A Trusted Message Bus Built on Top of D-Bus

  • Newton C. Will UFPR
  • Tiago Heinrich UFPR
  • Amanda B. Viescinski UFPR
  • Carlos A. Maziero UFPR


A wide range of applications use Inter-Process Communication (IPC) mechanisms to communicate between each other or between their components running in different processes. A well-known IPC mechanism in UNIX-like systems is D-Bus, which allows processes to communicate by receiving and routing messages. Despite being widely used, such system lacks mechanisms to provide end-to-end data confidentiality. In this paper we propose the use of Intel Software Guard Extensions (SGX) to provide a trusted communication channel between local applications over the D-Bus message bus system. We obtained stronger security guarantees in message confidentiality and integrity while keeping a small Trusted Computing Base (TCB) and compatibility with the reference D-Bus system.


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WILL, Newton C.; HEINRICH, Tiago; VIESCINSKI, Amanda B.; MAZIERO, Carlos A.. A Trusted Message Bus Built on Top of D-Bus. In: SIMPÓSIO BRASILEIRO DE SEGURANÇA DA INFORMAÇÃO E DE SISTEMAS COMPUTACIONAIS (SBSEG), 20. , 2020, Petrópolis. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2020 . p. 175-187. DOI: https://doi.org/10.5753/sbseg.2020.19236.

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