Blockchain based Privacy-Preserving Software Updates with Proof-of-Delivery for Internet of Things
Yanqi Zhao, Yiming Liu, Yong Yu, Yannan Li

TL;DR
This paper introduces a blockchain-based privacy-preserving protocol for secure IoT device updates, incorporating incentive mechanisms and an outsourced attribute-based signature scheme to address resource constraints and protect user privacy.
Contribution
It proposes a novel privacy-preserving update protocol with an incentive mechanism and a secure outsourced attribute-based signature scheme for resource-limited IoT devices.
Findings
The protocol ensures secure, reliable updates with privacy protection.
The outsourced attribute-based signature scheme is secure and efficient.
Smart contract implementation validates the protocol's practicality.
Abstract
A large number of IoT devices are connected via the Internet. However, most of these IoT devices are generally not perfect-by-design even have security weaknesses or vulnerabilities. Thus, it is essential to update these IoT devices securely, patching their vulnerabilities and protecting the safety of the involved users. Existing studies deliver secure and reliable updates based on blockchain network which serves as the transmission network. However, these approaches could compromise users privacy when updating the IoT devices. In this paper, we propose a new blockchain based privacy-preserving software updates protocol, which delivers secure and reliable updates with an incentive mechanism, as well protects the privacy of involved users. The vendor delivers the updates and it makes a commitment by using a smart contract to provide financial incentive to the transmission nodes who…
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Taxonomy
TopicsBlockchain Technology Applications and Security · Cryptography and Data Security · Privacy-Preserving Technologies in Data
