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Identifier

000466253

Title

Decentralized identity management and access control based on Blockchain technologies

Alternative Title

Αποκεντρωμένη διαχείριση ταυτοτήτων και έλεγχος πρόσβασης με βάση τεχνολογίες Blockchain

Author

Πλευρίδη, Ελευθερία Σ.

Thesis advisor

Τσακαλίδης, Παναγιώτης

Reviewer

Φραγκιαδάκης, Αλέξανδρος
Τσαγκατάκης, Γρηγόριος

Abstract

The advancement of AI and IoT technologies has underscored the importance of personal data protection, given the exponential increase in data volume. Traditional centralized data management systems are increasingly challenged to meet evolving security demands, often hampered by a single point of failure that presents significant risks. In contrast, distributed ledger technologies, such as blockchain, propose a novel approach with their decentralized structure and inherent resistance to tampering, offering a promising avenue for enhancing data security. This thesis explores the potential of blockchain technology to enhance security mechanisms within existing environments. Blockchain’s distinct architecture provides key advantages over traditional systems, especially in enhancing security without relying on a centralized authority. This is demonstrated through the development of a prototype system on the Hyperledger Fabric Blockchain, which introduces an innovative method for securing personal sensitive information. This system seamlessly integrates with the OAuth 2.0 framework, employing blockchain-based tokens and smart contracts for robust identity management and access control. It further establishes a Policy Decision Point and a Policy Enforcement Point, ensuring transparent and automated policy enforcement. It is also complemented by a user-friendly RESTful API, illustrating the blockchain’s capability to manage user identities and permissions effectively. The insights from this research suggest a viable alternative to conventional data management systems, contributing to a deeper understanding of the constantly evolving security landscape. Through this investigation, the thesis aims to pave the way for the development of more secure, scalable solutions that can effectively address upcoming challenges.

Language

English

Subject

Database

Decentralization

Αποκέντρωση

Βάση δεδομένων

Issue date

2024-07-26

Collection

School/Department--School of Sciences and Engineering--Department of Computer Science--Post-graduate theses

Type of Work--Post-graduate theses