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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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Forensic Analysis in Linux OS
Beneš, Martin ; Rychlý, Marek (referee) ; Očenášek, Pavel (advisor)
This thesis deals with possibilities of forensic analysis on Linux operating system investigation. Forensic investigation is performed on test installation of Xubuntu using BackTrack distribution and tools included on it. The thesis is divided into chapters, starting with operating system Linux basics, continuing with requirements for investigator and his equipment to tools used for analysis. All discussed tools are available for free, their size vary from simple and small tools to complex frameworks. Theoretical knowledge is applied to real system and usage of tools is shown. This thesis ends with forensic report, which summarizes all findings gathered during investigation.
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Obtaining digital evidence for criminal proceedings
Sadílek, Martin ; Gřivna, Tomáš (advisor) ; Říha, Jiří (referee)
Obtaining digital evidence for criminal proceedings Abstract The present diploma thesis analyses the criminal law procedural instruments that can be employed by the law enforcement authorities of the Czech Republic in obtaining digital evidence, mainly focusing on Act No. 141/1961 Coll., the Criminal Procedure Code. The first chapter focuses on analysing the digital evidence concept, considering various approaches to its definition. Consecutively, the term is defined for the purposes of the present thesis, and the chapter concludes with a description of the digital footprint attributes. The second chapter addresses international regulations, namely the Convention on Cybercrime, with regard to the obtaining instruments its signatories are obliged to implement in their legislation. Moreover, the chapter also analyses how the Czech Republic has fulfilled its implementation obligations. The focus of the thesis represents the analysis of the national legislation, discussing the individual procedural instruments used by law enforcement agencies and their pitfalls. In particular, the thesis emphasises the description of the identification of operational and location data, especially considering the topic of data retention and the issuance of orders for the identification of operational and location data in the...
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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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Legal framework of computer crime investigation
Rademacherová, Kristina ; Gřivna, Tomáš (advisor) ; Bohuslav, Lukáš (referee)
Master's thesis is focused on computer crime, with an emphasis on the process of investigation. New systematics in Czech computer crime terminology is offered. Within the thesis, cybercrime is perceived as a part of computer crime. Special attention is put on various aspects of criminalistics, as the topic of investigation itself is understood from the point of view of such science. Nevertheless, criminological findings are discussed likewise. Particular emphasis is put on a link between Czech legal regulation and expert literature from the fields of law, criminalistics, criminology and technology. Master's thesis is based on Czech literature, as well as English and French writings, in addition to national and international case law. The text itself is divided into three chapters. First chapter is introducing the issue of computer and cybercrime with selected criminological characteristics, including specifics of offending within the Internet. Second chapter discusses evidence of computer crime, the electronic or digital evidence, from the point of view of criminalistics. Particular problems of digital evidence usage within Czech criminal procedure are revealed. The core of master's thesis is the third chapter. Methodology of computer crime investigation is discussed, as well as selected individual...
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Forenzní analýza mobilních telefonů s OS Android
CHALOUPKA, Jiří
Thesis Forensic analysis of mobile devices running Android is focused on analysis of selected few communication applications running on OS Android, which is currently the most used OS for mobile devices. Main goal of this thesis is to find, analyse and document locations of data that can be potentially used as evidence.
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Legal framework of computer crime investigation
Rademacherová, Kristina ; Gřivna, Tomáš (advisor) ; Bohuslav, Lukáš (referee)
Master's thesis is focused on computer crime, with an emphasis on the process of investigation. New systematics in Czech computer crime terminology is offered. Within the thesis, cybercrime is perceived as a part of computer crime. Special attention is put on various aspects of criminalistics, as the topic of investigation itself is understood from the point of view of such science. Nevertheless, criminological findings are discussed likewise. Particular emphasis is put on a link between Czech legal regulation and expert literature from the fields of law, criminalistics, criminology and technology. Master's thesis is based on Czech literature, as well as English and French writings, in addition to national and international case law. The text itself is divided into three chapters. First chapter is introducing the issue of computer and cybercrime with selected criminological characteristics, including specifics of offending within the Internet. Second chapter discusses evidence of computer crime, the electronic or digital evidence, from the point of view of criminalistics. Particular problems of digital evidence usage within Czech criminal procedure are revealed. The core of master's thesis is the third chapter. Methodology of computer crime investigation is discussed, as well as selected individual...
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Forensic Analysis in Linux OS
Beneš, Martin ; Rychlý, Marek (referee) ; Očenášek, Pavel (advisor)
This thesis deals with possibilities of forensic analysis on Linux operating system investigation. Forensic investigation is performed on test installation of Xubuntu using BackTrack distribution and tools included on it. The thesis is divided into chapters, starting with operating system Linux basics, continuing with requirements for investigator and his equipment to tools used for analysis. All discussed tools are available for free, their size vary from simple and small tools to complex frameworks. Theoretical knowledge is applied to real system and usage of tools is shown. This thesis ends with forensic report, which summarizes all findings gathered during investigation.
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