{"id":11344,"date":"2022-11-23T01:36:36","date_gmt":"2022-11-23T08:36:36","guid":{"rendered":"https:\/\/csop.cirasync.com\/non-classifiee\/autorisation-basee-sur-certificat-avec-csop-ucm\/"},"modified":"2026-03-24T22:40:19","modified_gmt":"2026-03-25T03:40:19","slug":"autorisation-basee-sur-certificat-avec-csop-ucm","status":"publish","type":"post","link":"https:\/\/csop.cirasync.com\/fr\/assistance\/autorisation-basee-sur-certificat-avec-csop-ucm\/","title":{"rendered":"Autorisation bas\u00e9e sur certificat avec CiraSync On-Prem UCM"},"content":{"rendered":"

Aper\u00e7u : Autorisation bas\u00e9e sur un certificat<\/span><\/b>
\n<\/span><\/h2>\n

Il existe plusieurs fa\u00e7ons de s’authentifier par programmation avec Microsoft Azure. La m\u00e9thode la plus courante utilise un \u00ab\u00a0jeton d’acc\u00e8s\u00a0\u00bb (Access token) dans le cadre des techniques d’authentification modernes. Le jeton d’acc\u00e8s permet \u00e0 CiraSync On-Prem Unified Contact Manager (UCM) d’acc\u00e9der aux ressources Azure. Cependant, la dur\u00e9e de vie d’un \u00ab\u00a0jeton d’acc\u00e8s\u00a0\u00bb est de 90 jours (environ 3 mois) et doit \u00eatre renouvel\u00e9e r\u00e9guli\u00e8rement. Apr\u00e8s expiration, le jeton doit \u00eatre mis \u00e0 jour par une connexion interactive au portail Azure.<\/span> L’autorisation bas\u00e9e sur des certificats est une autre m\u00e9thode d’acc\u00e8s aux ressources Azure \u00e0 l’aide d’identit\u00e9s bas\u00e9es sur des certificats. Dans de nombreux cas, on le pr\u00e9f\u00e9rera \u00e0 l’authentification moderne. La justification principale est que l’authentification de base est obsol\u00e8te lors de la programmation de PowerShell. Ainsi, la seule option viable est l’authentification bas\u00e9e sur les certificats. M\u00eame lors de l’utilisation de l’API Microsoft Graph, il existe un avantage suppl\u00e9mentaire en ce sens que le \u00abjeton d’actualisation\u00bb (Refresh Token) ne n\u00e9cessite pas d’intervention humaine \u00e0 chaque fois qu’un jeton d’actualisation expire.<\/span><\/p>\n

Comment fonctionne l’authentification bas\u00e9e sur les certificats ?<\/span><\/b><\/h2>\n

Le certificat est g\u00e9n\u00e9ralement t\u00e9l\u00e9charg\u00e9 sur le portail Azure<\/a> et chaque fois que nous acc\u00e9dons \u00e0 la ressource Azure, nous utilisons le certificat pour g\u00e9n\u00e9rer un jeton d’acc\u00e8s. Ainsi, le certificat remplace le \u00ab\u00a0jeton d’actualisation\u00a0\u00bb (Refresh Token) dans le flux OAuth. Les \u00e9tapes suivantes d\u00e9crivent ce qui doit \u00eatre fait pour configurer l’autorisation bas\u00e9e sur un certificat :<\/span><\/p>\n

    \n
  1. Cr\u00e9ez votre certificat et pr\u00e9parez deux fichiers : un fichier certificat sans cl\u00e9 priv\u00e9e et le second avec une cl\u00e9 priv\u00e9e<\/span><\/li>\n
  2. Cr\u00e9ez une application sur le portail Azure dans votre tenant<\/span><\/li>\n
  3. Configurez votre application cr\u00e9\u00e9e comme suit :<\/span><\/li>\n<\/ol>\n
      \n
    • Attribuez des autorisations d’API permettant \u00e0 l’application d’acc\u00e9der aux ressources cibles<\/span><\/li>\n
    • Attribuez un certificat sans cl\u00e9 priv\u00e9e \u00e0 l’application cr\u00e9\u00e9e<\/span><\/li>\n
    • Cr\u00e9ez une entr\u00e9e Principal de service sur Azure Active Directory et attribuez cette entr\u00e9e \u00e0 l’application. Cette entr\u00e9e sera utilis\u00e9e comme utilisateur d’acc\u00e8s lors de la connexion aux ressources Azure via une autorisation bas\u00e9e sur un certificat<\/span><\/li>\n
    • Attribuez les autorisations n\u00e9cessaires \u00e0 l’entr\u00e9e Principal de service cr\u00e9\u00e9e<\/span><\/li>\n
    • Acceptez les autorisations d’administrateur pour l’application cr\u00e9\u00e9e<\/span><\/li>\n<\/ul>\n

      Une fois ces \u00e9tapes termin\u00e9es, nous pouvons utiliser l’authentification par certificat avec une cl\u00e9 priv\u00e9e pour obtenir un \u00ab\u00a0Jeton d’acc\u00e8s\u00a0\u00bb (Access Token) dans le flux OAuth.<\/span><\/p>\n

      Configuration avec itrezzo<\/span><\/b><\/h3>\n

      Cette section explique comment configurer l’autorisation bas\u00e9e sur un certificat avec l’application CiraSync On-Prem. Notez que toutes les m\u00e9thodes n\u00e9cessiteront un acc\u00e8s d’Administrateur G\u00e9n\u00e9ral dans le tenant d’Azure et les informations d’identification seront utilis\u00e9es uniquement pour un processus de configuration \u00e0 la fois. CiraSync On-Prem ne sauvegardera jamais ces informations.<\/span><\/p>\n

      Nomination des entr\u00e9es qui seront cr\u00e9\u00e9es par CiraSync On-Prem du c\u00f4t\u00e9 d’Azure :<\/span>
      \n<\/span><\/p>\n

      CiraSync On-Prem – autorisation bas\u00e9e sur un certificat – (<\/span><\/b>[CiraSync On-Prem service mailbox]<\/span>)<\/span><\/b><\/p>\n

      CiraSync On-Prem propose deux m\u00e9thodes pour configurer l’autorisation bas\u00e9e sur les certificats :<\/span><\/p>\n

        \n
      1. La m\u00e9thode automatique – cette m\u00e9thode permet aux utilisateurs de configurer toutes les \u00e9tapes n\u00e9cessaires avec une implication minimale de l’utilisateur. Cependant, cette m\u00e9thode n\u00e9cessite plus d’autorisations qui doivent \u00eatre accept\u00e9es depuis l’application itrezzo.<\/span><\/li>\n
      2. La m\u00e9thode manuelle – cette m\u00e9thode contr\u00f4le toutes les \u00e9tapes qui seront effectu\u00e9es au portail Azure et n\u00e9cessite moins d’autorisations, mais plus d’autorisations de la part de l’utilisateur final via le portail azur et les scripts PowerShell.<\/span><\/li>\n<\/ol>\n

        Autorisation bas\u00e9e sur certificat avec CiraSync On-Prem UCM : la m\u00e9thode automatique<\/span><\/b><\/h4>\n

        Cette m\u00e9thode n\u00e9cessite les autorisations suivantes :<\/span><\/p>\n

          \n
        1. \u00ab\u00a0Application.ReadWrite.All\u00a0\u00bb – requis pour cr\u00e9er des applications dans le tenant Azure<\/span><\/li>\n
        2. \u00ab\u00a0Directory.ReadWrite.All\u00a0\u00bb – requis pour cr\u00e9er un Service Principal Entry<\/span><\/li>\n
        3. \u00ab\u00a0Organization.ReadWrite.All\u00a0\u00bb – requis pour acc\u00e9der aux informations d’une organisation<\/span><\/li>\n
        4. \u00ab\u00a0RoleManagement.ReadWrite.Directory\u00a0\u00bb – requis pour cr\u00e9er des r\u00f4les pour le Service Principal<\/span><\/li>\n<\/ol>\n

          Toutes ces autorisations n\u00e9cessitent l’option \u00ab\u00a0Write\u00a0\u00bb qui permet \u00e0 CiraSync On-Prem de cr\u00e9er de nouvelles entr\u00e9es au sein du tenant Azure.<\/span><\/p>\n

          User flow (Flux d’utilisateurs)<\/span><\/b><\/h5>\n

          1. Cr\u00e9ez un certificat manuellement ou automatiquement avec itrezzo<\/span><\/p>\n

          \"Cr\u00e9er<\/span><\/p>\n

          2. S\u00e9lectionnez la m\u00e9thode de configuration automatique.<\/span><\/p>\n

          \"S\u00e9lection<\/span><\/p>\n

          3. Entrez vos informations d’identification d’administrateur g\u00e9n\u00e9ral dans le formulaire de connexion \u00e0 Microsoft<\/span><\/p>\n

          \"Saisie<\/span><\/p>\n

          4. Acceptez les autorisations n\u00e9cessaires d\u00e9crites ci-dessous.<\/span><\/p>\n

          \"Accepter<\/span><\/p>\n

          5. Ex\u00e9cutez le processus de configuration et attendez qu’il soit termin\u00e9. <\/span><\/p>\n

          \"Ex\u00e9cution<\/span><\/p>\n

          6. Acceptez les autorisations d’administrateur pour l’application cr\u00e9\u00e9e.<\/span><\/p>\n

          \"Accepter<\/span><\/p>\n

          Autorisation bas\u00e9e sur un certificat avec CiraSync On-Prem UCM : la m\u00e9thode manuelle<\/span><\/b><\/h4>\n

          La m\u00e9thode manuelle n\u00e9cessite les autorisations suivantes :<\/span><\/p>\n

            \n
          • \u00ab\u00a0Application.Read.All\u00a0\u00bb – requise pour trouver l’application<\/span><\/li>\n
          • \u00ab\u00a0Organization.Read.All\u00a0\u00bb – requise pour lire les informations de l’organisation<\/span><\/li>\n<\/ul>\n

            Toutes ces autorisations ne n\u00e9cessitent qu’une option \u00ab\u00a0Lire\u00a0\u00bb (Read) car CiraSync On-Prem doit lire les informations sur l’application configur\u00e9e manuellement et les enregistrer dans la base de donn\u00e9es itrezzo<\/span><\/p>\n

            Flux d’utilisateurs<\/span><\/b><\/h5>\n

            1. Cr\u00e9ez un certificat manuellement ou automatiquement avec itrezzo.<\/span>
            \n<\/span><\/p>\n

            \"Cr\u00e9er<\/span><\/p>\n

            2. S\u00e9lectionnez une m\u00e9thode de configuration manuelle<\/span><\/p>\n

            \"S\u00e9lection<\/span><\/p>\n

            3. Ex\u00e9cutez le script PowerShell qui sera fourni par l’application CiraSync On-Prem. Vous pouvez trouver un exemple de ce script dans <\/span>Appendix 1<\/span><\/b> \u00e0 la fin de ce document.<\/span><\/p>\n

            \"Ex\u00e9cutez<\/span><\/p>\n

            4.<\/p>\n

            \"Windows<\/span><\/p>\n

            5. Entrez vos identifiants d’administrateur g\u00e9n\u00e9ral dans le formulaire de connexion \u00e0 Microsoft.<\/span><\/p>\n

            \"Saisie<\/span><\/p>\n

            6. Acceptez les autorisations n\u00e9cessaires d\u00e9crites ci-dessous. <\/span><\/p>\n

            IMPORTANT: <\/span><\/b>Ne cochez <\/span>PAS <\/span><\/b>la case \u201cConsent on behalf of your organization.\u201d <\/span><\/p>\n

            \"Accepter
            \n<\/span><\/p>\n

            IMPORTANT:<\/span><\/b> Ne cochez PAS la case \u201cConsent on behalf of your organization.\u201d <\/span><\/p>\n

            \"chargement<\/span><\/p>\n

            7. Ex\u00e9cutez le processus de configuration d’CiraSync On-Prem. Au cours de cette \u00e9tape, CiraSync On-Prem se connectera au portail Azure, trouvera l’application cr\u00e9\u00e9e et enregistrera les modifications dans la base de donn\u00e9es.<\/span><\/p>\n

            \"Ex\u00e9cution<\/span><\/p>\n

            8. Acceptez les autorisations d’administrateur pour l’application cr\u00e9\u00e9e.<\/span>
            \n<\/span><\/p>\n

            Autorisation bas\u00e9e sur certificat avec CiraSync On-Prem UCM : configuration du portail Azure<\/span><\/h2>\n
              \n
            1. Cr\u00e9ez une application dans votre tenant avec le nom <\/span>CiraSync On-Prem – certificate-based authorization – (<\/span><\/b>[CiraSync On-Prem service mailbox]<\/span>).<\/span><\/b>
              \n<\/span><\/li>\n<\/ol>\n

              \"Configuration<\/span><\/p>\n

              \"Configuration<\/span><\/p>\n

              2. Attribuez le certificat \u00e0 cette application<\/span><\/p>\n

              \"Attribuer<\/span><\/p>\n

              3. Configurez les autorisations d’API pour l’application.<\/span><\/p>\n

              \"Configuration<\/span><\/p>\n

              4. Cr\u00e9ez l’entit\u00e9 Principal de service et affectez-la \u00e0 l’application.<\/span>
              \n<\/span><\/p>\n

              \"Affectation<\/span><\/p>\n

              \"derni\u00e8res<\/p>\n

              Annexe 1<\/span><\/b><\/h2>\n

              Vous trouverez ci-dessous un exemple de script PowerShell pour configurer l’autorisation bas\u00e9e sur un certificat.<\/span><\/p>\n

              Ceci n’est qu’un exemple de script. Un script personnalis\u00e9 sera fourni par itrezzo, sp\u00e9cifiquement pour votre environnement, lors du processus de configuration.<\/span><\/i><\/p>\n

              \"Script<\/span><\/p>\n

              \"Script<\/span><\/p>\n

              \"Script<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

              Aper\u00e7u : Autorisation bas\u00e9e sur un certificat Il existe plusieurs fa\u00e7ons de s’authentifier par programmation avec Microsoft Azure. La m\u00e9thode la plus courante utilise un \u00ab\u00a0jeton d’acc\u00e8s\u00a0\u00bb (Access token) dans le cadre des techniques d’authentification modernes. Le jeton d’acc\u00e8s permet \u00e0 CiraSync On-Prem Unified Contact Manager (UCM) d’acc\u00e9der aux ressources Azure. 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