Die Dozenten der Informatik-Institute der Technischen Universität
Braunschweig laden im Rahmen des Informatik-Kolloquiums zu folgendem
Vortrag ein.
Prof. Sanjay K Madria, Department of Computer Science, Missouri University
of Science and Technology, Rolla, MO:
A Secure Data Sharing and Query Processing Framework via Federation of
Cloud Computing
Beginn: 05.09.2014, 15:00 Uhr
Ort: TU Braunschweig, Informatikzentrum, Mühlenpfordtstraße 23,
1. OG, Hörsaal M 161
Webseite: http://www.ibr.cs.tu-bs.de/cal/kolloq/2014-09-05-madria.html
Kontakt: Prof. Dr. Wolf-Tilo Balke
Alle Zuhörer sind eingeladen, sich bereits 20 Minuten vor dem Vorrag
zu gemeinsamem Kaffee und Kuchen einzufinden.
Due to cost-efficiency and less hands-on management, big data owners
are outsourcing their data to the cloud, which can provide access to the
data as a service. However, by outsourcing their data to the cloud, the
data owners lose control over their data, as the cloud provider becomes a
third party service provider. At first, encrypting the data by the owner
and then exporting it to the cloud seems to be a good approach. However,
there is a potential efficiency problem with the outsourced encrypted data
when the data owner revokes some of the users’ access privileges. An
existing solution to this problem is based on symmetric key encryption
scheme but it is not secure when a revoked user rejoins the system with
different access privileges to the same data record. In this talk, I
will discuss an efficient and Secure Data Sharing (SDS) framework using a
combination of homomorphic encryption and proxy re-encryption schemes that
prevents the leakage of unauthorized data when a revoked user rejoins
the system. I will also discuss the modifications to our underlying
SDS framework and present a new solution based on the data distribution
technique to prevent the information leakage in the case of collusion
between a revoked user and the cloud service provider. A comparison of the
proposed solution with existing methods will be discussed. Furthermore,
I will outline how the existing work can be utilized in our proposed
framework to support secure query processing for big data analytics. I
will provide a detailed security as well as experimental analysis of
the proposed framework on Amazon EC2 and highlight its practical use.
Biography: Sanjay Kumar Madria received his Ph.D. in Computer Science
from Indian Institute of Technology, Delhi, India in 1995. He is a full
professor in the Department of Computer Science at the Missouri University
of Science and Technology (formerly, University of Missouri-Rolla, USA)
and site director, NSF I/UCRC center on Net-Centric Software Systems. He
has published over 200 Journal and conference papers in the areas of
mobile data management, Sensor computing, and cyber security and trust
management. He won three best papers awards including IEEE MDM 2011 and
IEEE MDM 2012. He is the co-author of a book published by Springer in
Nov 2003. He serves as steering committee members in IEEE SRDS and IEEE
MDM among others and has served in International conferences as a general
co-chair (IEEE MDM, IEEE SRDS and others), and presented tutorials/talks
in the areas of mobile data management and sensor computing at various
venues. His research is supported by several grants from federal sources
such as NSF, DOE, AFRL, ARL, ARO, NIST and industries like Boeing,
Unique*Soft, etc. He has also been awarded JSPS (Japanese Society for
Promotion of Science) visiting scientist fellowship in 2006 and ASEE
(American Society of Engineering Education) fellowship at AFRL from
2008 to 2012. In 2012-13, he was awarded NRC Fellowship by National
Academies. He has received faculty excellence research awards in 2007,
2009, 2011 and 2013 from his university for excellence in research. He
served as an IEEE Distinguished Speaker, and currently, he is an ACM
Distinguished Speaker, and IEEE Senior Member and Golden Core awardee.
