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If you're truly paranoid, TOTP and HOTP are absurdly easy to implement if you've got an HMAC primitive: https://en.wikipedia.org/wiki/HMAC-based_One-time_Passw

by kaoD 8y ago

If you're truly paranoid, TOTP and HOTP are absurdly easy to implement if you've got an HMAC primitive: https://en.wikipedia.org/wiki/HMAC-based_One-time_Password_algorithm#HOTP_value https://en.wikipedia.org/wiki/HMAC-based_One-time_Password_a... https://en.wikipedia.org/wiki/Time-based_One-time_Password_algorithm#TOTP_value https://en.wikipedia.org/wiki/Time-based_One-time_Password_a... https://github.com/google/google-authenticator/wiki/Key-Uri-Format https://github.com/google/google-authenticator/wiki/Key-Uri-...

VectorLock 8y ago
It always bugged me how Google Authenticator doesn't back up accounts "by design." I know its more secure, but damn its a major hassle if you use it for a lot of things and you need to get a new phone.
- somabc 8y ago
  Authy is a very good substitute with backups.