totper - the very simple totp cli

Very simple totp cli implementation, the real job is done by totp-lite

Usage

Usage: totper SECRET <STEP> <DIGITS> <ALG> <TIMESTAMP>

       or pipe the input parameters

  SECRET    = Unpadded Base32 (RFC4648) encoded secret
  STEP      = Seconds of step, defaults to 30
  DIGITS    = Number of digits in the result, defaults to 6
  ALG       = Algorithm SHA1, SHA256 or SHA512, defaults to SHA1
  TIMESTAMP = UTC Unix timestamp in seconds, defaults to current

  Note: practically all services use SHA1 as default

Examples:
  echo KZXW6ZDPN4 | totper
  766369

  totper KZXW6ZDPN4
  766369

Install

cargo install totper

How to store secrets

I use this with GPG based pass password manager, which keeps the secrets in GPG encrypted files.

TODO:

• Read from stdin
• Maybe change the order of arguments, because secret should be read from STDIN practically always?