Publications associées à Method for securing communications between a terminal and an additional user equipment

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Multi-terminal Secrecy in a Linear Non-coherent Packetized Networks

Christina Fragouli, Mahdi Jafari Siavoshani

We consider a group of m+1 trusted nodes that aim to create a shared secret key K over a network in the presence of a passive eavesdropper, Eve. We assume a linear non-coherent network coding broadcast channel (over a ﬁnite ﬁeld F_q ) from one of the hones ...

2012

Group secret key agreement over state-dependent wireless broadcast channels

Christina Fragouli, Suhas Diggavi, Mahdi Jafari Siavoshani

We consider a group of m trusted nodes that aim to create a shared secret key K, using a state-dependent wireless broadcast channel that exists from one of the honest nodes to the rest of the nodes including a passive eavesdropper Eve. All of the trusted n ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

A mobile world of security

Rüdiger Urbanke, Christina Fragouli, Panagiotis Papadimitratos, Christine Neuberg

We propose a novel approach to establish crypto- graphic keys among mobile users and a networking infrastruc- ture. Our approach comes at a low cost and can either be used as an alternative to existing solutions or can be employed in a complementary way. O ...

2011

Erased Secrets: Practical Information-Theoretic Group Secrecy

Christina Fragouli, Suhas Diggavi, Mahdi Jafari Siavoshani, Uday Kiran Pulleti

We consider the scenario where a group of wireless nodes want to exchange a secret key, such that no eavesdropper can guess the key. Today, this can be achieved using publickey cryptography, e.g., the Diffie-Hellman or the RSA keyexchange algorithms. Howev ...

2010

Group Secret Key Generation over Broadcast Erasure Channels

Christina Fragouli, Suhas Diggavi, Mahdi Jafari Siavoshani, Uday Kiran Pulleti

We consider a group of m trusted nodes that aim to create a shared secret key K over a wireless channel in the presence an eavesdropper Eve. We assume an erasure broadcast channel from one of the honest nodes to the rest of them including Eve. All of the t ...

2010

Model Checking Detectability of Attacks in Multiagent Systems

Information security is vital to many multiagent system applications. In this paper we formalise the notion of detectability of attacks in a MAS setting and analyse its applicability. We introduce a taxonomy of detectability specifications expressed in tem ...

International Foundation for Autonomous Agents and Multiagent Systems2010

Interference-Resilient Information Exchange

Rachid Guerraoui, Seth Gilbert

This paper presents an efficient protocol for reliably exchanging information in a single-hop, multi-channel radio network subject to unpredictable interference. We model the interference by an adversary that can simultaneously disrupt up to t of the C ava ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Secure Communication using an Untrusted Relay via Sources and Channels

Michael Christoph Gastpar

Confidential communication aided by a relay without security clearance is studied. General strategies and outer bounds are derived for the problem of secret communication and secret key generation when correlated observations at all terminals are available ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Method for securing communications between a terminal and an additional user equipment

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Chattez avec Graph Search

Multi-terminal Secrecy in a Linear Non-coherent Packetized Networks

Group secret key agreement over state-dependent wireless broadcast channels

A mobile world of security

Erased Secrets: Practical Information-Theoretic Group Secrecy

Group Secret Key Generation over Broadcast Erasure Channels

Model Checking Detectability of Attacks in Multiagent Systems

Secure communication using authenticated channels

Interference-Resilient Information Exchange

Information-theoretic secrecy for wireless networks

Secure Communication using an Untrusted Relay via Sources and Channels

A mobile world of security

Secure communication using authenticated channels

Erased Secrets: Practical Information-Theoretic Group Secrecy

Interference-Resilient Information Exchange

Information-theoretic secrecy for wireless networks

Model Checking Detectability of Attacks in Multiagent Systems

Secure Communication using an Untrusted Relay via Sources and Channels

Multi-terminal Secrecy in a Linear Non-coherent Packetized Networks

Group Secret Key Generation over Broadcast Erasure Channels

Group secret key agreement over state-dependent wireless broadcast channels