Broadcast revocation scheme in composite-order bilinear group and its application to attribute-based encryption
by Qinyi Li; Hu Xiong; Fengli Zhang
International Journal of Security and Networks (IJSN), Vol. 8, No. 1, 2013

Abstract: Broadcast revocation scheme allows a broadcaster to specify a revoked users list S in the broadcast ciphertext. Only the users outside S can decrypt the broadcast ciphertext. Attribute-Based Encryption (ABE) is a useful cryptographic primitive which enables flexible access policy over encrypted data. In this paper, we propose an adaptively secure broadcast revocation scheme in composite-order bilinear group. After that, a fully secure and efficient broadcast revocable ciphertext-policy ABE scheme has been constructed based on the original revocation scheme. The security of the two encryption schemes can be proved through the famous dual system encryption methodology and reduced to the same three static intractable assumptions. Furthermore, our revocable ciphertext-policy ABE scheme enjoys fully collusion resistance and unbounded users revocation.

Online publication date: Fri, 12-Jul-2013

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
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 Security and Networks (IJSN):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your 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