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Hardware for lightweight cryptographic implementation
Jedlička, Jakub ; Cíbik, Peter (referee) ; Smékal, David (advisor)
This bachelor thesis deals with the topic of lightweight cryptography and the implementation of a selected cipher on a field programmable gate array (FPGA). Thesis first deals with the theory, where hardware elements, general cryptography and lightweight cryptography are described with focus on the LBlock and PRESENT ciphers. It then describes the selection of a cipher type and then the selection of a particular lightweight cryptography cipher. Next the LBlock cipher is selected, implemented, and tested as a custom intellectual property (IP) block using a hardware descriptive language for very fast integrated circuits (VHDL). This block is used in the block design to implement the encryptor on the ZYBO-Z7 development board. The input and output data handling is implemented on the Zynq-7000 processing system chip, which passes the data to the programmable logic. Finally this communication and implementation is described where the operational modes used for the LBlock cipher are cipher feedback mode and output feedback mode. For these operational modes, measurements are made to determine the encryption speed of the data stored on the microSD card and the pitfalls resulting from this encryption are described.
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Integration and automation of deployment of updated load testing modules
Jedlička, Jakub ; Člupek, Vlastimil (referee) ; Šeda, Pavel (advisor)
This thesis focuses on performance testing using JMeter and developing modules for denial of service (DoS) attacks. The thesis first deals with the theory, where performance testing is described, the tools used for this type of testing and finally the types of DoS attacks. The practical part starts with the migration of the operating system of the load tester on which the testing was performed. It also describes the upgrade of the JMeter tool from version 4.0 to version 5.5, updating the custom add-on modules and fixing bugs in modules so that the modules can be used without errors with the JMeter tool in version 5.5. The updated JMeter tool and custom add-on modules are uploaded to the load tester. For future updates, automation scripts are created to update the system packages of the load tester, updating both the custom add-on modules and the JMeter tool. The module extensions that have been made to increase the scope of the tests are then discussed. These extensions add mainly link layer parameters and support for IPv6. The final section describes the newly created parts of the DDoS module. The new parts of the module extend the capabilities of testing web applications using multiple IP addresses or testing using slow attacks.
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Custom Intellectual Property Block For Lblock Cipher
Jedlička, Jakub
This paper presents the implementation of a lightweight cryptographic cipher for a hardware-constrained device. Describes the basic problems of lightweight cryptography on the field programmablegate array (FPGA) and its one representative cipher LBlock. Furthermore deals with theimplementation of the LBlock cipher in a very high speed integrated circuit hardware description language(VHDL) on the FPGA. The LBlock cipher is used with a custom advanced extensible interface(AXI) wrapper for the creation of a custom intellectual property (IP) block. This IP block will be usedto cipher files on the development board ZYBO Z7-20 powered by Zynq-7000. The final part of thepaper describes testing of the IP block with a defined set of the inputs and the outputs are validatedwith the correct outputs.
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Hardware for lightweight cryptographic implementation
Jedlička, Jakub ; Cíbik, Peter (referee) ; Smékal, David (advisor)
This bachelor thesis deals with the topic of lightweight cryptography and the implementation of a selected cipher on a field programmable gate array (FPGA). Thesis first deals with the theory, where hardware elements, general cryptography and lightweight cryptography are described with focus on the LBlock and PRESENT ciphers. It then describes the selection of a cipher type and then the selection of a particular lightweight cryptography cipher. Next the LBlock cipher is selected, implemented, and tested as a custom intellectual property (IP) block using a hardware descriptive language for very fast integrated circuits (VHDL). This block is used in the block design to implement the encryptor on the ZYBO-Z7 development board. The input and output data handling is implemented on the Zynq-7000 processing system chip, which passes the data to the programmable logic. Finally this communication and implementation is described where the operational modes used for the LBlock cipher are cipher feedback mode and output feedback mode. For these operational modes, measurements are made to determine the encryption speed of the data stored on the microSD card and the pitfalls resulting from this encryption are described.
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