A PLS blockchain for IoT applications: protocols and architecture

TL;DR

This paper introduces a permissioned blockchain architecture for IoT networks utilizing a sealed Sequencer and Fog Server with post-quantum protocols, enabling resource-limited IoT devices to securely participate without trusted intermediaries.

Contribution

It presents a novel blockchain protocol suite and architecture tailored for resource-constrained IoT devices, incorporating post-quantum security and content addressable storage.

Findings

Resource-efficient blockchain protocols for IoT devices

Post-quantum security integration in IoT blockchain

Feasibility of direct device participation without trusted intermediaries

Abstract

This paper proposes an architecture and a protocol suite for a permissioned blockchain for a local IoT network. The architecture is based on a sealed Sequencer and a Fog Server running (post-quantum) Guy Fawkes protocols. The blocks of the blockchain are stored in networked Content Addressable Storage alongside any user data and validity proofs. We maintain that a typical IoT device can, despite its resource limitations, use our blockchain protocols directly, without a trusted intermediary. This includes posting and monitoring transactions as well as off-chain (post-quantum) emergency communications without an explicit public key. Keywords: blockchain, Guy Fawkes protocol, post-quantum, HORS-OTS, LoRa, concurrent transmission