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Future@SystemX 2017- Digital Days@Nano-INNOV – Paris Saclay
Fateh Guenab (*) and Nabil Bouzerna (+)
SODA-IIoT4RailTransport: Application to Railway Signalling System to ensure correct configuration through secure updates
(+) nabil.bouzerna@irt-systemx.fr
Railway urban systems are complex interconnected
systems combining heterogeneous components (Control
system based on some hardware and software
components, communication devices and physical plant)
(Right figure).
The correct configuration of signalling system is required to
ensure the security properties of the system. It concerns all
parts of the system (Control system based on execution
platforms, IO modules, servers, databases, communication
material…). It encompasses all hardware configuration
(board version, pinout mapping …), software configuration
(including firmware, OS, drivers, applications, operation
parameters…) and network configuration (firewalls, routers,
gateways …).
In that context, one important maintenance
function for Alstom is to update a coherent
configuration in a secure manner. In this work,
this function is performed by the SODA-IIoT
infrastructure developed within IRT SystemX.
Without loss of generality, railway system (trains,
stations and infrastructures) could be
represented as a set of interconnected
computational nodes (ATC_i, WTC_i, ITC_i) (Left
Figure). Where ATC is onboard train controller,
WTC is train controllers on station and ITC is
infrastructure controllers.
(*) fateh.guenab@transport.alstom.com
The configuration parameters (firmware, OS, drivers, applications, operation parameters…) of these
computational nodes are updated through a blockchain infrastructure (with redundant nodes) and secure
gateways (manage access rights and secure communications). In this manner, the integrity of a new
configuration is ensured and with high availability.
Secured On-the-pouce Decentralized Architecture for the Industrial Internet of Things (SODA-IIoT), co-designed with
IRT SystemX, CEA Tech List and Airbus Innovation Group, features innovative solutions to manage IIoT access rights
management & secure software and firmware updates through Blockchain technology & cryptographic signatures.
Co-designed with Alstom Transport, SODA-IIoT4RailTransport offers a secure way to update the
configuration of the railway signalling system.
The SODA-IIoT4RailTransport demonstrator is built on top of the CHESS platform
(Cybersecurity Hardening Environment for Systems of Systems), an experimental and
technical cybersecurity platform funded by ANSSI to support cybersecurity research effort
at Institute for Technological Research SystemX - Paris-Saclay (EIC & CTI R&D projects).
This platform is part of French Government “Nouvelle France Industrielle”, Cybersecurity
plan, action 8: set up one or more testing and demonstration cybersecurity platforms.

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SODA-IIoT4RailTransport: Application to Railway Signalling System to ensure correct configuration through secure updates

  • 1. 11 Future@SystemX 2017- Digital Days@Nano-INNOV – Paris Saclay Fateh Guenab (*) and Nabil Bouzerna (+) SODA-IIoT4RailTransport: Application to Railway Signalling System to ensure correct configuration through secure updates (+) nabil.bouzerna@irt-systemx.fr Railway urban systems are complex interconnected systems combining heterogeneous components (Control system based on some hardware and software components, communication devices and physical plant) (Right figure). The correct configuration of signalling system is required to ensure the security properties of the system. It concerns all parts of the system (Control system based on execution platforms, IO modules, servers, databases, communication material…). It encompasses all hardware configuration (board version, pinout mapping …), software configuration (including firmware, OS, drivers, applications, operation parameters…) and network configuration (firewalls, routers, gateways …). In that context, one important maintenance function for Alstom is to update a coherent configuration in a secure manner. In this work, this function is performed by the SODA-IIoT infrastructure developed within IRT SystemX. Without loss of generality, railway system (trains, stations and infrastructures) could be represented as a set of interconnected computational nodes (ATC_i, WTC_i, ITC_i) (Left Figure). Where ATC is onboard train controller, WTC is train controllers on station and ITC is infrastructure controllers. (*) fateh.guenab@transport.alstom.com The configuration parameters (firmware, OS, drivers, applications, operation parameters…) of these computational nodes are updated through a blockchain infrastructure (with redundant nodes) and secure gateways (manage access rights and secure communications). In this manner, the integrity of a new configuration is ensured and with high availability. Secured On-the-pouce Decentralized Architecture for the Industrial Internet of Things (SODA-IIoT), co-designed with IRT SystemX, CEA Tech List and Airbus Innovation Group, features innovative solutions to manage IIoT access rights management & secure software and firmware updates through Blockchain technology & cryptographic signatures. Co-designed with Alstom Transport, SODA-IIoT4RailTransport offers a secure way to update the configuration of the railway signalling system. The SODA-IIoT4RailTransport demonstrator is built on top of the CHESS platform (Cybersecurity Hardening Environment for Systems of Systems), an experimental and technical cybersecurity platform funded by ANSSI to support cybersecurity research effort at Institute for Technological Research SystemX - Paris-Saclay (EIC & CTI R&D projects). This platform is part of French Government “Nouvelle France Industrielle”, Cybersecurity plan, action 8: set up one or more testing and demonstration cybersecurity platforms.