uml diagrams for authenticated group key transfer protocol based on secret sharing project is required fr me urgently plzz provide us those uml diagrams ....etc

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Abstract Given a data point set , a query point set , and an integer , the Group Nearest Group (GNG) query finds a subset ( ) of points from such that the total distance from all points in to the nearest point in is not greater than any other subset ( ) of points in . GNG query is a partition-based clustering problem which can be found in many real applications and is NP-hard. In this paper, Exhaustive Hierarchical Combination (EHC) algorithm and Subset Hierarchial Refinement (SHR) algorithm are developed for GNG query processing. W ....etc

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This article is presented by:Hui-Feng Huang and Yi-Jia Chang
Graduate School of Computer Science and Information Technology
National Taichung Institute of TechnologyAn Efficient Three Party Authenticated Key Exchange for Mobile Communications

ABSTRACT
In three-party password based key exchange protocol, a client is allowed to share a human-memorable password with a trusted server such that two clients can negotiate a session key to communicate with e ....etc

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We propose and analyze a scalable and efficient cluster-based group key management protocol for secure group communications in mobile ad hoc networks. For scalability and dynamic reconfigurability; we take a cluster-based approach by which group members are broken in to cluster-based subgroups and leaders in subgroups securely communicate with each other to agree on a group key in response to membership change and member mobility events. We show that secrecy requirement for group communication is satisfied. Further, there exists an optimal clus ....etc

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abstract is :

People waste many hours driving each day. Although unavoidable, this time can be very boring to motorists.Similar to people taking mass transit who often pass the time socializing with those around them, motorists could benefit from social interactions if they were given broader social opportunities. Unfortunately, existing Multiparty Voice Communication (MVC) systems do not scale to large numbersof users and do not provide adequate access controls. We present RoadSpeak, a scalable MVC system that allows motorists to automatica ....etc

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A Cluster-Based Security Architecture
for Ad Hoc Networks



Abstract

Secure communication is very important in computer
networks and authentication is one of the most eminent
preconditions. However, common authentication schemes are not
applicable in ad hoc networks because public key infrastructures
with a centralized certification authority are hard to deploy
there. We propose and evaluate a security concept based on a
distributed certification facility. A network is divided into clusters
with one ....etc

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Ad-hoc Voice-based Group Communication
The presently existing Multiparty Voice Communication (MVC) systems do not scale to large numbers of users and do not provide adequate access controls. RoadSpeak, a scalable MVC system is presented in this article. With this system, the motorists can automatically join Voice Chat Groups. voice chat message
buffering is made use of in the system to achieve interruptionfree
communication. a RoadSpeak prototype is demonstrated on the N95 smart phones using 3G technology. an MVC simulator is also pre ....etc

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woud you pls send me out the ppt and reports of the topic auhenticated group key transfer protocol based on secret sharing. ....etc

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there is a lot of Key Management Protocol in Wireless Sensor Network available i may list some of them

Dynamic Cluster-based Key Management Protocol in Wireless Sensor Network http://asmemesaIJICS/files/133/8-Lin_Shen.pdf
New Kind of Cluster-based Key Management Protocol in Wireless Sensor Network http://ieexplore.ieeiel5/4489617/4525150/04525197.pdf
Secure Key Management Protocol in the Wireless Sensor Network http://jips-kdlibrary/JIPS_v02_no1_paper10.pdf
Energy Efficient Key Management Protocol in Wireless Sensor Networks http://serscjourn ....etc

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Binary Tree Based Public-Key Management for
Mobile Ad Hoc Networks

Georgios Kambourakis, Elisavet Konstantinou and Stefanos Gritzalis
Info-Sec-Lab Laboratory of Information and Communications Systems Security
University of the Aegean, Samos GR-83200, Greece
{gkamb, ekonstantinou, sgritz}@aegean.gr

Abstract
The establishment of a Public Key Infrastructure (PKI) in Mobile Ad Hoc Networks (MANETs) is considered a difficult task because of the intrinsic characteristics of these networks. The absenc ....etc

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