1、 ETSI TS 133 179 V13.5.0 (2018-01) LTE; Security of Mission Critical Push To Talk (MCPTT) over LTE (3GPP TS 33.179 version 13.5.0 Release 13) TECHNICAL SPECIFICATION ETSI ETSI TS 133 179 V13.5.0 (2018-01)13GPP TS 33.179 version 13.5.0 Release 13Reference RTS/TSGS-0333179vd50 Keywords LTE,SECURITY ET
2、SI 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 The present document can be downloaded from: http
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7、ation of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. ETSI 2018. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are trademarks of ETSI registered for the bene
8、fit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members. GSM and the GSM logo are trademarks registered and owned by the GSM Association. ETSI ETSI TS 133 179 V13.5.0 (2018-01)23GPP TS 33.179 version 13.5.0 Release 13Intellectual Property R
9、ights Essential patents 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 be found in ETSI SR 000 314: “Intellectual Property Righ
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13、itute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP
14、 identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present d
15、ocument “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables exce
16、pt when used in direct citation. ETSI ETSI TS 133 179 V13.5.0 (2018-01)33GPP TS 33.179 version 13.5.0 Release 13Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 7g31 Scope 8g32 References 8g33 Definitions and abbreviations . 10g33.1 Definitions 10g33.2 Abb
17、reviations . 10g34 Overview of MCPTT security 10g34.1 General . 10g34.2 Signalling plane security architecture. 11g34.3 Application plane security architecture 11g34.3.1 General 11g34.3.2 User authentication and authorisation . 12g34.3.3 Identity keying of users and services 12g34.3.4 Protection of
18、application plane signalling . 13g34.3.5 Media security 14g34.3.5.1 General 14g34.3.5.2 Media security for group communications. . 14g34.3.5.3 Media security for private calls . 15g35 Authentication and authorization . 16g35.1 General . 16g35.2 LTE access authentication and security mechanism. 17g35
19、.3 Authentication for SIP core access . 17g35.4 Authentication for HTTP-1 17g35.5 User authentication . 17g35.5.1 Identity management functional model . 17g35.5.2 User authentication framework . 19g35.5.3 OpenID Connect (OIDC) 19g35.5.3.1 General 19g35.5.3.2 User authentication example using Usernam
20、e/Password 21g35.6 MCPTT user authorization . 21g35.6.1 General 21g35.6.2 MCPTT user service authorization with MCPTT Server 23g35.6.2.0 General 23g35.6.2.1 Using SIP REGISTER 23g35.6.2.2 Using SIP PUBLISH . 24g36 Signalling plane protection . 25g36.1 SIP-1 interface security 25g36.2 HTTP-1 interfac
21、e security 25g37 End-to-end communication security 25g37.1 Overview 25g37.2 Key provisioning and management 26g37.2.1 General 26g37.2.2 Functional model for key management . 26g37.2.2.0 General 26g37.2.2.1 Reference point CSC-8 (between key management server and the key management client within the
22、MCPTT UE) 27g37.2.2.2 Reference point CSC-9 (between the key management server and the key management client within the MCPTT Server) 27g3ETSI ETSI TS 133 179 V13.5.0 (2018-01)43GPP TS 33.179 version 13.5.0 Release 137.2.2.3 Reference point CSC-10 (between the key management server and the key manag
23、ement client within a group management server) 27g37.2.3 Security procedures for key management . 27g37.2.4 Provisioned key material to support end-to-end communication security 29g37.3 Group call key distribution . 29g37.3.1 General 29g37.3.2 Security procedures for GMK provisioning 31g37.3.3 Key I
24、dentification and purpose tags 32g37.3.4 Group creation procedure . 32g37.3.5 Dynamic group keying 33g37.3.5.1 General 33g37.3.5.2 Group regrouping procedures (within a single MCPTT system) 33g37.3.5.3 Group regrouping procedures (involving multiple MCPTT systems) . 33g37.3.6 Derivation of SRTP/SRTC
25、P master keys . 34g37.4 Private call key distribution 35g37.4.1 General 35g37.4.2 Security procedures (on-network) . 36g37.4.3 Security procedures (off-network) 37g37.4.4 Derivation of SRTP/SRTCP master keys . 38g37.4.5 Void 39g37.5 Protection of media stream (SRTP) 39g37.5.1 General 39g37.5.2 Secur
26、ity procedures for media stream protection 40g37.6 Protection of offline floor and media control signalling (SRTCP) . 41g37.6.1 General 41g37.6.2 Security procedures for offline floor and media control protection 42g37.7 Protection of MBMS subchannel control messages (SRTCP) . 43g37.7.1 General 43g3
27、7.7.2 Key distribution 43g37.7.3 Derivation of SRTCP master keys 44g38 Inter/Intra domain interface security 45g38.1 General . 45g39 Protection of floor control and sensitive application signalling . 45g39.1 Key agreement for protection of floor control and sensitive application data (Client to Serv
28、er) . 45g39.1.1 Identity-based key management for Client Server Key (CSK) . 45g39.1.2 Creation of the CSK 46g39.1.3 Secure distribution of the CSK . 46g39.1.3.0 General 46g39.1.3.1 MIKEY-SAKKE I_MESSAGE 46g39.1.3.2 Distribution of CSK during MCPTT Service Authorization and group subscription . 47g39
29、.1.3.3 Obtaining CSK from the I_MESSAGE. 47g39.1.3.4 Procedure 47g39.2 Key agreement for protection of floor control and sensitive application data between servers . 48g39.3 Protection of XML content . 49g39.3.1 General 49g39.3.2 Protected content 49g39.3.3 Key agreement 50g39.3.4 Confidentiality pr
30、otection using XML encryption (xmlenc) 50g39.3.4.1 General 50g39.3.4.2 XML content encryption . 50g39.3.4.3 XML URI attribute encryption 51g39.3.5 Integrity protection using XML signature (xmlsig) 52g39.4 Key agreement for online floor control (SRTCP) 53g39.4.1 General . 53g39.4.2 Key agreement betw
31、een MCPTT client and MCPTT Server . 53g39.4.3 Key agreement between MCPTT Servers 53g39.4.4 Key agreement for multicast from MCPTT Server 53g39.4.5 Derivation of SRTCP key material . 53g3Annex A (normative): Security requirements . 55g3ETSI ETSI TS 133 179 V13.5.0 (2018-01)53GPP TS 33.179 version 13
32、.5.0 Release 13A.0 Introduction 55g3A.1 Configuration 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incre
33、mented when editorial only changes have been incorporated in the document. ETSI ETSI TS 133 179 V13.5.0 (2018-01)83GPP TS 33.179 version 13.5.0 Release 131 Scope The present document specifies the security architecture, procedures and information flows needed to protect the mission critical push to
34、talk (MCPTT) service. The architecture includes mechanisms for authentication, protection of MCPTT signalling and protection of MCPTT media. Security for both MCPTT group calls and MCPTT private calls operating in on-network and off-network modes of operation is specified. The functional architectur
35、e for MCPTT is defined in 3GPP TS 23.179 2, the corresponding service requirements are defined in 3GPP TS 22.179 3. The MCPTT service can be used for public safety applications and also for general commercial applications e.g. utility companies and railways. As the security model is based on the pub
36、lic safety environment, some security features may not be applicable to MCPTT for commercial purposes. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. - References are either specific (identified by date of
37、 publication, edition number, version number, etc.) or non-specific. - For a specific reference, subsequent revisions do not apply. - For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitl
38、y refers to the latest version of that document in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 23.179: “Functional architecture and information flows to support mission critical communication services; Stage 2“. 3 3GPP TS 22.179: “Missi
39、on Critical Push To Talk (MCPTT) over LTE; Stage 1“. 4 3GPP TS 33.210: 3G security; Network Domain Security (NDS); IP network layer security. 5 3GPP TS 33.310: “Network Domain Security (NDS); Authentication Framework (AF)“. 6 3GPP TS 33.203: “3G security; Access security for IP-based services“. 7 Vo
40、id. 8 3GPP TS 33.328: IP Multimedia Subsystem (IMS) media plane security. 9 IETF RFC 6507: Elliptic Curve-Based Certificateless Signatures for Identity-Based Encryption (ECCSI). 10 IETF RFC 6508: Sakai-Kasahara Key Encryption (SAKKE). 11 IETF RFC 6509: MIKEY-SAKKE: Sakai-Kasahara Key Encryption in M
41、ultimedia Internet KEYing (MIKEY). 12 IETF RFC 3550: RTP: A Transport Protocol for Real-Time Applications. 13 IETF RFC 3711: “The Secure Real-time Transport Protocol (SRTP)“. 14 3GPP TS 33.401: “3GPP System Architecture Evolution (SAE); Security architecture“. 15 3GPP TS 23.228: “IP Multimedia Subsy
42、stem (IMS); Stage 2“. 16 3GPP TS 33.222: “Generic Authentication Architecture (GAA); Access to network application functions using Hypertext Transfer Protocol over Transport Layer Security (HTTPS)“. ETSI ETSI TS 133 179 V13.5.0 (2018-01)93GPP TS 33.179 version 13.5.0 Release 1317 3GPP TS 33.220: “Ge
43、neric Authentication Architecture (GAA); Generic Bootstrapping Architecture (GBA)“. 18 NIST FIPS 180-4: “Secure Hash Standard (SHS)“. 19 IETF RFC 6749: “The OAuth 2.0 Authorization Framework“. 20 IETF RFC 6750: “The OAuth 2.0 Authorization Framework: Bearer Token Usage“. 21 OpenID Connect 1.0: “Open
44、ID Connect Core 1.0 incorporating errata set 1“, http:/ 22 IETF RFC 3830: “MIKEY: Multimedia Internet KEYing“. 23 IETF RFC 3602: “The AES-CBC Cipher Algorithm and Its Use with IPsec“. 24 IETF RFC 4771: “Integrity Transform Carrying Roll-Over Counter for the Secure Real-time Transport Protocol (SRTP)
45、“. 25 IETF RFC 6043: “MIKEY-TICKET: Ticket-Based Modes of Key Distribution in Multimedia Internet KEYing (MIKEY)“. 26 IETF RFC 7714: AES-GCM Authenticated Encryption in the Secure Real-time Transport Protocol (SRTP). 27 W3C: “XML Encryption Syntax and Processing Version 1.1“, https:/www.w3.org/TR/xm
46、lenc-core1/. 28 W3C: “XML Signature Syntax and Processing (Second Edition)“, http:/www.w3.org/TR/xmldsig-core/. 29 IETF RFC 5905: “Network Time Protocol Version 4: Protocol and Algorithms Specification“. 30 IETF RFC 5480: “Elliptic Curve Cryptography Subject Public Key Information“. 31 IETF RFC 6090
47、: “Fundamental Elliptic Curve Cryptography Algorithms“. 32 IETF RFC 7519: “JSON Web Token (JWT)“. 33 IETF RFC 7662: “OAuth 2.0 Token Introspection“. 34 IETF RFC 3394: “Advanced Encryption Standard (AES) Key Wrap Algorithm“. 35 IETF RFC 7515: “JSON Web Signature (JWS)“. 36 NIST Special Publication 80
48、0-38D: “Recommendation for Block Cipher Modes of Operation: Galois/Counter Mode (GCM) and GMAC“. 37 IETF RFC 2045: “Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies“. 38 IETF RFC 2392: “Content-ID and Message-ID Uniform Resource Locators“. 39 3GPP TS 24.380: “
49、 Mission Critical Push To Talk (MCPTT) media plane control; Protocol specification“. ETSI ETSI TS 133 179 V13.5.0 (2018-01)103GPP TS 33.179 version 13.5.0 Release 133 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 1 and the following apply. A term defined in the present document takes precedence over the definition of the same t
