Tag Archives: passkeys

Implementing Level of Authentication (LoA) with ASP.NET Core Identity and Duende

January 12, 2026 · by · in .NET Core, ASP.NET Core, aspire, e-id, OAuth2, OpenId, Security, Self Sovereign Identity · 3 Comments

This post shows how to implement an application which requires a user to authenticate using passkeys. The identity provider returns three claims to prove the authentication level (loa), the identity level, (loi) and the amr claim showing the used authentication method. Code: https://github.com/swiss-ssi-group/swiyu-passkeys-idp-loi-loa Blogs in this series: The amr claim and the loa claim returns […]

Implement a Microsoft Entra ID external authentication method using ASP.NET Core and OpenIddict

May 27, 2024 · by · in ASP.NET Core, Azure, dotnet, Microsoft Entra External ID, Microsoft Entra ID · 3 Comments

The article shows how to implement a Microsoft Entra ID external authentication method (EAM) using ASP.NET Core, OpenIddict and FIDO2/passkeys. The application using ASP.NET Core Identity to manage the accounts and the passkeys. Code: https://github.com/damienbod/MfaServer The following flow diagram from the Microsoft docs explains how EAM works. Refer to the documentation for a full explanation. […]