• SADIA SYED
• M.USSENAIAH

Proficient Hierarchical Attribute Based Encryption by extend cipher text-policy attribute based encryption with a hierarchical structure of users. The proposed schemes not only achieve scalability due to its hierarchical structure, but also inherit elasticity and fine-grained access control in supporting complex attributes. The layered access structures are integrated into a single access structure, and then, the hierarchical files are encrypted with the incorporated access structure. The cipher text components related to attributes could be shared by the files. Therefore, both cipher text storage and time cost of encryption is saved. The shared data files generally have the characteristic of multilevel hierarchy, particularly in the area of academics, healthcare and the military. However, the hierarchy structure of shared files has not been explored in CP-ABE. While in our system attributes are used to describe a user’s credentials, and Encrypting data determines a policy for who can decrypt. However, when organization users outsource top secret data for sharing on cloud servers, the adopted encryption system should not only support fine-grained access control, but also supply high performance, practicability, and scalability to best serve the needs of accessing data anytime and anywhere.

HABE, Fine-grained access control, Cloud Storage

"A Proficient Hierarchical ABE Access Control for Securing Cloud Data and Its Performance Analysis", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 9, page no.248-253, September-2018, Available :http://www.jetir.org/papers/JETIR1809687.pdf

"A Proficient Hierarchical ABE Access Control for Securing Cloud Data and Its Performance Analysis", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 9, page no. pp248-253, September-2018, Available at : http://www.jetir.org/papers/JETIR1809687.pdf