Digitalni identitet temeljen na tehnologiji ulančanih blokova

master's thesis

• Title (english): Digital Identity Based on Blockchain Technology
• Author: Leo Li
• Mentor: Igor Čavrak (mentor)
• Committee member: Igor Čavrak (član povjerenstva)
• Committee member: Danko Basch (član povjerenstva)
• Committee member: Ivana Bosnić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2023-07-06, Croatia

Abstract

U svojoj osnovi, blockchain tehnologija je decentralizirani sustav čuvanja zapisa koji omogućuje sigurno pohranjivanje podataka kroz složene kriptografske metode. Kroz rad je opisano kako blockchain tehnologija djeluje te što su njeni ključni elementi, uključujući blokove, račune, transakcije, konsenzus algoritme i pametne ugovore. Opisano je kako se blockchain može koristiti za izgradnju sustava za upravljanje digitalnim identitetom. Također opisan je SSI model te njegova važnost u digitalnom identitet. Korisnici mogu pružiti verificirane informacije o sebi bez otkrivanja svih svojih podataka, što pruža visoku razinu sigurnosti i privatnosti.
Nadalje, rad se bavi integracijom Web2 i Web3 tehnologija, s posebnim osvrtom na prednosti i mane takve integracije. Web2 se odnosi na trenutno dominantni model interneta, koji se temelji na centraliziranim serverima i gdje su korisnici obično konzumenti sadržaja. S druge strane, Web3 je vizija budućeg interneta koja koristi blockchain tehnologiju za stvaranje decentraliziranih aplikacija.
Završni dio rada je posvećen praktičnoj primjeni teorije kroz izgradnju Express aplikacije koja komunicira s pametnim ugovorom na Ethereum mreži. Aplikacija pruža osnovne funkcionalnosti sustava upravljanja digitalnim identitetom, demonstrirajući pritom konkretne koristi i mogućnosti primjene blockchain tehnologije u stvarnom svijetu. Ovaj rad nadamo se pruža čitateljima dublje razumijevanje o mogućnostima i izazovima koje blockchain tehnologija nudi u kontekstu digitalnog identiteta.

Abstract (english)

At its core, blockchain technology is a decentralized record keeping system that enables secure data storage through complex cryptographic methods. The thesis describes how blockchain technology works and what its key elements are, including blocks, accounts, transactions, consensus algorithms and smart contracts. It describes how blockchain can be used to build a digital identity management system. The SSI model and its importance in digital identity are also described. Users can provide verified information about themselves without revealing all their information, which provides a high level of security and privacy.
Furthermore, the paper deals with the integration of Web2 and Web3 technologies, with a special focus on the advantages and disadvantages of such integration. Web2 refers to the currently dominant model of the Internet, which is based on centralized servers and where users are usually consumers of content. On the other hand, Web3 is a vision of the future Internet that uses blockchain technology to create decentralized applications.
The final part of the paper is devoted to the practical application of the theory through the construction of an Express application that communicates with a smart contract on the Ethereum network. The application provides the basic functionalities of a digital identity management system, while demonstrating the concrete benefits and possibilities of applying blockchain technology in the real world. This thesis hopefully provides readers with a deeper understanding of the opportunities and challenges that blockchain technology offers in the context of digital identity.

• Keywords: tehnologija ulančanih blokova; Ethereum; pametni ugovor; digitalni identitet; samostalni suvereni identitet; Web2; Web3
• Keywords (english): blockchain; Ethereum; smart contract; digital identity; self-sovereign identities; Web2; Web3
• Language: croatian
• URN:NBN: urn:nbn:hr:168:687492
• Study programme: Title: Computing; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka računarstva (magistar/magistra inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-10-11 09:32:49