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).