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Implementation of Encryption Algorithms in VHDL Language
Kožený, Petr ; Martínek, Tomáš (referee) ; Kořenek, Jan (advisor)
This thesis deals with design and implementation of AES and DES encryption architectures for embedded systems. Architectures are implemented in VHDL language and design for FPGA technology. The proposed implementations are mapped on the Xilinx Spartan 3 technology. Both architectures are applied in simple ECB (Electronic Codebook) scheme with cache memories. A maximum throughput of design DES architecture 370 Mbps is achived with clock frequency of 104 MHz. The throughput of AES architecture at the maximum clock frequency of 118 MHz is 228 Mbps. Compared to software implementations for embedded systems, we achieve significantly higher throughput for both architectures.
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Securing operability system of resources in kind of chemical and technical service in the fire brigade of Pardubice region
KOŽENÝ, Petr
The aim of the diploma thesis is to assess contamination by chemical substances of selected operating premises at the FRS stations of the Pardubice Region. Elevated contamination by dangerous dangerous chemical substances of the mentioned premises can be results of many factors, from technical to organisational ones, and as a final consequence of this, it may influence firefighters´ health negatively. The theoretical part of the thesis presents basic information about the organisation, duties and securing the operability of chemical and technical services material equipment. Furthermore, knowledge of possible risks of contamination of material equipment and about inspections of the chemicals in operating environment are presented. In the survey part, air contamination of 13 selected areas is assessed during everyday operations and once in an intentionally contaminated area. As the measuring procedure in all the selected areas, air sampling through adsorption tube with Tenax sorbent was used. Specifying the chemical substances in the samples is implemented by the means of a thermodesorption equipment and a gas chromatograph with a mass spectrometer. Furthermore, sampling in sample bags with following analysis by the means of infrared spectroscopy is implemented in contaminated areas. There are 42 air sampling in Tenax adsorption tubes and 2 air sampling in sample bags implemented altogether. Numbers of volatile organic substances is identified in the surveyed areas, most of them benzene and toluene. From identified inorganic gases hydrogen sulfide is discovered in one case, which concentration exceeded strongly the hygienic standards set by the Czech legislation. The identified results not only can influence securing the operability of material equipment but also contribute to a general reduction of firefighters´ exposure to dangerous chemical substances.
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Implementation of Encryption Algorithms in VHDL Language
Kožený, Petr ; Martínek, Tomáš (referee) ; Kořenek, Jan (advisor)
This thesis deals with design and implementation of AES and DES encryption architectures for embedded systems. Architectures are implemented in VHDL language and design for FPGA technology. The proposed implementations are mapped on the Xilinx Spartan 3 technology. Both architectures are applied in simple ECB (Electronic Codebook) scheme with cache memories. A maximum throughput of design DES architecture 370 Mbps is achived with clock frequency of 104 MHz. The throughput of AES architecture at the maximum clock frequency of 118 MHz is 228 Mbps. Compared to software implementations for embedded systems, we achieve significantly higher throughput for both architectures.
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Readiness analysis of HZS Pardubice region to extraordinary events solution with CBRN substances
KOŽENÝ, Petr
HAZMAT team of the Fire Rescue Services of the Czech Republic (HZS CR) plays a significant role in those cases where CBRN were used. Firefighters - technicians of the HAZMAT team in the regions fulfil the tasks involving extraordinary events where dangerous substances can be found. They provide the maintenance of special equipment, special training, information support, inspections, decontaminations, marking of dangerous zones etc. To be successful in fulfilling their tasks they have to undergo continuous training and updating of knowledge. Regular professional training is necessary for operability of the crew as a whole but it should be organised according to classification of the firefighters. The training of the rank of assistants working as firefighters should respect the fact that the professional competence is verified every five years. The aim of this work is to asses professional knowledge of firefighters - technicians of the HAZMAT team in particular regions and to summarise the results of the professional training especially by using tests. The work is divided into two parts: theoretical and empirical with the hypothesis and methodology. There is a description of the CBRN term, tasks and tools for cooperation and coordination of the Integrated Rescue System (IZS) as well as the role of the Fire Rescue Services (HZS) dealing with CBRN NOx extraordinary events The last part of this work mentions special technical equipment of the Fire Rescue Services in the Pardubice Region used for dealing with CBRN. Especially protective equipment, detection equipment and analysers. Part of this work analyses whether professional knowledge of the technicians of the HAZMAT team of the Fire Rescue Services of the Pardubice Region complies with the requirements of the standards of the supreme authorities (MV - GR HZS CR). To prove or disapprove the findings, the content analysis of the professional intranet training module of the Fire Rescue Services of the Pardubice Region and evaluation of the results of tests for firefighters - HAZMAT team were used. Testing and practical examinations are part of the annual verification process of the FRS (HZS) of the Pardubice Region. The assessment of the professional knowledge itself was carried out using analysis of the testing results, which are in accordance with the HAZMAT team regulations. Testing questions are sorted out regarding wrong answers of the HAZMAT teams from the local regions since 2012 when the first testing was carried out. Also the subgroups of questions were taken into consideration. The results show differences between particular local regions of the Pardubice Region. The structure of the testing tasks itself shows essential flaws. The structure and headings of the testing sets are not chosen appropriately and neither are number of questions a their distribution in subgroups and their updating. Current testing questions don't check necessary and required knowledge of firefighters efficiently. The findings resulted in submitting a proposal of unified procedure concerning intranet module of professional training of the FRS (HZS) of the Pardubice Region. This newborn methodical procedure should solve competences and unified approach in creating of new teaching materials and testing tasks and also specify guarantors for making and updating of the professional training. New structure of the sets of questions, their professional focus and the number of questions generated in testing tasks is proposed for the testing of the members of the HAZMAT team. The new proposal of the sets of questions is going to be well structured, it should allow to start better professional training and provide basis for demanding checking of professional competence
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