Non-repudiation protocols for multiple entities

Authors:
Jose A. Onieva;Jianying Zhou;Javier Lopez
Affiliations:
Computer Science Department, E.T.S. Ingenieria Informatica University of Malaga, 29071 Malaga, Spain;Institute for Infocomm Research, 21 Heng Mui Keng Terrace, Singapore 119613, Singapore;Computer Science Department, E.T.S. Ingenieria Informatica University of Malaga, 29071 Malaga, Spain
Venue:
Computer Communications
Year:
2004

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Abstract

Non-repudiation is a security service that provides cryptographic evidence to support the settlement of disputes. In this paper, we introduce the state-of-the-art of non-repudiation protocols for multiple entities. We extend an existing multi-party non-repudiation (MPNR) protocol to allow an originator to send different messages to many recipients in a single transaction. We further propose an optimistic multi-party non-repudiation protocol for exchange of different messages. The performance of our protocols with enhanced functionalities is still promising in comparison with existing MPNR protocols.