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Context: Internet of Things
• Huge number of devices with full or limited connectivity to the Internet
• By 2030, around 30 billions of devices will exchange hundred of zettabytes of data
• Massive deployment  more vulnerabilities  need for a universal software update infrastructure
Aymen Boudguiga, Nabil Bouzerna, Louis Granboulan, Alexis Olivereau,
Flavien Quesnel, Anthony Roger and Renaud Sirdey
Towards Better Availability and Accountability for IoT Updates by means of a Blockchain
Contact : nabil.bouzerna@irt-systemx.fr
IRT SystemX Prototype:
• Use of Multichain, a permissioned blockchain
• Use of Bitcoin blockchain for Multichain bootstrap
• Blockchain update infrastructure deployed on VMs
• Devices implemented physically (tens of raspberry pi) or virtually (up to 800 VMs per server)
• PGP keys usage for updates encryption and signature
Idea: why not use a blockchain for updates sharing between manufacturers and their devices?
• Blockchain provides updates availability thanks to its persistence in time, its history provision and its resistance to
Denial of Services attacks
• Blockchain provides updates innocuousness by extending it with dedicated nodes carrying on updates binaries checking
against vulnerabilities and known attacks
• Blockchain stores devices acknowledgments of updates installation
Publication at:
• IEEE Security & privacy on the Blockchain 2017 (IEEE S&B 2017) - 29 April 2017
IEEE Security & privacy on the Blockchain 2017 (IEEE S&B 2017) - 29 April 2017
Credit Jack Fazakerley
Credit Jack Fazakerley

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Towards Better Availability and Accountability for IoT Updates by means of a Blockchain

  • 1. 11 Context: Internet of Things • Huge number of devices with full or limited connectivity to the Internet • By 2030, around 30 billions of devices will exchange hundred of zettabytes of data • Massive deployment  more vulnerabilities  need for a universal software update infrastructure Aymen Boudguiga, Nabil Bouzerna, Louis Granboulan, Alexis Olivereau, Flavien Quesnel, Anthony Roger and Renaud Sirdey Towards Better Availability and Accountability for IoT Updates by means of a Blockchain Contact : nabil.bouzerna@irt-systemx.fr IRT SystemX Prototype: • Use of Multichain, a permissioned blockchain • Use of Bitcoin blockchain for Multichain bootstrap • Blockchain update infrastructure deployed on VMs • Devices implemented physically (tens of raspberry pi) or virtually (up to 800 VMs per server) • PGP keys usage for updates encryption and signature Idea: why not use a blockchain for updates sharing between manufacturers and their devices? • Blockchain provides updates availability thanks to its persistence in time, its history provision and its resistance to Denial of Services attacks • Blockchain provides updates innocuousness by extending it with dedicated nodes carrying on updates binaries checking against vulnerabilities and known attacks • Blockchain stores devices acknowledgments of updates installation Publication at: • IEEE Security & privacy on the Blockchain 2017 (IEEE S&B 2017) - 29 April 2017 IEEE Security & privacy on the Blockchain 2017 (IEEE S&B 2017) - 29 April 2017 Credit Jack Fazakerley Credit Jack Fazakerley