Earlier quoted context omitted.
Before that there was Microsoft Passport. Federated login for the web is a “problem” various parties have been working on for 20 years.
There's a fundamental problem of "I want my credentials to be validated by some central service, but I don't want to give some big faceless company my information." The centralized login service can be used to track your activity all across the net. It's a lot of power to give to some people you don't know. Worse, people's fears in this area are completely justified. Precious few companies have proven themselves to b…
Unfortunately this idea didn't gain more traction, and there are only a few references to it online now, such as this research paper and a YouTube video by one of the authors:
https://ai.google/research/pubs/pub36553
https://www.youtube.com/watch?v=fCBPuGsO_I4
Also, it didn't address all the methods by which a malicious identity provider could track the user, so it would probably have to be extended by having support added in the browser.