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Analysis and Detection of Multimedia Types in RTP Traffic
Kmeť, Martin ; Ryšavý, Ondřej (referee) ; Matoušek, Petr (advisor)
This thesis deals with the issues of detecting the codec used for the encoding of voice data carried by the RTP protocol without having access to the information carried by signalisation protocols in VoIP applications. Its main goal is to create and implement a fast algorithm for detecting the codec used for voice transfer via the RTP protocol. This algorithm should be fast enough to be used for offline analysis of captured data as well as for real-time online analysis. For research of possibilities were compared two approaches of detection. Detection by the characteristics of the codecs was chosen to solve the problem itself. Within the solution was performed data analysis and implementation of the application followed by testing on data.
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A Tool for Tracking RTP Streams
Kmeť, Martin ; Matoušek, Petr (referee) ; Skokanová, Jana (advisor)
This document describes the development of the algorithm and test application for detection of RTP streams in computer networks. One of the results will be a tool in Python language recognising RTP streams in data filtered from network interface in real time or from the data in pcap format.
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Security of real time multimedia data transmission
Otoupalík, Petr ; Koutný, Martin (referee) ; Hošek, Jiří (advisor)
This thesis deals with technology and security of real-time multimedia data transmission. The possibilities of the security of a multimedia data transfer and the mechanisms defined for the security of the signaling protocols SIP and H.323 are described with the view of security. The possible attacks on the real-time transfers are also mentioned. The basic requirements on the safe and reliable data transfer are specified. The main part of this thesis is focused on the security analysis of the data transmission of the selected communication clients, which use different security methods. The last part of the thesis deals with realization of simple attacks on multimedia data transmission and also on the SIP protocol.
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Transmission of Audio Data Using RTP Protocol
Novotný, Roman ; Atassi, Hicham (referee) ; Kouřil, Jiří (advisor)
This project is about technology of multimedia transmission in the real time. Introduction of this work narrate model TCP/IP. Next the bachelor´s thesis is principally aimed on theoretical design of application, which is minimally able to transfer audio data between two computers by the help of the protocol RTP. This part is included in protocols for transmission of data in the real time, especially protocol RTP and then freely accessible libraries, which are written in language C and C++, in which is RTP protocol just implemented. End of this work comes out from these knowledges, in which is realized theoretical design and it is in developmental environment of Borland Builder C++.
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A Tool for Tracking RTP Streams
Kmeť, Martin ; Matoušek, Petr (referee) ; Skokanová, Jana (advisor)
This document describes the development of the algorithm and test application for detection of RTP streams in computer networks. One of the results will be a tool in Python language recognising RTP streams in data filtered from network interface in real time or from the data in pcap format.
|
|
|
Analysis and Detection of Multimedia Types in RTP Traffic
Kmeť, Martin ; Ryšavý, Ondřej (referee) ; Matoušek, Petr (advisor)
This thesis deals with the issues of detecting the codec used for the encoding of voice data carried by the RTP protocol without having access to the information carried by signalisation protocols in VoIP applications. Its main goal is to create and implement a fast algorithm for detecting the codec used for voice transfer via the RTP protocol. This algorithm should be fast enough to be used for offline analysis of captured data as well as for real-time online analysis. For research of possibilities were compared two approaches of detection. Detection by the characteristics of the codecs was chosen to solve the problem itself. Within the solution was performed data analysis and implementation of the application followed by testing on data.
|
|
|
Transmission of Audio Data Using RTP Protocol
Novotný, Roman ; Atassi, Hicham (referee) ; Kouřil, Jiří (advisor)
This project is about technology of multimedia transmission in the real time. Introduction of this work narrate model TCP/IP. Next the bachelor´s thesis is principally aimed on theoretical design of application, which is minimally able to transfer audio data between two computers by the help of the protocol RTP. This part is included in protocols for transmission of data in the real time, especially protocol RTP and then freely accessible libraries, which are written in language C and C++, in which is RTP protocol just implemented. End of this work comes out from these knowledges, in which is realized theoretical design and it is in developmental environment of Borland Builder C++.
|
|
|
Security of real time multimedia data transmission
Otoupalík, Petr ; Koutný, Martin (referee) ; Hošek, Jiří (advisor)
This thesis deals with technology and security of real-time multimedia data transmission. The possibilities of the security of a multimedia data transfer and the mechanisms defined for the security of the signaling protocols SIP and H.323 are described with the view of security. The possible attacks on the real-time transfers are also mentioned. The basic requirements on the safe and reliable data transfer are specified. The main part of this thesis is focused on the security analysis of the data transmission of the selected communication clients, which use different security methods. The last part of the thesis deals with realization of simple attacks on multimedia data transmission and also on the SIP protocol.
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