-
Recent Posts
Categories
- .NET Security (95)
- ASP.NET (163)
- ASP.NET Core (27)
- AuthorizationServer (33)
- Azure (29)
- Conferences & Training (40)
- IdentityModel (347)
- IdentityServer (205)
- Katana (46)
- OAuth (163)
- OpenID Connect (94)
- OWIN (45)
- Photography (14)
- PolicyServer (3)
- Resources (1)
- Uncategorized (627)
- WCF (109)
- WebAPI (223)
Tweets
Tweets by leastprivilegeFeed
Archives
- February 2026
- October 2024
- May 2021
- October 2020
- July 2020
- June 2020
- May 2020
- April 2020
- March 2020
- February 2020
- January 2020
- September 2019
- August 2019
- July 2019
- June 2019
- April 2019
- February 2019
- January 2019
- December 2018
- July 2018
- June 2018
- May 2018
- February 2018
- January 2018
- December 2017
- November 2017
- October 2017
- August 2017
- July 2017
- May 2017
- April 2017
- March 2017
- February 2017
- January 2017
- December 2016
- October 2016
- September 2016
- August 2016
- July 2016
- June 2016
- May 2016
- February 2016
- January 2016
- December 2015
- November 2015
- October 2015
- September 2015
- July 2015
- June 2015
- May 2015
- April 2015
- March 2015
- February 2015
- January 2015
- December 2014
- November 2014
- October 2014
- September 2014
- August 2014
- July 2014
- June 2014
- May 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- November 2012
- October 2012
- September 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- January 2012
- December 2011
- November 2011
- October 2011
- September 2011
- July 2011
- June 2011
- May 2011
- April 2011
- March 2011
- February 2011
- January 2011
- December 2010
- November 2010
- October 2010
- September 2010
- August 2010
- July 2010
- June 2010
- May 2010
- April 2010
- March 2010
- February 2010
- December 2009
- November 2009
- October 2009
- September 2009
- August 2009
- July 2009
- June 2009
- May 2009
- April 2009
- March 2009
- February 2009
- January 2009
- December 2008
- November 2008
- October 2008
- September 2008
- August 2008
- July 2008
- June 2008
- May 2008
- April 2008
- March 2008
- February 2008
- January 2008
- December 2007
- November 2007
- October 2007
- September 2007
- August 2007
- July 2007
- June 2007
- May 2007
- April 2007
- March 2007
- February 2007
- January 2007
- December 2006
- November 2006
- October 2006
- September 2006
- August 2006
- July 2006
- June 2006
- May 2006
- April 2006
- March 2006
- February 2006
- January 2006
- December 2005
- November 2005
- October 2005
- September 2005
- August 2005
- July 2005
- June 2005
- May 2005
- April 2005
- March 2005
- February 2005
- January 2005
- December 2004
- November 2004
- October 2004
- September 2004
- August 2004
- July 2004
- June 2004
- May 2004
Category Archives: IdentityServer
Platforms where you can run IdentityServer4
There is some confusion about where, and on which platform/OS you can run IdentityServer4 – or more generally speaking: ASP.NET Core. IdentityServer4 is ASP.NET Core middleware – and ASP.NET Core (despite its name) runs on the full .NET Framework 4.5.x … Continue reading
Posted in .NET Security, ASP.NET, IdentityServer, OpenID Connect, WebAPI
37 Comments
Trying IdentityServer4
We have a number of options how you can experiment or get started with IdentityServer4. Starting point It all starts at https://identityserver.io – from here you can find all below links as well as our next workshop dates, consulting, production … Continue reading
Posted in .NET Security, ASP.NET, IdentityServer, OAuth, OpenID Connect, WebAPI
3 Comments
Identity vs Permissions
We often see people misusing IdentityServer as an authorization/permission management system. This is troublesome – here’s why. IdentityServer (hence the name) is really good at providing a stable identity for your users across all applications in your system. And with … Continue reading
Posted in .NET Security, IdentityServer, OAuth, OpenID Connect, WebAPI
53 Comments
Optimizing Identity Tokens for size
Generally speaking, you want to keep your (identity) tokens small. They often need to be transferred via length constrained transport mechanisms – especially the browser URL which might have limitations (e.g. 2 KB in IE). You also need to somehow store the … Continue reading
Posted in .NET Security, IdentityServer, OpenID Connect, WebAPI
5 Comments
New in IdentityServer4: Multiple allowed Grant Types
In OAuth 2 some grant type combinations are insecure, that’s why we decided for IdentityServer3 that we’ll be defensive and allow only a single grant type per client. During the last two years of implementing OAuth 2, it turned out … Continue reading
Posted in ASP.NET, IdentityServer, OAuth, OpenID Connect, WebAPI
2 Comments
IdentityServer4 RC2 released
Yesterday we pushed IdentityServer4 RC2 to nuget. There are no big new features this time, but a lot of cleaning up, bug fixing and adding more tests. We might add one or two more bigger things before RTM – but … Continue reading
Posted in .NET Security, ASP.NET, IdentityModel, IdentityServer, OAuth, OpenID Connect, WebAPI
2 Comments
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
leastprivilege.com 