1、 National Standard of CanadaCAN/CSA-ISO/IEC 8649:02(ISO/IEC 8649:1996)International Standard ISO/IEC 8649:1996 (second edition, 1996-10-15), has been adopted withoutmodification (IDT) as CSA Standard CAN/CSA-ISO/IEC 8649:02, which has been approved as a NationalStandard of Canada by the Standards Co
2、uncil of Canada.ISBN 1-55324-426-5 February 2002Reference numberISO/IEC 8649:1996(E)The Canadian Standards Association (CSA), The Standards Council of Canada is theunder whose auspices this National Standard has been coordinating body of the National Standards system, produced, was chartered in 1919
3、 and accredited by a federation of independent, autonomousthe Standards Council of Canada to the National organizations working towards the furtherStandards system in 1973. It is a not-for-profit, development and improvement of voluntarynonstatutory, voluntary membership association standardization
4、in the national interest.engaged in standards development and certification The principal objects of the Council are to foster activities. and promote voluntary standardization as a means CSA standards reflect a national consensus of of advancing the national economy, benefiting theproducers and use
5、rs including manufacturers, health, safety, and welfare of the public, assisting consumers, retailers, unions and professional and protecting the consumer, facilitating domestic organizations, and governmental agencies. The and international trade, and furthering internationalstandards are used wide
6、ly by industry and commerce cooperation in the field of standards.and often adopted by municipal, provincial, and A National Standard of Canada is a standard whichfederal governments in their regulations, particularly in has been approved by the Standards Council ofthe fields of health, safety, buil
7、ding and construction, Canada and one which reflects a reasonableand the environment. agreement among the views of a number of capableIndividuals, companies, and associations across individuals whose collective interests provide to theCanada indicate their support for CSAs standards greatest practic
8、able extent a balance ofdevelopment by volunteering their time and skills to representation of producers, users, consumers, andCSA Committee work and supporting the Associations others with relevant interests, as may be appropriateobjectives through sustaining memberships. The more to the subject in
9、 hand. It normally is a standardthan 7000 committee volunteers and the 2000 which is capable of making a significant and timelysustaining memberships together form CSAs total contribution to the national interest.membership from which its Directors are chosen. Approval of a standard as a National St
10、andard ofSustaining memberships represent a major source of Canada indicates that a standard conforms to theincome for CSAs standards development activities. criteria and procedures established by the StandardsThe Association offers certification and testing Council of Canada. Approval does not refe
11、r to theservices in support of and as an extension to its technical content of the standard; this remains thestandards development activities. To ensure the continuing responsibility of the accreditedintegrity of its certification process, the Association standards-development organization.regularly
12、 and continually audits and inspects products Those who have a need to apply standards arethat bear the CSA Mark. encouraged to use National Standards of CanadaIn addition to its head office and laboratory complex whenever practicable. These standards are subject in Toronto, CSA has regional branch
13、offices in major to periodic review; therefore, users are cautioned centres across Canada and inspection and testing to obtain the latest edition from the organizationagencies in eight countries. Since 1919, the preparing the standard.Association has developed the necessary expertise to The responsi
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15、services through the use of Ottawa, Ontario, K1P 6N7standards, certification and related services to meet Canadanational and international needs.For further information on CSA services, write toCanadian Standards Association178 Rexdale BoulevardToronto, Ontario, M9W 1R3CanadaLes normes nationales du
16、 Canada sont publies en versions franaise et anglaise.Although the intended primary application of this Standard is stated in its Scope, it is importantto note that it remains the responsibility of the users to judge its suitability for their particular purpose.Registered trade-mark of Canadian Stan
17、dards AssociationInformation technology Open Systems Interconnection CAN/CSA-ISO/IEC 8649:02 Service definition for the Association Control Service ElementFebruary 2002 Canadian Standards Association CSA/1CAN/CSA-ISO/IEC 8649:02Information technology OpenSystems Interconnection Servicedefinition for
18、 the AssociationControl Service ElementCSA PrefaceStandards development within the Information Technology sector is harmonized with internationalstandards development. Through the CSA Technical Committee on Information Technology (TCIT),Canadians serve as the Canadian Advisory Committee (CAC) on ISO
19、/IEC Joint Technical Committee 1 onInformation Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO memberbody for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of theInternational Telecommunication Union (ITU), Canada participates in the
20、 International Telegraph andTelephone Consultative Committee (ITU-T).This International Standard was reviewed by the CSA TCIT under the jurisdiction of the StrategicSteering Committee on Information Technology and deemed acceptable for use in Canada. (Acommittee membership list is available on reque
21、st from the CSA Project Manager.) From time to time,ISO/IEC may publish addenda, corrigenda, etc. The CSA TCIT will review these documents for approvaland publication. For a listing, refer to the CSA Information Products catalogue or CSA Info Update orcontact a CSA Sales representative. This Standar
22、d has been formally approved, without modification, bythese Committees and has been approved as a National Standard of Canada by the Standards Council ofCanada.February 2002 Canadian Standards Association 2002All rights reserved. No part of this publication may be reproduced in any form whatsoever w
23、ithout the priorpermission of the publisher. ISO/IEC material is reprinted with permission. Where the words “this InternationalStandard” appear in the text, they should be interpreted as “this National Standard of Canada”. Inquiries regarding this National Standard of Canada should be addressed to C
24、anadian Standards Association 178 Rexdale Boulevard, Toronto, Ontario, Canada M9W 1R31-800-463-6727 416-747-4044www.csa.caINTERNATIONAL STANDARD lSO/IEC 8649 Second edition 1996-l O-l 5 Information technology - Open Systems Interconnection - Service definition for the Association Control Service Ele
25、ment Technologies de Iinforma tion - In terconnexion de syst under different managements; of different levels of complexity; and the - of different technologies. This Service Definition recognizes that application-processes may wish to communicate with each other for a wide variety of reasons. Howev
26、er, any communication will require the performance of certain services independent of the reasons for communication. The application-service-element defined herein provides such services. This Service Definition defines services provided by the application-service-element for application-association
27、 control: the Association Control Service Element (ACSE). The ACSE provides basic facilities for the control of an application association between two application-entities. The ACSE includes two optional functional units. One functional unit supports the exchange of information in support of authent
28、ication during association establishment. The second functional unit supports the negotiation of application context during association establishment. The ACSE services apply to a wide range of application-process communications. The ACSE services apply to a wide range of application-process communi
29、cation requirements. It is recognized that, with respect to ACSE Quality of Services (QOS) described in clause 9, work is still in progress to provide an integrated treatment of QOS across all layers of the OS1 Reference Model, and to ensure that the individual treatments in each layer service satis
30、fy overall QOS objectives in a consistent manner. As a consequence, an addendum may be added to this Service Definition at a later time which reflects further QOS developments and integration. This page intentionally left blank ISO/IEC 8649 : 1996 (E) INTERNATIONAL STANDARD IT b) application-functio
31、n; C) application Layer; d) application-process; e) application-protocol-control-information; f) application-protocol-data-unit; g) application-service-element; h) connectionless-mode presentation-service; 0 (N)-connectionless-mode transmission; j) (N)-function; k) presentation-connection; 1) presen
32、tation-service; m) session-connection; n) session-protocol; and 0) session-service. 2 IT b) password; and c) peer-entity authentication. 3.1.3 Naming and addressing definitions This Service Definition makes use of the following terms defined in CCITT Rec. X.650 I IS0 7498-3: a) application-process t
33、itle; b) application-entity qualifier; C) application-entity title; l) d) application-process invocation-identifier; e) application-entity invocation-identifier; and f) presentation address. 32 . Service conventions definitions This Service Definition makes use of the following terms defined in ITU-
34、T Rec. X.2 10 I ISO/IEC/lO73 1: a) service-provider; b) service-user; Cl confirmed service; d) non-confirmed service; e) provider-initiated service; f) primitive; g) request (primitive); h) indication (primitive); 0 response (primitive); and j) confirm (primitive). 33 . Presentation service definiti
35、ons This Service Definition makes use of the following terms defined in ITU-T Rec. X.216 I ISO/IEC 8822: a) abstract syntax; b) abstract syntax name; C) connectionless-mode (presentation); d) default context; e) defined context set; f) functional unit (presentation); g) normal mode (presentation); h
36、) presentation context; 0 presentation data value; and j) X.4 lo- 1984 mode (presentation). I) As defined in CCITT Rec. X.650 I IS0 7498-3, an application-entity title is composed of an application-process title and an application-entity qualifier. The ACSE service provides for the transfer of an ap
37、plication-entity title value by the transfer of its component values. ITU-T Rec. X.217 (1995 E) 3 ISO/IEC 8649 : 1996 (E) 34 . Application Layer Structure definitions This Service Definition makes use of the following terms defined in ISO/IEC 9545: a application-context; b) application-entity invoca
38、tion; C) d) control function; and application-service object. 35 . ACSE service definitions For the purposes of this Service Definition, the following definitions apply: 3.5.1 application-association; association: A cooperative relationship among application-entity invocations which enables the comm
39、unication of information and the coordination of their joint operation for an instance of communication. This relationship may be formed by the transfer of application-protocol-control-information using the presentation service. 3.5.2 Association Control Service Element: The particular application-s
40、ervice-element defined in this Service Definition. 3.5.3 ACSE service-user: The part of the application-entity that makes use of ACSE services. 3.5.4 ACSE service-provider: An abstraction of the totality of those entities which provide ACSE services to peer ACSE service-users. 3.5.5 requestor: The A
41、CSE service-user that issues the request primitive for a particular ACSE service. For a confirmed service, it also receives the confirm primitive. 3.5.6 acceptor: The ACSE service-user that receives the indication primitive for a particular ACSE service. For a confirmed service, it also issues the r
42、esponse primitive. 3.5.7 association-initiator: The ACSE service-user that initiates a particular association, i.e. the requestor of the A-ASSOCIATE service that establishes the association. 3.5.8 association-responder: The ACSE service-user that is not the initiator of a particular association, i.e
43、. the acceptor of the A-ASSOCIATE service that establishes the association. 3.5.9 authentication: The corroboration of the identity of objects relevant to the establishment of an association. For example, these can include the AEs, APs, and the human users of applications. NOTE - This term has been
44、defined to make it clear that a wider scope of authentication is being addressed than is covered by peer-entity authentication in CCITI Rec. X.800 I IS0 7498-2. 3.5.10 authentication-function: An application-function within an exchanges authentication-values with a peer authentication-function. appl
45、ication-enti .tY invocation that processes and 3.5.11 authentication-value: The output from an authentication-function to be transferred to a peer ACSE service- user for input to the peers authentication-function. 3.5.12 authentication-mechanism: The specification processing, and transferring authen
46、tication-values. of a specific set of authentication-function rules for defining, 3.5.13 normal mode: The mode of ACSE operation that results in the transfer of ACSE semantics, using the presentation-service. 3.5.14 X.410-1984 mode: The mode of ACSE operation that allows ACSE service-users to interw
47、ork using the protocol specified in Recommendation X.410, 1984 version. The use of this mode results in no transfer of ACSE semantics. 3.5.15 disrupt: A service procedure is disrupted by another service procedure if the second service results in service primitives not being used as specified for the
48、 procedure of the first service. 4 Abbreviations For the purposes of this Recommendation I International Standard, the following abbreviations apply: ACSE Association Control Service Element AE application-entity 4 IT the authentication-value is an APDU of the ASE. 6.2.2 ACSE authentication faciliti
49、es The ACSE Kernel functional unit does not support authentication. However, AP Title, AE Qualifier, AP invocation- identifier and AE invocation-identifier values are optionally transferred during the establishment of an association. They may be used to identify the calling, called and responding AEIs. 6 ITU-T Rec. X.217 (1995 E) ISO/IEC8649:1996(E) The ACSE Authentication functional unit supports the transfer of authentication-values as part of the A-ASSOCIATE service. An authentication-value is treated as an atomic item by ACSE. Its semantics are transparent to
