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Advanced Filtering of Digital Evidence
Chudáček, Ondřej ; Dzurenda, Petr (referee) ; Malina, Lukáš (advisor)
This thesis focuses on the implementation of advanced filtering of digital evidence stored on an open source cloud storage NextCloud. The contents of the thesis are law analysis regarding the storage of digital evidence in NextCloud, design of NextCloud, homomorphic encryption and its possible usages, attribute based searchable encryption and its usages and implementation of a simple stand-alone filtration client. Experts on digital evidence were asked about the choice of filtration criteria as a part of the thesis. The key feature of the thesis is a description of implementation of filtration inside NextCloud which has been extended to contain five new filtration criteria. The result has been submitted to performance and functional tests.
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Data Backup and Data Storages
Chytková, Markéta ; Kindlová, Dita (referee) ; Kříž, Jiří (advisor)
This bachelor thesis focuses on the problem of data backup in the company FOUL s.r.o., which offers football items. Bachelor thesis consists of three main parts, which are the theoretical basis, the analysis of the current state and the solution design. The output of this thesis is the design of a more efficient solution for data backup.
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Cloud Storage Integration into Web Applications
Studnička, Ondřej ; Rychlý, Marek (referee) ; Burget, Radek (advisor)
The aim of this thesis is to analyze selected cloud storages and their APIs. The practical use is demonstrated in web application that is used for to create dynamic presentation based on Reveal.js framework. The application allows user to save the created presentation to selected cloud storage. Supported storages are Google Drive, Dropbox, Github and Gitlab. The application is implemented using Vue.js. The theoretical part of the thesis focuses on the possibilities of creating web applications according to current trends. The practical part describes the implementation and testing of the created application.
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Sports Manager for iOS
Hort, Jaroslav ; Smrčka, Aleš (referee) ; Hrubý, Martin (advisor)
This work discusses design, implementation, connection, testing and practical use of mobile application for iOS and supporting web application. I have analyzed the effects of music to sport and designed and implemented a fitting mobile application allowing users to collect data from their activities, music players and see the effects of music on them. During design and implementation, I have emphasised usability, expandability and synchronization with cloud storage, for this reason I have created a web application, allowing users to monitor their results captured from mobile anywhere.
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Cloud-Based Data Access Control
Chovanec, Erik ; Malina, Lukáš (referee) ; Hajný, Jan (advisor)
This thesis is dealing with problematic of cloud storage. The goal of this thesis is the implementation of cloud storage, that will be able to provide the required functionality. These functionalities are access control of multiple users, group rights, long-term file archiving, secure data transmission to cloud storage, protection of data integrity and confidentiality during transmission and storage. For achieving this goal, there is an evaluation of suitability using public cloud providers. Based on this evaluation, there was a conclusion, that these services are not suitable for storing highly sensitive data. Next is an evaluation of advantages associated with using software that is licensed under a free or open-source software license. Even though there are high start-up costs on infrastructure and there is a necessity to make a huge effort to run custom infrastructure with cloud storage, it is a much better option. Especially if it will be used for storing sensitive data. The following chapter describes an extensive analysis of existing open-source and free-software solutions. In the final part of this chapter, the application Nextcloud has been selected since it provides the most of required functionalities. The thesis also contains an installation of Nextcloud and shows its main functions. There are basic load tests, which are telling us about the efficiency of successfully dealing with parallel requests. In the last section of this thesis, we are dealing with the implementation of missing functionality in Nextcloud. This functionality is necessary to achieve our goal, which is long term archiving of files. This term means functionality that will enable the possibility to archive files with evidence about preservation integrity and confidentiality of archived files during a long period of their existence. This part of the thesis contains a theoretical design that aims to accomplish this goal. Description of the implementation follows after theoretical design. This functionality is implemented in form of a dedicated system. Archiving of files is triggered by a modified application, used in the Nextcloud server. This process will create a copy of the file to be archived on a separate hard drive. It will obtain evidence about integrity when storing the file and it will strengthen this evidence by obtaining a new one in regular periods. This happens on yearly basis. The quality of cryptographic protocols can degrade after a long period. This concept is trying to prevent this phenomenon.
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Data Backup and Data Storages
Šťáva, Adam ; Řehák, Ivo (referee) ; Kříž, Jiří (advisor)
This bachelor’s thesis focuses on data backup and data storages. Based on the conducted analysis of the current state and the requirements of the company, a proposal for a solution of company data backup system is created.
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Analysis of cloud storage market
Coufal, Pavel ; Matuštík, Ondřej (advisor) ; Vencovský, Filip (referee)
The first part of the bachelor´s thesis is about cloud computing. It describes general principles, characteristics, models, strengths and weaknesses. The second part focuses on cloud storage services. The main objective of thesis is the cloud storage market´s analysis carried out in the form of comparison between chosen cloud storage providers, based on multi-criterial decision making. The comparison is based on appropriately categorized criteria. Objective of theoretical part is to define cloud computing and its division, describe weaknesses, strengths and pricing models. The contribution of this work is analysis processing, which can serve as a guideline for what to choose or as a model for creating other comparisons.
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