ETSI TR 187 007-2008 Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN) Feasibility study on Media Security in TISPAN NGN《电信和互联网融合业务及.pdf
《ETSI TR 187 007-2008 Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN) Feasibility study on Media Security in TISPAN NGN《电信和互联网融合业务及.pdf》由会员分享,可在线阅读,更多相关《ETSI TR 187 007-2008 Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN) Feasibility study on Media Security in TISPAN NGN《电信和互联网融合业务及.pdf(20页珍藏版)》请在麦多课文档分享上搜索。
1、 ETSI TR 187 007 V2.1.1 (2008-08)Technical Report Telecommunications and Internet converged Services andProtocols for Advanced Networking (TISPAN);Feasibility study on Media Security in TISPAN NGNETSI ETSI TR 187 007 V2.1.1 (2008-08) 2 Reference DTR/TISPAN-07021-NGN-R2 Keywords multimedia, security
2、ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can b
3、e downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the re
4、ference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documen
5、ts is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permis
6、sion. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2008. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members
7、. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TR 187 007 V2.1.1 (2008-08) 3 Contents Intellectual Property Rights4 Foreword.4 1 Scope 5 2 References 5 2.1 Normative references .5 2.2 Informative references6 3 Definitions
8、 and abbreviations.7 3.1 Definitions7 3.2 Abbreviations .7 4 General Overview.7 5 Media security regulatory considerations.9 5.1 Analysis9 5.2 Lawful Interception and data retention.9 5.3 Requirements10 6 Viability of media security provision.10 6.1 General requirements .10 6.2 Existing NGN capabili
9、ties10 6.3 End to end encryption provision.11 6.4 End to middle encryption provision .11 6.4.1 Advantages .11 6.4.2 Disadvantages .11 6.5 Cryptographic media protection.11 6.6 Summary of requirements 12 6.6.1 NGN12 6.6.2 NGCN.12 7 NGN media transfer architecture for security analysis 12 7.1 Function
10、al model12 7.2 Points of attack in NGN media architecture.13 7.2.1 Direct attack13 7.2.2 Indirect attack .13 8 Media security solution 13 8.1 General .13 8.2 Cryptographic algorithm considerations 13 8.3 Cryptographic key management.14 Annex A: User to user media scenarios15 A.1 SIP Session Establis
11、hment without Media Security.15 A.2 Media Security based on Secure Signalling Path.16 A.3 Media Security based on Key Management Protocol in Signalling Path.16 A.4 Media Security based on Media Path Keying Technique.17 A.5 Mixed Signalling and Media Path Keying Technique .18 Annex B: Bibliography19
12、History 20 ETSI ETSI TR 187 007 V2.1.1 (2008-08) 4 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can
13、be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuan
14、t to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present docume
15、nt. Foreword This Technical Report (TR) has been produced by ETSI Technical Committee Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN). ETSI ETSI TR 187 007 V2.1.1 (2008-08) 5 1 Scope The present document reports on the feasibility of providing media
16、security for TISPAN NGN Release 2 as defined by TR 180 002 i.2. Media security in the present document refers to the capability to securely transport interactive and non-interactive voice, video (including conferencing scenarios), and other multimedia data (including text based) in the user plane of
17、 a Next Generation Network (NGN). The present document provides the results of an analysis of the stage 1 definition of media security requirements and service capabilities; and presents the analysis in support of these requirements for each of simplex and duplex communication in both point-to-point
18、 and point-to-multipoint architectures. The scenarios analysed are also considered with respect to the regulatory environment of NGN. The present document presents, in clause 7, a series of stage 2 architectural models that may implement the stage 1 model for each of the NGN media deployment scenari
19、os. The present document provides in clause 8 some guidance for stage 3 design of security protocol(s) for media security. NOTE 1: Media Security for IMS is not covered by the present document but is addressed by 3GPP TR 33.828 i.17. NOTE 2: Whilst the present document is a technical report it ident
20、ifies requirements for future work. In all cases these requirements are considered indicative pending their ratification in formal ETSI Technical Specifications within the TISPAN Work Programme. 2 References References are either specific (identified by date of publication and/or edition number or v
21、ersion number) or non-specific. For a specific reference, subsequent revisions do not apply. Non-specific reference may be made only to a complete document or a part thereof and only in the following cases: - if it is accepted that it will be possible to use all future changes of the referenced docu
22、ment for the purposes of the referring document; - for informative references. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. For online referenced documents, information sufficient to identify and locate
23、the source shall be provided. Preferably, the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the method of access to the
24、 referenced document and the full network address, with the same punctuation and use of upper case and lower case letters. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following r
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