NAME

totp — generate TOTP codes

SYNOPSIS

DESCRIPTION

totp is a utility for generating TOTP codes. If no secret is provided as a command-line argument, secret keys are read newline-separated from the standard input.

The options are as follows:

-d digits

Specify the length in digits of the generated TOTP codes. The default digit value is 6.

-p seconds

Specify the duration for which the generated TOTP codes are valid. The default seconds value is 30.

EXIT STATUS

The totp utility exits 0 on success, and >0 if an error occurs.

EXAMPLES

Get TOTP codes for two different secret keys using the standard input:

The same as the above but using command-line arguments:

Generate an 8 digit TOTP code that is valid for 60 seconds:

SEE ALSO

uri2totp(1)

AUTHORS

Thomas Voss <mail@tvoss.eu>