Chapter 12 - Security in the IMS docx

... IN THE IMS Security- Client: ipsec-3gpp; alg=hmac-sha- 1-9 6; ealg=aes-cbc; spi-c=23456789; spi-s =123 45678; port-c=2468; port-s=1357 Figure 12. 12: Security- Client header field The P-CSCF adds a Security- Server ... this P-Access-Network-Info header field and an existing one generated b y the IMS terminal, the P-CSCF also includes a network-provided parameter. Then the...

Ngày tải lên: 01/08/2014, 17:21

... Firewalls Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 32.34 In PGP, the sender of the message needs to include the identifiers of the algorithms used in the message ... Tunnel mode in action 32.23 3 2-2 SSL/TLS 3 2-2 SSL/TLS Two protocols are dominant today for providing Two protocols are dominant today for providing se...

Ngày tải lên: 15/03/2014, 12:20

... combined with the tense political situa- tion involving China and Tibet make the security of the AirJaldi network in Dharamsala a complex task. After setting up the monitoring infrastructure in San ... a very interest- ing setting from a network security standpoint. Us- ing packet capture and network intrusion detection systems (NIDS), we analyze the security of the net-...

Ngày tải lên: 28/03/2014, 22:20

... 502 CHAPTER 24. CONFERENCING IN THE IMS domain. The I-CSCF of the terminating domain consults the HSS (7) in order to resolve the PSI (i.e., the conference URI). The HSS provides the I-CSCF ... group, the IMS conferencing service only uses BFCP (specified in RFC 4582 [106]). In the future, as the work in the XCON working group progresses, the IMS con...

Ngày tải lên: 01/08/2014, 17:21

... Primary-Event-Charging-Function-Name • Secondary-Event-Charging-Function-Name • Primary-Charging-Collection-Function-Name • Secondary-Charging-Collection-Function-Name. The User-Authorization-Type AVP indicates ... S-CSCF in the mentioned AVPs, the S-CSCF inserts these keys as parameters of the Digest scheme in the SIP WWW-Authenticate header field, and then the P-CSCF removes...

Ngày tải lên: 01/08/2014, 17:21

... khoa học viễn tưởng Expert : chuyên gia Wheel :bánh xe Diagnostic machine :máy chẩn đoán bệnh Food-preparation machine :máy chuẩn bị thức ăn Urgent :khẩn cấp Proper :thích hợp Potuguse ... hòa bình Cottage : nhà tranh Face : đối phó Climate :khí hậu Drought :hạn hán Famine :nạn đói Violin : đàn vi ô lông Second half : hiệp 2 Supply of petroleum : nguốn cung cấp xăng dầu ... nấm...

Ngày tải lên: 01/07/2014, 21:21

... (2) to the I-CSCF in the presentity’s network. The I-CSCF queries the HSS using the Diameter protocol, (3), (4) in Figure 20.5, to locate the S-CSCF allocated to the presentity and forwards the ... with the Service configu- ration offered by the XDM architecture. The IMS terminal plays the role of both a watcher ´ıa- M ar t´ın The 3G IP Multimedia Subsystem (IMS...

Ngày tải lên: 01/08/2014, 17:21

... the X-3GPP-Intended-Identity header field. Then it inspects the Request-URI, d etermines, Chapter 18 Service Configuration in the IMS Chapter 17 provided a description of the protocols at the user’s disposal ... identified in HTTP, thus, excluding the host name. Of relevance in the HTTP GET request is the inclusion of an X-3GPP-Intended-Identity header field that is po...

Ngày tải lên: 01/08/2014, 17:21

... 480 CHAPTER 22. THE INSTANT MESSAGING SERVICE IN THE IMS IMS Terminal #1 (1) INVITE P-CSCF (18) 180 Ringing P-CSCF (3) INVITE (17) 180 Ringing (19) 180 Ringing S-CSCF S-CSCF (7) Diameter LIR (8) ... Trying (11) INVITE (12) 100 Trying (13) INVITE (14) 100 Trying Originating Visited Network Originating Home Network Terminating Home Network Terminating Visited Network (16) 180 Ringing...

Ngày tải lên: 01/08/2014, 17:21

... do not expect the IMS to adopt them in the immediate future. 10.3 Reservations by the Terminals Terminals use the SRF information received in session descriptions to determine the number of resource ... semantics o f the group (LS in this case) and the identifiers of the streams (the a=mid line in the streams). v=0 o =- 28908 3124 28908 3124 IN IP6 1080::8:800...

Ngày tải lên: 01/08/2014, 17:21