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1、 Reference number ISO 17090-3:2008(E) ISO 2008 INTERNATIONAL STANDARD ISO 17090-3 First edition 2008-02-15 Health informatics Public key infrastructure Part 3: Policy management of certification authority Informatique de sant Infrastructure de cl publique Partie 3: Gestion politique dautorit de cert
2、ification Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:44:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 17090-3:2008(E) PDF disclaimer This PDF file may c
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6、l rights reserved. Unless otherwise specified, no part of this publication 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
7、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 copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2008 All rights reserved Copyright International Organization for Standardization Provided by IHS under licens
8、e with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:44:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 17090-3:2008(E) ISO 2008 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references. 1 3 Terms and defin
9、itions. 1 4 Abbreviations 2 5 Requirements for digital certificate policy management in a healthcare context . 2 5.1 General. 2 5.2 Need for a high level of assurance . 2 5.3 Need for a high level of infrastructure availability 3 5.4 Need for a high level of trust . 3 5.5 Need for Internet compatibi
10、lity 3 5.6 Need to facilitate evaluation and comparison of CPs. 3 6 Structure of healthcare CPs and healthcare CPSs . 3 6.1 General requirements for CPs. 3 6.2 General requirements for CPSs 4 6.3 Relationship between a CP and a CPS. 5 6.4 Applicability. 5 7 Minimum requirements for a healthcare CP 5
11、 7.1 General requirements. 5 7.2 Publication and repository responsibilities. 5 7.3 Identification and authentication 6 7.4 Certificate life-cycle operational requirements . 10 7.5 Physical controls 19 7.6 Technical security controls . 20 7.7 Certificate, CRL and OCSP profiles 25 7.8 Compliance audi
12、t 25 7.9 Other business and legal matters. 27 8 Model PKI disclosure statement . 33 8.1 Introduction. 33 8.2 Structure of PKI disclosure statement . 33 Bibliography. 35 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not f
13、or Resale, 07/25/2008 03:44:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 17090-3:2008(E) iv ISO 2008 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). T
14、he 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-go
15、vernmental, 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
16、 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a v
17、ote. 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. ISO 17090-3 was prepared by Technical Committee ISO/TC 215, Health informatics. This first editi
18、on cancels and replaces the Technical Specification (ISO/TS 17090-3:2002), which has been revised and brought to the status of International Standard. ISO 17090 consists of the following parts, under the general title Health informatics Public key infrastructure: Part 1: Overview of digital certific
19、ate services Part 2: Certificate profile Part 3: Policy management of certification authority Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:44:21 MDTNo reproduction or networking permitted w
20、ithout license from IHS -,-,- ISO 17090-3:2008(E) ISO 2008 All rights reserved v Introduction The healthcare industry is faced with the challenge of reducing costs by moving from paper-based processes to automated electronic processes. New models of healthcare delivery are emphasizing the need for p
21、atient information to be shared among a growing number of specialist healthcare providers and across traditional organizational boundaries. Healthcare information concerning individual citizens is commonly interchanged by means of electronic mail, remote database access, electronic data interchange
22、and other applications. The Internet provides a highly cost-effective and accessible means of interchanging information, but it is also an insecure vehicle that demands additional measures be taken to maintain the privacy and confidentiality of information. Threats to the security of health informat
23、ion through unauthorized access (either inadvertent or deliberate) are increasing. It is essential to have available to the healthcare system reliable information security services that minimize the risk of unauthorized access. How does the healthcare industry provide appropriate protection for the
24、data conveyed across the Internet in a practical, cost-effective way? Public key infrastructure (PKI) and digital certificate technology seek to address this challenge. The proper deployment of digital certificates requires a blend of technology, policy and administrative processes that enable the e
25、xchange of sensitive data in an unsecured environment by the use of “public key cryptography” to protect information in transit and “certificates” to confirm the identity of a person or entity. In healthcare environments, this technology uses authentication, encipherment and digital signatures to fa
26、cilitate confidential access to, and movement of, individual health records to meet both clinical and administrative needs. The services offered by the deployment of digital certificates (including encipherment, information integrity and digital signatures) are able to address many of these security
27、 issues. This is especially the case if digital certificates are used in conjunction with an accredited information security standard. Many individual organizations around the world have started to use digital certificates for this purpose. Interoperability of digital certificate technology and supp
28、orting policies, procedures and practices is of fundamental importance if information is to be exchanged between organizations and between jurisdictions in support of healthcare applications (for example between a hospital and a community physician working with the same patient). Achieving interoper
29、ability between different digital certificate implementations requires the establishment of a framework of trust, under which parties responsible for protecting an individuals information rights may rely on the policies and practices and, by extension, the validity of digital certificates issued by
30、other established authorities. Many countries are deploying digital certificates to support secure communications within their national boundaries. Inconsistencies will arise in policies and procedures between the certification authorities (CAs) and the registration authorities (RAs) of different co
31、untries if standards development activity is restricted to within national boundaries. Digital certificate technology is still evolving in certain aspects that are not specific to healthcare. Important standardization efforts and, in some cases, supporting legislation are ongoing. On the other hand,
32、 healthcare providers in many countries are already using or planning to use digital certificates. ISO 17090 seeks to address the need for guidance of these rapid international developments. ISO 17090 describes the common technical, operational and policy requirements that need to be addressed to en
33、able digital certificates to be used in protecting the exchange of healthcare information within a single domain, between domains and across jurisdictional boundaries. Its purpose is to create a platform for global interoperability. It specifically supports digital certificate-enabled communication
34、across borders, but could also provide guidance for the national or regional deployment of digital certificates in healthcare. The Internet Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:44:2
35、1 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 17090-3:2008(E) vi ISO 2008 All rights reserved is increasingly used as the vehicle of choice to support the movement of healthcare data between healthcare organizations and is the only realistic choice for cross-border
36、communication in this sector. ISO 17090 should be approached as a whole, with the three parts all making a contribution to defining how digital certificates can be used to provide security services in the health industry, including authentication, confidentiality, data integrity and the technical ca
37、pacity to support the quality of digital signature. ISO 17090-1 defines the basic concepts underlying the use of digital certificates in healthcare and provides a scheme of interoperability requirements to establish digital certificate-enabled secure communication of health information. ISO 17090-2
38、provides healthcare-specific profiles of digital certificates based on the international standard X.509 and the profile of this, specified in IETF/RFC 3280 for different types of certificates. This part of ISO 17909 deals with management issues involved in implementing and using digital certificates
39、 in healthcare. It defines a structure and minimum requirements for certificate policies (CPs) and a structure for associated certification practice statements. This part of ISO 17090 is based on the recommendations of the informational IETF/RFC 3647, and identifies the principles needed in a health
40、care security policy for cross border communication. It also defines the minimum levels of security required, concentrating on the aspects unique to healthcare. Comments on the content of this document, as well as comments, suggestions and information on the application of these standards, may be fo
41、rwarded to the ISO/TC 215 secretariat at adickersonhimss.org or WG4 convenor, Ross Fraser, and WG4 secretariat at w4consecmedis.or.jp. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:44:21 MDT
42、No reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 17090-3:2008(E) ISO 2008 All rights reserved 1 Health informatics Public key infrastructure Part 3: Policy management of certification authority 1 Scope This part of ISO 17090 gives guidelines for certi
43、ficate management issues involved in deploying digital certificates in healthcare. It specifies a structure and minimum requirements for certificate policies, as well as a structure for associated certification practice statements. This part of ISO 17090 also identifies the principles needed in a he
44、althcare security policy for cross-border communication and defines the minimum levels of security required, concentrating on aspects unique to healthcare. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the
45、 edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 17090-1:2008, Health informatics Public key infrastructure Part 1: Overview of digital certificate services ISO 17090-2:2008, Health informatics Public key infrastruc
46、ture Part 2: Certificate profile ISO/IEC 27002, Information technology Security techniques Code of practice for information security management IETF/RFC 3647, Internet X.509 Public Key Infrastructure Certificate Policy and Certification Practices Framework IETF/RFC 4211, Internet X.509 Public Key In
47、frastructure Certificate Request Message Format (CRMF) 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 17090-1 apply. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not fo
48、r Resale, 07/25/2008 03:44:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 17090-3:2008(E) 2 ISO 2008 All rights reserved 4 Abbreviations AA attribute authority CA certification authority CP certificate policy CPS certification practice statement CRL certificate revocation list OID object identifier PKC public key certificate PKI public key infrastructure RA registration authority TTP trusted third party 5 Requirements for digital certificate policy management in a heal