Paper Title
Attribute Based Scheme With Unidirectional Re-Encryption For Fine-Grained Access Control In Cloud Computing

Abstract- Data security and privacy, and access control are the most security concerns arise in cloud computing. The proposed work extends hierarchical attribute-set-based Encryption (HASBE) scheme with unidirectional re-encryption which provides a more flexible, scalable, and fine-grained access control of outsourced data in cloud computing. It is a new access control scheme that allows sending the encrypted file to a particular user by keeping the grouping scheme as well. Thus the proposed scheme is useful both group scheme and individual scheme, and there is no need to maintain multiple keys for both the scheme for a user. Index Terms - Access Control, Attribute Based Encryption, Unidirectional Re-encryption, Cloud Computing.