1、 International Telecommunication Union ITU-T X.1113TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (11/2007) SERIES X: DATA NETWORKS, OPEN SYSTEM COMMUNICATIONS AND SECURITY Telecommunication security Guideline on user authentication mechanisms for home network services ITU-T Recommendation X.1113 I
2、TU-T X-SERIES RECOMMENDATIONS DATA NETWORKS, OPEN SYSTEM COMMUNICATIONS AND SECURITY PUBLIC DATA NETWORKS Services and facilities X.1X.19 Interfaces X.20X.49 Transmission, signalling and switching X.50X.89 Network aspects X.90X.149 Maintenance X.150X.179 Administrative arrangements X.180X.199 OPEN S
3、YSTEMS INTERCONNECTION Model and notation X.200X.209 Service definitions X.210X.219 Connection-mode protocol specifications X.220X.229 Connectionless-mode protocol specifications X.230X.239 PICS proformas X.240X.259 Protocol Identification X.260X.269 Security Protocols X.270X.279 Layer Managed Objec
4、ts X.280X.289 Conformance testing X.290X.299 INTERWORKING BETWEEN NETWORKS General X.300X.349 Satellite data transmission systems X.350X.369 IP-based networks X.370X.379 MESSAGE HANDLING SYSTEMS X.400X.499DIRECTORY X.500X.599 OSI NETWORKING AND SYSTEM ASPECTS Networking X.600X.629 Efficiency X.630X.
5、639 Quality of service X.640X.649 Naming, Addressing and Registration X.650X.679 Abstract Syntax Notation One (ASN.1) X.680X.699 OSI MANAGEMENT Systems Management framework and architecture X.700X.709 Management Communication Service and Protocol X.710X.719 Structure of Management Information X.720X
6、.729 Management functions and ODMA functions X.730X.799 SECURITY X.800X.849 OSI APPLICATIONS Commitment, Concurrency and Recovery X.850X.859 Transaction processing X.860X.879 Remote operations X.880X.889 Generic applications of ASN.1 X.890X.899 OPEN DISTRIBUTED PROCESSING X.900X.999 TELECOMMUNICATIO
7、N SECURITY X.1000 For further details, please refer to the list of ITU-T Recommendations. ITU-T Rec. X.1113 (11/2007) i ITU-T Recommendation X.1113 Guideline on user authentication mechanisms for home network services Summary Some environments necessitate the authentication of the human user rather
8、than a process or a device. In authenticating human users, the authentication system requires human users to prove their uniqueness. Such uniqueness is generally based on various authentication means such as something known, something possessed or some immutable characteristics for each human user.
9、In this Recommendation, a guideline on user authentication mechanism for home network services is provided. It also considers various security issues according to ITU-T Recommendation X.1111, which specifies the framework of security technologies for home network. Finally, the security assurance lev
10、el and authentication model are defined according to authentication service scenarios. Source ITU-T Recommendation X.1113 was approved on 13 November 2007 by ITU-T Study Group 17 (2005-2008) under the ITU-T Recommendation A.8 procedure. Keywords Authenticated key exchange, client authentication, mut
11、ual authentication, security assurance level, server authentication, user authentication, user secrets. ii ITU-T Rec. X.1113 (11/2007) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication t
12、echnologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Te
13、lecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some
14、 areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized
15、 operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g. interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “s
16、hall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the
17、practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation de
18、velopment process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are the
19、refore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2008 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. ITU-T Rec. X.1113 (11/2007) iii CONTENTS Page 1 Scope 1 2 Refer
20、ences. 1 3 Terms and Definitions 2 3.1 Terms defined elsewhere 2 3.2 Terms defined in this Recommendation. 2 4 Abbreviations and acronyms 3 5 Conventions 4 6 Home network architecture. 5 6.1 General model 5 6.2 Service architecture for user authentication . 5 7 Classification of home entities for us
21、er authentication. 6 8 Consideration for user authentication between home entities 7 8.1 Remote terminal (RT) and application server (AS) . 8 8.2 Remote terminal (RT) and secure home gateway (SHG). 8 8.3 Remote terminal (RT) and home application server (HAS). 8 8.4 Remote terminal (RT) and type A de
22、vice (HD_A) 8 8.5 Remote terminal (RT) and type B device (HD_B). 8 8.6 Remote terminal (RT) and type C device (HD_C). 8 8.7 Type A device (HD_A) and application server (AS) . 8 8.8 Type A device (HD_A) and secure home gateway (SHG) 9 8.9 Type A device (HD_A) and home application server (HAS) 9 8.10
23、Type A device (HD_A) and type B device (HD_B) 9 8.11 Type A device (HD_A) and type C device (HD_C) 9 9 Security threats and security requirements for user authentication mechanisms . 9 9.1 Security threats . 9 9.2 Resistance against security threats . 10 9.3 Security requirements. 10 10 User authent
24、ication mechanism 11 10.1 Scope of user authentication mechanism . 11 10.2 Security components of the user authentication mechanism 12 10.3 Set-up for the user authentication mechanism 14 10.4 Required security services for user authentication between home entities 15 10.5 Security association 16 10
25、.6 Security assurance level . 16 10.7 Protection level of SALs 18 10.8 Authentication models 18 10.9 Relationship between SAL and home network security requirement 20 iv ITU-T Rec. X.1113 (11/2007) Page Appendix I Security association used in IPsec . 21 Appendix II Existing authentication mechanisms
26、 22 Bibliography. 23 ITU-T Rec. X.1113 (11/2007) 1 ITU-T Recommendation X.1113 Guideline on user authentication mechanisms for home network services 1 Scope The goal of this work is to provide a guideline for user authentication mechanisms to enable secure home network services. To this end, this Re
27、commendation first identifies the home entities and their relationships, security threats to the home network and security components to protect the home network from such threats. Likewise, it defines security assurance level and specifies authentication models classified by service access flow to
28、the home network. Finally, the appropriate security assurance level is applied to each authentication model. Specifically, this Recommendation: defines the service architecture for the user authentication mechanisms between the home entities based on the general security framework defined in ITU-T X
29、.1111; describes the classes of home entities applicable to user authentication mechanisms; describes the considerations between classes of home entities for user authentication mechanisms; identifies the security threats and the functional requirements related to user authentication mechanisms; def
30、ines the security components of user authentication mechanisms; defines the security assurance levels for user authentication, and; describes the authentication models. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, con
31、stitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the
32、Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T J.190 ITU-T Recommendation J.190 (2
33、002), Architecture of MediaHomeNet that supports cable-based services. ITU-T J.192 ITU-T Recommendation J.192 (2004), A residential gateway to support the delivery of cable data services. ITU-T X.800 ITU-T Recommendation X.800 (1991), Security architecture for Open Systems Interconnection for CCITT
34、applications. ITU-T X.803 ITU-T Recommendation X.803 (1994), Information technology Open Systems Interconnection Upper layers security model. ITU-T X.810 ITU-T Recommendation X.810 (1995), Information technology Open Systems Interconnection Security frameworks for open systems: Overview. ITU-T X.811
35、 ITU-T Recommendation X.811 (1995), Information technology Open Systems Interconnection Security frameworks for open systems: Authentication framework. 2 ITU-T Rec. X.1113 (11/2007) ITU-T X.814 ITU-T Recommendation X.814 (1995), Information technology Open Systems Interconnection Security frameworks
36、 for open systems: Confidentiality framework. ITU-T X.815 ITU-T Recommendation X.815 (1995), Information technology Open Systems Interconnection Security frameworks for open systems: Integrity framework. ITU-T X.1111 ITU-T Recommendation X.1111 (2007), Framework of security technologies for home net
37、work. ISO 19092-1 ISO 19092-1:2006, Financial services Biometrics Part 1: Security framework. 3 Terms and definitions 3.1 Terms defined elsewhere This Recommendation uses the following terms defined elsewhere: 3.1.1 administrator of home network: ITU-T X.1111 3.1.2 biometric: ISO 19092-1 3.1.3 biome
38、tric data: ISO 19092-1 3.1.4 capture: ISO 19092-1 3.1.5 extraction: ISO 19092-1 3.1.6 home access: ITU-T J.190 3.1.7 home application service provider: ITU-T X.1111 3.1.8 home bridge: ITU-T J.190 3.1.9 home client: ITU-T J.190 3.1.10 home device: ITU-T X.1111 3.1.11 home user: ITU-T X.1111 3.1.12 ID
39、 certificate: ITU-T X.1111 3.1.13 match: ISO 19092-1 3.1.14 raw biometric data: ISO 19092-1 3.1.15 remote terminal: ITU-T X.1111 3.1.16 remote user: ITU-T X.1111 3.1.17 security console: ITU-T X.1111 3.1.18 secure home gateway: ITU-T X.1111 3.1.19 template: ISO 19092-1 3.2 Terms defined in this Reco
40、mmendation This Recommendation defines the following terms: 3.2.1 authentication server: Authentication servers refer to servers that provide authentication services to users or other systems. Authentication is generally used as the basis for authorization (determining whether a privilege will be gr
41、anted to a particular user or process), privacy (preventing the disclosure of information to non-participants), and non-repudiation (not being able to deny having done something that was authorized to be done based on the authentication). ITU-T Rec. X.1113 (11/2007) 3 3.2.2 client authentication: Cl
42、ient authentication models a situation in which the server wants to verify the clients identity. The client responds by sending his/her credentials such as digital certificate, shared secret or password. 3.2.3 home portal: A home portal is a functional element that provides management and translatio
43、n functions to provide the user with home network services such as the control of home devices, multimedia contents, various applications, etc. In general, a home portal is a website that provides a gateway or portal to information related to various home network services. It also allows the home us
44、er to maintain and set up his/her home using the Internet. Finally, a home portal is designed to use distributed applications and different numbers and types of middleware and hardware to provide services from a number of different sources. In other words, a home portal offers information to home ne
45、twork services from various home entities in a unified manner. 3.2.4 identity proof: Identity proof refers to a process that a user proves who he/she is. To prove his/her identity in a digital environment, the user uses a set of security credentials such as user name and password, or certificates. F
46、or identity proof, those credentials shall include the users ID corresponding to the user secret. In general, when the user can successfully demonstrate possession and control of a secret token to an authentication system through an authentication protocol, identity proof of the user can be achieved
47、. 3.2.5 implicit authentication: Implicit authentication is a type of authentication without identity proof. Thus, anyone who has the correct secret can access the services. 3.2.6 mutual authentication: Mutual authentication refers to a type of authentication that enables both server authentication
48、and client authentication. 3.2.7 policy database: A policy database refers to a list of policy needs to be created in a file. In the user authentication context, this file defines the rules required for user authentication protocol. 3.2.8 security token: This is a cryptographic key stored in a speci
49、al hardware device or a general-purpose computing device. 3.2.9 server authentication: Server authentication models a situation in which the client wants to verify the servers identity. The server answers by sending its credentials such as digital certificate or shared secret. 3.2.10 session key: The session key is a temporary key used to encrypt data for the current session only. The use of session keys keeps the secret keys even more secret because
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