otpauth:

otpauth:

[1] Key Uri Format · google/google-authenticator Wiki (2017-10-01 23:26:38 +09:00) <https://github.com/google/google-authenticator/wiki/Key-Uri-Format>

Secret keys may be encoded in QR codes as a URI with the following format:
otpauth://TYPE/LABEL?PARAMETERS

[2] history - Who invented the otpauth:// URI scheme? - Software Engineering Stack Exchange (2017-10-01 23:28:44 +09:00) <https://softwareengineering.stackexchange.com/questions/210597/who-invented-the-otpauth-uri-scheme>

[3] Authen::OATH::KeyURI - search.cpan.org (2017-10-01 23:29:10 +09:00) <http://search.cpan.org/dist/Authen-OATH-KeyURI/lib/Authen/OATH/KeyURI.pm>

[4] Feature request: Add otpauth as a safelisted scheme for protocol registration handling · Issue #2204 · whatwg/html (2017-10-01 23:29:38 +09:00) <https://github.com/whatwg/html/issues/2204>

[5] Add otpauth as a safelisted scheme for protocol registration handling by JakeChampion · Pull Request #2205 · whatwg/html (2017-10-01 23:30:00 +09:00) <https://github.com/whatwg/html/pull/2205>