A symmetric Encryption Based Secure Data Sharing in Cloud Environments

Abstract

The main advantage of cloud computing is the cloud storage which is helpful in storing data. But it 
deals with a major concern of security issues. It mainly occurs highly in group sharing of data which faces a two
side problem both cloud specific and conventional insider threats. To overcome this issue a secure data sharing in 
cloud methodology has been proposed which provides data confidentiality and integrity, access control, data 
forwarding, insider threat security and also it provides forward and backward access control. This method encrypts 
a file with a single key. Two different keys are generated one is sent to the user which encounters in finding and 
other is maintained by the trusted third party which is a Storage Server(SS). A working prototype has been 
implemented with this methodology and its performance is evaluated based on the time consuming of various 
operations. We also verify this secure data sharing cloud by using Asymmetric key generation. This method is 
potentially effective to provide security in group sharing data in cloud.