Decentralized Blockchain Identity Management for IoT Objects
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Solution Overview
Problem
Existing identity management and access solutions for IoT objects are centralized, which violates GDPR regulations and lacks scalability, security, and automation for managing object identities and access to digital services.
Innovation Solution
A decentralized communication process using a blockchain database for secure key and identity management, allowing objects to self-enroll and manage their identities, transfer ownership, and update attributes securely and autonomously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If centralized identity management solutions are used, then security control and management capability are improved, but GDPR compliance and data privacy protection deteriorate
Solution Approach 1:
The centralized identity management system is segmented into a decentralized blockchain network where identity data is distributed across multiple nodes. Each participant maintains a copy of the identity registry, eliminating the single point of control and storage that violates GDPR. The blockchain structure divides the centralized authority into distributed peer-to-peer validation, ensuring no single entity controls all personal data.
Solution Approach 2:
Personal data and identity information are extracted from centralized corporate servers and placed into the decentralized blockchain network. This extraction removes sensitive data from vulnerable centralized storage, distributing it across the blockchain while maintaining security through cryptographic hashing and distributed consensus mechanisms that comply with GDPR requirements.
2Reliability
If centralized identity management solutions are used, then security control is improved, but scalability and automation capability deteriorate
Solution Approach 1:
The blockchain-based identity management system enables self-service enrollment and authentication. Objects can automatically register themselves on the blockchain network without manual intervention from centralized administrators. The system performs self-verification through cryptographic proofs and automated consensus mechanisms, eliminating bottlenecks and enabling horizontal scaling as more objects join the network.
Solution Approach 2:
The blockchain identity management system serves multiple functions simultaneously: enrollment, authentication, authorization, ownership transfer, and attribute management. This universal platform handles diverse identity management tasks across different objects and services without requiring separate centralized systems, improving scalability and reducing operational complexity.
3Reliability
If centralized identity management solutions are used, then management capability is improved, but automation and self-enrollment capability deteriorate
Solution Approach 1:
Objects automatically enroll themselves on the blockchain network by generating cryptographic key pairs and publishing their public keys to the distributed ledger. The system automates identity verification through smart contracts that execute predefined enrollment rules, eliminating the need for manual registration and centralized approval processes while maintaining secure management oversight.
Solution Approach 2:
The blockchain system provides automated feedback mechanisms where objects receive immediate confirmation of their enrollment status and identity attributes. Smart contracts automatically validate enrollment requests and provide real-time feedback on authentication outcomes, enabling objects to self-correct and self-manage their identities without human intervention while maintaining audit trails for accountability.
Data Source
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AI summary
The present invention relates to a communication method for the secure management of keys and identities of an object manufactured by a manufacturer possessing a manufacturer key pair (Ksman, Kpman) and a client possessing a client key pair (Ksclient, Kpclient), characterized in that the management is at least partially carried out on a decentralized blockchain database, and that the method comprises the following steps: a) Generation by the manufacturer of a manufacturing key pair (Ksfab, Kpfab). b) Publication and recording in the blockchain of the decentralized identifier (DID) of the object and preferably of the diversifier (DIV) used to obtain the public key Kpfab of the object: DID-DIV association.And, when a Customer buys the object from said Manufacturer, the process includes the following initialization steps: c) Provision by the Manufacturer of the object, the object identifier DID, and the manufacturing public key Kpfab to the customer d) Update of the blockchain And, when the object is turned on for the first time, the object enrolls itself according to the following steps: e) Generation of a usage key pair (Ksutil, Kputil) f) Self-enrollment using the manufacturing key pair g) Replacement in the blockchain of the manufacturing public key associated with the object's DID by the usage public key associated with the object's DID.