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Client authentication

Azure Event Grid's MQTT broker supports the following authentication modes.

  • Certificate-based authentication
  • Microsoft Entra ID authentication

Certificate-based authentication

You can use Certificate Authority (CA) signed certificates or self-signed certificates to authenticate clients. For more information, see MQTT Client authentication using certificates.

Microsoft Entra ID authentication

You can authenticate MQTT clients with Microsoft Entra JWT to connect to Event Grid namespace. You can use Azure role-based access control (Azure RBAC) to enable MQTT clients, with Microsoft Entra identity, to publish or subscribe access to specific topic spaces. For more information, see Microsoft Entra JWT authentication and Azure RBAC authorization to publish or subscribe MQTT messages.

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