I have a bunch of personal projects that I’m working on. They all need some for sort of authentication. I think it’d be easier to have a dedicated service to manage tokens instead of implementing it again and again for each service.
Amazon, Google and Microsoft provide something like that, but I’m looking for a self-hosted solution. Any suggestions?
You need to reimplement TOTP on a per-service base. There are hardware tokens available, so you could use one of them (Token2, maybe?) instead on user side. You still need to allow custom secrets for your services so you can enter the token ID there. Are you sure you meant a (TOTP) token and not single sign-on?