CoSMed: A Confidentiality-Verified Social Media Platform

  • Thomas Bauereiß
  • Armando Pesenti Gritti
  • Andrei Popescu
  • Franco Raimondi
Conference paper

DOI: 10.1007/978-3-319-43144-4_6

Part of the Lecture Notes in Computer Science book series (LNCS, volume 9807)
Cite this paper as:
Bauereiß T., Pesenti Gritti A., Popescu A., Raimondi F. (2016) CoSMed: A Confidentiality-Verified Social Media Platform. In: Blanchette J., Merz S. (eds) Interactive Theorem Proving. ITP 2016. Lecture Notes in Computer Science, vol 9807. Springer, Cham

Abstract

This paper describes progress with our agenda of formal verification of information-flow security for realistic systems. We present CoSMed, a social media platform with verified document confidentiality. The system’s kernel is implemented and verified in the proof assistant Isabelle/HOL. For verification, we employ the framework of Bounded-Deducibility (BD) Security, previously introduced for the conference system CoCon. CoSMed is a second major case study in this framework. For CoSMed, the static topology of declassification bounds and triggers that characterized previous instances of BD security has to give way to a dynamic integration of the triggers as part of the bounds.

Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Thomas Bauereiß
    • 1
  • Armando Pesenti Gritti
    • 2
    • 3
  • Andrei Popescu
    • 2
    • 4
  • Franco Raimondi
    • 2
  1. 1.German Research Center for Artificial Intelligence (DFKI)BremenGermany
  2. 2.School of Science and TechnologyMiddlesex UniversityLondonUK
  3. 3.Global NoticeBoardLondonUK
  4. 4.Institute of Mathematics Simion Stoilow of the Romanian AcademyBucharestRomania

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