BearerToken: The new Authentication handler in .NET 8
In ASP.NET Core 8, Microsoft added a new authentication handler named BearerToken. In this blog post, I will explain how it works and its purpose.
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Debugging JwtBearer Claim Problems in ASP.NET Core
A common problem when protecting your ASP.NET Core APIs is that expected claims are not found in the user object. In this blog post, I
Debugging OpenID Connect Claim Problems in ASP.NET Core
A common issue with OpenID Connect authentication in ASP.NET Core is that expected claims are missing from the ClaimsPrincipal user object. In this blog post,
IdentityServer – IdentityResource vs. ApiResource vs. ApiScope
A common question on Stack Overflow is about the different resource types in Dunde IdentityServer. My answer to this question on Stack Overflow is one
I was interviewed by RetroRGB
After my blog post about my Sega Mega Drive project, I was contacted by RetroRGB who wanted do an interview with me on their YouTube channel.
ASP.NET Core JwtBearer library: what’s new?
As a developer and trainer, it is hard to keep up with all the changes in all the libraries, and in this blog post I
How I built my own Sega Mega Drive hardware dev kit from scratch
Introduction About 30 years ago (when I was around 20) I wanted to develop games, like most developers dream of doing. However, I had one
.NET 5 Source Generators – MediatR – CQRS – OMG!
Over at Edument I blogged about how you can use the new source generator feature in .NET 5 to automatically generate an API for a
Storing the ASP.NET Core Data Protection Key Ring in Azure Key Vault
While developing my latest course IdentityServer in Production, I discovered that there was a lack of support for storing the data protection key ring in
New Course – ASP.NET Core with OpenID Connect and IdentityServer
Whilst at Edument, we were constantly working to develop new courses. One of those courses was Securing ASP.NET using OpenID Connect and IdentityServer. Learn more
About me
My name is Tore Nestenius and I’m a trainer and senior software developer focusing on Architecture, Security and Identity, .NET, C#, Backend, and Cloud, among other things.