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Software for data hiding in image files
Morkus, Filip ; Říha, Kamil (referee) ; Burda, Karel (advisor)
In my master's thesis I start fromthedescriptionofthebasics and thebeginningsofsteganography, itsmethods and purposes. Detaileddescriptionof BMP fileswithhidden data follows. A filestructureisanalysedintothesmallestdetails to avoiddamagingfilewhilehiding. At thesametime to make profit oftheinformationincluded in a fileheader in the most effectiveway. Anotheraimwas to explain a principalofsteganographicalmethoditself, usedforhiding data into BMP file. Based on these findings, a programmeconceptwasdesigned and consequentlythatprogrammewas made. Itcarriesoutthehiding and revealing data intothe image files. Directionsfor use are made to thisprogramme and thereisalso a demo ofthefeaturesdescribingeach step. At the end ofmymaster's thesis anattentionispaid to thoseinfluencesthatcanbelimitingforthismethod. Exceeding these limitswouldlead to breakingthesteganographicalmethod, whichmeansrevealingthehidden data.
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The Hidden Resources Detector for GNU/Linux
Nečas, Radek ; Rogalewicz, Adam (referee) ; Procházka, Boris (advisor)
The main goal of this thesis was to detect hide resources in GNU/Linux operating systems and analyse tools so called rootkits, which are used to hide system resources. This thesis is devided into two parts, theoretical and practical one. Theoretic part focusses on resource managment, representation, privilege levels and system calls. Practical part covers design and implementation of an abstract detector. Each new detection method is implemented as a plugin. Some of those methods are realized as linux kernel modules. The usability of the detector is compared against real rootkits.
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Application for Controlled Access to Remote Documents for GNU/Linux
Bernard, Jan ; Burget, Radek (referee) ; Rychlý, Marek (advisor)
The aim of this thesis is synchronization and life cycle of files downloaded to user's computer from validated data storage. Based on market analysis there is large selection of applications in market but there are relatively large differences along them. Application was designed and implemented for GNU/Linux according to requirements and given validated data storage communication. The application was tested on two selected Linux distributions with Mock Server represententing remote storage.
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Big Block File System
Rajman, Jakub ; Lampa, Petr (referee) ; Čejka, Rudolf (advisor)
Master's thesis treats of implementation of big block file system for FreeBSD operating system. The introduction of this document is dedicated to theoretically analysis, which is oriented on history, sense and usage of file systems. Next chapter describes the architecture of UFS/FFS file system. Implementation part starts with introducing design of new file system, which was isnpired by MSDOSFS file system. Last part of this thesis presents implementation of file system with great emphasis on problems, which can happen during programming.
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The recorder ensemble ´´Třeboňští pištci´´
DOLEŽALOVÁ, Lenka
The topic of this bachelor's thesis is Třeboňští pištci. Originally a children's recorder art ensemble which was founded in 1974 and is still performing. The thesis deals with the history and development of the art ensemble, the personalities who influenced it the most and it´s also about the ensemble instrumental composition. The thesis deals with the ensemble's concert and recording activities as well. Attached are photocopies of the ensemble members and their interviews.
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