http://xfdug5vmfi6oh42fp6ahhrqdjcf7ysqat6fkp5dhvde4d7vlkqixrsad.onion
At the time, a service wanting to offer TOTP to its users had to stick to
the default security parameters or face major interoperability issues with
common authenticator clients. Has the landscape changed or are we still
stuck with security decisions made 15 years
ago ? As an aside: yes, everybody is linking to a wiki page for an archived Google repo because there is no formal spec for the URI format .