There is an authentication system named after the concept, if that is what you mean: https://en.wikipedia.org/wiki/Shibboleth_Single_Sign-on_architecture https:

There is an authentication system named after the concept, if that is what you mean: https://en.wikipedia.org/wiki/Shibboleth_Single_Sign-on_architecture https://en.wikipedia.org/wiki/Shibboleth_Single_Sign-on_arch...