B. Bhargava, Y. Zhang, N. Idika, L. Lilien, M. Azarmi, .Collaborative Attacks in WiMAX Networks., to appear in Wiley Journal on Security and Communication Networks, 2009 (online version available)
Y. Zhang, and B. Bhargava, Self-Learning Disk Scheduling, to appear, IEEE Transactions on Knowledge and Data Engineering, 2008
W. Wang, J. Kong, B. Bhargava, and M. Gerla, "Visualization of Wormholes in Underwater Sensor Networks: A Distributed Approach.", to appear, Journal of Security and Networks, Vol.3, No.1, 2008
S.P.Mohanty, B. Bhargava, "Invisible Watermarking Based on Creation and Robust Insertion-Extraction of Image Adaptive Watermarks.", to appear, ACM-TOMCCAP 2008
Biswajit Panja, Sanjay Kumar Madria, Bharat K. Bhargava: A role-based access in a hierarchical sensor network architecture to provide multilevel security. Computer Communications 31(4): 793-806 (2008)
Leszek Lilien and Bharat Bhargava, "Privacy and Trust in Online Interactions." book chapter in: K. Chen and A. Fadlalla (eds.), "Online Consumer Protection: Theories of Human Relativism." Idea Group, 2008 (to appear).
S. Li, G. Chen, A. Cheung, B. Bhargava, "On the Design of Perceptual MPEG-Video Encryption Algorithms." in IEEE Transactions on Circuits and System for Video Technology, Vol 17, no.2 pp. 214-223, 2007
B. Panja, S. Madria, B. Bhargava "Energy and Communication Efficient Group Key Management Protocol for Hierarchical Sensor Networks." International Journal of Distributed Sensor Networks, 2007
M. Jenamani, Y. Zhong, and B. Bhargava. "Cheating in Online Auction: Towards Explaining the Popularity of English Auction." Journal of Electronic Commerce Research and Applications (ECRA), Vol.6, PP. 53-62,2007.
X. Wu, B. Mukherjee, and B. Bhargava. "A Crossing-tier Location Update/Paging Scheme in Hierarchical Cellular Networks." IEEE Transactions on Wireless Communications, Vol. 4, No. 5, pp. 839-848, 2006.
Y. Lu, W. Wang, D. Xu, and B. Bhargava. "Trust based Privacy Preservation in Peer to Peer Data Sharing." IEEE Transaction on Systems Man and Cybernetics (Special issues based on best papers in Secure Knowledge Management Conference), Vol. 36, No. 3, pp. 498-502, 2006
G. Ding, Z. Sahinoglu, P. Orlik, J. Zhang, and B. Bhargava, "Tree-Based Data Broadcast in IEEE 802.15.4 and ZigBee Networks." IEEE Transaction on Mobile Computing, 5(11): 1561-1574, November, 2006.
G. Ding, X. Wu, and B. Bhargava, "Performance Evaluation of Multiple-Rate Mobile Wireless Ad Hoc Networks." International Journal of Performance Evaluation, 63(11): 1110-1126, 2006.
A. Habib, S. Fahmy, and B. Bhargava. "Monitoring and Controlling QoS Network Domains." ACM/Wiley International Journal of Network Management, Vol. 15, Issue 1, Pages 11-29, Jan-Feb 2005.
W. Wang, B. Bhargava, Y. Lu, and X. Wu. "Defending Against Wormhole Attacks in Mobile Ad Hoc Networks." Wiley Journal on Wireless Communications and Mobile Computing, Vol 5, 1-21, 2005.
B. Bhargava, S. Wang, M. Khan, and A. Habib. "Multimedia Data Transmission and Contol Using Active Networks." Special Issue on Activated and Programmable Internet, Journal of Computer Communications Vol 28, Issue 6, Pages 623-639, April 2005.
X. Wu and B. Bhargava. "A02P: Ad Hoc On-Demand Position-Based Private Routing Protocol." IEEE Transactions on Mobile Computing Vol. 4, No. 4, 335-348, July, 2005.
A. Habib, D. Xu, M. Atallah, B. Bhargava, J. Chuang. "A tree-based Forward Digest Protocol to Verify Data Integrity in Distributed Media Streaming." IEEE Transactions on Knowledge and Data Engineering, 17(7), July, 2005.
M. Hefeeda, A. Habib, D. Xu, B. Bhargava, and B. Botev. "CollectCast: A Peer-to-Peer Service for Media Streaming." ACM/Springer Multimedia Systems Journal, 11(1), Sept., 2005.
B. Bhargava, M. Jenamani, and Y. Zhong. "Counteracting Shill Bidding in Online English Auction." International Journal of Cooperative Information Systems, 14(2-3), 245-263, Oct., 2005.
G. Ding, X. Wu, and B. Bhargava. "Cross-Layer Algorithm for Video Transmission over Wireless Network." in Handbook of Algorithms for Mobile and Wireless Networking and Computing (A. Bourkerche, ed.), CRC Press, 2005.
M. Hefeeda, B. Bhargava, and D. Yau. "A Cost-Effective Architecture for On-demand Media Streaming." Journal of Computer Networks, Vol. 44, Issue 4, pp. 353-382, March 2004.
B. Bhargava, C. Shi, and S. Wang. "MEPG Video Encryption Algorithms." Multimedia Tools and Applications, Vol 24, No. 3, 57-79, April, 2004.
B. Bhargava, X. Wu, Y. Lu, and W. Wang. "Integrating Heterogeneous Wireless Technologies: A Cellular Aided Mobile Ad Hoc Network (CAMA)." ACM Special Issue of the Journal on Special Topics in Mobile Networking and Applications (MONET), (9), 393-408, 2004.
B. Bhargava, L. Lilien, A. Rosenthal, and M. Winslett. "Pervasive Trust." IEEE Intelligent Systems, Vol. 19, No. 5, 74-88, Sept./Oct. 2004.
X. Wu, G.-H. Gary Chan, B. Mukherjee, and B. Bhargava. "Mobile-Assisted Data Forwarding for Wireless Networks." in Journal of Communications and Networks, Vol. 6, No. 3, pp. 216-225, Sept. 2004.
L. Lilien and B. Bhargava, "A Scheme for Privacy-preserving Data Dissemination." IEEE Transactions on Systems, Man and Cybernetics. (Based on best papers from Secure Knowledge Management conference)
A. Habib, M. Khan and B. Bhargava, "Edge-to-Edge Measurement-based Distributed Network Monitoring." Elsevier Computer Networks Journal, Vol. 44, Issue 2, Pages 211-233, Feb 2004.
Y. Lu, B. Bhargava, W. Wang, Y. Zhong, and X. Wu, "Secure Wireless Network with Movable Base Stations." in IEICE Transaction on Communications, IEICE/IEEE Joint Special Issue on Assurance Systems and Networks, Vol.E86-B, No. 10, pp. 2922 - 2930, 2003.
B. Bhargava, X. Wu, Y. Lu and W. Wang, "Integrating Heterogeneous Wireless Technologies: A Cellular Aided Mobile Ad hoc Network (CAMA)." accepted for publication in ACM Special Issues of the Journal on Special Topics in Mobile Networking and Applicaitons (MONET).
X. Wu, B. Mukherjee, G.-H. Chan and B. Bhargava, "Assuring Communications by Balancing Load in Cellular Networks." in IEICE Transaction on Communications, IEICE/IEEE Joint Special Issue on Assurance Systems and Networks, Vol.E86-B, No. 10, pp. 2912 - 2921, 2003.
S. Madria, B. Bhargava, M. Mohania and S. Bhowmick, "Data and Transaction Management in a Mobile Environment." Book Chapter in Mobile Computing: Implementing Pervasive Information and Communication Technologies, Kluwer Academic Publishers, Dec. 2002.
I. Chung, B. Bhargava and S. Madria, "Taxonomy of Data Management via Broadcasting in a Mobile Computing Environment." Book Chapter in Mobile Computing: Implementing Pervasive Information and Communication Technologies, Kluwer Academic Publishers, Dec. 2002.
A. Habib, S. Fahmy. S. Avasarala, V. Prabhakar and B. Bhargava, "On Detecting Service Violations and Bandwidth Theft in QoS Network Domains." in Elsevier Science Journal of Computer Communication, Vol. 26, No. 8, pp. 861 - 871, 2003.
D. Yau and B. Bhargava, "Heterogeneous CPU Services Using Differentiated Admission Control." in Journal of Multimedia Tools and Applications, Special Issue on QoS in Multimedia Networks, Vol. 17, pp. 213 - 232, July 2002.
S. Madria, M. Tubaishat and B. Bhargava, "Performance Evaluation of Linear Hash Structures in a Nested Transaction Environment." in Journal of Systems and Software, Vol. 63, No. 3, May 2002.
S. Madria, M. Mohania, B. Bhargava and S. Bhowmick, "Mobile Data and Transactions." in Information Science Journal, Vol. 141, No. 3-4, April 2002.
S. Madria, S.Goel and B. Bhargava, "Adaptive Constrained Locking Protocol for High Data Contention Environment: Correctness and Performance." in Information and Software Technology Journal, Vol 42(9), 2001.
A. Zhang, M. Nodine and B. Bhargava, "On Semi-Atomicity for Flexible Transactions in Distributed Database Systems." in IEEE Transactions on Knowledge and Database Engineering, Vol. 13, No. 3, 2001.
S. Madria, S. Maheshwari, B. Chandra and B. Bhargava, "Crash Recovery in an Open and Safe Nested Transaction Model: Formalization and Correctness." in International Journal of Co-operative Information Systems, Vol 10(1-2), 2001.
B. Bhargava, "A Study of Communication Delays for Web Transactions." in Cluster Computing Journal, Vol 4(4), pp. 319 - 333, 2001.
S. Madria and B. Bhargava, "A Transaction Model for Improving Data Availability in Mobile Computing." in Distributed and Parallel Databases, 10(2), 2001.

Conference

W. Wang, Z. Li, R Owens, B. Bhargava, .Secure and Efficient Access to Outsourced Data., ACM Cloud Computing Security workshop, CCSW2009 in conjunction with the 16th ACM Conference on Computer and Communications Security (CCS) , November 2009, Chicago, IL
E. Ferreira, R. Olivier, G. Carrijo, B. Bhargava, .Intrusion Detection in Wireless Mesh Networks Using a Hybrid Approach., IEEE International Conference on Distributed Computing Systems workshop SAHN, May, 2009, Montreal.
B. Bhargava, R. Olivier, Y. Zhang, N. Idika, .Addressing Collaborative Attacks and Defense in Ad Hoc Wireless Networks., IEEE International Conference on Distributed Computing Systems workshop SAHN, May, 2009, Montreal.
W. Wang, B. Bhargava, .Defending against Collaborative Packet Drop Attacks on MANET., in Proceedings of IEEE Symposium on Reliable Distributed System (SRDS) workshop on Dependable Network Computing and Mobile Systems, Sept., 2009, Buffalo, NY
R. Olivier, B. Bhargava, M Azarmi, W. Ferreira, W. Wang, and M. Linderman, .Developing Attack Defense Ideas for Ad Hoc Wireless Networks. in Proceedings of IEEE Symposium on Reliable Distributed System (SRDS) workshop on Dependable Network Computing and Mobile Systems, Sept., 2009, Buffalo, NY
B. Panja, S. Madria, and B. Bhargava, "Energy and Communication Efficient Group Key Management Protocol for Hierarchical Sensor Networks." in IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing (SUTC2006), June 2006.
A. Habib, D. Xu, M. Atallah, B. Bhargava. "Verifying Data Integrity in Peer to Peer Video Streaming." in Proceedings of Multimedia SPIE/ACM Twelth Conference on Computing and Network (MMCN), Berkeley, January 2005.
G. Ding, Z. Sahinoglu, P. Orlik, J. Zhang, and B. Bhargava, "Reliable Broadcast in ZigBee Networks." in IEEE Conference on Sensor and Ad Hoc Communications and Networks (SECON), Santa Clara, September, 2005.
A. Kumar, A. Bhargava, B. Bhargava, S. Madria, "Adaptable Web Browsing of Images in Mobile Computing Environment: Experiments and Observations." in International Conference on Distributed Computing & Internet Technology (ICDCIT),Bhubaneswar, India, Dec. 2005.
R. M. Garimella, H. R. Gogineni, and B. Bhargava, "Modeling Adaptive Routing in Wireless and Other Networks Using Coupled Queues." in the 12th IEEE International Conference on High Performance Computing: Workshop on Next Generation Wireless networks, Goa, December 18-21, 2005.
J. Kong, Z. Ji, W. Wang, M. Gerla, R. Bagrodia, and B. Bhargava, "Low-cost Attacks against Packet Delivery, Localization and Time Synchronization Services in Under-Water Sensor Networks." in Proceedings of ACM Workshop on Wireless Security (WiSe), in conjunction with MobiCom, 2005.
W. Wang, and B. Bhargava, Key "Distribution and Update for Secure Inter-group Multicast Communication." in Proceedings of ACM Workshop on Security of Ad Hoc and Sensor Networks (SASN), in conjunction with ACM CCS, 2005.
G. Ding and B. Bhargava, "Peer-to-peer File-sharing over Mobile Ad hoc Networks." in the First International Workshop on Mobile Peer-to-Peer Computing, Orlando, Florida, March 2004.
P. Ruth, D. Xu, B. Bhargava, and F. Regnier. "E-notebook Middleware for Accountability and Reputation Based Trust in Distributed Data Sharing Communities." in Proceedings of 2nd International Conference on Trust Management (Springer Verlag), London, UK, March 2004.
M. Jenamani, L. Lilien, and B. Bhargava, "Anonymizing Web Services Through a Club Mechanism with Economic Incentives." in Proceedings of International Conference on Web Services (ICWS 2004), San Diego, California, July 2004, pp. 792-795.
B. Bhargava and L. Lilien. "Private and Trusted Collaborations." in Proceedings of NSF/NSA/AFRL Conference on Secure Knowledge Management (SKM), Amherst, N.Y., Sept. 2004. (Invited paper.)
Yi Lu, Weichao Wang, Dongyan Xu, and B. Bhargava, "Trust-Based Privacy Preservation for Peer-to-peer Media Streaming." in Proceedings of NSF/NSA/AFRL Conference on Secure Knowledge Management (SKM), Amherst, NY, Sep. 2004. Selected as one of the two best papers)
Yuhui Zhong, and B. Bhargava, "Using Entropy to Tradeoff Privacy and Trust." in Proceedings of NSF/NSA/AFRL Conference on Secure Knowledge Management (SKM), Amherst, NY, Sep. 2004.
W. Wang and B. Bhargava, "Visualization of Wormholes in Sensor Networks." in Proceedings of ACM Workshop on Wireless Security (WiSe), in conjunction with MobiCom, October, 2004.
G. Ding, X. Wu, and B. Bhargava. "A Simulation Study on Multi-Rate Mobile Ad Hoc Networks." in ACM Workshop on Performance Evaluation of Wireless Ad Hoc, Sensor, Ubiquitous Networks, Venice, Italy, Oct. 2004.
B. Bhargava and L. Lilien. "Vulnerabilities and Threats in Distributed Systems." in Proceedings of International Conference on Distributed Computing & Internet Technology (ICDCIT), Bhubaneswar, India, Dec. 2004. (Keynote paper.)
B. Bhargava, Y. Zhong, and Y. Lu, "Fraud Formalization and Detection." in the proceedings of DaWak 2003.
I. Chung, B. Bhargava, M. Mahoui, and L. Lilien, "Autonomous Transaction Processing Using Data Dependency in Mobile Environments." in FTDCS 2003, San Juan, Puerto Rico, May 2003.
G. Ding, H. Ghafoor and B. Bhargava, "Resilient Video Transmission over Wireless Networks." in the 6th IEEE International Conf. on Object-oriented Real-time Distributed Computing, Japan, May 2003.
M. Hefeeda and B. Bhargava, "On-Demand Media Streaming Over the Internet." in FTDCS'03.
Y. Lu, W. Wang, Y. Zhong and B. Bhargava, "Study of Distance Vector Routing Protocols for Mobile Ad Hoc Networks." in the proceedings of IEEE International Conference on Pervasive Computing and Communications (PerCom'2003),Texas, March 2003.
W. Wang, Y. Lu and B. Bhargava, "On Security Study of Two Distance Vector Routing Prototols for Mobile Ad Hoc Networks." in the proceedings of IEEE International Conference on Pervasive Computing and Communications (PerCom'2003), Texas, March 2003.
A. Habib, M. Hefeeda and B. Bhargava, "Detecting Service Violations and DoS Attacks." in proceedings of Network and Distributed System Security (NDSS'03,)Feb. 2003.
Y. Lu, W. Wang and B. Bhargava, "Hierarchical Structure for Supporting Movable Base Stations in Wireless Networks." in the proceedings of International Conference on Telecommunications (ICT'2003), Papeete, French Polynesia, Feb. 2003.
W. Wang, Y. Lu and B. Bhargava, "On Vulnerability and Protection of Ad Hoc On-demand Distance Vector Prototol." in the proceedings of International Conference on Telecommunications (ICT'2003), Papeete, French Polynesia, Feb. 2003.
B. Bhargava and Y. Zhong, "Authorization Based on Evidence and Trust." in Data Warehouse and Knowledge Management Conference (DaWak-2002), Aix en Provence, France, Sept. 2002.
E. Terzi, Y. Zhong, B. Bhargava, Pankaj and S. Madria, "An Algorithm for Building User-Role Profiles in a Trust Environment." in Data Warehouse and Knowledge Management Conference (DaWak-2002), Aix en Provence, France, Sept. 2002.
D. Xu, M. Hefeeda, S. Hambrusch and B. Bhargava, "On Peer-to-Peer Media Streaming." in Proceedings of IEEE ICDCS'02, Vienna, Austria, July, 2002.
A. Habib, B. Bhargava, S. Fahmy, "A Round Trip Time and Time-out Aware Traffic Conditioner for Differentiated Services Networks." in Proceedings of IEEE International Conference on Communications (ICC), NY, April 2002.
A. Habib, S. Fahmy, B. Bhargava, "Design and Evaluate of an Adaptive Traffic Conditioner for Differentiated Services Networks." in Proceedings of IEEE International Conference on Computer Communications and Networks (IC3N), pp 90-95 Phoenix, Oct 2001.
Y. Lu and B. Bhargava, "An Architecture for Secure Wireless Networking." in IEEE Workshop on "Reliable and Secure Application in Mobile Environemnt, New Orleans, Oct. 2001.
Y. Zhong, B. Bhargava and M. Mahoui, "Trustworthiness Based Role Assignment in Dynamic Web Environment." in IEEE Workshop on "Security in Distributed Data Warehousing", New Orleans, Oct. 2001.
M. Mahoui, B. Bhargava and Y. Zhong, "Separating Between Trust and Access Control Policies: A Necessity for Web Applications." in IEEE Workshop on "Security in Distributed Data Warehousing", New Orleans, Oct. 2001.
A. Bhargava and B. Bhargava, "Applying Fault-tolerance principles to security research." in Proceedings of IEEE Symposium on "Reliable Distributed System", New Orleans, Oct. 2001.
K. Xu and B. Bhargava, "A Functional Approach for Advanced Database Applications." in Third International Conference on Information Integration and Web-based Applications and Services, Linz, Austria, Sept. 2001.
A Habib, B Bhargava, "Unresponsive Flow Detection and Control in Differentiated Services Networks" in Proceedings of 13th IASTED International Conference on Parallel and Distributed Computing and Systems (PDCS), Anaheim CA, Aug 2001.
Y. Lu and B. Bhargava, "Achieving Flexibility and Scalability: A New Architecture for Wireless Network." in Proceedings of IC'2001, Las Vegas, Jun. 2001.
A. Bhargava and M. Zoltowski, "Sensors and Wireless Communication for Medical Care." in Proceedings of DEXA, Prague, Czech Republic, Sep. 2003.
Y. Zhong and B. Bhargava, "Authentication-Driven Authorization on Web Access." in Proceedings of IC'2001, Las Vegas, Jun. 2001.
M. Mohoui, B. Bhargava and M. Mohania, "Data Mining for Web Security." in Proceedings of IC'2001, Las Vegas, Jun. 2001.

Poster and Tech Report

M. Hefeeda, A. Habib, D. Xu and B. Bhargava, "CollectCast: A Tomography-Based Network Service for Peer-to-Peer Streaming."in ACM SigComm 2003 Poster Session.
Weichao Wang, Bharat Bhargava, Yi Lu and Xiaoxin Wu, "Detecting Wormhole Attacks in Ad Hoc Networks without Clock Synchronization Assumption." in ACM Workshop on Wireless Security (WiSe) 2003 Poster Session.

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Students/Postdocs:

Graduate Students

Postdocs

Ruy Olivier

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Miscellaneous Research Materials:

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Teaching:

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Colloquia and conference slides:

Abstract
Detecting Service Violation in Internet and Mobile Ad Hoc Networks Slides, Abstract
Trust-based Privacy Preservation for Peer-to-peer Data Sharing Slides
2004 December ICDCIT "Vulnerabilities and Threats in Distributed Systems" - conference slide presentation and extended slide presentation:: Slides, Extended Slides.
2004 October NSF IDM Trust Slides: Slides
2004 NSF/NSA/AFRL Buffalo workshop: Entropy Paper, P2P Data Sharing Paper, CAMA Poster, Location Privacy Slides, Location Privacy Paper
2004 NSF IDM Boston PI Meeting: Report
Academic Talk at Your University: Abstract, Bio, Seminar Slides
Pittsburgh PI Meeting: Slides
Talk at WSU: Abstract, Bio, Seminar Slides, Detailed Slides, Vision
Anonymizing Web Service Slides 2004: slides
Private and Trusted Interactions - CERIAS Symposium, March 2004: slides
Anu Bhargava's Talk at University of Bern, 2004: slides
Talk at ECE Department, Northwestern University: slides
Talk at Motorola: Short Version, Full Version
PerCom 2003 Bhargava : slides
PerCom 2003 Wang : slides
vision
Talk at MDDS 2003: slides
Talk at DaWak 2003: slides
Talk at NSF IDM Workshop, Seattle, 2003: Breakout, Formalization
Talk at IU Med: slides
Talk for Secure Data Warehouse: slides
Talk at Sweden, Berlin, and Helsinki: slides
Talk at Karlstad: slides
Privacy: slides
Collaborative Attack Slides
ICSM 2007 slides

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Information for prospective students:

Graduate-students not at Purdue:

Please apply directly to the dept. RA positions are only available to students who have spent one year at CS and passed qualifier exams.

Undergraduate research:

Please put your transcripts and resume in my mail box. Please communicate with students in Raidlab (CS 145) and check our website. Give me an abstract of what independent study project that you plan to do and how you will proceed. After this information, I will communicate with you. You will work with a grad student in Raidlab to complete your project.

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