Access control mechanisms for outsourced data in public cloud using polynomial interpolation and multilinear map Online publication date: Wed, 26-Apr-2017
by B.R. Purushothama; B.B. Amberker
International Journal of Cloud Computing (IJCC), Vol. 6, No. 1, 2017
Abstract: Outsourcing the user's sensitive data on to honest-but-curious cloud storage servers pose several data security and access control challenges. Single key and multi-key encryption strategies to protect the data require data owner participation for providing access to data and management of multiple keys by users. To reduce the key management at the users and to remove data owner's participation during data accesses, we propose three access control schemes: 1) based on the principle of polynomial interpolation; 2) using multilinear map; 3) dynamic access control scheme using multilinear map. The security of multilinear map based schemes relies on the multilinear Diffie-Hellman assumption. The key generated for data encryption is regulated by the access authorisations holding on the data. In all the proposed schemes, the authorised user needs to store only one key irrespective of the number of data items to which the user has authorised access and do not require the data owner's participation except in grant and revoke operations.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Cloud Computing (IJCC):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook