Today’s organizations are dealing with tremendous amount of data. Since cloud provides cost effective solution, organizations prefer cloud storage. But with cloud storage data security issues arises. Within an organization, there are many data users with different credentials. The secure sharing of data among such users is needed to be done carefully. In this paper named –“A review on: Secure Data Sharing in Cloud (SeDaSc)” we proposed one approach in which data user will able to access only that data for which he/she has given a permission. This also presents possible insider threat of third party in previous approach and its solution. For this we used the concept of two layer encryption where lower layer encryption is performed by data owner and upper layer encryption is performed by Third Party. The third party is a server located in between cloud customer (say organization) and cloud. Here by retaining control over some operations at data owner we tried to achieve more data confidentiality. Users are registered with an owner with unique id and password. This approach ensures 1) data confidentiality; 2) access control; 3) data sharing (forwarding) without using compute-intensive reencryption; 4) insider threat security; and 5) forward and backward access control.
Loading....