.TH OTP 1 2022-03-06 "OMKOV cryptutils" "General Commands Manual"
.SH NAME
otp \(em compute hotp or totp tokens
.SH SYNOPSYS
\fBotp\fR \fIsecret\fR [\fIcounter\fR]
.SH DESCRIPTION
Compute and print an HOTP or TOTP token for a given secret.
.SH OPTIONS
The following options are supported:
.IP "\fB--help\fR" 8
Display help information.
.IP "\fB--version\fR" 8
Display version information.
.SH OPERANDS
The following operands are supported:
.IP "\fIsecret\fR" 8
A secret key in Base16.
.IP "\fIcounter\fR" 8
A counter for HOTP. If no counter is specified, TOTP will be used instead.
.SH EXIT STATUS
The following exit values will be returned:
.IP "\ 0" 8
Successful completion.
.IP ">0" 8
An error occurred.
.SH COPYRIGHT
.nf
Copyright (C) 2020, Jakob Wakeling
MIT Licence (https://opensource.org/licenses/MIT)
.fi