نتایج جستجو برای: distribution key

تعداد نتایج: 1126998  

1996
Lars R. Knudsen Torben P. Pedersen

At Eurocrypt'95, Desmedt suggested a scheme which allows individuals to encrypt in such a way that the receiver can be traced by an authority having additional information. This paper shows that the proposed scheme does not have the required properties, by devising three non-speciied protocols misleading the authority. We also discuss how to repair Desmedt's scheme, such that our attacks are no...

2008
Katrin Hoeper Lidong Chen Antonio Izquierdo Manzanares Nada Golmie

In this paper, we discuss key management challenges for seamless handovers across heterogeneous wireless networks. We focus on utilizing existing keying material from previous access authentications to expedite network entry. For a seamless handover, keys must be available at the target network at the time of the handover. Currently, industry is still exploring possible ways to handle keys for ...

Journal: :I. J. Network Security 2005
Muhammad J. Bohio Ali Miri

In this paper we propose the self-healing feature for group key distribution through Subset Difference (SD) method proposed by D. Naor et al. The subset difference method is one of the efficient proposals for group key distribution, however, recently a polynomial based solution for key distribution was proposed by D. Liu et al., which has the similar message size but also provides self-healing ...

2003
Carlo Blundo Paolo D'Arco Massimiliano Listo

A self-healing key distribution scheme enables a group of users to establish a group key over an unreliable channel. In such a protocol, a group manager, to distribute a session key to each member of the group, broadcasts packets along the channel. If some packet gets lost, then users are still capable of recovering the group key using the received packets, without requesting additional transmi...

Journal: :Electr. Notes Theor. Comput. Sci. 2008
Keith M. Martin Maura B. Paterson

The term wireless sensor network is applied broadly to a range of significantly different networking environments. On the other hand there exists a substantial body of research on key establishment in wireless sensor networks, much of which does not pay heed to the variety of different application requirements. We set out a simple framework for classifying wireless sensor networks in terms of t...

2014
Sung-Woon Lee Hyunsung Kim

Wireless sensor networks (WSNs) are often deployed in potentially adverse or even hostile environment so that there are concerns on security issues in these WSNs. Sensor nodes with resource-constrained make security applications a challenging problem. Key agreement is a fundamental security service in WSNs, which enables sensor nodes to communicate securely with each other using cryptographic t...

Journal: :IEICE Transactions 2008
Jung Yeon Hwang Jongin Lim Dong Hoon Lee

Jeong et al. recently have proposed a strong ID-based key distribution scheme in order to achieve security against long-term key reveal and session state reveal attacks. In this letter, we show that, unfortunately, the ID-based key distribution scheme is vulnerable to an impersonation attack such that anyone can manipulate public transcripts generated by a user to impersonate the original user....

2017
Philip Chan Itzel Lucio-Martínez Xiaofan Mo Wolfgang Tittel

Journal: :Computer Standards & Interfaces 2005
Qiang Tang Chris J. Mitchell

In this paper we consider the security of two recently proposed anonymous conference key distribution schemes. We show that neither scheme is as practical as the authors claim and that, in certain circumstances, both schemes also suffer from security vulnerabilities. We also show that the attack described in one paper is invalid.

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