Secure failure detection in TrustedPals

  • Authors:

  • Roberto Cortiñas;Felix C. Freiling;Marjan Ghajar-Azadanlou;Alberto Lafuente;Mikel Larrea;Lucia Draque Penso;Iratxe Soraluze

  • Affiliations:

  • The University of the Basque Country, San Sebastián, Spain;Department of Computer Science, University of Mannheim, Germany;Department of Computer Science, RWTH Aachen University, Germany;The University of the Basque Country, San Sebastián, Spain;The University of the Basque Country, San Sebastián, Spain;Department of Computer Science, University of Mannheim, Germany;The University of the Basque Country, San Sebastián, Spain

  • Venue:
  • SSS'07 Proceedings of the 9h international conference on Stabilization, safety, and security of distributed systems
  • Year:
  • 2007

Quantified Score

Hi-index 0.00

Visualization

Abstract

This paper presents a modular redesign of TrustedPals, a smartcard-based security framework for solving secure multiparty computation (SMC). TrustedPals allows to reduce SMC to the problem of fault-tolerant consensus between smartcards. Within the redesign we investigate the problem of solving consensus in a general omission failure model augmented with failure detectors. To this end, we give novel definitions of both consensus and the class of ⋄P failure detectors in the omission model and show how to implement ⋄P and have consensus in such a system with some weak synchrony assumptions. The integration of failure detection into the TrustedPals framework uses tools from privacy enhancing techniques such as message padding and dummy traffic.