Maria Striki
PhD-Electrical and Computer Engineering
Expected Graduation: Spring 2007
Resume
Research Interests
My research interests lie in the area of network security for wireless communications. In particular, I am interested in the design of a key management framework for multicast communications, in a resource constrained, infrastructure-less, dynamic environment, such as the mobile ad-hoc networks (MANETs). I am currently working for the Collaborative Technology Alliances (CTA) project, on tasks related to security for group communications, which are pertinent to my research for the Ph.D as well. My work focuses mostly on: the design and performance evaluation of multicast key generation and distribution protocols for MANETs, entity authentication and access control algorithms, trust establishment, leader election, interaction of routing with key management and the effects of this cross-layer consideration on key management. Other research interests lie in the study and design of (secure) routing algorithms, algorithms for trust models and propagation of trust in MANETs, in cryptography, and in mobile computing. Previous research includes wireless multicasting, cellular and ad hoc networks.
Publications
Maria Striki, John Baras. “Fault Tolerant Extension of Hypercube Algorithm for Efficient, Robust, Group Communications in MANETs”, submitted for publication.
Maria Striki, Giovanni Di Crescenzo. “Cross-Layer Consideration for highly Efficient Key Agreement in Ad Hoc networks – DCKA: A novel Hybrid Key Agreement Protocol “, submitted for publication.
Maria Striki, John Baras. “A Robust, Distributed TGDH-based Scheme for Secure Group Communications in MANETs “, submitted for publication.
Maria Striki, Giovanni Di Crescenzo. “Topology Driven Key Agreement in Mobile Ad Hoc Networks “, submitted for publication.
Maria Striki, John Baras. “Distributed Certification Authority Generation to Enhance Autonomous Key Management for Group Communications in MANETs”, Army Science Conference (ASC)’04, Orlando, FL.
Maria Striki, Giovanni Di Crescenzo. “Efficient Fault-Tolerant and Distributed Key Agreement for Secure Group Communications for Arbitrary Deployment in MANETs”, Army Science Conference (ASC) ’04, Orlando, FL.
Maria Striki, John Baras. "Towards Integrating Key Distribution with Entity Authentication for Efficient, Scalable and Secure Group Communication in MANETs", ICC’04 Conference, Paris, France, June 2004
Maria Striki, John Baras. "Efficient Scalable Key Agreement Protocols for Secure Multicast Communication in MANETs", CTA ‘03 symposium, College Park MD, May 2003.
Maria Striki, John Baras. “Key Distribution Protocols for Secure Multicast Communication Survivable in MANETs”, IEEE MILCOM ‘03, Boston MA, October 2003.
Maria Striki, John Baras. “Scalable and Fault-Tolerant Key Agreement Octopus Protocols for Secure Multicast Communication in MANETs”, 37th Conference on Information Sciences and Systems (CISS ‘03), Johns Hopkins, Baltimore MD, March 2003.
Maria Striki, John Baras. “Two Level Hybrid Key Scheme for Efficient Key Distribution in Mobile Ad-Hoc Networks“. Army Science Conference (ASC) ’02 Procs, Orlando, FL.
P.Demestichas, E.Tzifa, V.Demesticha, N.Georgantas, G.Kotsakis, M.Striki, M.Kilanioti, M.Anagnostou, M.Theologou. “Control of the location update and paging signaling load in cellular systems by means of planning tools”, Vehicular Technology Conference - VTC, 1999 - Fall. IEEE VTS 50th , Volume: 4 , 1999, Page(s): 2119 -2123 vol.4
P.Demestichas, N.Georgantas, E.Tzifa, V.Demesticha, M.Striki, M.Kilanioti, M.Theologou. “Computationally efficient algorithms for location area planning in future cellular systems”. Elsevier Journals, Computer Communications 23(13): 1263-1280 (2000)
M. Striki, K. Manousakis, J. Baras “Implementation of Octopus based Key Agreement Protocols”, IEEE SECON’05 Conference, Santa Clara, CA, Sept. 2005
Maria Striki, John Baras, “Two Level Hybrid Key Scheme for Efficient Key Distribution in Mobile Ad-Hoc Networks “, Army Science Conference (ASC) ’02, Orlando, FL
Maria Striki, John Baras. “Fault Tolerant Extension of Hypercube Algorithm for Efficient, Robust, Group Communications in MANETs”, HyNet, TR-2005-108, October 2005.
Maria Striki, John Baras, “A Robust, Distributed TGDH-based Scheme for Secure Group Communications in MANETs”, Center of Satellite and Hybrid Communications (CSHCN), TR-2005-97, July 2005.
Maria Striki, John Baras. “Two-Level Hybrid Scheme for Efficient Key Distribution in Mobile Ad-Hoc Networks and overview of key distribution protocols“. Center of Satellite and Hybrid Communications (CSHCN), TR, Jan. 2003.
Maria Striki, John Baras. “Scalable and Efficient Key Agreement Protocols for Secure Multicast Communication in MANETs “. Center of Satellite and Hybrid Communications (CSHCN), TR, Dec. 2002.
Internships
Summer ‘05: Telcordia Technologies, NJ, under the supervision of Dr Giovanni Di Crescenzo and Dr Simon Tsang. We performed a comprehensive investigation of key agreement over ad hoc networks. In addition to a formal modeling of such networks and of the key agreement problem over them, we considered the natural approach of directly extending a number of known “logical” key agreement protocols to real multi-hop ad-hoc networks, and evaluated the efficiency of such approaches. We then proposed non-trivial extensions based on efficient topology-driven simulations of logical networks over an arbitrary physical network, towards the optimization of the formulated cost functions. Indeed, the resulting protocols are significantly more efficient with respect to those functions. In addition, we designed a novel topology-driven hybrid key agreement protocol that outperforms all previously considered schemes.
Summer ‘04: Telcordia Technologies, NJ, under the supervision of Dr Giovanni Di Crescenzo and Dr Rajesh Talpade. We designed a novel backbone framework that supports and enhances the execution of either contributory or centralized key management protocols for secure group communications in MANETs. This framework is based on the generation of a virtual minimum spanning (VMST) tree over a subset of network nodes on top of which key generation protocols can be executed more efficiently, and the dynamics of the network (mobility, failures, membership changes) can be handled more effectively. The latter can be partially attributed to the following factors: (a) the hierarchy issued (VMST nodes become cluster-heads): more resilient versions of the studied protocols are applied on a smaller subset of nodes, and (b) the application of efficient algorithms that handle membership changes and failures, tailored to the structure of the spanning tree, and to the inherent operation of contributory schemes.
Contact Information
Adress:Bldg. A.V.Williams, Rm. 3181
University of Maryland
College Park, MD, 20742
Tel no.:301-405-6558
email:mstriki@glue.umd.edu
