NAME

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

SYNOPSIS

otpclient [OPTIONS]

DESCRIPTION

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.

OPTIONS

Help Options:

-h, --help: Show help options.
--help-all: Show all help options.
--help-gapplication: Show GApplication options.
--help-gtk: Show GTK+ Options.

Application Options:

--display=DISPLAY: X display to use.

NOTES

For other information and tutorials, see:

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

AUTHOR

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).