Category Archives: OpenID Connect

New in IdentityServer4: Default Scopes

Another small thing people have been asking for. The scope parameter is optional in OAuth 2 – but we made the decision that clients always have to explicitly ask for the scopes they want to access. We relaxed this requirement … Continue reading

Posted in .NET Security, ASP.NET, IdentityServer, OAuth, OpenID Connect, WebAPI | 5 Comments

Identity & Access Control for ASP.NET Core Deep Dive

Once a year Brock and I do our three day version of the Identity & Access Control workshop in London. This year it will be all about .NET Core and ASP.NET Core – and a full day on the new IdentityModel2 & … Continue reading

Posted in .NET Security, ASP.NET, IdentityModel, IdentityServer, OAuth, OpenID Connect, WebAPI | 3 Comments

New in IdentityServer4: Clients without Secrets

Over the next weeks I will do short blog posts about new features in IdentityServer4. The primary intention is to highlight a new feature and then defer to our docs for the details (which will also force me to write … Continue reading

Posted in IdentityServer, OAuth, OpenID Connect, WebAPI | 1 Comment

IdentityServer4 RC1

Wow – we’re done! Brock and I spent the last two weeks 14h/day refactoring, polishing, testing and refining IdentityServer for ASP.NET Core…and I must say it’s the best STS we’ve written so far… We kept the same approach as before, … Continue reading

Posted in .NET Security, ASP.NET, IdentityServer, OAuth, OpenID Connect, WebAPI | 19 Comments

Why does my Authorize Attribute not work?

Sad title, isn’t it? The alternative would have been “The complicated relationship between claim types, ClaimsPrincipal, the JWT security token handler and the Authorize attribute role checks” – but that wasn’t very catchy. But the reality is, that many people are struggling … Continue reading

Posted in .NET Security, OAuth, OpenID Connect, WebAPI | 11 Comments

Trying IdentityServer

We have a demo instance of IdentityServer3 on https://demo.identityserver.io. I already used this for various samples (e.g. the OpenID Connect native clients) – and it makes it easy to try IdentityServer with your clients without having to deploy and configure … Continue reading

Posted in ASP.NET, IdentityServer, OpenID Connect, OWIN, Uncategorized, WebAPI | 2 Comments

Commercial Support Options for IdentityServer

Many customers have asked us for production support for IdentityServer. While this is something we would love to provide, Brock and I can’t do that on our own because we can’t guarantee the response times. I am happy to announce that … Continue reading

Posted in ASP.NET, IdentityServer, OAuth, OpenID Connect, WebAPI | 1 Comment

Fixing OAuth 2.0 with OpenID Connect?

I didn’t like Nat’s Fixing OAuth? post. “For protecting a resource with low value, current RFC6749 and RFC6750 with an appropriate constraint should be good enough…For protecting a resource whose value is higher than a certain level, e.g., the write … Continue reading

Posted in IdentityServer, OAuth, OpenID Connect, WebAPI | 14 Comments

.NET Core 1.0 is released, but where is IdentityServer?

In short: we are working on it. Migrating the code from Katana to ASP.NET Core was actually mostly mechanical. But obviously new approaches and patterns have been introduced which might, or might not align directly with how we used to … Continue reading

Posted in ASP.NET, IdentityServer, OAuth, OpenID Connect, WebAPI | 2 Comments

Update for authentication & API access for native applications and IdentityModel.OidcClient

The most relevant spec for authentication and API access for native apps has been recently updated. If you are “that kind of person” that enjoys looking at diffs of pre-release RFCs – you would have spotted a new way of dealing … Continue reading

Posted in IdentityModel, OAuth, OpenID Connect, WebAPI | 10 Comments