trigger factors of the G 2 MPLS control plane architectures (Overlay and Integrated), services procedures and the Gridenabled network interfaces provided by IST Phosphorus project.

Report on Harmony System Enhancements and Testing The Harmony system, after a first proof-of-concept stage, has evolved to a more stable system. In the last phase of the project, several enhancements have been done to the system. The first group of enhancements refers to the communication between

This paper presents results from the IST Phosphorus project that studies and implements an optical Grid test-bed. A significant part of this project addresses scheduling and routing algorithms and dimensioning problems of optical grids. Given the high costs involved in setting up actual hardware

CrossFlow is an ESPRIT/IST project for support of cross-organizational workflow management in dynamically established virtual enterprises. The business paradigm of CrossFlow is that of dynamic service outsourcing, in which one organization (service consumer) outsources part of its business process

This article summarizes the main achievements of the Multi-Element Transmit and Receive Antennas (METRA) Project, an IST research and technological development project carried out between January 2000 and June 2001 by Universitat Politcnica de Catalunya, the Center for Personkommunikation

this paper was partly supported by the Irish Higher Education Authority's Programme for Research in Third Level Institutions cycle 0 (1998-2001) and by the Future and Emerging Technologies programme of the Commission of the European Union under research contract IST-2000-26031 (CORTEX - CO

This document describes an architecture for secure service replication in an asynchronous network like the Internet, where a malicious adversary may corrupt some servers and control the network. The underlying protocols for Byzantine agreement and for atomic broadcast rely on recent developments in threshold cryptography. These assumptions are discussed in detail and compared to related work from the last decade. A formal model using concepts from modern cryptography is developed, modular definitions for several broadcast problems are presented, including reliable, atomic, and secure causal broadcast, and protocols implementing them. Reliable broadcast is a basic primitive, also known as the Byzantine generals problem, providing agreement on a delivered message. Atomic broadcast imposes additionally a total order on all delivered messages. A randomized asynchronous atomic broadcast protocol is presented that maintains liveness and safety at the same time. It is based on a new e#cient protocol for multi-valued asynchronous Byzantine agreement with an external validity condition. Secure causal broadcast extends atomic broadcast by encryption to guarantee a causal order among the delivered messages. Furthermore, it is discussed how several distributed trusted applications can be realized using such an architecture: a digital notary service, a trusted third party for fair exchange, a certification authority, and an authentication service.

This is the description of the MIND resource selection framework. It extends the decision- (for dissemination) theoretic framework formerly developed by UNIDO by using a logistic function for modelling the relationship between score and probability of relevance, and by approximating the indexing weights (and, as a consequence, the document scores) by a normal distribution.

This article summarizes the main achieve-ments of the Multi-Element Transmit and

Project funded by the European Community under the “Information Society Technologies ” Programme (1998-2002)