What are App Registrations in Azure (Microsoft Entra ID)

#entra

Power Platform - General

App registrations in Azure are identities for applications, allowing for delegated permissions to app identities.
Creating an App Registration in Azure means trusting Microsoft Identity to manage app authentication.
The process generates a service principal for use with other Azure services, providing a client ID, object ID, tenant ID, and the option for a client secret or public key.
Service principals come in three types: Application, Managed Identity, and Legacy, each serving different purposes.
In the business logic, a private key or client secret can be used to enable application authentication as a service principal to access resources on the resource server.
The implicit flow process involves end users wanting to access data on a resource server, with the resource server redirecting to the authz server for authentication.
Managed Identity is a special type of service principal tied to a resource, while Legacy service principals represent older apps.
The article hints at a follow-up post about Managed Identity, providing a comprehensive overview of app registration in Azure Active Directory.

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