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Computer Identification Using JavaScript Timestamps
Jireš, Michal ; Večeřa, Vojtěch (referee) ; Polčák, Libor (advisor)
This thesis deals with remote computer identification based on its internal clock skew. This clock skew will be determined using JavaScript timestamps. The goal of this thesis is to create web page, that will use clock skew to identify computer. This web page will also be used to test time distortion capabilities of browser extension JavaScript Restrictor. Web page will try to identify computer using different security presents thus testing their efficiency.
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Packet Transmission at 100 Gb/s Ethernet
Hummel, Václav ; Dvořák, Milan (referee) ; Matoušek, Jiří (advisor)
The NetCOPE platform is used for rapid developement of hardware accelerated network applications on the family of COMBO cards. An essential part of this platform is output network module which helps designers to implement Data Link Layer of the OSI reference model, especially the MAC sublayer. This bachelor’s thesis focuses on design, implemen- tation and verification of such a module operating at speed 100 Gb/s. Furthemore, an appli- cation on the NetCOPE platform was created. It is designed for transmitting short samples of network traffic stored in QDR static memory. Transmission is controlled by precise ti- mestamps. The whole system was deployed on a COMBO card and verified by a network traffic analyzer.
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Computer Identity Based on Its Internal Clock Skew
Franková, Barbora ; Matoušek, Petr (referee) ; Polčák, Libor (advisor)
Thesis deals with remote computer identification based on its internal clock skew. It describes various methods to collect and evaluate time-related data extracted from TCP, ICMP and Javascript. Software package that implements some of those methods is attached as well. During the work, many experiments were carried out to find out possible effects of certain factors. Tests were aimed on software (operation systems, web browsers and time synchronization) as well as hardware (temperature, power source, distance and network connection type) of the remote systems. Interesting results were discovered in areas of IPv4/IPv6 address pairing and NTP time synchronization.
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Computer Identification Based on Packet Timestamps
Novotný, Jan ; Polčák, Libor (referee) ; Kaštil, Jan (advisor)
This work describes perspective identification technique called computer identification based on packet timestamps. This work also describes an algorithm to calculate skew of computer clock, on which the entire computer identification technique is based on. We will use this technique to identify a number of computers in the real computer network, the device that is running NAT and computers located behind NAT. Finally we show, how to determine the number of computers located behind NAT.
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System for Serial Communication Monitoring
Perný, Jan ; Kováč, Michal (referee) ; Kolouch, Jaromír (advisor)
There is a need for a serial communication testing tool when software or hardware developers have to solve serial communication problems. This tool must accurately catch and record the whole communication. Some type of timestamps in the record is necessary for future analysis. This diploma thesis deals with programming a serial communication monitoring equipment software with the possibility of the insertion of timestamps. Possible timestamps types and inserting methods are also discussed. The programmed monitoring software for the FOX Board hardware platform is able to catch and record the serial communication at RS232 ports and add timestamps to the record in accordance to three independent rules. The record is saved to a standard USB flash drive.
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Computer Identification Using JavaScript Timestamps
Jireš, Michal ; Večeřa, Vojtěch (referee) ; Polčák, Libor (advisor)
This thesis deals with remote computer identification based on its internal clock skew. This clock skew will be determined using JavaScript timestamps. The goal of this thesis is to create web page, that will use clock skew to identify computer. This web page will also be used to test time distortion capabilities of browser extension JavaScript Restrictor. Web page will try to identify computer using different security presents thus testing their efficiency.
|
|
|
Packet Transmission at 100 Gb/s Ethernet
Hummel, Václav ; Dvořák, Milan (referee) ; Matoušek, Jiří (advisor)
The NetCOPE platform is used for rapid developement of hardware accelerated network applications on the family of COMBO cards. An essential part of this platform is output network module which helps designers to implement Data Link Layer of the OSI reference model, especially the MAC sublayer. This bachelor’s thesis focuses on design, implemen- tation and verification of such a module operating at speed 100 Gb/s. Furthemore, an appli- cation on the NetCOPE platform was created. It is designed for transmitting short samples of network traffic stored in QDR static memory. Transmission is controlled by precise ti- mestamps. The whole system was deployed on a COMBO card and verified by a network traffic analyzer.
|
|
|
Computer Identification Based on Packet Timestamps
Novotný, Jan ; Polčák, Libor (referee) ; Kaštil, Jan (advisor)
This work describes perspective identification technique called computer identification based on packet timestamps. This work also describes an algorithm to calculate skew of computer clock, on which the entire computer identification technique is based on. We will use this technique to identify a number of computers in the real computer network, the device that is running NAT and computers located behind NAT. Finally we show, how to determine the number of computers located behind NAT.
|
|
|
Computer Identity Based on Its Internal Clock Skew
Franková, Barbora ; Matoušek, Petr (referee) ; Polčák, Libor (advisor)
Thesis deals with remote computer identification based on its internal clock skew. It describes various methods to collect and evaluate time-related data extracted from TCP, ICMP and Javascript. Software package that implements some of those methods is attached as well. During the work, many experiments were carried out to find out possible effects of certain factors. Tests were aimed on software (operation systems, web browsers and time synchronization) as well as hardware (temperature, power source, distance and network connection type) of the remote systems. Interesting results were discovered in areas of IPv4/IPv6 address pairing and NTP time synchronization.
|
|
|
System for Serial Communication Monitoring
Perný, Jan ; Kováč, Michal (referee) ; Kolouch, Jaromír (advisor)
There is a need for a serial communication testing tool when software or hardware developers have to solve serial communication problems. This tool must accurately catch and record the whole communication. Some type of timestamps in the record is necessary for future analysis. This diploma thesis deals with programming a serial communication monitoring equipment software with the possibility of the insertion of timestamps. Possible timestamps types and inserting methods are also discussed. The programmed monitoring software for the FOX Board hardware platform is able to catch and record the serial communication at RS232 ports and add timestamps to the record in accordance to three independent rules. The record is saved to a standard USB flash drive.
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