cryb-otp/pam/pam_otp/pam_otp.8

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.\" Copyright (c) 2012-2016 The University of Oslo
.\" Copyright (c) 2017 Dag-Erling Smørgrav
.\" All rights reserved.
.\"
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.Dd January 11, 2016
.Dt PAM_OTP 8
.Os
.Sh NAME
.Nm pam_otp
.Nd One-time password service module
.Sh SYNOPSIS
.Op Ar service
.Ar module-type
.Ar control-flag
.Cm Nm
.Op Ar arguments
.Sh DESCRIPTION
The
.Nm
service module implements counter-based and time-based one-time
passwords.
.Pp
The
.Nm
service module recognizes the following options:
.Bl -tag -width ".Cm echo_pass"
.It Cm nokey = Ar fail | fake | ignore
Specifies how the module should behave when no key is available for
the user: either fail immediately, prompt for a code but fail anyway,
or let authentication proceed by other means.
\" .It Cm nouser = Ar fail | fake | ignore
\" Specifies how the module should behave when the user does not exist.
\" See
\" .Bm nokey
\" above.
\" .It Cm badkey = Ar fail | fake | ignore
\" Specifies how the module should behave when the user exists and has a
\" key, but the key could not be loaded (e.g. due to a syntax error in
\" the keyfile).
\" See
\" .Bm nokey
\" above.
.El
.Pp
The
.Nm
service module uses
.Xr pam_get_authtok 3
to prompt the user, and will therefore also be affected by the
standard options
.Sh SEE ALSO
.Xr oathkey 1 ,
.Xr pam.conf 5 ,
.Xr pam 8
.Sh AUTHORS
The
.Nm
module and this manual page were developed by
.An Dag-Erling Sm\(/orgrav Aq Mt des@des.no
for the University of Oslo.