Review of efficient revocable attribute based encryption technique in dynamic groups

We proposed a secure cloud-based application to enhance revocable attribute-based encryption technique. Along with it to boost the security of the document we proposed a modified AES algorithm with some pre-encryption modifications in document to make system more secure and efficient. In our paper first, there is designing of a revocable attribute-based encryption (RABE) scheme with some modification in previous RABE algorithm together with the characteristics of ciphertext relegation by some effort and exclusively combining some techniques to scale down the computation overhead. Then there is presentation of fine-grained access control together with data sharing mechanism for on-demand services along with dynamic user groups in the cloud. Specifically, in this paper the main focused on advancement of RABE scheme which plays an important role in cloud-based application. Furthermore, in this user revocation there is new concept of addition and deletion of users. The comparative data proves that our proposed innovation is more effective and scalable than existing one.