This posts shows how an Angular application can be secured using Open ID Connect code flow with PKCE and OAuth Pushed Authorisation Requests using node-oidc-provider as the identity provider. This requires configuration on both the client and the identity provider. Code: par-angular Getting started using Schematics and angular-auth-oidc-client The Angular client is implemented using angular-auth-oidc-client. […]

This post shows how an ASP.NET Core application which uses ASP.NET Core Identity to authenticate and authorize users of the application can be used to require user password verification to view specific Razor pages in the application. If the user opens one of the Razor pages which require a password verification to open the page, […]

This post shows how authorization can be implemented for Azure Storage Blob containers in an ASP.NET Core web application. The two roles Storage Blob Data Contributor and Storage Blob Data Reader are used to authorize the Azure AD users which use the Blob storage container. Users are assigned the roles using role assignment. This authorization […]

This post shows how files can be uploaded to Azure blob storage using ASP.NET Core in a secure way using OAuth and Open ID Connect. Azure AD is used to authenticate the users. The uploaded file descriptions are saved to an SQL database using EF Core so that listing or searching files can be implemented […]

This post shows how to implement Azure AD App roles and applied to users or groups in Azure AD. The roles are used in an ASP.NET Core Razor page application as well as a ASP.NET Core API. The roles from the access token and the id token are used to authorize the identity which is […]

The post shows how the Device Code flow (RFC 8628) could be implemented in an ASP.NET Core web application which uses Azure AD as an identity provider. An Azure App registration is used to setup the client. This solution would be useful for input constrained devices which have a browser and need to authenticate identities. […]

This post shows how to use shared projects or shared assemblies for ASP.NET Core API Controllers or ASP.NET Core Razor Pages. Sometimes shared logic for different ASP.NET Web API or Web App projects can be implemented in a shared project. The shared project controllers, Razor Pages, services can be referenced and used in the host […]

This article shows how a legacy API could be protected using an ASP.NET Core Yarp reverse proxy and Azure AD OAuth. The security is implemented using Azure AD and Microsoft.Identity.Web. Sometimes it is not possible to update an existing or old API within a reasonable price and the financially best way to use it in […]

This article shows how the lifespan of access tokens can be set and managed in Azure AD using ASP.NET Core Razor pages with Microsoft Graph API and token lifetime policies. A TokenLifetimePolicy can be created for the whole tenant or used for specific Azure App Registrations. Code: Azure AD Token Management Posts in this series […]

The post shows how to create a Blazor application which is hosted in an ASP.NET Core application and provides a public API which uses multiple downstream APIs. Both the Blazor client and the Blazor API are protected by Azure AD authentication. The Blazor UI Client is protected like any single page application. This is a […]