In previous systems, it is noticed that sharing encrypted data with different users may contain the different encryption keys that are used for different files. Therefore, number of keys may imply problem as that are needed to be distributed to users for encryption as well as decryption of the cloud data. Also to perform a keyword search over many files large number of trapdoors must be generated by users and submitted to the cloud. Hence, existing systems are less secure communication, storage, and computational complexity which may cause system inefficiency. To overcome these problems we are studying about the KASE i.e. Key-Aggregate Searchable Encryption.

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