Ubuntu Manpages

OTPClient

Simple GTK+ software to generate OTPs (TOTP and HOTP)

otpclient [OPTIONS]

OTPClient is GTK+ software for two-factor authentication that supports both Time-based One-time Passwords (TOTP) and HMAC-Based One-Time Passwords (HOTP).

OTPClient have the following features:

  • Support both TOTP and HOTP.
  • Support setting custom digits (between 4 and 10 inclusive).
  • Support setting a custom period (between 10 and 120 seconds inclusive).
  • Support SHA1, SHA256 and SHA512 algorithms.
  • Support for Steam codes.
  • Import encrypted Authenticator Plus backup.
  • Import and export encrypted and/or plain andOTP backup.
  • Import and export plain FreeOTPPlus backup (key URI format only).
  • Import and export plain Aegis backup (plain json only).
  • Local database is encrypted using AES256-GCM.
  • Key is derived using PBKDF2 with SHA512 and 100k iterations.
  • Decrypted file is never saved (and hopefully never swapped) to disk. While the app is running, the decrypted content resides in a "secure memory" buffer allocated by Gcrypt.

Help Options:

Show help options.
Show all help options.
Show GApplication options.
Show GTK+ Options.

Application Options:

X display to use.

For other information and tutorials, see:

  • https://github.com/paolostivanin/OTPClient/wiki

OTPClient was written by Paolo Stivanin.

This manual page was written by Francisco Vilmar Cardoso Ruviaro for the Debian project (but may be used by others).