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Category Archives: OAuth
IdentityModel v2 released
IdentityModel is our protocol client library for various OpenID Connect and OAuth 2 endpoints like discovery, userinfo, token, introspection and token revocation. In addition it has some general purpose helpers like generating random numbers, base64 URL encoding, time-constant string comparison … Continue reading
Posted in .NET Security, IdentityModel, OAuth, OpenID Connect, WebAPI
1 Comment
New in IdentityServer4: Resource Owner Password Validation
Not completely new, but re-designed. In IdentityServer3, we used the user service for both interactive as well as non-interactive authentication. In IdentityServer4, the interactive authentication is done by the UI. OAuth 2 resource owner password validation is disabled by default … Continue reading
Posted in ASP.NET, IdentityServer, OAuth, WebAPI
5 Comments
New in IdentityServer4: Support for Extension Grants
Well – this is not completely new, but we redesigned it a bit. Extension grants are used to add support for non-standard token issuance scenarios to the token endpoint, e.g. translating between token types, delegation, federation, custom input or output … Continue reading
Posted in ASP.NET, IdentityServer, OAuth, WebAPI
Leave a comment
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
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
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