An efficient revocable ID-based encryption scheme in the standard model Online publication date: Fri, 21-Apr-2017
by Limin Shen; Futai Zhang; Yinxia Sun; Jianfeng Ma
International Journal of Embedded Systems (IJES), Vol. 9, No. 2, 2017
Abstract: Similar to the traditional public key setting based on public key infrastructure, in the application of identity-based cryptosystems, it is also important to provide a practical mechanism for revoking those users whose private keys are compromised or they are no longer legitimate system users. This paper concentrates on the practical user revocation problem in identity-based encryption (IBE) systems. We present an efficient and CCA2 secure revocable identity-based encryption (RIBE) scheme in the standard model. The revocation mechanism put forward in our RIBE scheme does not require secure channels between the PKG and the users. The CCA2 security of our scheme is rigorously proved and is tightly reduced to the hardness assumption of the decisional truncated q-ABDHE problem without using random oracles. Additionally, our RIBE scheme also supplies a mechanism that permits the revoked users to rejoin the system without altering their identity information or rebuilding the system.
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 Embedded Systems (IJES):
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