IEC IEC 62351-9 Edition 2.02023-06 INTERNATIONAL STANDARD NORME NTERNATIONALE colour inside Power systems management and associated information exchange - Data and communications security - Part 9: Cyber security key management for power system equipment Gestion des systemes de puissance et échanges d'informations associés - Sécurite des communications et des données Partie 9: Gestion de cle de cybersécurite des équipements de systeme de puissance IEC 62351-9:2023-06(en-fr THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright @ 2023 IEC, Geneva, Switzerland All 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 IEC or IEC's member National Committee in the country of the requester. If you have any questions about iEC copyright or have an enquiry about obtaining additional rights to this publication, piease contact the address below or your local IEC member National Committee for further information. Droits de reproduction reserves. Sauf indication contraire, aucune partie de cette publication ne peut etre reproduite ni utilisee sous quelque forme que ce soit et par aucun procéde, électronique ou mécanique, y compris la photocopie et les microfilms, sans I'accord écrit de I'lEc ou du Comite national de IIEc du pays du demandeur. Si vous avez des questions sur le copyright de I'EC ou si vous desirez obtenir des droits supplementaires sur cette publication, utilisez les coordonnées ci-apres ou contactez le Comite national de Il'lEC de votre pays de résidence. IEC Secretariat Tel.: +41 22 919 02 11 3, rue de Varembe [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland About the IEC International Standards forall electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition,a corrigendumoranamendment mighthavebeenpublished. IECpublications search-webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the variety of criteria (reference number,text, technical publications previews.Witha subscriptionyouwillalways have committee, ...). It also gives information on projects, replaced access to up to date contenttailored to yourneeds. and withdrawn publications. Electropedia-www.electropedia.org IEC Just Published - webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology, Stay up to date on all new IEC publications.Just Published containing more than 22 300 terminological entries in English details all new publications released.Available online and once and French, with equivalent terms in 19 additional languages. a month by email. Also known as the International Electrotechnical Vocabulary (IEV) online. IECCustomerServiceCentre-webstore.iec.ch/csc if you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre:[email protected] A propos de I'IEc La Commission Electrotechnique Internationale (lEC)est la premiere organisation mondiale qui elabore et publie des Normes internationales pour tout ce quia trait a I'electricite, a I'electronique et aux technologies apparentees. A propos des publications IEC Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez I'édition la plus recente, un corrigendum ou amendement peut avoir ete publie Decouvrez notre puissant moteur de recherche et consultez RecherchedepublicationsIEC webstore.iec.ch/advsearchform gratuitement touslesapercus des publications.Avecun La rechercheavancee permetdetrouverdespublications IEC abonnement, vous aurez toujours acces a un contenu a jour en utilisant differents criteres (num