Securing VoIP : keeping your VoIP network safe / / Regis J. (Bud) Bates ; acquiring editor, Steve Elliot ; designer, Greg Harris

• Autore: Bates Regis J., Bud
• Pubblicazione: Waltham, Massachusetts : , : Syngress, , 2015; ©2015
• Edizione: 1st edition
• Descrizione fisica: 1 online resource (222 p.)
• Disciplina: 004.695
• Soggetto topico: Internet telephony - Security measures
• Persona (resp. second.): ElliotSteve; HarrisGreg
• Note generali: Includes index.
• Nota di contenuto: Cover; Title Page; Copyright Page; Contents; Technical editor biography; About the author; Expertise; Publications; Books; Articles; Acknowledgments; Chapter 1 - Introduction; Securing Voice over Internet Protocol (VoIP): keeping your network safe; History of telephony; History of the Internet Protocol; What goes around comes around; VoIP network and potential problems; The benefits of VoIP; Some initial thoughts on VoIP; What are the reasons for the VoIP hacking attempts; The need for VoIP security; Need for security and causes; Technology; Policy; Terms and attacks; Other vulnerabilities ; What is at riskCan a call be eavesdropped?; There is no Holy Grail out there; Summary; Chapter 2 - Policies; What is the problem?; The call control channel - hijacking; Softphone issues; Denial-of-service attacks; Security concerns; Security policy needs; Vulnerability detection and auditing; Is the system vulnerable?; Chapter 3 - VoIP virtual private networks (VPNs); Virtual private networks (VPNs) and encryption; What is a VPN?; The possible VPN solutions; What a VPN can offer; What everyone expects from securing VoIP; What is the impact?; Creating the VPN; IPSec used for site-to-site VPNs ; Disadvantages of IPSec VPN site-to-site tunnelsSummary; Chapter 4 - Cryptography solutions; Cryptography solutions; What is cryptography and encryption?; Early ciphers used; Digital signatures; Leads to a public key infrastructure; X.509 certificates; Digital certificate servers; Installing certificates on the devices; Summary; Chapter 5 - Authentication; Authentication defined; Details of 802.1x authentication; Use a VoIP-enabled firewall; Use 802.1X authentication for IP phones; Attacking VoIP Authentication; Encrypt the traffic; Authentication on wireless networks; Summary ; Chapter 6 - Other protocolsOther protocols; Overview of Real-Time Transport Protocol and Real-Time Transport Control Protocol (RTCP); RTCP; Function of Secure RTP; Enter SRTP and SRTCP; SRTP framework; Secure RTP using ZRTP; Mikey; Modes of MIKEY; Preshared key transfer; Public key transfer; Public key with Diffie-Hellman exchange; Transport protocols; Signaling: Session Initiation Protocol; Attacks on SIP; Denial of service; BYE; Authentication; Secure SIP; Transport and network layer security; Summary; Chapter 7 - The business case for securing VoIP; Before we start ; Overview of the RFC 2196Internal issues; Toll fraud - a big threat; Summary; Chapter 8 - Approaches to VoIP security; Before we start; Build it in layers; Some best practices for infrastructure security; Integrating network security; Additional thoughts and items; Registration spoofing; Summary; Chapter 9 - Final thoughts; Before we start; What we have already covered; Vendor issues; Controlling the risks; PBX best practices; Summary; Index
• Sommario/riassunto: Securing VoIP: Keeping Your VoIP Network Safe will show you how to take the initiative to prevent hackers from recording and exploiting your company's secrets. Drawing upon years of practical experience and using numerous examples and case studies, technology guru Bud Bates discusses the business realities that necessitate VoIP system security and the threats to VoIP over both wire and wireless networks. He also provides essential guidance on how to conduct system security audits and how to integrate your existing IT security plan with your VoIP system and security plans, helping you prevent
• Titolo autorizzato: Securing VoIP
• ISBN: 0-12-417122-2
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910807049603321
• Lo trovi qui: Univ. Federico II