rotp(1) Ruby library for generating and verifying one time passwords

SYNOPSIS

rotp [options]

DESCRIPTION

A Ruby library for generating and verifying one time passwords. It works for both HOTP and TOTP, and includes QR Code provisioning

OPTIONS

-s, --secret [SECRET] The shared secret
-c, --counter [COUNTER] The counter for counter-based hmac OTP
-t, --time Use time-based OTP according to RFC 6238 (default)
-m, --hmac Use counter-based OTP according to RFC 4226
-h, --help Show help

Examples

rotp --secret p4ssword # Generates a time-based one-time password

rotp --hmac --secret p4ssword --counter 42 # Generates a counter-based one-time password