Where can I find useful documentation about using Shibboleth and SAML for SSO besides the Shibboleth Wiki pages, preferably for Ruby applications? Ruby-specific documentation for Shibboleth seems to be very sparse. Does anyone know good resources, tutorials or HowTos?
Unfortunately, the only useful documentation I found is the official documentation from the creators of Shibboleth and SAML themselves. This seems to be a good technical overview about SAML 2 in general from the standards organization OASIS: Security Assertion Markup Language (SAML) V2.0 Technical Overview. One can also read the complete SAML specifications, but I doubt this will be a good start. The only authorative source for Shibboleth seems to be the Shibboleth Wiki itself.