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Web visualization and demonstrator of anonymous credentials
Chwastková, Šárka ; Malina, Lukáš (referee) ; Dzurenda, Petr (advisor)
This thesis deals with the topic of attribute based credentials with revocable anonymous credentials. The main focus of this work is the implementation of this scheme through a web application. The web application serves primarily as a visualization, which shows the functionality of this scheme through animations, and also as a practical demonstrator. Data and cryptographic calculations for individual system protocols are provided by the given cryptographic C application that communicates with the created application. The web application is also able to communicate with the connected smart card reader and the MultOS smart card and thus create the transmission of APDU commands and responses between the smart card and provided C application.
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Web-based visualization of anonymous credential scheme
Sohr, Jakub ; Malina, Lukáš (referee) ; Dzurenda, Petr (advisor)
This thesis explores attribute based credential schemes and the cryptographic preliminaries that are the building blocks of such schemes. The main focus of this thesis is the RKVAC scheme, which is implemented and visualized. This thesis also describes the entities and protocols of the RKVAC scheme and their roles within it. The implemented web application is designed to introduce the RKVAC scheme to the public.
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Application for programmable smart cards
Broda, Jan ; Dzurenda, Petr (referee) ; Hajný, Jan (advisor)
The theoretical part of the bachelor thesis deals with the issue of secure attribute authentication, which places great emphasis on the protection of privacy and digital identity. The next part of the work deals with chip cards with MultOS operation system. The practical goal of this work is to create authentication application in C language using the attribute scheme CDDH19 and revocation scheme CDH16. The attribute scheme is based on signature scheme weak Boneh Boyen and on algebraic MAC funcion. For development it was used an interface Eclipse IDE with development environment SmartDeck. The final application will allow the users secure attribute authentication without any risks of leak of sensitive information. This application is implemented on MultOS chip card and tested in cooperation with the student, who programmed the verifier side on the microcomputer Raspberry PI.
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The use of smart-cards in modern cryptography
Kočíř, Michal ; Malina, Lukáš (referee) ; Hajný, Jan (advisor)
This thesis discusses the general use of smart cards in MULTOS in cryptographic applications. At first is described two types of authentication - the authentication by the subject with focusing on authenticators and the authentication by the knowledge. Furthermore there is the description of the anonymous authentication and attribute authentization. This is followed by a description of smart cards with a focus on MULTOS cards. There is also performed analysis of programmable smart cards .NET, JavaCard and MULTOS. Practical part is focused on the implementation of an authentication scheme, which is being developed at FEEC. The communication of authentication protocol is between the MULTOS card and reader connected to a PC. The protocol is composed of cryptographic functions such as random number generation, hash function, modular exponentiation, modular multiplication and difference of large numbers. It was also implemented the measurement of specific applications.
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Cancellation and invalidity of a European trade mark
Rohlena, Jan ; Svoboda, Pavel (advisor) ; Pítra, Vladimír (referee)
Revocation and Invalidity of European Trade Mark Revocation and invalidity of European trade mark, more precisely termed as Community trade mark (hereinafter as "CTM"), is a specific field of trade mark law of the European Union. It is Council Regulation (EC) No 207/2009 of 26 February 2009 on the Community trade mark which forms a legal basis in this regard. The practice of the Office for Harmonization in the Internal Market and especially the jurisprudence of the Court of Justice of the European Union play very significant role in this area. The practice of the Office for Harmonization in the Internal Market and the jurisprudence of the Court of Justice of the European Union regarding Directive 2008/95/EC of the European Parliament and of the Council of 22 October 2008 to approximate the laws of the Member States relating to trade marks is also relevant for the revocation and invalidity of CTM as this Directive provides for the revocation and invalidity of national trade marks in similar manner. The aim of this thesis is to analyse the nature of revocation and invalidity of CTM and individual grounds for revocation and invalidity as well as selected related issues, e.g. of procedural nature. This thesis is divided into four chapters. First chapter briefly introduces the institute of CTM and trade...
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Web visualization and demonstrator of anonymous credentials
Chwastková, Šárka ; Malina, Lukáš (referee) ; Dzurenda, Petr (advisor)
This thesis deals with the topic of attribute based credentials with revocable anonymous credentials. The main focus of this work is the implementation of this scheme through a web application. The web application serves primarily as a visualization, which shows the functionality of this scheme through animations, and also as a practical demonstrator. Data and cryptographic calculations for individual system protocols are provided by the given cryptographic C application that communicates with the created application. The web application is also able to communicate with the connected smart card reader and the MultOS smart card and thus create the transmission of APDU commands and responses between the smart card and provided C application.
|
|
|
Web-based visualization of anonymous credential scheme
Sohr, Jakub ; Malina, Lukáš (referee) ; Dzurenda, Petr (advisor)
This thesis explores attribute based credential schemes and the cryptographic preliminaries that are the building blocks of such schemes. The main focus of this thesis is the RKVAC scheme, which is implemented and visualized. This thesis also describes the entities and protocols of the RKVAC scheme and their roles within it. The implemented web application is designed to introduce the RKVAC scheme to the public.
|
|
|
Application for programmable smart cards
Broda, Jan ; Dzurenda, Petr (referee) ; Hajný, Jan (advisor)
The theoretical part of the bachelor thesis deals with the issue of secure attribute authentication, which places great emphasis on the protection of privacy and digital identity. The next part of the work deals with chip cards with MultOS operation system. The practical goal of this work is to create authentication application in C language using the attribute scheme CDDH19 and revocation scheme CDH16. The attribute scheme is based on signature scheme weak Boneh Boyen and on algebraic MAC funcion. For development it was used an interface Eclipse IDE with development environment SmartDeck. The final application will allow the users secure attribute authentication without any risks of leak of sensitive information. This application is implemented on MultOS chip card and tested in cooperation with the student, who programmed the verifier side on the microcomputer Raspberry PI.
|
|
|
Cancellation and invalidity of a European trade mark
Rohlena, Jan ; Svoboda, Pavel (advisor) ; Pítra, Vladimír (referee)
Revocation and Invalidity of European Trade Mark Revocation and invalidity of European trade mark, more precisely termed as Community trade mark (hereinafter as "CTM"), is a specific field of trade mark law of the European Union. It is Council Regulation (EC) No 207/2009 of 26 February 2009 on the Community trade mark which forms a legal basis in this regard. The practice of the Office for Harmonization in the Internal Market and especially the jurisprudence of the Court of Justice of the European Union play very significant role in this area. The practice of the Office for Harmonization in the Internal Market and the jurisprudence of the Court of Justice of the European Union regarding Directive 2008/95/EC of the European Parliament and of the Council of 22 October 2008 to approximate the laws of the Member States relating to trade marks is also relevant for the revocation and invalidity of CTM as this Directive provides for the revocation and invalidity of national trade marks in similar manner. The aim of this thesis is to analyse the nature of revocation and invalidity of CTM and individual grounds for revocation and invalidity as well as selected related issues, e.g. of procedural nature. This thesis is divided into four chapters. First chapter briefly introduces the institute of CTM and trade...
|
|
|
The use of smart-cards in modern cryptography
Kočíř, Michal ; Malina, Lukáš (referee) ; Hajný, Jan (advisor)
This thesis discusses the general use of smart cards in MULTOS in cryptographic applications. At first is described two types of authentication - the authentication by the subject with focusing on authenticators and the authentication by the knowledge. Furthermore there is the description of the anonymous authentication and attribute authentization. This is followed by a description of smart cards with a focus on MULTOS cards. There is also performed analysis of programmable smart cards .NET, JavaCard and MULTOS. Practical part is focused on the implementation of an authentication scheme, which is being developed at FEEC. The communication of authentication protocol is between the MULTOS card and reader connected to a PC. The protocol is composed of cryptographic functions such as random number generation, hash function, modular exponentiation, modular multiplication and difference of large numbers. It was also implemented the measurement of specific applications.
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