1.\" $OpenBSD: ssh-pkcs11-helper.8,v 1.7 2022/04/29 03:24:30 djm Exp $
2.\"
3.\" Copyright (c) 2010 Markus Friedl.  All rights reserved.
4.\"
5.\" Permission to use, copy, modify, and distribute this software for any
6.\" purpose with or without fee is hereby granted, provided that the above
7.\" copyright notice and this permission notice appear in all copies.
8.\"
9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17.Dd $Mdocdate: April 29 2022 $
18.Dt SSH-PKCS11-HELPER 8
19.Os
20.Sh NAME
21.Nm ssh-pkcs11-helper
22.Nd OpenSSH helper for PKCS#11 support
23.Sh SYNOPSIS
24.Nm
25.Op Fl v
26.Sh DESCRIPTION
27.Nm
28is used by
29.Xr ssh 1 ,
30.Xr ssh-agent 1 ,
31and
32.Xr ssh-keygen 1
33to access keys provided by a PKCS#11 token.
34.Pp
35.Nm
36is not intended to be invoked directly by the user.
37.Pp
38A single option is supported:
39.Bl -tag -width Ds
40.It Fl v
41Verbose mode.
42Causes
43.Nm
44to print debugging messages about its progress.
45This is helpful in debugging problems.
46Multiple
47.Fl v
48options increase the verbosity.
49The maximum is 3.
50.Pp
51Note that
52.Xr ssh 1 ,
53.Xr ssh-agent 1 ,
54and
55.Xr ssh-keygen 1
56will automatically pass the
57.Fl v
58flag to
59.Nm
60when they have themselves been placed in debug mode.
61.El
62.Sh SEE ALSO
63.Xr ssh 1 ,
64.Xr ssh-agent 1 ,
65.Xr ssh-keygen 1
66.Sh HISTORY
67.Nm
68first appeared in
69.Ox 4.7 .
70.Sh AUTHORS
71.An Markus Friedl Aq Mt markus@openbsd.org
72