John Iliadis

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The EUROMED-ETS pilot system offers a number of security functionalities using off-the-shelf available products, in order to protect Web-based medical applications. The basic concept used by the proposed security architecture is the Trusted Third Party (TTP). A TTP is used in order to generate, distribute and revoke digital certificates to medical(More)
A wide spectrum of certificate revocation mechanisms is currently in use. A number of them have been proposed by standardisation bodies, while some others have originated from academic or private institutions. What is still missing is a systematic and robust framework for the sound evaluation of these mechanisms. We present a mechanism-neutral framework for(More)
A wide spectrum of certificate revocation mechanisms is currently in use. A number of them have been proposed by standardisation bodies, while some others have originated from academic or private institutions. What is still missing is a systematic and robust framework for the sound evaluation of these mechanisms. We present a mechanism-neutral framework for(More)
The EUROMED-ETS schema provides a robust security framework for telemedical applications operating over the World Wide Web. It is based on a trusted third party architecture under which certificate authorities store the public-key certificates of participating hospitals and medical practitioners. Digital signatures are used to provide peer and data origin(More)
In this paper we describe a pilot architecture aiming at protecting Web-based medical applications through the development of a virtual private medical network. The basic technology, which is utilized by this integrated architecture, is the Trusted Third Party (TTP). In specific, a TTP is used to generate, distribute, and revoke digital certificates to/from(More)
This paper reports on the results obtained by the pilot operation of Trusted Third Parties (TTP) for secure telemedical applications over the WWW. The work reported on herein was carried out within the context of EUROMED-ETS, a R&D project funded by the INFOSEC office of Directorate General XIII of the European Union. The paper discusses the platform used,(More)
A number of mechanisms have been proposed for generating and disseminating information on the status of certificates. Their operation is different, if not contradicting sometimes, and advantages and disadvantages depend on the requirements of the underlying PKI. PKI designers and implementors should perform a small scale study before deploying such a(More)