Julius Caesar: Antony's Funeral Speech Essay

1073 Words5 Pages
HASBE: A HIERARCHICAL ATTRIBUTE BASED SOLUTION FOR FLEXIBLE AND SCALABLE ACCESS CONTROL IN CLOUD COMPUTING ABSTRACT Several schemes employing attribute-based encryption (ABE) have been proposed for access control of outsourced data in cloud computing. It enables customers with limited computational resources to outsource their large computation workloads to the cloud, and economically enjoy the massive computational power, bandwidth, storage, and even appropriate software that can be shared in a pay-per-use manner. Despite the tremendous benefits, security is the primary obstacle that prevents the wide adoption of this promising computing model, especially for customers when their confidential data are consumed and produced during the computation. However, ordinary data encryption techniques in essence prevent cloud from performing any meaningful operation of the underlying cipher text-policy, making the computation over encrypted data a very hard problem. As a result, there do exist various motivations for cloud server to behave unfaithfully and to return incorrect results, i.e., they may behave beyond the classical semi honest model. Attribute-based encryption (ABE) schemes have been proposed for access control of outsourced data in cloud computing; however, most of them suffer from inflexibility in implementing complex access control policies. In order to realize scalable, flexible, and fine-grained access control of outsourced data in cloud computing, in this project, we propose hierarchical attribute-set-based encryption (HASBE) by extending cipher text-policy attribute-set-based encryption (ASBE) with a hierarchical structure of users. The proposed scheme not only achieves scalability due to its hierarchical structure, but also inherits flexibility and fine-grained access control in supporting compound attributes of ASBE. EXISTING SYSTEM: *

More about Julius Caesar: Antony's Funeral Speech Essay

Open Document