Zabezpečení v IP sítích s technologií VoIP

Abstract

This diploma thesis is dealing with the usage of security mechanism in VoIP technology. The VoIP technology makes possible to transfer voice via computer network in the body of packets. There are described and explained concepts of the authentication, authorization, integrity and relating mechanisms in the preliminary chapter. The essential part of this thesis forms voice security, signaling and analysis of attacks on the VoIP infrastructure. There are described the types of attacks like a DoS, SPIT, Vishing and MITM. The last chapter takes focus on implementation security mechanisms in the practice. Application of security is oriented on the communication client with the server and communication itself between servers. For the security itself is used the open-source solution Asterisk and OpenSIPS.