. "411658" . . . . "Bezpe\u010Dnost VoIP syst\u00E9mu"@cs . . "978-80-7318-548-0" . "RIV/70883521:28120/07:63506387!RIV08-MSM-28120___" . . "RIV/70883521:28120/07:63506387" . "Zl\u00EDn" . . . "38"^^ . "Univerzita Tom\u00E1\u0161e Bati ve Zl\u00EDn\u011B" . "Rosman, Pavel" . . . "[3A74A850A20F]" . "Voice over IP Security"@en . "Bezpe\u010Dnost VoIP syst\u00E9mu" . . . . "Voice over Internet Protocol, also called VoIP, is the routing of voice conversations over the Internet or through any other IP-based network. Companies providing VoIP service are commonly referred to as providers, and protocols which are used to carry voice signals over the IP network are commonly referred to as Voice over IP or VoIP protocols. The current Internet architecture does not provide the same physical wire security as the phone lines. The key to securing VOIP is to use the security mechanisms like those deployed in data networks (firewalls, encryption, etc.) to emulate the security level currently enjoyed by PSTN network users. This paper deals with problems of Internet telephony security. It also contains description of basic properties and characteristics of Voice over IP technology, voice codec's, real-time transport protocols and VoIP signaling protocols for establishing and managing calls. I also categorized possible threats and attacks and included their short descriptions and s"@en . . . "Bezpe\u010Dnost VoIP syst\u00E9mu" . "Internet a bezpe\u010Dnost organizac\u00ED" . "Z(MSM 265300021)" . "Bezpe\u010Dnost VoIP syst\u00E9mu"@cs . . "28120" . . "1"^^ . "Voice over IP Security"@en . "Technologie p\u0159en\u00E1\u0161en\u00ED hlasu p\u0159es s\u00EDt\u011B IP - Voice-over-IP (VoIP) - p\u0159edstavuje budoucnost telefonov\u00E1n\u00ED. IP telefonie dnes p\u0159edstavuje nov\u00FD zp\u016Fsob, jak dod\u00E1vat pln\u011B vybaven\u00E9 telefonn\u00ED slu\u017Eby, kter\u00E9 otev\u00EDraj\u00ED cestu nov\u00E9 nab\u00EDdce multimedi\u00E1ln\u00EDch komunika\u010Dn\u00EDch slu\u017Eeb. Proto\u017Ee syst\u00E9my IP telefonie v\u00FDrazn\u011B vyu\u017E\u00EDvaj\u00ED po\u010D\u00EDta\u010Dov\u00E9ho hardwaru a softwaru je pot\u0159eba, aby byly stejn\u011B chr\u00E1n\u011Bny, jako tradi\u010Dn\u00ED po\u010D\u00EDta\u010Dov\u00E9 instalace. P\u0159\u00EDsp\u011Bvek se zab\u00FDv\u00E1 problematikou bezpe\u010Dnosti internetov\u00E9 telefonie. Jsou zde pops\u00E1ny mo\u017En\u00E9 \u00FAtoky na VoIP architekturu a specifikov\u00E1ny z\u00E1kladn\u00ED po\u017Eadavky pro bezpe\u010Dn\u00FD a spolehliv\u00FD provoz. V p\u0159\u00EDsp\u011Bvku jsou pops\u00E1ny bezpe\u010Dnostn\u00ED mechanismy z\u00E1kladn\u00ED prevence s c\u00EDlem zajistit spolehliv\u00FD p\u0159enos medi\u00E1ln\u00EDch dat tak, aby syst\u00E9my IP telefonie, a s nimi spojen\u00E9 datov\u00E9 s\u00EDt\u011B, byly maxim\u00E1ln\u011B chr\u00E1n\u011Bny proti mo\u017En\u00FDm \u00FAtok\u016Fm. Jsou zde tak\u00E9 pops\u00E1ny nejv\u011Bt\u0161\u00ED hrozby, s uveden\u00EDm mo\u017En\u00FDch \u00FAtok\u016F, kter\u00E9 pat\u0159\u00ED k v sou\u010Dasn\u00E9 dob\u011B k nej\u010Dast\u011Bj\u0161\u00EDm, kter\u00E9 jsou definov\u00E1ny z pohledu jejich v\u00FDznamu, slabin a mo\u017En\u00FDch probl\u00E9mov\u00FDch"@cs . "1"^^ . "Voice over IP; VoIP; security; attacks; threats; communication; Internet telephony"@en . "Technologie p\u0159en\u00E1\u0161en\u00ED hlasu p\u0159es s\u00EDt\u011B IP - Voice-over-IP (VoIP) - p\u0159edstavuje budoucnost telefonov\u00E1n\u00ED. IP telefonie dnes p\u0159edstavuje nov\u00FD zp\u016Fsob, jak dod\u00E1vat pln\u011B vybaven\u00E9 telefonn\u00ED slu\u017Eby, kter\u00E9 otev\u00EDraj\u00ED cestu nov\u00E9 nab\u00EDdce multimedi\u00E1ln\u00EDch komunika\u010Dn\u00EDch slu\u017Eeb. Proto\u017Ee syst\u00E9my IP telefonie v\u00FDrazn\u011B vyu\u017E\u00EDvaj\u00ED po\u010D\u00EDta\u010Dov\u00E9ho hardwaru a softwaru je pot\u0159eba, aby byly stejn\u011B chr\u00E1n\u011Bny, jako tradi\u010Dn\u00ED po\u010D\u00EDta\u010Dov\u00E9 instalace. P\u0159\u00EDsp\u011Bvek se zab\u00FDv\u00E1 problematikou bezpe\u010Dnosti internetov\u00E9 telefonie. Jsou zde pops\u00E1ny mo\u017En\u00E9 \u00FAtoky na VoIP architekturu a specifikov\u00E1ny z\u00E1kladn\u00ED po\u017Eadavky pro bezpe\u010Dn\u00FD a spolehliv\u00FD provoz. V p\u0159\u00EDsp\u011Bvku jsou pops\u00E1ny bezpe\u010Dnostn\u00ED mechanismy z\u00E1kladn\u00ED prevence s c\u00EDlem zajistit spolehliv\u00FD p\u0159enos medi\u00E1ln\u00EDch dat tak, aby syst\u00E9my IP telefonie, a s nimi spojen\u00E9 datov\u00E9 s\u00EDt\u011B, byly maxim\u00E1ln\u011B chr\u00E1n\u011Bny proti mo\u017En\u00FDm \u00FAtok\u016Fm. Jsou zde tak\u00E9 pops\u00E1ny nejv\u011Bt\u0161\u00ED hrozby, s uveden\u00EDm mo\u017En\u00FDch \u00FAtok\u016F, kter\u00E9 pat\u0159\u00ED k v sou\u010Dasn\u00E9 dob\u011B k nej\u010Dast\u011Bj\u0161\u00EDm, kter\u00E9 jsou definov\u00E1ny z pohledu jejich v\u00FDznamu, slabin a mo\u017En\u00FDch probl\u00E9mov\u00FDch" . . . "38" .