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The Stream Exchange Protocol: A Secure and Lightweight Tool for Decentralized Connection Establishment.

Stefan Tatschner1,2, Ferdinand Jarisch1,3, Alexander Giehl1,3

  • 1Fraunhofer Institute AISEC, 85748 Garching bei München, Germany.

Sensors (Basel, Switzerland)
|August 10, 2021
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Summary

The Stream Exchange Protocol (SEP) collection offers secure, lightweight, and decentralized connection establishment building blocks. It enables reliable peer discovery and authentication for diverse network applications.

Keywords:
connectivityfederatedpeer-to-peersecure connection establishmenttrust model

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Area of Science:

  • Computer Science
  • Network Security
  • Distributed Systems

Background:

  • Increasing internet-capable devices complicate network and connection management.
  • Existing connectivity approaches (centralized, P2P, VPNs) address specific challenges but lack unified solutions for secure peer discovery and connection.
  • A unified framework for usable, scalable, and secure connection establishment remains a challenge.

Purpose of the Study:

  • To present the Stream Exchange Protocol (SEP) collection, a set of building blocks for secure, lightweight, and decentralized connection establishment.
  • To enable identification and authentication of communication partners using unique identities.
  • To facilitate reliable sharing of authentic data, like network locations and endpoints, via federated directories.

Main Methods:

  • Development of the Stream Exchange Protocol (SEP) collection, featuring unique identities for peer identification and authentication.
  • Utilization of federated directories as decentralized databases for sharing authentic peer data.
  • Creation of three demonstration tools: a decentralized file sharing app, a P2P network tunnel, and a decentralized data distribution application.

Main Results:

  • The SEP collection provides universally applicable, easy-to-use building blocks for secure decentralized connection establishment.
  • Federated directories enable reliable sharing of authentic peer data, enhancing discovery and trust.
  • Demonstration tools showcase the versatility of SEP for file sharing, network tunneling, and asynchronous data distribution.

Conclusions:

  • The Stream Exchange Protocol (SEP) collection offers a robust solution for secure, lightweight, and decentralized connection establishment.
  • SEP's design, incorporating unique identities and federated directories, addresses key challenges in peer discovery, authentication, and data sharing.
  • The demonstrated applications highlight SEP's potential for enhancing security, usability, and scalability in diverse network environments.