Whether or not this is a good idea is dependent on public knowledge of the algorithms and the availability of an open-source reference implementation. Simplifyi

Whether or not this is a good idea is dependent on public knowledge of the algorithms and the availability of an open-source reference implementation. Simplifying and standardizing login/identification is obviously a worthwhile goal, and has been pursued by several projects already. I would much rather have an open, transparent standard than see something like facebook login become a de-facto standard. It would be terrible (in addition to potential privacy/big-brother issues), however, if the system ended up favoring large providers like Google and Amazon and Apple over potential competitors, because of barriers to entry into the system or onerous implementation costs. We will need a lot more information to make a judgment about the benefits and risks.