Abstract

Cloud storage is an important area in cloud computing. This involves lot of process like storing large amount of
data, encryption of data and securely communicating encrypted keys with the users. Nowadays large amount of
secured data are shared in the cloud environment. Hence it is very important to maintain the privacy of secured
data. Thus the secured data is encrypted and the large numbers of keys are shared with the users. But sometimes
the user will not be able to maintain large amount of secured keys. In this journal a secured key aggregate
searchable encryption is proposed which is used for sharing a single aggregate key to the user for sharing large
number of documents in a federated cloud environment. Also the number of keyword trapdoors send to the cloud
environment by the user is also minimized in this approach.