Certified E-Mail with Temporal Authentication: An Improved Optimistic Protocol

Autor: Clemente Galdi, Raffaella Giordano
Přispěvatelé: S. K. Katsikas, J. Lopez, G. Pernul, Galdi, Clemente, R., Giordano
Jazyk: angličtina
Rok vydání: 2004
Předmět:
Zdroj: Trust and Privacy in Digital Business ISBN: 9783540229193
TrustBus
Scopus-Elsevier
Popis: In this paper we present a protocol for Certified E-Mail that ensures temporal authentication. We first slightly modify a previously known three-message optimistic protocol in order to obtain a building block that meets some properties. We then extend this basic protocol enhancing it with the temporal authentication by adding a single message, improving the message complexity of known protocols. The fairness of the protocol is ensured by an off-line Trusted third party that joins the protocol only in case one of the players misbehaves. In order to guarantee temporal authentication we assume the existance of an on-line time stamping server.
Databáze: OpenAIRE