Dorgham Sisalem, John Floroiu, Jiri Kuthan, Ulrich Abend, Henning Schulzrinne

SIP Security (eBook, PDF)

• Format: PDF

Produktbeschreibung

This book gives a detailed overview of SIP specific security issues and how to solve them While the standards and products for VoIP and SIP services have reached market maturity, security and regulatory aspects of such services are still being discussed. SIP itself specifies only a basic set of security mechanisms that cover a subset of possible security issues. In this book, the authors survey important aspects of securing SIP-based services. This encompasses a description of the problems themselves and the standards-based solutions for such problems. Where a standards-based solution has not been defined, the alternatives are discussed and the benefits and constraints of the different solutions are highlighted. Key Features: * Will help the readers to understand the actual problems of using and developing VoIP services, and to distinguish between real problems and the general hype of VoIP security * Discusses key aspects of SIP security including authentication, integrity, confidentiality, non-repudiation and signalling * Assesses the real security issues facing users of SIP, and details the latest theoretical and practical solutions to SIP Security issues * Covers secure SIP access, inter-provider secure communication, media security, security of the IMS infrastructures as well as VoIP services vulnerabilities and countermeasures against Denial-of-Service attacks and VoIP spam This book will be of interest to IT staff involved in deploying and developing VoIP, service users of SIP, network engineers, designers and managers. Advanced undergraduate and graduate students studying data/voice/multimedia communications as well as researchers in academia and industry will also find this book valuable.

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Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 350
• Erscheinungstermin: 23. März 2009
• Englisch
• ISBN-13: 9780470516980
• Artikelnr.: 37295599

Autorenporträt

Dr Dorgham Sisalem worked with FhG Fokus between 1995 and 2004 and was involved in the development of the first SIP-based video conferencing application in 1997 and the most widely used open-source SIP proxy known as the SIP Express Router. In 2004, Dr. Sisalem co-founded iptelorg which provided the VoIP infrastructure for various large ISPs such as T-Online, Earthlink and Tiscali. Since the acquisition of iptelorg by Tekelec in 2005 Dr. Sisalem is responsible for the aspects of security in IMS at Tekelec. Besides the experience gained through deploying VoIP in large environments, Dr. Sisalem was one of the first to publish a paper on SIP security issues and is the organizer of the VoIP security workshop. Jiri Kuthan was the driving force behind the development of the widely used SIP Express Router, which is an open source implementation of a SIP proxy that is currently used by a large number of VoIP service providers. In 2004 Mr. Kuthan co-founded iptelorg and acted as its CEO. Besides his detailed experience in developing and deploying VoIP solutions, Mr. Kuthan has contributed to various security related IETF drafts and RFCs and acted as the working group chair of the BEHAVE group which was concentrating on the deploying of VoIP in NAT and firewall protected environments. Ulrich Abend works as the VoIP technical product manager at iptelorg. In his job he was mainly responsible for the deployment of VoIP solutions in large ISP environments and ensuring the security of these deployments. In 2006 he co-founded iptego, which is a start-up, dedicated to providing security solutions to VoIP service providers. As the CTO of iptego he is responsible for designing and architecting security solutions required by VoIP service providers.

Inhaltsangabe

Foreword. About the Authors. Acknowledgment. 1 Introduction. 2 Introduction
to Cryptographic Mechanisms. 2.1 Cryptographic Algorithms. 2.2 Secure
Channel Establishment. 2.3 Authentication in 3GPP Networks. 2.4 Security
Mechanisms Threats and Vulnerabilities. 3 Introduction to SIP. 3.1 What is
SIP, Why Should we Bother About it and What are Competing Technologies? 3.2
SIP: the Common Scenarios. 3.3 Introduction to SIP Operation: the SIP
Trapezoid. 3.4 SIP Components. 3.5 Addressing in SIP. 3.6 SIP Message
Elements. 3.7 SIP Dialogs and Transactions. 3.8 SIP Request Routing. 3.9
Authentication, Authorization, Accounting. 3.10 SIP and Middleboxes. 3.11
Other Parts of the SIP Eco-system. 3.12 SIP Protocol Design and Lessons
Learned. 4 Introduction to IMS. 4.1 SIP in IMS. 4.2 General Architecture.
4.3 Session Control and Establishment in IMS. 5 Secure Access and
Interworking in IMS. 5.1 Access Security in IMS. 5.2 Network Security in
IMS. 6 User Identity in SIP. 6.1 Identity Theft. 6.2 Identity
Authentication using S/MIME. 6.3 Identity Authentication in Trusted
Environments. 6.4 Strong Authenticated Identity. 6.5 Identity Theft Despite
Strong Identity. 6.6 User Privacy and Anonymity. 6.7 Subscription Theft.
6.8 Fraud and SIP. 7 Media Security. 7.1 The Real-time Transport Protocol.
7.2 Secure RTP. 7.3 Key Exchange. 8 Denial-of-service Attacks on VoIP and
IMS Services. 8.1 Introduction. 8.2 General Classification of
Denial-of-service Attacks. 8.3 Bandwidth Consumption and Denial-of-service
Attacks on SIP Services. 8.4 Bandwidth Depletion Attacks. 8.5 Memory
Depletion Attacks. 8.6 CPU Depletion Attacks. 8.7 Misuse Attacks. 8.8
Distributed Denial-of-service Attacks. 8.9 Unintentional Attacks. 8.10
Address Resolution-related Attacks. 8.11 Attacking the VoIP Subscriber
Database. 8.12 Denial-of-service Attacks in IMS Networks. 8.13 DoS
Detection and Protection Mechanisms. 8.14 Detection of DoS Attacks. 8.15
Reacting to DoS Attacks. 8.16 Preventing DoS Attacks. 8.17 DDoS Signature
Specification. 9 SPAM over IP Telephony. 9.1 Introduction. 9.2 Spam Over
SIP: Types and Applicability. 9.3 Why is SIP Good for Spam? 9.4 Legal Side
of Unsolicited Communication. 9.5 Fighting Unsolicited Communication. 9.6
General Antispam Framework. Bibliography. Index.