Concept

Cryptoprocesseur sécurisé

Publications associées (29)

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Enabling Secure Secret Sharing in Distributed Online Social Networks

Karl Aberer, Anwitaman Datta, Sonja Buchegger

We study a new application of threshold-based secret sharing in a distributed online social network (DOSN), where users need a means to back up and recover their private keys in a network of untrusted servers. Using a simple threshold-based secret sharing ...

Ieee Computer Soc Press, Customer Service Center, Po Box 3014, 10662 Los Vaqueros Circle, Los Alamitos, Ca 90720-1264 Usa2009

Reducing Fair Exchange to Atomic Commit

Rachid Guerraoui, Serge Vaudenay, Marko Vukolic, Gildas Avoine, Felix Gaertner

The fair exchange problem is key to trading electronic items in systems of mutually untrusted parties. We consider modern variants of such systems where each party is equipped with a tamper proof security module. The security modules trust each other but c ...

2005

Low-Power Current Mode Logic for Improved DPA-Resistance in Embedded Systems

Yusuf Leblebici, Zeynep Toprak Deniz

In this work, MOS Current Mode Logic (MCML) is analyzed for low power, low noise, mixed signal applications demanding high security such as embedded cryptographic processors and smart cards. We emphasize the possible extension of MCML gate usage for low sp ...

2005

Gracefully Degrading Fair Exchange with Security Modules

Rachid Guerraoui, Gildas Avoine

The fair exchange problem is key to trading electronic items in systems of mutually untrusted parties. In modern variants of such systems, each party is equipped with a tamper proof security module. The security modules trust each other but can only commun ...

2004

Reducing Fair Exchange to Atomic Commit

Rachid Guerraoui, Serge Vaudenay, Marko Vukolic, Gildas Avoine

The fair exchange problem is key to trading electronic items in systems of mutually untrusted parties.We consider modern variants of such systems where each party is equipped with a tamper proof security module. The security modules trust each other but ca ...

2004

Fair Exchange with Guardian Angels

Serge Vaudenay, Gildas Avoine

In this paper we propose a new probabilistic Fair Exchange Protocol which requires no central Trusted Third Party. Instead, it relies on a virtually distributed and decentralized Trusted Third Party which is formalized as a Guardian Angel: a kind of Observ ...

2003

Introducing Trusted Third Parties to the Mobile Agent Paradigm

Uwe Wilhelm

Systems that support mobile agents are increasingly being used on the global Internet. An important application that is considered for these agents is electronic commerce, where agents roam the World Wide Web in search of goods for their owners. In these a ...

Springer-Verlag1999

Introducing Trusted Third Parties to the Mobile Agent Paradigm

Levente Buttyan, Uwe Wilhelm

1999

On the Problem of Trust in Mobile Agent Systems

Levente Buttyan, Uwe Wilhelm

Systems that support mobile agents are increasingly being used on the global Internet. Security concerns dealing with the protection of the execution environment from malicious agents are extensively being tackled. We concentrate on the reverse problem, na ...

1998