Blockchain-based IoT security solution – A novel approach

Summary

As billions of connected devices come online across industrial, enterprise and consumer settings, the centralized architecture underpinning most IoT systems is becoming a growing liability. A blockchain-based security approach for the Internet of Things takes shape around a decentralized credibility verification model that could reduce the industry's exposure to device spoofing and data tampering.

The technical architecture behind the proposal shows how device gateways, unique device identification, private keys and a distributed ledger work together to verify the authenticity of devices and the data they transmit, without relying on a single centralized authority. The credibility verification process a device undergoes when joining a network also comes into focus, along with what makes the underlying blockchain trustworthy enough to support it.

Practical deployment challenges follow, including the target customers most likely to adopt such a solution — communication service providers, systems integrators and large enterprises — along with the last-mile hurdles around device certification and the caveats that come with applying blockchain at IoT scale, including intermittent device connectivity and the role layer-2 solutions play in keeping most transactions off the main chain for faster settlement.

Can a decentralized trust model solve IoT security challenges that centralized architectures were never built to handle?