A publicly verifiable network coding scheme with null-space HMAC
by Yonghui Chen; Cheng Zhang; Wei Li; Tingsong Chen; Mingwu Zhang
International Journal of Intelligent Information and Database Systems (IJIIDS), Vol. 11, No. 2/3, 2018

Abstract: The encode-and-forward mechanism of network coding (NC) system, not only could provide increased network throughput, but also might get seriously vulnerable to pollution attacks. It has been an interesting and challenging topic how to design a secure, efficient and publicly verifiable homomorphic NC scheme. The existing cryptography-based NC schemes are grouped in either public key cryptosystem (PKC), or symmetric key cryptosystem (SKC). NC schemes in PKC naturally have public verifiability, but imply much more computation cost and longer operation delay. NC schemes in SKC have cheaper computations cost, but are dilemma about how to share the secret key to those intermediate nodes who might be malicious. Therefore, in this paper, we provide a new NC scheme that based on null-space HMAC with hierarchically sharing keys. The inner sharing keys are for the destination nodes to verify the integrity of the messages; the outer sharing keys are for the intermediate nodes to verify the integrity of the received packets. Our scheme shows a way how to balance the computation efficiency and the public verifiability for the NC system with a SKC scheme.

Online publication date: Thu, 24-May-2018

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 Intelligent Information and Database Systems (IJIIDS):
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