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User Interface of Decentralized National Elections
Malínek, Libor ; Malinka, Kamil (referee) ; Stančíková, Ivana (advisor)
The thesis describes the development of a decentralized application and user interface for the voting protocol in the Rust language. The main subject of work was to create an application that is easy to control by the user and at the same time meets the security elements according to the voting protocol. The result of the work is a decentralized application that meets the requirements of the voting protocol and its user interface, which was modified according to user feedback. From a theoretical point of view, the work deals with decentralized applications and the principle of their operation. The thesis also describes the Rust language and its web frameworks.
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Implementation of Blockchain technology
Dzurdzíková, Kristína ; Koch, Miloš (referee) ; Novák, Lukáš (advisor)
This diploma thesis deals with the creation of a design for the utilization of blockchain technology in a corporate environment. The main goal of this work is to create a proposal for a business process and its implementation in a specific blockchain platform. The analysis of the current state of the process describes current process and company’s requirements for the functionality of new technology. In the design part of the work, I compared specific blockchain platforms. As a result of this part I chose the most suitable solution for the implementation of my proposal. This chapter further includes the design of a methodology for verifying whether the process is suitable for the implementation of a blockchain technology or not. Moreover, it describes how to proceed when choosing a suitable solution and highlights its key factors.
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Scalable 1-out-of-k Blockchain-Based Voting with Privacy of Votes
Stančíková, Ivana ; Očenášek, Pavel (referee) ; Homoliak, Ivan (advisor)
The main subject of this work is the assessment of electronic voting systems with regard to their required and achieved properties. The goal of this project is designing an electronic voting protocol that satisfies the requirements for privacy protection while also being scalable and fault-tolerant. Existing protocols are examined and compared according to their properties. The design proposed in this work uses smart contracts on blockchain and combines the approaches from the examined solutions. Scalability is achieved by dividing the process of voting between several smart contracts. Each of these contracts carries out the voting in small scale with only a subset of voters and the partial results are then aggregated. The problem of finding a suitable platform for implementation of the proposed protocol is also addressed in this work.
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Utilization of Blockchain Technology in the Area of Mechanical Engineering
Džupa, Oliver ; Perešíni, Martin (referee) ; Tamaškovič, Marek (advisor)
Táto bakalárska práca sa zameriava na využitie blockchain technológie v oblasti strojárstva. Prvá časť práce je venovaná rešerši a zoznámeniu sa s blockchain technológiou a smart contractami. V druhej časti nájdeme zhrnutie využití tejto technológie v strojárenských, ale aj mimo strojárenských oblastiach a identifikuje jej prednosti. Tretia časť je upriamená na koncepčné využitia blockchainu v strojárstve a ich porovnanie s centralizovanými riešeniami.
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User Interface of Decentralized National Elections
Malínek, Libor ; Malinka, Kamil (referee) ; Stančíková, Ivana (advisor)
The thesis describes the development of a decentralized application and user interface for the voting protocol in the Rust language. The main subject of work was to create an application that is easy to control by the user and at the same time meets the security elements according to the voting protocol. The result of the work is a decentralized application that meets the requirements of the voting protocol and its user interface, which was modified according to user feedback. From a theoretical point of view, the work deals with decentralized applications and the principle of their operation. The thesis also describes the Rust language and its web frameworks.
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Využití technologie blockchain pro výpůjční systémy
Janečka, Martin
This thesis focuses on blockchain technology. It provides a systematic literature review that explores the use of blockchain in rental systems. As part of this thesis, several projects and solutions were analyzed. Based on the review, the thesis also contains the design and implementation of a proof-of concept blockchain solution of a rental system.
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Centralized Cryptocurrency Exchange with Trusted Computing
Sasák, Tomáš ; Očenášek, Pavel (referee) ; Homoliak, Ivan (advisor)
Táto práca sa zaoberá návrhom, implementáciou a analýzou centralizovanej zmenárne kryptomien, ktorá pracuje na platforme trusted computing. Aktuálne centralizované zmenárne fungujú na základe plnej dôvery používateľa v operátorov zmenárne. Na opačnej strane, decentralizované zmenárne využívajú jeden blockchain a tým sú limitované iba na mince na danom blockchaine. Použitím trusted computing platformy Intel SGX je možné kód zverejniť (open source) a zákazník si dokáže overiť pomocou SGX atestácie (remote attestation) že tento kód beží na platforme zmenárne. Kombináciou so smart contract platformou na verejnom blockchaine zmenáreň dosahuje odolnosť voči nejednoznačnosti a vytvára lepšiu vrstvu bezpečnosti a transparentnosti pre používateľa. Zmenáreň bola implementovaná ako proof-of-concept pomocou programovacieho jazyka Go, za použitím frameworku EGo pre tvorbu SGX enkláv. Pre ukladanie dát bola použitá databáza PebbleDB a relačná databáza PostgreSQL. Smart contract zmenárne bol implementovaný v jazyku Solidity a nasadený na Ethereum. Implementácia je schopná vyhodnotiť približne 35 vkladov mincí za sekundu a 23 ponúk na výmenu mincí za sekundu. Aktualizácia poslednej verzie ledgeru na kontrakte stojí približne 0.00255 ETH, pri tendencií aktualizácie každú minútu deň behu zmenárne stojí približne 3.6742 ETH.
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Decentralized Application for Question/Answer Session Based on Blockchain
Čuhanič, Jakub ; Očenášek, Pavel (referee) ; Homoliak, Ivan (advisor)
This work focuses on creating a decentralized mobile application that offers a Q&A section. The problem of transparency process of the Q&A section, question censorship and spamming is solved by using blockchain technology and linking it to an identity management system. The resulting decentralized applications are the solution to all these problems. Their use can be anywhere where Q&A space is needed, especially in public media or on the Internet. Thanks to all the features of the applications resulting from the blockchain, a state should be achieved in which session moderators will not be able to manipulate or censor users and their questions.
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User Interface of Decentralized National Elections
Malínek, Libor ; Malinka, Kamil (referee) ; Stančíková, Ivana (advisor)
The thesis describes the development of a decentralized application and user interface for the voting protocol in the Rust language. The main subject of work was to create an application that is easy to control by the user and at the same time meets the security elements according to the voting protocol. The result of the work is a decentralized application that meets the requirements of the voting protocol and its user interface, which was modified according to user feedback. From a theoretical point of view, the work deals with decentralized applications and the principle of their operation. The thesis also describes the Rust language and its web frameworks.
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Utilization of Blockchain Technology in the Area of Mechanical Engineering
Džupa, Oliver ; Perešíni, Martin (referee) ; Tamaškovič, Marek (advisor)
Táto bakalárska práca sa zameriava na využitie blockchain technológie v oblasti strojárstva. Prvá časť práce je venovaná rešerši a zoznámeniu sa s blockchain technológiou a smart contractami. V druhej časti nájdeme zhrnutie využití tejto technológie v strojárenských, ale aj mimo strojárenských oblastiach a identifikuje jej prednosti. Tretia časť je upriamená na koncepčné využitia blockchainu v strojárstve a ich porovnanie s centralizovanými riešeniami.
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