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Category Archives: Uncategorized
What’s going on?
I just realized that my last blog post was over half a year ago when we announced our new company Duende Software. So what happened in the last 6 months of my life? In short – a ton! We left … Continue reading
Posted in Uncategorized
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Online Workshops in 2020
For obvious reasons, all in-person workshops have been cancelled for the time being. This is frustrating on one hand, but converting them to an online format, will allow people to attend who otherwise wouldn’t make it. The other upside is, … Continue reading
Posted in Uncategorized
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Hardening Refresh Tokens
Refresh tokens provide a UX friendly way to give a client long-lived access to resources without having to involve the user after the initial authentication & token request. This makes them also a high-value target for attackers, because they typically … Continue reading
Posted in IdentityServer, OAuth, Uncategorized
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2020: IdentityServer4 Roadmap
It’s the time of the year – we are working on IdentityServer and lock down the features we want to implement for the next version(s). Initially we planned to make our 3.0 release the big one – but then .NET … Continue reading
Posted in IdentityServer, Uncategorized
2 Comments
New in IdentityServer4 v4: Multiple signing Keys
So far IdentityServer4 only supported a single signing key at a time. There are historic reasons for that. When we started with .NET Core, the only x-plat algorithm that really worked (without #ifdef hell) was RSA with SHA-256 (RS256) so … Continue reading
Posted in IdentityServer, Uncategorized
3 Comments
IdentityServer3 and upcoming SameSite Cookie changes in Browsers
You have probably heard that starting with Chrome 80 in February, the behavior of cookies will change. This is a breaking change and effects every single web application on the internet. Microsoft has patched their supported platforms (ASP.NET, Katana 4 … Continue reading
Posted in IdentityServer, Uncategorized
9 Comments
IdentityServer for ASP.NET Core 3
In short: is released (along with the introspection and access control validation handler). As part of the longer version, you might ask yourself how we can do that before ASP.NET Core 3 itself is released. Well – it’s a slightly complicated … Continue reading
Posted in ASP.NET Core, IdentityServer, Uncategorized
4 Comments
Releasing IdentityModel v4
IdentityModel has been growing organically over the last years, and we felt it is necessary to do some fundamental cleanup. At the same time it is used by a lot of people and companies (currently around 20 million downloads on … Continue reading
Posted in IdentityModel, Uncategorized
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Claims-based Identity & Access Control for .NET, ASP.NET and WCF 4.5 now retired on PluralSight
Time flies! I just got notice from PluralSight that the above mentioned three courses are now retired and are not included in search results anymore. If you still care about this content – the direct links still work, and here … Continue reading
Posted in .NET Security, ASP.NET, Uncategorized, WCF
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End of IdentityServer3 free Support
Back in 2017 we announced the end of IdentityServer3 maintenance. This excluded security bug fixes. As of the 1st of July 2019 Microsoft officially ended support for Katana 3. This means that the platform we originally built-against is now unsupported … Continue reading
Posted in IdentityServer, Katana, Uncategorized
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