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Biometric Performance Testing of Signature Technology
Homola, Petr ; Drahanský, Martin (referee) ; Fiala, Jiří (advisor)
This bachelor thesis is focused to possibilities of biometrics of dynamics signature. The first part is devoted to general explanations of basic concepts and standards for measuring effectiveness. Explains the problematics of processing characteristics of the signature. Descibes the equipment of the appropriate components for capturing the dynamic signature. The main section deals with testing abillities of verification of user and identification and testing the posibillities of deception devices. Presents design and implementation of program for identification. Records the progress and results of all performed tests.
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Realization of attack on SHA-1 hash function
Dziura, Michal ; Hajný, Jan (referee) ; Malý, Jan (advisor)
The bachelor thesis is concerned with hash functions, SHA-1 function and its implementation in Java. The thesis describes weaknesses of this function and implements the implementation of the selected attack leading to the revelation of source text or attack based on targeted falsifying hash. This work also describes characteristics of hash functions, constructions and their use. The last part deals with a description of the attack on the hash function SHA-1 with the complexity of the 2^69.
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Automatic Tracking of DNSSEC Configuration on DNS Servers
Lat, Radek ; Polčák, Libor (referee) ; Matoušek, Petr (advisor)
This bachelor thesis describes design and implementation of a tool for tracking of configuration of DNSSEC security extension on DNS servers. The goal is to perform automatic signature verification, tracking of cryptographic algorithms being used and inform about potential or found problems. Bachelor thesis has been developed in cooperation with CZ.NIC.
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Secure Transport of NetFlow Data
Ručka, Tomáš ; Halfar, Patrik (referee) ; Grégr, Matěj (advisor)
The aim of my bachalor's thesis is secure transport NetFlow data. Communication in NetFlow is not protected against unauthorized intrusion, in addition works over UDP protocol which is protocol that allows data loss. The aim of this work is to create an encrypted tunnel through which communication will take place between the exporter and collector.
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Medical Software for Accounting
Pohl, Ondřej ; Veselý, Vladimír (referee) ; Grégr, Matěj (advisor)
The aim of this thesis is an extension of medical software OpenDositech. Implementation of interface for communication with portals of insurance companies is extension into OpenDositech program. In the first part available medical softwares are described together with API for sending. The thesis next deals with the Portal of insurance companies. At the end the thesis describes implementation of the API into OpenDositech program.
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Analysis of Automated Generation of Signatures Using Honeypots
Bláha, Lukáš ; Barabas, Maroš (referee) ; Drozd, Michal (advisor)
In this paper, system of automatic processing of attacks using honeypots is discussed. The first goal of the thesis is to become familiar with the issue of signatures to detect malware on the network, especially the analysis and description of existing methods for automatic generation of signatures using honeypots. The main goal is to use the acquired knowledge to the design and implementation of tool which will perform the detection of new malicious software on the network or end user's workstation.
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Electronic signature in practice
Miška, Matěj ; Burda, Karel (referee) ; Člupek, Vlastimil (advisor)
This bachelor's thesis deals with the creation and development of a system for management and security of digital certificates used for signing documents. The application created in this thesis is conceptualised as a console application used from command line of a system. This solution is justified by the possibility of being continued as a graphic user interface extension or adopted by another application. The application allows for the creation of a user account, through which a person can import their certificates with passwords into the application and subsequently use the certificates in signing PDF documents or PNG files. Algorithms ensuring the security of saved data are implemented by the application. The theoretical part of this thesis analyzes the creation and work with certificates and signature keys in real life, including the creation of own self-signed certificate. The theoretical part concludes with the testing of usage of the certificates.
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Signature of Preschool Age Children
Ondráčková, Blanka ; Viktorová, Ida (advisor) ; Páchová, Anna (referee)
The bachelor thesis devotes to the issue of writing and understanding the signature of preschool age. The theoretical part, after a concise summary of the characteristics of the developmental period and defining the relationship between literacy and graphomotory, primarily egages in children's understanding writing and perception of printed words. It mentions relevant researches related to the topic of child ability to write their name and the influence of this skill to the next child development. It also deals with the notion of "signature" and the reasons its attractiveness for preschool children. The focus of this thesis is own empirical research, the aim was to determine the relationship of preschool children to the signature. The first point of interest was the linguistic understanding of the signature and the other children's image of its social importance and usefulness. The attention was paid to the graphic representation of the signature and the ability to read it subsequently and repeatedly in context of linguistic understanding of the signature. This part of the research is focused on children's understanding of the print system and the function of letters as placeholders, ie the awareness that isolated letters do not mean itself. The children's view of the importance of the signature...
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Name Writing and Reading of Preschool Age Children
Kubíková, Adéla ; Viktorová, Ida (advisor) ; Špačková, Klára (referee)
This bachelor thesis deals with the issue of writing and reading personal names in the preschool period. The personal name is very attractive for the children, and therefore they usually want to learn to write this particular name first. Thanks to the signature, the children gradually become acquainted with the system of writing and the entire culture of writing. In its theoretical part, it briefly describes the individual development characteristics of a preschool child. Further on, it deals with the development of writing in the preschool age and the development of abilities and skills needed to learn to write and read. The focus of the paper lies in the practical part. It is the author's own empirical research of a heterogenic group of children aged 3-6 years. Children had several tasks, such as sign up and then re-read their signature or recognize their name in a short text. The aim of the research was to find out the relationship of the preschool children to their signature. Attention was focused both on the graphic form of the signature, and on the children's notion of the social importance and usefulness of signature. The bachelor thesis also reflects on whether it is more difficult for the children to write their name or to read it.
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Electronic Legal Transaction: Comparative analysis with emphasis on the use of electronic signature under the EU law and laws of the Czech Republic and Germany
Kment, Vojtěch ; Beran, Karel (advisor) ; Cvrček, František (referee) ; Polčák, Radim (referee)
Electronic Legal Transaction: Comparative analysis with emphasis on the use of electronic signature under the EU law and laws of the Czech Republic and Germany Abstract (English) Objectives. This thesis provides a comparative analysis of electronic legal transactions under the EU law and laws of the Czech Republic and Germany, while emphasising the utilisation of higher versions of electronic signature, especially of a qualified electronic signature, which has legal effects of a handwritten signature in legal transactions performed by electronic means (Chapters 6 to 10). At the same time, increased attention is also paid to entirely novel concepts of advanced and qualified electronic seal, which are intended exclusively for use by juristic persons. The laws under scrutiny are based especially on recently adopted Regulation (EU) No 910/2014, known as eIDAS. To provide a general background, the comparative analysis is preceded by a theoretical part (Chapters 2 to 4, partially Chapter 5), dealing with the concept of legal transactions (also termed "legal acts" or "legal action") in general, while also focusing on the traditional handwritten signature and its functions, especially in view of the German and Czech legal doctrines and with occasional references to common law, as well as to requirements ensuing...
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