Thinktecture IdentityServer v3 and SAML

Question

Does Thinktecture IdentityServer V3 has support for SAML or does it only support OAuth?

Answer 1

IdentityServer v3 supports any Katana-compatible Owin middleware for authentication. With a compatible middleware for SAML2 such as Kentor.AuthServices IdentityServer 3 can authenticate against external SAML2 Identity Providers with Idsrv acting as a SAML2 Service Provider. I wrote a blog post on how to do it.

There's also a plugin interface which would allow IdentityServer v3 to act as a SAML2 Identity Provider but as far as I know there's no implementation available.

Answer 2

There is Owin middleware to support the SAML protocol you can use with IdentityServer v3. It does not yet support all flows but it is being used in a couple implementations. Full disclosure - I am the author of this code which was forked from a previous SAML2 library on CodePlex.