Key Uri Format · google/google-authenticator Wiki · GitHub
DUO Two Factor Authentication (2FA) | Information Technology Services Centre, The Chinese University of Hong Kong
GitHub - scito/extract_otp_secrets: Extract one time password (OTP) secrets from QR codes exported by two-factor authentication (2FA) apps such as "Google Authenticator". The exported QR codes from authentication apps can be captured
GitHub - arachsys/totp: RFC 6238 code generator compatible with Google Authenticator
DUO Two Factor Authentication (2FA) | Information Technology Services Centre, The Chinese University of Hong Kong