The Blog (Posts by Pierre-Antoine Brameret)

Securing IIoT communications using OPC UA PubSub and Trusted Platform Modules

Olivier Gilles, Daniel Gracia-Perez, Pierre-Antoine Brameret, Vincent Lacroix — Thu, 05 Jan 2023 11:23:15 GMT

In the Industry 4.0 context, data are a valuable asset that must be protected. OPC UA PubSub enables secure and interoperable solutions, but authentication of IIoT devices remains a sensitive issue. This article presents a novel approach based on open source software, using a Trusted Platform Module to protect secrets on devices, and evaluate the security level on a predictive maintenance use case.

Publish-Subscribe Pattern 2/2

Pierre-Antoine Brameret — Mon, 27 Jan 2020 08:33:00 GMT

This post is the second in the series. The previous one described the Publish/Subscribe pattern and analysed MQTT, MQTT-SN and DDS specifications. This article will continue the analysis of other protocols including OPC-UA PubSub, according to the characteristics highlighted in previous post.

Publish-Subscribe Pattern 1/2

Pierre-Antoine Brameret — Mon, 27 Jan 2020 08:30:00 GMT

This series of two posts presents an overview of the Publish/Subscribe pattern and analyses the features of some Pub/Sub implementations.

What is Pub/Sub? 1

The publish subscribe pattern is a messaging pattern, where publishers publish messages to topics and subscribers subscribe to topics to receive messages. In this pattern, publishers and subscribers are not directly connected to each other (loosely coupling).

Mininet and Performance Evaluation

Pierre-Antoine Brameret — Tue, 14 Jan 2020 13:10:28 GMT

Mininet is a network emulator. With Mininet, it is possible to create virtual hosts linked through virtual switches and links. Programs are executed on a single machine, but on different virtual hosts. This creates a network test bench which emulates complex (possibly corrupted or degraded) topologies.