Dr. Dr. Kambombo Mtonga

Dr. Dr. Kambombo Mtonga

Author

Mathematics & Statistics

23 publications

Kambombo obtained his Bachelor of Education in Mathematics from the University of Malawi, a Msc of Engineering from Kyungil University, South Korea and a PhD in WiseNET from the University of Rwanda. He is an established researcher with research interests at the intersection of Mathematics and Tech...

Read more

Time-and-ID-based proxy Re-Encryption Scheme

Journal Article
Published 1 week ago, 12 views
Author
Dr. Dr. Kambombo Mtonga
Co-authors
Anand Paul, Seungmin Rho
Abstract
Time- and ID-based proxy reencryption scheme is proposed in this paper in which a type-based proxy reencryption enables the delegator to implement fine-grained policies with one key pair without any additional trust on the proxy. However, in some applications, the time within which the data was sampled or collected is very critical. In such applications, for example, healthcare and criminal investigations, the delegatee may be interested in only some of the messages with some types sampled within some time bound instead of the entire subset. Hence, in order to carter for such situations, in this paper, we propose a time-and-identity-based proxy reencryption scheme that takes into account the time within which the data was collected as a factor to consider when categorizing data in addition to its type. Our scheme is based on Boneh and Boyen identity-based scheme (BB-IBE) and Matsuo's proxy reencryption scheme for identity-based encryption (IBE to IBE). We prove that our scheme is semantically secure in the standard model.
Year of Publication
2014
Journal Name
Journal of Applied Mathematics
Volume
2014
Issue
2014
Page Numbers
329198
Top Researchers
“Academic success depends on research and publications.”
---- Philip Zimbardo ----