Health informatics - Privilege management and access control - Part 2: Formal models (ISO 22600-2:2014)

The distributed architecture of shared care information systems is increasingly based on networks. For meeting the interoperability challenge, the use of standardised user interfaces, tools and protocols, and therefore their platform independence, the number of really open information systems based on corporate networks, virtual private networks has been rapidly growing during the last couple of years.
This multi part International Standard shall define privilege management and access control services required for communication and use of distributed health information across policy domain boundaries. The document introduces principles and specifies services needed for managing privileges and access control. It specifies the necessary component based concepts and is intended to support their technical implementation. It will not specify the use of these concepts in particular clinical process pathways.
This International Standard is strongly related to other ISO/TC 215 work such as ISO 17090 “Health Informatics – Public Key Infrastructure”, ISO 22857 “Health Informatics – Guidelines on data protection to facilitate trans-border flows of personal health information” and ISO 21091 ”Health informatics - Directory services for security, communications and identification of professional and patient”. It is also related to ISO/TS 21298 “Health informatics – Functional and structural roles”.
This International Standard is intended to support the needs of healthcare information sharing across unaffiliated providers of healthcare, healthcare organisations, health insurance companies, their patients, staff members and trading partners.
This International Standard is intended to support inquiries from both individuals and application systems.
This multi part International Standard defines methods for managing authorization and access control to data and/or functions. It is allowing policy bridging. It is based on a conceptual model where local authorization manager servers and a cross border directory server can assist access control in various applications (software components). This directory server provides information on rules for access to various application functions based on roles and other attributes of the individual user. The granted access will be based on following aspects:
 The authenticated identification of the user
 The rules for access to a specific information object including purpose of use
 The rules regarding authorization attributes linked to the user provided by the authorization manager
 The functions of the specific application
This International Standard should be used in a perspective ranging from a local situation to a regional or national. One of the key points in these perspectives is to have organisational criteria combined with authorization profiles agreed upon from both the requesting and delivering side in a written policy agreement.
The International Standard supports collaboration between several authorization managers that may operate over organisational and policy borders.
The collaboration is defined in a Policy Agreement, signed by all involved organisations, which constitute the set of rules for the operation.
This International Standard excludes platform-specific and implementation details. It does not specify technical communication services and protocols that have been established in other standards. It also excludes authentication techniques.
This Part 2 of the Standard introduces the underlying paradigm of formal high level models for architectural components based on ISO/IEC 10746 “Information technology – Open Distributed Processing – Reference Model”. In that context, the Domain Model, the Document Model, the Policy Model, the Role Model, the Authorization Model, the Delegation Model, the Control Model, and the Access Control Model are introduced. The specifications are provided using the meta-languages Unified Model Language.

Medizinische Informatik - Privilegienmanagement und Zugriffssteuerung - Teil 2: Formale Modelle (ISO 22600-2:2014)

Diese mehrteilige Internationale Norm legt Grundsätze fest und spezifiziert die für das Privilegienmanagement und die Zugriffssteuerung auf Daten und Funktionen erforderlichen Dienste.
Sie konzentriert sich auf die Kommunikation und Nutzung von gesundheitsbezogene Informationen, die über die Grenzen von Policy-Domains hinweg verteilt werden. Das umfasst die gemeinsame Nutzung von gesundheitsbezogenen Informationen durch nicht miteinander verbundene Anbieter und Organisationen des Gesundheitswesens, Krankenversicherungen, deren Patienten, Mitarbeiter und Handelspartner sowohl durch Einzelpersonen als auch durch Anwendungssysteme im Bereich von einer lokalen zu einer regionalen oder auch nationalen Situation.
Sie legt die erforderlichen komponentenbasierten Begriffe fest und soll deren technische Implementierung unterstützen. Sie legt jedoch nicht fest, wie diese Begriffe in speziellen klinischen Prozessabläufen zu verwenden sind.
Dieser Teil von ISO 22600 führt das zugrundeliegende Paradigma von formalen High-Level-Modellen für Architekturkomponenten ein. Es basiert auf ISO/IEC 10746 (alle Teile) und führt das Domainmodell, das Dokumentmodell, das Policy-Modell, das Rollenmodell, das Autorisierungsmodell, das Delegierungsmodell, das Steuerungsmodell und das Zugriffssteuerungsmodell ein.
Die Spezifikationen werden unter Verwendung der Metasprachen Unified Modelling Language (UML, ge: Ver-einheitlichte Modellierungssprache) und Extensible Markup Language (XML, ge: Erweiterbare Auszeich-nungssprache) angegeben. Zur Erläuterung der Grundsätze werden weitere Diagramme verwendet. Die ver-wendeten Attribute wurden auf das HL7-Referenzinformationsmodell (siehe ISO 21731:2006) und die HL7-Datentypdefinitionen referenziert.
Das Rollenmodell wird nur umrissartig und unter Verweisung auf ISO 21298 vorgestellt.

Informatique de santé - Gestion de privilèges et contrôle d'accès - Partie 2: Modèles formels (ISO 22600-2:2014)

L'ISO 22600 définit les principes de gestion des privilèges et de contrôle d'accès aux données et/ou aux fonctions et spécifie les services nécessaires à ces activités.
Elle se concentre sur la communication et l'utilisation des informations de santé distribuées au-delà des limites d'un domaine de politique. Cela inclut le partage d'informations de santé entre professionnels de santé non affiliés, établissements de santé, sociétés d'assurance-maladie, patients, membres du personnel et partenaires commerciaux, par des individus tout comme par des systèmes d'application utilisés dans un contexte local, voire régional ou même national.
Elle spécifie les concepts nécessaires pour chaque composante et est destinée à faciliter leur mise en oeuvre technique. Elle ne spécifiera pas l'utilisation de ces concepts pour des cheminements de processus cliniques particuliers.
L'ISO 22600-2:2014 constitue une introduction au paradigme sous-jacent de modèles formels de haut niveau pour les composantes architecturales. Elle est basée sur l'ISO/IEC 10746 (toutes les parties) et introduit le modèle de domaine, le modèle de document, le modèle de politique, le modèle de rôle, le modèle d'autorisation, le modèle de délégation, le modèle de contrôle et le modèle de contrôle d'accès.

Zdravstvena informatika - Upravljanje privilegijev in dostopovno krmiljenje - 2. del: Formalni modeli (ISO 22600-2:2014)

Porazdeljena arhitektura informacijskih sistemov v skupni rabi vedno bolj temelji na omrežjih. Za izboljšanje interoperabilnosti se v zadnjih nekaj letih hitro povečuje uporaba standardiziranih uporabniških vmesnikov, orodij in protokolov – in s tem povezana neodvisnost platforme – ter število odprtih informacijskih sistemov, ki temeljijo na poslovnih omrežjih in navideznih zasebnih omrežjih. Ta mednarodni standard v več delih določa storitve za upravljanje privilegijev in dostopovno krmiljenje, ki so potrebne za sporočanje in uporabo porazdeljenih zdravstvenih informacij prek političnih meja in meja domen. Dokument predstavlja načela in določa storitve, ki so potrebne za upravljanje privilegijev in dostopovno krmiljenje. Določa potrebne koncepte za komponente in je namenjen za podporo njihovi tehnični izvedbi. Ne določa uporabe teh konceptov na določenih poteh kliničnih postopkov. Ta mednarodni standard je močno povezan z drugimi dokumenti ISO/TC 215, kot so ISO 17090 »Zdravstvena informatika – Infrastruktura javnih ključev«, ISO 22857 »Zdravstvena informatika – Smernice za zaščito podatkov za omogočanje čezmejnega pretoka osebnih zdravstvenih informacij« in ISO 21091 »Zdravstvena informatika – Imeniške storitve za varnost, komunikacijo in identifikacijo zdravstvenega osebja in pacientov«. Povezan je tudi z dokumentom ISO/TS 21298 »Zdravstvena informatika – Funkcijske in strukturne vloge«. Namen tega mednarodnega standarda je podpora potrebam po skupni rabi zdravstvenih informacij med nepovezanimi izvajalci zdravstvenega varstva, zdravstvenimi organizacijami, podjetji, ki se ukvarjajo z zdravstvenim zavarovanjem, njihovimi pacienti, člani osebja in poslovnimi partnerji. Namen tega mednarodnega standarda je tudi podpora poizvedbam s strani posameznikov in sistemov uporabe. Ta mednarodni standard v več delih določa metode za upravljanje avtorizacije in dostopovno krmiljenje podatkov in/ali funkcij. Omogoča premostitev politike. Temelji na konceptualnem modelu, v katerem so lahko lokalni strežniki za upravljanje avtorizacije in čezmejni imeniški strežnik v pomoč pri dostopovnem krmiljenju v različnih aplikacijah (komponente programske opreme). Ta imeniški strežnik vsebuje informacije o pravilih za dostop do različnih funkcij aplikacij na podlagi vlog in drugih atributov posameznega uporabnika. Omogočen dostop bo temeljil na teh vidikih: overjeni identifikaciji uporabnika;  pravilih za dostop do določenega informacijskega objekta, vključno z namenom uporabe;  pravilih glede atributov za avtorizacijo, povezanih z uporabnikom, ki jih zagotovi upravitelj avtorizacije;  funkcijah določene aplikacije.  Ta mednarodni standard naj bi se uporabljal na lokalni, regionalni ali nacionalni ravni. Eden ključnih delov pri tem je združitev organizacijskih kriterijev s profili avtorizacije na podlagi pisnega sporazuma o politiki, ki ga skleneta obe udeleženi strani. Mednarodni standard podpira sodelovanje med upravitelji avtorizacije, ki lahko delujejo prek organizacijskih in političnih meja. Sodelovanje je določeno v sporazumu o politiki, ki ga podpišejo vse udeležene organizacije in vsebuje nabor pravil za delovanje. Ta mednarodni standard ne vključuje podrobnosti o platformi in izvedbi. Ne določa storitev za tehnično komunikacijo in protokolov, ki so bili vzpostavljeni v drugih standardih. Prav tako ne vključuje tehnik za overjanje. V tem 2. delu standarda je predstavljena temeljna paradigma formalnih modelov visoke ravni za arhitekturne komponente na podlagi standarda ISO/IEC 10746 »Informacijska tehnologija – Odprta porazdeljena obdelava – Referenčni model«. V tem kontekstu so predstavljeni naslednji modeli: model za domene, model za dokumente, model za politiko, model za vloge, model za avtorizacijo, model za delegiranje, model za nadzor in model za dostopovno krmiljenje. Specifikacije so podane s poenotenim jezikom modeliranja za metajezike.

General Information

Status
Published
Public Enquiry End Date
28-Feb-2013
Publication Date
07-Dec-2014
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
15-May-2014
Due Date
20-Jul-2014
Completion Date
08-Dec-2014

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SLOVENSKI STANDARD
SIST EN ISO 22600-2:2015
01-februar-2015
Zdravstvena informatika - Upravljanje privilegijev in dostopovno krmiljenje - 2. del:
Formalni modeli (ISO 22600-2:2014)
Health informatics - Privilege management and access control - Part 2: Formal models
(ISO 22600-2:2014)
Medizinische Informatik - Privilegienmanagement und Zugriffssteuerung - Teil 2: Formale
Modelle (ISO 22600-2:2014)
Informatique de santé - Gestion de privilèges et contrôle d'accès - Partie 2: Modèles
formels (ISO 22600-2:2014)
Ta slovenski standard je istoveten z: EN ISO 22600-2:2014
ICS:
35.240.80 Uporabniške rešitve IT v IT applications in health care
zdravstveni tehniki technology
SIST EN ISO 22600-2:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 22600-2:2015

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SIST EN ISO 22600-2:2015

EUROPEAN STANDARD
EN ISO 22600-2

NORME EUROPÉENNE

EUROPÄISCHE NORM
October 2014
ICS 35.240.80
English Version
Health informatics - Privilege management and access control -
Part 2: Formal models (ISO 22600-2:2014)
Informatique de santé - Gestion de privilèges et contrôle Medizinische Informatik - Privilegienmanagement und
d'accès - Partie 2: Modèles formels (ISO 22600-2:2014) Zugriffssteuerung - Teil 2: Formale Modelle (ISO 22600-
2:2014)
This European Standard was approved by CEN on 22 May 2014.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22600-2:2014 E
worldwide for CEN national Members.

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SIST EN ISO 22600-2:2015
EN ISO 22600-2:2014 (E)
Contents Page
Foreword .3
2

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SIST EN ISO 22600-2:2015
EN ISO 22600-2:2014 (E)
Foreword
This document (EN ISO 22600-2:2014) has been prepared by Technical Committee ISO/TC 215 "Health
informatics" in collaboration with Technical Committee CEN/TC 251 “Health informatics” the secretariat of
which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by April 2015, and conflicting national standards shall be withdrawn at the
latest by April 2015.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 22600-2:2014 has been approved by CEN as EN ISO 22600-2:2014 without any modification.

3

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SIST EN ISO 22600-2:2015

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SIST EN ISO 22600-2:2015
INTERNATIONAL ISO
STANDARD 22600-2
First edition
2014-10-01
Health informatics — Privilege
management and access control —
Part 2:
Formal models
Informatique de santé — Gestion de privilèges et contrôle d’accès —
Partie 2: Modèles formels
Reference number
ISO 22600-2:2014(E)
©
ISO 2014

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SIST EN ISO 22600-2:2015
ISO 22600-2:2014(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2014
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved

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SIST EN ISO 22600-2:2015
ISO 22600-2:2014(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 6
5 Component paradigm . 6
6 Generic models . 7
6.1 Framework . 7
6.2 Domain model . 9
6.3 Document model .10
6.4 Policy model .11
6.5 Role model .14
6.6 Authorization model — Role and privilege assignment .14
6.7 Control model .15
6.8 Delegation model .16
6.9 Access control model .18
Annex A (informative) Functional and structural roles .20
Bibliography .25
© ISO 2014 – All rights reserved iii

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SIST EN ISO 22600-2:2015
ISO 22600-2:2014(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 215, Health informatics.
This first edition of ISO 22600-2 cancels and replaces ISO/TS 22600-2:2006, which has been technically
revised.
ISO 22600 consists of the following parts, under the general title Health informatics — Privilege
management and access control:
— Part 1: Overview and policy management
— Part 2: Formal models
— Part 3: Implementations
iv © ISO 2014 – All rights reserved

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SIST EN ISO 22600-2:2015
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Introduction
The distributed architecture of shared care information systems supporting service-oriented
architecture (SOA) is increasingly based on corporate networks and virtual private networks. For
meeting the interoperability challenge, the use of standardized user interfaces, tools, and protocols,
which ensures platform independence, but also the number of really open information systems, is
rapidly growing during the last couple of years.
As a common situation today, hospitals are supported by several vendors providing different applications,
which are not able to communicate authentication and authorization since each has its own way of
handling these functions. For achieving an integrated scenario, it takes a remarkable amount of money,
time, and efforts to get users and changing organizational environments dynamically mapped before
starting communication and cooperation. Resources required for the development and maintenance
of security functions grow exponentially with the number of applications, with the complexity of
organizations towards a regional, national, or even international level, and with the flexibility of users
playing multiple roles, sometimes even simultaneously.
The situation becomes even more challenging when inter-organizational communications happens,
thereby crossing security policy domain boundaries. Moving from one healthcare centre to another or
from country to country, different rules for privileges and their management can apply to similar types
of users, both for execution of particular functions and for access to information. The policy differences
between these domains have to be bridged automatically or through policy agreements, defining sets of
rules followed by the parties involved, for achieving interoperability.
Another challenge to be met is how to improve the quality of care by using IT without infringing the
privacy of the patient. To provide physicians with adequate information about the patient, a virtual
electronic health care record is required which makes it possible to keep track of all the activities
belonging to one patient regardless of where and by whom they have been performed and documented.
In such an environment, a generic model or specific agreement between the parties for managing
privileges and access control including the patient or its representative is needed.
Besides a diversity of roles and responsibilities, typical for any type of large organization, also ethical
and legal aspects in the healthcare scenario due to the sensitivity of person-related health information
managed and its personal and social impact have to be considered.
Advanced solutions for privilege management and access control are required today already, but
this challenge will even grow over the next couple of years. The reason is the increase of information
exchanged between systems in order to fulfil the demands of health service providers at different care
levels for having access to more and more patient-related information to ensure the quality and efficiency
of patient’s diagnosis and treatment, however combined with increased security and privacy risks.
The implementation of this International Standard might be currently too advanced and therefore not
feasible in certain organizational and technical settings. For meeting the basic principle of best possible
action, it is therefore very important that at least a policy agreement is written between the parties
stating to progress towards this International Standard when any update/upgrade of the systems is
intended. The level of formalization and granularity of policies and the objects these policies are bound
to defines the solution maturity on a pathway towards the presented specification.
The policy agreement also has to contain defined differences in the security systems and agreed
solutions on how to overcome the differences. For example, the authentication service and privileges
of a requesting party at the responding site have to be managed according to the policy declared in
the agreement. For that reason, information and service requester, as well as information and service
provider on the one hand, and information and services requested and provided on the other hand, have
to be grouped and classified in a limited number of concepts for enabling the specification of a limited
number of solution categories. Based on that classification, claimant mechanisms, target sensitivity
mechanisms, and policy specification and management mechanisms can be implemented. Once all
parties have signed the policy agreement, the communication and information exchange can start with
the existing systems if the parties can accept the risks. If there are unacceptable risks which have to be
eliminated before the information exchange starts, they shall also be recorded in the policy agreement
© ISO 2014 – All rights reserved v

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SIST EN ISO 22600-2:2015
ISO 22600-2:2014(E)

together with an action plan stating how these risks shall be removed. The policy agreement also has to
contain a time plan for this work and an agreement on how it shall be financed.
The documentation of the negotiation process is very important and provides the platform for the policy
agreement.
Privilege management and access control address security and privacy services required for
communication and cooperation, i.e. distributed use of health information. It also implies safety aspects,
professional standards, and legal and ethical issues. This International Standard introduces principles
and specifies services needed for managing privileges and access control. Cryptographic protocols are
out of the scope of this International Standard.
This three-part International Standard references existing architectural and security standards as well
as specifications in the healthcare area such as ISO, CEN, ASTM, OMG, W3C, etc., and endorses existing
appropriate standards or identifies enhancements or modifications or the need for new standards. It
comprises of:
— ISO 22600-1: describes the scenarios and the critical parameters in information exchange across
policy domains. It also gives examples of necessary documentation methods as the basis for the
policy agreement.
— ISO 22600-2: describes and explains, in a more detailed manner, the architectures and underlying
models for privilege management and access control which are necessary for secure information
sharing including the formal representation of policies.
— ISO 22600-3: describes examples of implementable specifications of application security services
and infrastructural services using different specification languages.
It accommodates policy bridging. It is based on a conceptual model where local authorization servers and
cross border directory and policy repository services can assist access control in various applications
(software components). The policy repository provides information on rules for access to various
application functions based on roles and other attributes. The directory service enables identification
of the individual user. The granted access will be based on four aspects:
— the authenticated identification of principals (i.e. human users and objects that need to operate
under their own rights) involved;
— the rules for access to a specific information object including purpose of use;
— the rules regarding authorization attributes linked to the principal provided by the authorization
manager;
— the functions of the specific application
This International Standard supports collaboration between several authorization managers that can
operate over organizational and policy borders.
This International Standard is strongly related to other ISO/TC 215 work such as ISO 17090 (all parts),
ISO 22857, ISO 21091, and ISO 21298.
This International Standard is meant to be read in conjunction with its complete set of associated
standards.
vi © ISO 2014 – All rights reserved

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SIST EN ISO 22600-2:2015
INTERNATIONAL STANDARD ISO 22600-2:2014(E)
Health informatics — Privilege management and access
control —
Part 2:
Formal models
1 Scope
This multi-part International Standard defines principles and specifies services needed for managing
privileges and access control to data and/or functions.
It focuses on communication and use of health information distributed across policy domain boundaries.
This includes healthcare information sharing across unaffiliated providers of healthcare, healthcare
organizations, health insurance companies, their patients, staff members, and trading partners by
both individuals and application systems ranging from a local situation to a regional or even national
situation.
It specifies the necessary component-based concepts and is intended to support their technical
implementation. It will not specify the use of these concepts in particular clinical process pathways.
This part of ISO 22600 introduces the underlying paradigm of formal high-level models for architectural
components. It is based on ISO/IEC 10746 (all parts) and introduces the domain model, the document
model, the policy model, the role model, the authorization model, the delegation model, the control
model, and the access control model.
The specifications are provided using the meta-languages Unified Modelling Language (UML) and
Extensible Markup Language (XML). Additional diagrams are used for explaining the principles. The
attributes used have been referenced to the HL7 reference information model (see ISO 21731:2006) and
the HL7 data type definitions.
The role model has been roughly introduced referring to ISO 21298.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
1)
ISO 21298:— , Health informatics — Functional and structural roles
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
access control
means of ensuring that the resources of a data processing system can be accessed only by authorized
entities in authorized ways
[SOURCE: ISO/IEC 2382-8:1998]
1) To be published.
© ISO 2014 – All rights reserved 1

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SIST EN ISO 22600-2:2015
ISO 22600-2:2014(E)

3.2
accountability
property that ensures that the actions of an entity can be traced uniquely to the entity
[SOURCE: ISO 7498-2:1989]
3.3
attribute authority
AA
authority which assigns privileges by issuing attribute certificates
[SOURCE: ISO/IEC 9594-8:2008]
3.4
attribute certificate
data structure, digitally signed by an attribute authority, that binds some attribute values with
identification about its holder
[SOURCE: ISO/IEC 9594-8:2008]
3.5
authentication
provision of assurance of the claimed identity of an entity by securely associating an identifier and its
authenticator
Note 1 to entry: See also data origin authentication and peer entity authentication.
[SOURCE: ISO/IEC 15944-5:2008, 3.5]
3.6
authority
entity, which is responsible for the issuance of certificates
Note 1 to entry: Two types are distinguished in this part of ISO 22600: certification authority which issues public
key certificates and attribute authority which issues attribute certificates.
3.7
authorization
granting of privileges, which includes the granting of privileges to access data and functions
[SOURCE: ISO 7498-2:1989, modified]
3.8
availability
property of being accessible and useable upon demand by an authorized entity
[SOURCE: ISO 7498-2:1989]
3.9
certificate validation
process of ensuring that a certificate was valid at a given time, including possibly the construction and
processing of a certification path, and ensuring that all certificates in that path were valid (i.e. were not
expired or revoked) at that given time
3.10
certification authority
CA
certificate issuer; an authority trusted by one or more relying parties to create, assign, and manage
certificates
Note 1 to entry: Optionally, the certification authority can create the relying parties’ keys. The CA issues
certificates by signing certificate data with its private signing key.
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Note 2 to entry: Authority in the CA term does not imply any government authorization, only that it is trusted.
Certificate issuer can be a better term but CA is used very broadly.
[SOURCE: ISO/IEC 9594-8:2008]
3.11
certification path
ordered sequence of certificates of objects in the DIT which, together with the public key of the initial
object in the path, can be processed to obtain that of the final object in the path
3.12
confidentiality
property that information is not made available or disclosed to unauthorized individuals, entities, or
processes
[SOURCE: ISO 7498-2:1989]
3.13
credential
prerequisite issued evidence for the entitlement of, or the eligibility for, a role
3.14
delegation
conveyance of privilege from one entity that holds such privilege to another entity
3.15
delegation path
ordered sequence of certificates which, together with authentication of a privilege asserter’s identity,
can be processed to verify the authenticity of a privilege asserter’s privilege
3.16
environmental variables
aspects of policy required for an authorization decision that are not contained within static structures,
but are available through some local means to a privilege verifier (e.g. time of day or current account
balance)
3.17
identification
performance of tests to enable a data processing system to recognize entities
[SOURCE: ISO/IEC 2382-8:1998]
3.18
identifier
piece of information used to claim an identity, before a potential corroboration by a corresponding
authenticator
[SOURCE: ENV 13608-1:2000]
3.19
integrity
property that information is not altered in any way, deliberately or accidentally
3.20
key
sequence of symbols that controls the operations of encipherment and decipherment
[SOURCE: ISO 7498-2:1989]
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3.21
non-repudiation
service providing proof of the integrity and origin of data (both in an unforgeable relationship) which
can be verified by any party
[SOURCE: ISO 17090-1:2013]
3.22
policy
set of legal, political, organizational, functional, and technical obligations for communication and
cooperation
3.23
policy agreement
written agreement where all involved parties commit themselves to a specified set of policies
3.24
principal
human users and objects that need to operate under their own rights
[SOURCE: OMG Security Services Specification: 2001]
3.25
private key
key that is used with an asymmetric cryptographic algorithm and whose possession is restricted
(usually to only one entity)
[SOURCE: ISO/IEC 10181-1:1996]
3.26
privilege
capacity assigned to an entity by an authority according to the entity’s attribute
3.27
privilege asserter
privilege holder using their attribute certificate or public key certificate to assert privilege
3.28
privilege management infrastructure
PMI
infrastructure able to support the management of privileges in support of a comprehensive authorization
service and in relationship with a public key infrastructure
3.29
privilege policy
policy that outlines conditions for privilege verifiers to provide/perform sensitive services to/for
qualified privilege asserters
Note 1 to entry: Privilege policy relates attributes associated with the service as well as attributes associated
with privilege asserters.
3.30
privilege verifier
entity verifying certificates against a privilege policy
3.31
public key
key that is used with an asymmetric cryptographic algorithm and that can be made publicly available
[SOURCE: ISO/IEC 10181-1:1996]
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3.32
public key certificate
PKC
certificate that binds an identity and a public key
[SOURCE: ISO/IEC 9594-8:2008]
Note 1 to entry: The identity can be used to support identity-based access control decisions after the client proves
that it has access to the private key that corresponds to the public key contained in the PKC (see RFC 2459).
3.33
role
set of competences and/or performances that are associated with a task
3.34
role assignment certificate
certificate that contains the role attribute, assigning one or more roles to the certificate holder
3.35
role certificate
certificate that assigns privileges to a role rather than directly to individuals
Note 1 to entry: Individuals assigned to that role, through an attribute certificate or public key certificate with
a subject directory attributes extension containing that assignment, are indirectly assigned the privileges
contained in the role certificate.
3.36
role specification certificate
certificate that contains the assignment of privileges to a role
3.37
sensitivity
characteristic of a resource that implies its value or importance
3.38
security
combination of availab
...

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