Blockchain

master's thesis

• Author: Domina Hozjan
• Mentor: Luka Grubišić (mentor)
• Committee member: Luka Grubišić (predsjednik povjerenstva)
• Committee member: Ljiljana Arambašić (član povjerenstva)
• Committee member: Nenad Antonić (član povjerenstva)
• Committee member: Robert Manger (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Mathematics); Zagreb
• Defense date and country: 2017-02-22, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Mathematics

Abstract

U ovom radu opisana je blockchain tehnologija, kako s tehničkog tako i s praktičnog gledišta. Prvo poglavlje opisuje vrlo važnu funkciju koju koristi blockchain tehnologija, to je SHA-256 kriptografska hash funkcija. Drugo poglavlje daje definiciju blockchain tehnologije, prikazuje strukturu bloka i opisuje blockchain sustav građen prema decentraliziranom modelu ravnopravnih partnera . Uloga kriptografije i različiti algoritmi za postizanje konsenzusa u distribuiranom sustavu objašnjeni su u trećem poglavlju. Četvrto poglavlje daje pregled najvažnijih slučajeva upotrebe kao i aplikacija baziranih na blockchain tehnologiji naglašavajući njihov potencijal za buduću primjenu u raznim industrijama. Predstavljene su najpoznatije kriptovalute i njihove karakteristike. Također je objašnjeno što su to pametni ugovori i način na koji funkcionira blockchaina nove generacije na koji se zapisuju pametni ugovori. U sklopu rada izrađene su dvije jednostavne web aplikacije koje su opisane u zadnjem poglavlju.

Abstract (english)

In this thesis, blockchain technology is introduced both from a technological and functional point of view. First chapter describes a very important function which is used by blockchain technology, that is SHA-256 cryptographic hash function. Second chapter deals with definition of the blockchain and the structure of each block. It also describes decentralized peer-to-peer blockchain network. The role of cryptography and different consensus mechanisms for blockchain technologies are discussed in third chapter. Then in the fourth chapter we present some practical applications of the technology blockchain. In particular, we have concentrated on those applications which are currently identified as showing best promise for being applied in the industry. Cryptocurrencies features and next generation blockchains with smart contracts are explained too. Two simple web application have been developed as a part of this thesis and they are presented in last chapter.

• Keywords: blockchain; SHA-256; algoritmi za postizanje konsenzusa
• Keywords (english): blockchain; SHA-256; consensus algorithms
• Language: croatian
• URN:NBN: urn:nbn:hr:217:145199
• Study programme: Title: Computer Science and Mathematics; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra računarstva i matematike (magistar/magistra računarstva i matematike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-04-25 11:44:01