This thesis deals with cryptocurrencies and the underlying principles they are based on. It describes the blockchain technology and explores various cryptocurrencies that utilize it with the focus on their similarities and differences. The next part analyzes InsightAPI, the existing tool for real-time Bitcoin blockchain exploration. It then describes the proposed solution for the Ethereum blockchain explorer, highlights the implementation details, and shows results of its testing. The created tool allows the user to quickly gather information about desired blocks, users, and transactions of the Ethereum blockchain.

This diploma thesis is focused on the description and implementation of the user interface for the analysis of local DNA structures as a web application in the Vue.js framework. The local structure can be described as an alternative DNA structure which arises in a specific DNA sequence that occurs in important regions of the genome. The first part of the thesis is theoretical and examines the field of DNA research and a description of selected technologies. The second part deals with the implementation and testing of the user interface on specific DNA sequences.

Táto diplomová práca sa zaoberá technickou realizáciou WBAN zariadenia, ktoré je schopné súbežne komunikovať prostredníctvom dvoch bezdrôtových komunikačných protokolov. Rešerš dostupných riešení je dostupná s hodnotením jednotlivých produktov podľa vopred stanovených kritérií. Návrh z hľadiska software obsahuje tvorbu vlastného BLE servisu, konfiguráciu Timeslot API a periférií často využívaných vo WBAN zariadeniach. Výroba dosiek plošných spojov pre zariadenie a dedikovaný ovládač zahŕňa vlastnú anténu, nabíjací obvod batérie a nRF52810 čip. Testovanie prototypov je zhrnuté v poslednej kapitole spoločne s experimentálnym meraním útlmu živočíšneho tkaniva.

In this work we present the design and implementation of a platform for automated measurement of the use of JavaScript APIs in a web browser. This platform is based on OpenWPM, which is used to instrument the web browser. In our architecture, the browser is extended with a modified Web API Manager extension, which allows to capture calls to JavaScript methods and log information about these calls. The platform was used to perform measurements on a 10,000 websites. From the analysis of the data obtained by the measurement, we found that the most used APIs over measured websites are APIs specified in HTML and DOM standards, High Resolution Time API and Web Cryptography API. Within the APIs that were implemented in Mozilla Firefox after 2016, we identified the Intersection Observer API, Background Tasks API and Resize Observer API as the most frequently used.

The master’s thesis deals with the web mining, information sources, unattended access methods to these sources, summary of available methods and tools. Web data mining is a very useful tool for required information acquiring, which is used for further processing. The work is focused on the proposal of a system, which is created to gather required information from given sources. The master’s thesis consists of three parts, which employ the developed library: API, which is used by programmers, server application for gathering information in time (such an exchange rate for instance) and example of AWT application, which serves for the processing of tables available on the internet.

In this work an interface between network simulator OPNET Modeler and network operations generator IxChariot is described. The goal is to control the generator by data from an OPNET modeler simulation. More accurately the generator is supposed to produce a data flow with desired settings of DSCP field, which is used to support quality of service mechanism. The goal can be achieved by two possible approaches: using IxChariot TCL API or IxChariot C API. Both of these approaches are described and conclusions are made at the end.

This master’s thesis focuses on the issue of measurement of parameters of network traffic of wired and wireless networks. The first part theoretically describes SNMP protocol and application interface API, that form the basis for acquiring and evaluating data. The next section describes known MIKROTIK platform and software solutions for the alternative possibility of implementing a new feature. The last part closely describes the created application. It is a simple information system, whose task is to get information and evaluate it using the known functions. The conclusion of the work is a few tests of this application, assessing the real operation.

Tekniker för att hämta e-post har sedan länge varit svåra att hantera på grund av brist på en tydlig standard. E-post kan variera i vilka headers som följer med och vilken storlek som är tillåten. De kan även vara skillnader på hur mailet är kodat vilket kan bidra till att mailet inte lyckas parsas på rätt sätt. Äldre tekniker som IMAP4 och POP3 förlitar sig på en bristande autentiseringsprocess som inte är önskvärd. Projektet kommer därför studera de nyare teknikerna Outlook Mail REST API och Gmail API för att jämföra dem mot IMAP4. Syftet är att på ett säkrare och effektivare sätt kunna läsa epost och integrera dem med ett ärendehanteringssystem. e-postöverföringar ska kunna schemaläggas med specifikationer som sparas i en konfigurationsfil. För att uppnå syftet implementerades tre prototyper som använde varsin teknik för att läsa e-post. För att jämföra teknikerna på prestanda gjordes tidsmätningar. En jämförelse på säkerhet genomfördes genom att sätta upp den information som måste sparas i konfigurationsfilen. En jämförelse på funktionalitet genomfördes genom att jämföra en lista på funktioner som bestämdes genom en intervju och därefter se om dem finns på de tre olika teknikerna. Resultatet blev att Outlook Mail API var överlägset bäst när det kommer till prestanda. Den stora anledningen varför var att Outlook API hämtar e-post i plain-text vilket leder till en betydligt kortare tid för att parsa e-post. Gmail API var snabbare än IMAP4 mest troligt för att den använder protokollet http för att hämta epost. Både IMAP4 och Gmail API hämtar e-post i form av MIME-meddelanden vilket ledde till en ungefärligt lika lång tid för parsning. Funktionaliteten för teknikerna var densamma förutom några få skillnader. Outlook API har funktionalitet för att hämta epost i plain-text medan de andra inte har det. Gmail API har inte möjlighet att sortera inkommande e-post. Slutligen kom projektet fram till att Gmail API och Outlook Mail REST API var säkrare än IMAP4 på grund av den modernare autentiseringsprocessen som inte hanterar några lösenord. Både Outlook och Gmail använder Oauth2 som autentiseringsprotokoll. Utifrån resultatet dras slutsatsen att Outlook Mail REST API är den lämpligaste lösningen baserat på dess säkerhet och prestanda. / The process to fetch email has for a long time been a difficult task because of the amount of different standards in email formats. Email can vary in different headers, format, max size and more based on which email supplier sends the mail. Older methods for fetching email as IMAP4 and POP3 still relies upon weak authentication processes. This project will therefore study the new technologies Gmail API and Outlook Mail REST API and compare these to IMAP4. The purpose of this study is to find a more effective and secure way of transferring emails from an email server to the system named Easit GO. Email transfers should be able to be scheduled in such a way that it is specified in a configuration file. To accomplish this three prototypes was implemented. Every prototype used on of the technologies to read email. To compare these prototypes there was a performance test through time measurements. To compare functionality there was a list setup of fixed functions showing which technologies that had support for that specific function. Security was based on the sensitive information that was stored in the configuration file. The result was that Outlook Mail REST API clearly beat the others on performance. This was because of outlooks ability of reading email in plain-text which leads to a substantially shorter parsing time. All of the technologies had similar functionality except for a few things. Outlook API had the possibility of reading email in plain-text which resulted in better performance. Gmail API did not have functionality to sort incoming email on oldest first. The study concluded that Outlook API and Gmail API were more secure than IMAP4 because of no passwords were saved or even used in the prototype. Both Outlook and Gmail used the authentication protocol Oauth2 which is more secure than IMAP4s Basic Authentication. The conclusion points to Outlook Mail REST API being the most suitable solution based on its performance and more modern authentication.

The goal of this thesis is integration of a new data source into SmartPEF system. SmartPEF is the application of the concept of smart cities to the Faculty of Business and Economics of the Mendel University in Brno. As a new data source, a user activity monitoring system is being developed and implemented in order to collect statistical data about the traffic and utilization of university computers.

This diploma thesis is focused on the implementation of the interactive educational application based on gamification which allows students to acquire new knowledge using new and modern way of learning. The thesis deals with analysis of mobile and web educational applications focused on gamification. Based on the analysis outcome, the functionality of the application is designed and implemented. This thesis also describes functionality for student and admin interfaces and further focuses on REST API. The implemented application expands teaching methods of the Institute of Informatics at the Mendel University in Brno. Further development of the web application is proposed within the conclusion part of this diploma thesis.