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TRICERT: A Distributed Certified E-Mail Scheme Giuseppe Ateniese Breno de Medeiros Michael T. Goodrich
 

Summary: TRICERT: A Distributed Certified E-Mail Scheme
Giuseppe Ateniese Breno de Medeiros Michael T. Goodrich
Department of Computer Science
The Johns Hopkins University
E-mail: {ateniese,breno,goodrich}@cs.jhu.edu
Abstract
In this paper we present protocols for distributed certified e-mail,
which use encryption to ensure both confidentiality and fairness. As
with other protocols for certified e-mail, ours achieve fairness by plac-
ing trust on an external entity, referred to as the Trusted Third Party
(TTP). The TTP can become a bottleneck, however, and we explore
scenarios that support a distributed TTP, in the context of both off-line
and online protocols. With several servers dividing the TTP respon-
sibilities, the level of confidence placed in individual servers can be
reduced without compromising the TTP's overall trust.
Keywords: Secure E-commerce, Fair Exchange, Certified E-mail,
Semi-trusted TTP.
1 Introduction
Considerably valuable data - commercial, medical,
educational and scientific - is today stored in electronic

  

Source: Ateniese, Giuseppe - Department of Computer Science, Johns Hopkins University

 

Collections: Computer Technologies and Information Sciences