1、 Reference numberISO/IEC 10021-2:2003(E)ISO/IEC 2003Information technology Message Handling Systems (MHS): Overall Architecture Technologies de linformation Systmes de messagerie (MHS): Architecture globale National Standard of CanadaCAN/CSA-ISO/IEC 10021-2:04(ISO/IEC 10021-2:2003)International Stan
2、dard ISO/IEC 10021-2:2003 (third edition, 2003-12-15) has been adopted withoutmodification (IDT) as CSA Standard CAN/CSA-ISO/IEC 10021-2:04, which has been approved as a NationalStandard of Canada by the Standards Council of Canada.ISBN 1-55397-813-7 December 2004The Canadian Standards Association (
3、CSA), under whose auspices this National Standard has been produced, was chartered in 1919 and accredited by the Standards Council of Canada to the National Standards system in 1973. It is a not-for-profit, nonstatutory, voluntary membership association engaged in standards development and certifica
4、tion activities. CSA standards reflect a national consensus of producers and users including manufacturers, consumers, retailers, unions and professional organizations, and governmental agencies. The standards are used widely by industry and commerce and often adopted by municipal, provincial, and f
5、ederal governments in their regulations, particularly in the fields of health, safety, building and construction, and the environment. Individuals, companies, and associations across Canada indicate their support for CSAs standards development by volunteering their time and skills to CSA Committee w
6、ork and supporting the Associations objectives through sustaining memberships. The more than 7000 committee volunteers and the 2000 sustaining memberships together form CSAs total membership from which its Directors are chosen. Sustaining memberships represent a major source of income for CSAs stand
7、ards development activities. The Association offers certification and testing services in support of and as an extension to its standards development activities. To ensure the integrity of its certification process, the Association regularly and continually audits and inspects products that bear the
8、 CSA Mark. In addition to its head office and laboratory complex in Toronto, CSA has regional branch offices in major centres across Canada and inspection and testing agencies in eight countries. Since 1919, the Association has developed the necessary expertise to meet its corporate mission: CSA is
9、an independent service organization whose mission is to provide an open and effective forum for activities facilitating the exchange of goods and services through the use of standards, certification and related services to meet national and international needs.For further information on CSA services
10、, write toCanadian Standards Association5060 Spectrum Way, Suite 100Mississauga, Ontario, L4W 5N6CanadaThe Standards Council of Canada is the coordinating body of the National Standards system, a federation of independent, autonomous organizations working towards the further development and improvem
11、ent of voluntary standardization in the national interest. The principal objects of the Council are to foster and promote voluntary standardization as a means of advancing the national economy, benefiting the health, safety, and welfare of the public, assisting and protecting the consumer, facilitat
12、ing domestic and international trade, and furthering international cooperation in the field of standards. A National Standard of Canada is a standard which has been approved by the Standards Council of Canada and one which reflects a reasonable agreement among the views of a number of capable indivi
13、duals whose collective interests provide to the greatest practicable extent a balance of representation of producers, users, consumers, and others with relevant interests, as may be appropriate to the subject in hand. It normally is a standard which is capable of making a significant and timely cont
14、ribution to the national interest. Approval of a standard as a National Standard of Canada indicates that a standard conforms to the criteria and procedures established by the Standards Council of Canada. Approval does not refer to the technical content of the standard; this remains the continuing r
15、esponsibility of the accredited standards development organization. Those who have a need to apply standards are encouraged to use National Standards of Canada whenever practicable. These standards are subject to periodic review; therefore, users are cautioned to obtain the latest edition from the o
16、rganization preparing the standard.The responsibility for approving National Standards of Canada rests with theStandards Council of Canada270 Albert Street, Suite 200Ottawa, Ontario, K1P 6N7CanadaAlthough the intended primary application of this Standard is stated in its Scope, it is importantto not
17、e that it remains the responsibility of the users to judge its suitability for their particular purpose.Registered trade-mark of Canadian Standards AssociationCAN/CSA-ISO/IEC 10021-2:04Information technology Message HandlingSystems (MHS): Overall ArchitectureDecember 2004 Canadian Standards Associat
18、ion CSA/1CAN/CSA-ISO/IEC 10021-2:04Information technology Message Handling Systems (MHS): Overall ArchitectureCSA PrefaceStandards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technolog
19、y (TCIT, Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of
20、the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T).This Standard supersedes CAN/CSA-ISO/IEC 10021-2-94 (adoption of ISO/IEC 10021-2:1990).This International Standard was reviewed by the CSA TCIT under the j
21、urisdiction of the Strategic Steering Committee on Information Technology and deemed acceptable for use in Canada. (A committee membership list is available on request from the CSA Project Manager.) From time to time, ISO/IEC may publish addenda, corrigenda, etc. The CSA TCIT will review these docum
22、ents for approval and publication. For a listing, refer to the CSA Information Products catalogue or CSA Info Update or contact a CSA Sales representative. This Standard has been formally approved as a National Standard of Canada by the Standards Council of Canada.December 2004 Canadian Standards As
23、sociation 2004All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission ofthe publisher. ISO/IEC material is reprinted with permission. Where the words “this International Standard” appear in the text, they should be interpreted as “this N
24、ational Standard of Canada”.Inquiries regarding this National Standard of Canada should be addressed toCanadian Standards Association5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044www.csa.caReference numberISO/IEC 10021-2:2003(E)ISO/IEC 2003INTERNATIONAL
25、 STANDARD ISO/IEC10021-2Third edition2003-12-15Information technology Message Handling Systems (MHS): Overall Architecture Technologies de linformation Systmes de messagerie (MHS): Architecture globale ISO/IEC 10021-2:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance
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27、ng policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing.
28、Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 2003 All rights reserved. Unless otherwise specified, no part of this pu
29、blication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Ge
30、neva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org ii ISO/IEC 2003 All rights reservedISO/IEC 10021-2:2003(E) ISO/IEC 2003 All rights reserved iiiCONTENTS Page SECTION 1 INTRODUCTION 1 1 Scope 1 2 Normative references . 3 2.1 Open Systems Interconnection 3 2
31、.2 Directory Systems . 4 2.3 Message Handling Systems. 4 2.4 Country Codes. 5 2.5 Network Addresses . 5 2.6 Language Code . 5 2.7 Character Sets . 5 3 Definitions 5 3.1 Open Systems Interconnection 5 3.2 Directory Systems . 6 3.3 Message Handling Systems. 7 4 Abbreviations . 7 5 Conventions 7 5.1 AS
32、N.1 7 5.2 Grade. 7 5.3 Terms 7 SECTION 2 ABSTRACT MODELS . 8 6 Overview 8 7 Functional Model . 8 7.1 Primary Functional Objects. 8 7.1.1 The Message Handling System. 9 7.1.2 Users . 9 7.1.3 Distribution Lists. 9 7.2 Secondary Functional Objects. 9 7.2.1 The Message Transfer System 10 7.2.2 User Agen
33、ts. 10 7.2.3 Message Stores 10 7.2.4 Access Units 10 7.3 Tertiary Functional Objects. 11 7.3.1 Message Transfer Agents 11 7.4 Selected AU Types 11 7.4.1 Physical Delivery 11 7.4.2 Telematic. 11 7.4.3 Telex . 12 8 Information Model . 12 8.1 Messages . 12 8.2 Probes 13 8.3 Reports 13 9 Operational Mod
34、el 13 9.1 Transmittal 13 9.2 Transmittal Roles 14 9.3 Transmittal Steps. 15 9.3.1 Origination 15 9.3.2 Submission 16 9.3.3 Import 16 9.3.4 Transfer. 16 9.3.5 Export 16 9.3.6 Delivery. 16 9.3.7 Retrieval 16 9.3.8 Receipt 17 ISO/IEC 10021-2:2003(E) iv ISO/IEC 2003 All rights reservedPage 9.4 Transmitt
35、al Events 17 9.4.1 Splitting. 17 9.4.2 Joining. 17 9.4.3 Name Resolution. 18 9.4.4 DL Expansion . 18 9.4.5 Redirection 18 9.4.6 Conversion 18 9.4.7 Non-delivery . 18 9.4.8 Non-affirmation 18 9.4.9 Affirmation . 18 9.4.10 Routing 19 10 Security Model . 19 10.1 Security Policies 19 10.2 Security Servi
36、ces. 19 10.2.1 Origin Authentication Security Services. 20 10.2.2 Secure Access Management Security Service. 21 10.2.3 Data Confidentiality Security Services . 21 10.2.4 Data Integrity Security Services 22 10.2.5 Non-Repudiation Security Services 23 10.2.6 Message Security Labelling Security Service
37、. 23 10.2.7 Security Management Services . 23 10.3 Security Elements 24 10.3.1 Authentication Security Elements. 24 10.3.2 Secure Access Management Security Elements 25 10.3.3 Data Confidentiality Security Elements 26 10.3.4 Data Integrity Security Elements 26 10.3.5 Non-repudiation Security Element
38、s 27 10.3.6 Security Label Security Elements . 27 10.3.7 Security Management Security Elements 27 10.3.8 Double Enveloping Technique 27 10.3.9 Encoding for Encryption and Hashing 27 SECTION 3 CONFIGURATIONS . 27 11 Overview 27 12 Functional Configurations 28 12.1 Regarding the Directory 28 12.2 Rega
39、rding the Message Store 28 13 Physical Configurations 28 13.1 Messaging Systems . 29 13.1.1 Access Systems. 30 13.1.2 Storage Systems 30 13.1.3 Access and Storage Systems . 30 13.1.4 Transfer Systems. 30 13.1.5 Access and Transfer Systems 30 13.1.6 Storage and Transfer Systems. 30 13.1.7 Access, Sto
40、rage, and Transfer Systems. 30 13.2 Representative Configurations 30 13.2.1 Fully Centralized. 30 13.2.2 Centralized Message Transfer and Storage. 31 13.2.3 Centralized Message Transfer. 31 13.2.4 Fully Distributed . 31 14 Organizational Configurations . 31 14.1 Management Domains 31 14.1.1 Administ
41、ration Management Domains . 32 14.1.2 Private Management Domains 32 14.2 Representative Configurations 32 14.2.1 Fully Centralized. 32 14.2.2 Directly Connected . 32 14.2.3 Indirectly Connected . 32 ISO/IEC 10021-2:2003(E) ISO/IEC 2003 All rights reserved vPage 15 The Global MHS 32 SECTION 4 NAMING,
42、 ADDRESSING, AND ROUTING. 33 16 Overview 33 17 Naming. 34 17.1 Directory Names . 34 17.2 OR-Names. 34 18 Addressing 34 18.1 Attribute Lists . 35 18.2 Character Sets . 35 18.3 Standard Attributes 36 18.3.1 Administration-domain-name . 37 18.3.2 Common-name 37 18.3.3 Country-name 37 18.3.4 Extension-p
43、ostal-OR-address-components . 38 18.3.5 Extension-physical-delivery-address-components 38 18.3.6 Local-postal-attributes. 38 18.3.7 Network-address . 38 18.3.8 Numeric-user-identifier. 38 18.3.9 Organization-name 38 18.3.10 Organizational-unit-names 39 18.3.11 Pds-name 39 18.3.12 Personal-name. 39 1
44、8.3.13 Physical-delivery-country-name . 39 18.3.14 Physical-delivery-office-name 39 18.3.15 Physical-delivery-office-number. 39 18.3.16 Physical-delivery-organization-name 39 18.3.17 Physical-delivery-personal-name 39 18.3.18 Post-office-box-address. 40 18.3.19 Postal-code 40 18.3.20 Poste-restante-
45、address. 40 18.3.21 Private-domain-name 40 18.3.22 Street-address 40 18.3.23 Terminal-identifier 40 18.3.24 Terminal-type 40 18.3.25 Unformatted-postal-address 40 18.3.26 Unique-postal-name 41 18.4 Attribute List Equivalence 41 18.5 OR-Address Forms 41 18.5.1 Mnemonic OR-Address 42 18.5.2 Numeric OR
46、-Address 42 18.5.3 Postal OR-Address 43 18.5.4 Terminal OR-Address . 43 18.5.5 Determination of Address Forms 44 18.6 Conditional Attributes. 44 19 Routing. 44 SECTION 5 USE OF THE DIRECTORY . 45 20 Overview 45 21 Authentication 45 22 Name Resolution 46 23 DL Expansion. 46 24 Capability Assessment .
47、 46 SECTION 6 OSI REALIZATION 47 25 Overview 47 ISO/IEC 10021-2:2003(E) vi ISO/IEC 2003 All rights reservedPage 26 Application Service Elements 47 26.1 The ASE Concept 47 26.2 Symmetric and Asymmetric ASEs 48 26.3 Message Handling ASEs. 49 26.3.1 Message Transfer 49 26.3.2 Message Submission . 49 26
48、.3.3 Message Delivery 49 26.3.4 Message Retrieval. 49 26.3.5 Message Administration 50 26.4 Supporting ASEs. 50 26.4.1 Remote Operations 50 26.4.2 Reliable Transfer. 50 26.4.3 Association Control. 50 27 Application Contexts 50 SECTION 7 ABSTRACT SERVICE DEFINITION CONVENTIONS 51 28 Overview 51 29 Co
49、mponents of the Abstract Model 51 29.1 Abstract Objects 51 29.2 Abstract Contracts. 51 29.3 Connection Packages 52 29.4 Abstract Ports 52 29.5 Abstract Operations and Abstract Errors. 52 30 ROS Realization. 52 Annex A Directory Object Classes and Attributes 54 A.1 Object Classes. 54 A.1.1 MHS Distribution List. 54 A.1.2 MHS Message Store 54 A.1.3 MHS Message Transfer Agent 54 A.1.4 MHS User . 55 A.1.5 MHS User Agent. 55 A.2 Attributes. 55 A.2.1 MHS Acceptable EITs 55 A.2.2 MHS Deliverable Cl
