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undergraduate thesis
VERIFIKACIJA IZDANIH DIPLOMA NA BLOCKCHAINU
Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2019. urn:nbn:hr:200:724616
Perica, Marko
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Software Engineering
Chair of Visual Computing

Institutional repository: Faculty of Electrical Engineering, Computer Science and Information Technology Osijek

Cite this document

Perica, M. (2019). VERIFIKACIJA IZDANIH DIPLOMA NA BLOCKCHAINU (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:724616

Perica, Marko. "VERIFIKACIJA IZDANIH DIPLOMA NA BLOCKCHAINU." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2019. https://urn.nsk.hr/urn:nbn:hr:200:724616

Perica, Marko. "VERIFIKACIJA IZDANIH DIPLOMA NA BLOCKCHAINU." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2019. https://urn.nsk.hr/urn:nbn:hr:200:724616

Perica, M. (2019). 'VERIFIKACIJA IZDANIH DIPLOMA NA BLOCKCHAINU', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 15 May 2024, https://urn.nsk.hr/urn:nbn:hr:200:724616

Perica M. VERIFIKACIJA IZDANIH DIPLOMA NA BLOCKCHAINU [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2019 [cited 2024 May 15] Available at: https://urn.nsk.hr/urn:nbn:hr:200:724616

M. Perica, "VERIFIKACIJA IZDANIH DIPLOMA NA BLOCKCHAINU", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:200:724616

Metadata
TitleVERIFIKACIJA IZDANIH DIPLOMA NA BLOCKCHAINU
Title (english)VERIFICATION OF GRADUATES ISSUED ON BLOCKCHAINU
AuthorMarko Perica
MentorMirko Kohler (mentor)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
(Department of Software Engineering)
(Chair of Visual Computing)
Osijek
Defense date and country2019-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Computing
Data Processing
Abstract
U ovom završnom radu najprije je prikazana teorijska analiza tehnologija na kojima počiva lanac blokova. Teorijski se obrađuju hashing, kriptografija javnog ključa, peer-to-peer mreže, Merkle stabla i neke od konsenzusnih metoda. Zatim je ukratko predstavljena najpopularnija javna decentralizirana platforma za stvaranje tzv. „pametnih ugovora“ – Ethereum i jezik na kojemu se ti ugovori pišu – Solidity. Zbog činjenice da je lanac blokova nepromjenjiv i troška transakcija na Eteheurum-ovom Mainnet-u za testno izvođenje napisanih programa preporučuje se korištenje nekog od dostupnih test-neta koji su predstavljeni ovdje. U teoriji, ne postoji granica veličinu bloka u Ethereum-u, ali tehnologija lanca blokova nije namijenjena za pohranu većih datoteka jer je to jako skupo. Međutim, blockchain se može koristiti za pohranu hasheva podataka koji se nalaze negdje drugdje – u našem slučaju to je IPFS. Korištenjem IPFS-a možemo osigurati dostupnost podataka bez visokog troška što je demonstrirano u ovom završnom radu. Sinergijom ovih dvaju tehnologija i alata koji njima barataju osigurano je relativno jednostavno i jeftino rješenje za verifikaciju diploma koje se kasnije može nadograditi.
Abstract (english)
In this paper firstly we introduced and theoretically analyzed what forms a basis for blockchain technology. We elaborated on hashing, public-key cryptography, peer-to-peer networks, Merkle trees and some of the consensus methods. Subsequently, the most popular decentralized platform for „smart contracts“ – Ethereum and the language in which they are written is introduced. Because of the fact that blockchains are immutable and the cost of transactions on Ethereum's Mainnet it is recommended to use one of the testnets who are also introduced. In theory, there is no limit for a block size in Ethereum, but blockchain technology as it is is not meant to serve as a storage place for large files because that would be very expensive. However, blockchain can be used to store hashes of data that is stored somewhere else – in our case that is IPFS. By using IPFS we can ensure the availability of data without high costs which is demonstrated in this paper. A synergy of these two technologies and tools that work with them we made a relatively simple and cheap solution for verification of diplomas that can later be built upon.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:724616
Study programmeTitle: Undergraduate University Study Programme in Computer Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2019-11-07 12:24:55