A Fully Distributed Proactively Secure Threshold-Multisignature Scheme



INTRODUCTION
IN distributed systems it is sometimes necessary for users
to share the power to use a cryptosystem , . The
system secret is divided up into shares and securely stored
by the entities forming the distributed cryptosystem. The
main advantage of a distributed cryptosystem is that the
secret is never computed, reconstructed, or stored in a
single location, making the secret more difficu ....etc

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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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Optimizing the Rekeying Cost for Contributory Group Key Agreement Schemes
Abstract
Although a contributory group key agreement is a promising solution to achieve access control in collaborative and dynamic
group applications, the existing schemes have not achieved the performance lower bound in terms of time, communication, and
computation costs. In this paper, we propose a contributory group key agreement that achieves the performance lower bound by
utilizing a novel logical key tree structure, called PFMH, and the concept of pha ....etc

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threshold multisignature source code

Threshold Multi signature Scheme Project:
The main aim of this abstract is presenting secure and efficient way of Threshold multi signature scheme. The fundamental properties are defined in this scheme consist the all properties of the multi signature and thresh hold group signatures.

Existing System:

For the generation of digital signature more shareholders are required. The shareholders must contribute equally to produce valid digital signatures.The scheme consist the all properties of the multi signat ....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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to get information about the topic secure multisignature generation for group communication related topic refer the page link bellow

http://seminarsprojects.net/Thread-multi-signature ....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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hi i want existing & proposed algorithm & also source code in balancing revocation & storage trade-off in secure group communication. ....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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