The full text of this article

 

Extensions to ciphertext-policy attribute-based encryption to support distributed environments
by Daniel Servos; Sabah Mohammed; Jinan Fiaidhi; Tai hoon Kim
International Journal of Computer Applications in Technology (IJCAT), Vol. 47, No. 2/3, 2013

 

Abstract: We present several extensions to the ciphertext-policy attribute-based encryption (CP-ABE) scheme, first introduced by Bethencourt et al. in 2007, to support operation in a distributed environment with multiple attribute authorities. Unlike other efforts in creating a multi-authority attribute-based encryption schemes our extensions allow for each authority to be designated a subset of attributes and work independently in creating user keys (i.e. a user need only contact a single authority for their secret key). Additionally, we show that the presented extensions have a minimal impact on performance compared to standard CP-ABE and that both the performance of CP-ABE and our extensions can be improved by computing parts of the user and authority keys in parallel. We also discuss the use of CP-ABE in protecting data confidentiality in public cloud environments.

Online publication date: Wed, 05-Jun-2013

 

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 Computer Applications in Technology (IJCAT):
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