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Bezpečnostní auditor WWW stránek
Steinhauser, Antonín ; Kruliš, Martin (referee) ; Novotný, Miroslav (advisor)
This work solves the problematics of web pages security primarily from the side of dynamic web application programmers. It describes single mistakes, that programmers perpetrate and declares, how is possible prevent these mistakes and what unpleasant possibilities of abuse these mistakes offer to potential attackers. The main part of the work is the program, which machinely searches majority of those errors. It functions in two phases - in the rst phase it explores a domain or alternatively de ned set of pages and detects potentially vulnerable locations and in the second phase it sends attack queries to these locations and by analysis of its replies detects security vulnerabilities.
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Methods and possibilities of anonymous communication
Tomisová, Martina ; Novotný, Miroslav (referee) ; Beneš, Antonín (advisor)
The thesis discusses communication methods which provide anonymity to their participants. Basic concepts such as the concept of anonymity are explained in the first part of the thesis. Well known and practically used communication methods and their evaluation techniques are described together with suggestions of a few new methods. The thesis covers both methods that can be called as almost purely theoretical, which can be hardly implemented in the real world, and methods that are widely used in the today's networks. Each method is firstly explained and then evaluated from various aspects of security with regards to the confidentiality of the identity of the users to its practicality and feasibility. Both the possibilities of the attackers and the victims are examined. Last parts of the thesis is devoted to the techniques of evaluation of the communication methods. This problem is nontrivial since the methods differ from each other quite much and hence it is hard to find metrics that would match them all. Such a general metric is not invented in the thesis, at least not a computationally simple one. The conclusion of the thesis attempts to summarize the possibilities and limits of anonymous communication and its evaluation.
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Accounting software for OS X
Váša, Kryštof ; Klímek, Jakub (referee) ; Novotný, Miroslav (advisor)
This work implements a tax management application target primarily for the MacOS X platform. It focuses on a user-friendly interface and supports custom invoice printing, printing of income, expense, VAT overviews. It includes modules for invoicing, cataloguing bank statements, has a Cashier module, a modules to keep track of your business trips, storage, it supports both import and export of the records. It is targeted for smaller businesses and tradesmen. It is not meant to be used by professional accountants. The core is written in C++, the UI in Objective-C (framework Cocoa), hence it runs natively on MacOS X.
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Distributed containers
Hraška, Adam ; Novotný, Miroslav (referee) ; Zavoral, Filip (advisor)
Distributed hash tables provide similar functionality to ordinary hash tables but they distribute stored data across a self-organized peer-to-peer network. In this thesis we explore the various challenges DHTs must face and we also examine the algorithms used to overcome them. We focus on key location algorithms as well as the data maintenance strategies. Furthermore, the thesis also includes a flexible and simple-to-use implementation of a DHT. The DHT is based on a set of algorithms which we believe provide good balance between performance and bandwidth usage. The implemented DHT may form the basis of a large-scale decentralized application. However, practical deployment of the DHT on hundreds of nodes and evaluation of the performance of the implemented DHT in such a deployment is outside the scope of this thesis.
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Garbage collection in the C++ environment
Zika, Petr ; Novotný, Miroslav (referee) ; Bednárek, David (advisor)
The goal of the thesis is to design and implement a garbage collector within the environment of the C++ programming language, defined by the International Standard ISO/IEC 14882:2003. Analysis of various aspects of automatic memory management in general and in the C++ programming language in particular is presented. A list of requirements on garbage collection implementation is given. The thesis focuses on solving problems of implementing an incremental tracing garbage collector within the limits imposed by the C++ language. The result of the effort is a working garbage collector.
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Mobility support in Internet and Wireless Network
Novotný, Miroslav ; Peterka, Jiří (referee) ; Janeček, Jan (advisor)
Important part of communication systems is their capability to support mobility of user's devices, eventually of program and data components. This thesis deals with methods of mobility solution in the Internet and Wireless networks. In the chapter relating to the Internet it describes of mobile extensions of IP protocol and methods which use domain names. It summarizes positives and negatives both approaches and suggests a new approach based on distributed hash tables. A part of thesis is also a simulation model of the suggested approach. In the part about Wireless networks it summarizes existing wireless technologies and compares their access to mobility. In the conclusion it states a concept of a full mobile node that uses maximum from the methods discussed above and illustrates the possibilities that the mobility offers.
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Parsing Based on State Grammars
Novotný, Miroslav ; Kocman, Radim (referee) ; Meduna, Alexandr (advisor)
This thesis's main focus is parsing, based on state grammars. The goal is to create a program, that will be able to load the grammar from input file. Based on a loaded grammar, the program will create an LL table and parse an input file using this table. The next goal is to study properties of parsing, based on state grammars, while using a created program as a stand point. Part of the testing will also be grammar structures which are not context-free.
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Development of mobile application for musicians
Novotný, Miroslav ; Pavlíčková, Jarmila (advisor) ; Kutišová, Magda (referee)
The aim of this bachelor's thesis is to design and develop an Android application for musicians. The theoretical part, is conceived as an introduction to the theory of sound. Firstly, I describe the architecture of Android and the individual components that make it up. There are subsequent chapters exploring the sound from its inception, through the process of converting to digital form, to a description of the individual interfaces for the recording and processing from within the environment of an Android system. The practical part, is devoted to designing and developing an application that serves as a tool for practicing playing a musical instrument. The application consists of various features such as: tuner, metronome and an EarTrainer. To understand the component of a tuner it has been necessary to study a theory needed to support the main functionality of calculating the frequency of the recorded audio signal. For this reason, this thesis is also a theoretical introduction to the Fourier transformation. The last part of this thesis is focusing on how the tuner compares with the calculation accuracy of other competitors. Finally, The application was published for the Google Play store.
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SLICE Seismic lithospheric investigation of Central Europe
Akademie věd ČR, Geofyzikální ústav, Praha ; Uličný, David ; Růžek, Bohuslav ; Hubatka, František ; Špaček, Petr ; Švancara, Jan ; Brož, Milan ; Novotný, Miloslav ; Karousová, Olina ; Hrubcová, Pavla ; Špičák, Aleš ; Novotný, Miroslav
Projekt SLICE má za úkol zkoumat hlubinnou stavbu středoevropské oblasti a jeho cílem je přispět k výzkumu stavby zemské kůry a svrchního pláště v oblasti Českého masivu a jeho styku se sousedními tektonickými jednotkami. Pro studium hlubinné stavby je využívána seismická refrakční metoda, kdy se registrují seismické vlny generované uměle vyvolanými odpaly a posléze je zjišťována rychlost šíření seismických vln v různých hloubkách. Tyto údaje pak zprostředkovaně poskytnou informace o strukturních vlastnostech měřeného prostředí až do oblasti svrchního pláště. Je popsáno propojení refrakčních experimentů ALP 2002 a SUDETES 2003 na našem území.
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