scdaemon
(1)
名前
scdaemon - Smartcard daemon for the GnuPG system
形式
scdaemon [--homedir dir] [--options file] [options] --server
scdaemon [--homedir dir] [--options file] [options] --daemon
[command_line]
説明
GNU Privacy Guard SCDAEMON(1)
NAME
scdaemon - Smartcard daemon for the GnuPG system
SYNOPSIS
scdaemon [--homedir dir] [--options file] [options] --server
scdaemon [--homedir dir] [--options file] [options] --daemon
[command_line]
DESCRIPTION
The scdaemon is a daemon to manage smartcards. It is usu-
ally invoked by gpg-agent and in general not used directly.
COMMANDS
Commands are not distinguished from options except for the
fact that only one command is allowed.
--version
Print the program version and licensing information.
Not that you can abbreviate this command.
--help, -h
Print a usage message summarizing the most useful com-
mand-line options. Not that you can abbreviate this
command.
--dump-options
Print a list of all available options and commands.
Not that you can abbreviate this command.
--server
Run in server mode and wait for commands on the stdin.
This is default mode is to create a socket and listen
for commands there.
--multi-server
Run in server mode and wait for commands on the stdin
as well as on an additional Unix Domain socket. The
server command GETINFO may be used to get the name of
that extra socket.
--daemon
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Run the program in the background. This option is
required to prevent it from being accidentally running
in the background.
OPTIONS
--options file
Reads configuration from file instead of from the
default per-user configuration file. The default con-
figuration file is named `scdaemon.conf' and expected
in the `.gnupg' directory directly below the home
directory of the user.
--homedir dir
Set the name of the home directory to dir. If this
option is not used, the home directory defaults to
`~/.gnupg'. It is only recognized when given on the
command line. It also overrides any home directory
stated through the environment variable `GNUPGHOME' or
(on W32 systems) by means of the Registry entry
HKCU\Software\GNU\GnuPG:HomeDir.
-v
--verbose
Outputs additional information while running. You can
increase the verbosity by giving several verbose com-
mands to gpgsm, such as '-vv'.
--debug-level level
Select the debug level for investigating problems.
level may be a numeric value or a keyword:
none No debugging at all. A value of less than 1 may
be used instead of the keyword.
basic
Some basic debug messages. A value between 1 and
2 may be used instead of the keyword.
advanced
More verbose debug messages. A value between 3
and 5 may be used instead of the keyword.
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expert
Even more detailed messages. A value between 6
and 8 may be used instead of the keyword.
guru All of the debug messages you can get. A value
greater than 8 may be used instead of the keyword.
The creation of hash tracing files is only enabled
if the keyword is used.
How these messages are mapped to the actual debugging flags
is not specified and may change with newer releases of this
program. They are however carefully selected to best aid in
debugging.
All debugging options are subject to change and thus
should not be used by any application program. As the
name says, they are only used as helpers to debug prob-
lems.
--debug flags
This option is only useful for debugging and the behav-
iour may change at any time without notice. FLAGS are
bit encoded and may be given in usual C-Syntax. The
currently defined bits are:
0 (1)
command I/O
1 (2)
values of big number integers
2 (4)
low level crypto operations
5 (32)
memory allocation
6 (64)
caching
7 (128)
show memory statistics.
9 (512)
write hashed data to files named dbgmd-000*
10 (1024)
trace Assuan protocol. See also option --debug-
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assuan-log-cats.
11 (2048)
trace APDU I/O to the card. This may reveal sen-
sitive data.
12 (4096)
trace some card reader related function calls.
--debug-all
Same as --debug=0xffffffff
--debug-wait n
When running in server mode, wait n seconds before
entering the actual processing loop and print the pid.
This gives time to attach a debugger.
--debug-ccid-driver
Enable debug output from the included CCID driver for
smartcards. Using this option twice will also enable
some tracing of the T=1 protocol. Note that this
option may reveal sensitive data.
--debug-disable-ticker
This option disables all ticker functions like checking
for card insertions.
--debug-allow-core-dump
For security reasons we won't create a core dump when
the process aborts. For debugging purposes it is some-
times better to allow core dump. This options enables
it and also changes the working directory to `/tmp'
when running in --server mode.
--debug-log-tid
This option appends a thread ID to the PID in the log
output.
--debug-assuan-log-cats cats
Changes the active Libassuan logging categories to
cats. The value for cats is an unsigned integer given
in usual C-Syntax. A value of of 0 switches to a
default category. If this option is not used the cate-
gories are taken from the environment variable
'ASSUAN_DEBUG'. Note that this option has only an
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effect if the Assuan debug flag has also been with the
option --debug. For a list of categories see the
Libassuan manual.
--no-detach
Don't detach the process from the console. This is
mainly useful for debugging.
--log-file file
Append all logging output to file. This is very help-
ful in seeing what the agent actually does.
--pcsc-driver library
Use library to access the smartcard reader. The cur-
rent default is `libpcsclite.so'. Instead of using
this option you might also want to install a symbolic
link to the default file name (e.g. from `libpc-
sclite.so.1').
--ctapi-driver library
Use library to access the smartcard reader. The cur-
rent default is `libtowitoko.so'. Note that the use of
this interface is deprecated; it may be removed in
future releases.
--disable-ccid
Disable the integrated support for CCID compliant read-
ers. This allows to fall back to one of the other
drivers even if the internal CCID driver can handle the
reader. Note, that CCID support is only available if
libusb was available at build time.
--reader-port number_or_string
This option may be used to specify the port of the card
terminal. A value of 0 refers to the first serial
device; add 32768 to access USB devices. The default
is 32768 (first USB device). PC/SC or CCID readers
might need a string here; run the program in verbose
mode to get a list of available readers. The default
is then the first reader found.
To get a list of available CCID readers you may use
this command:
echo scd getinfo reader_list | gpg-connect-agent --decode | awk '/^D/ {print $2}'
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--card-timeout n
If n is not 0 and no client is actively using the card,
the card will be powered down after n seconds. Power-
ing down the card avoids a potential risk of damaging a
card when used with certain cheap readers. This also
allows non Scdaemon aware applications to access the
card. The disadvantage of using a card timeout is that
accessing the card takes longer and that the user needs
to enter the PIN again after the next power up.
Note that with the current version of Scdaemon the card
is powered down immediately at the next timer tick for
any value of n other than 0.
--enable-pinpad-varlen
Please specify this option when the card reader sup-
ports variable length input for pinpad (default is no).
For known readers (listed in ccid-driver.c and apdu.c),
this option is not needed. Note that if your card
reader doesn't supports variable length input but you
want to use it, you need to specify your pinpad request
on your card.
--disable-pinpad
Even if a card reader features a pinpad, do not try to
use it.
--deny-admin
This option disables the use of admin class commands
for card applications where this is supported. Cur-
rently we support it for the OpenPGP card. This com-
mands is useful to inhibit accidental access to admin
class command which could ultimately lock the card
through wrong PIN numbers. Note that GnuPG versions
older than 2.0.11 featured an --allow-admin command
which was required to use such admin commands. This
option has no more effect today because the default is
now to allow admin commands.
--disable-application name
This option disables the use of the card application
named name. This is mainly useful for debugging or if
a application with lower priority should be used by
default.
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All the long options may also be given in the configu-
ration file after stripping off the two leading dashes.
CARD APPLICATIONS
scdaemon supports the card applications as described below.
The OpenPGP card application ``openpgp''
This application is currently only used by gpg but may in
future also be useful with gpgsm. Version 1 and version 2
of the card is supported.
The specifications for these cards are available at
(http://g10code.com/docs/openpgp-card-1.0.pdf) and
(http://g10code.com/docs/openpgp-card-2.0.pdf).
The Telesec NetKey card ``nks''
This is the main application of the Telesec cards as avail-
able in Germany. It is a superset of the German DINSIG
card. The card is used by gpgsm.
The DINSIG card application ``dinsig''
This is an application as described in the German draft
standard DIN V 66291-1. It is intended to be used by cards
supporting the German signature law and its bylaws (SigG and
SigV).
The PKCS#15 card application ``p15''
This is common framework for smart card applications. It is
used by gpgsm.
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The Geldkarte card application ``geldkarte''
This is a simple application to display information of a
German Geldkarte. The Geldkarte is a small amount debit
card application which comes with almost all German banking
cards.
The Undefined card application ``undefined''
This is a stub application to allow the use of the APDU com-
mand even if no supported application is found on the card.
This application is not used automatically but must be
explicitly requested using the SERIALNO command.
EXAMPLES
$ scdaemon --server -v
FILES
There are a few configuration files to control certain
aspects of scdaemons's operation. Unless noted, they are
expected in the current home directory (see: [option --home-
dir]).
scdaemon.conf
This is the standard configuration file read by scdae-
mon on startup. It may contain any valid long option;
the leading two dashes may not be entered and the
option may not be abbreviated. This default name may
be changed on the command line (see: [option
--options]).
scd-event
If this file is present and executable, it will be
called on veyer card reader's status changed. An exam-
ple of this script is provided with the distribution
reader_n.status
This file is created by sdaemon to let other
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applications now about reader status changes. Its use
is now deprecated in favor of `scd-event'.
ATTRIBUTES
See attributes(5) for descriptions of the following
attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | crypto/gnupg |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
SEE ALSO
gpg-agent(1), gpgsm(1), gpg2(1)
The full documentation for this tool is maintained as a Tex-
info manual. If GnuPG and the info program are properly
installed at your site, the command
info gnupg
should give you access to the complete manual including a
menu structure and an index.
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original
community source was downloaded from
ftp://ftp.gnupg.org/gcrypt/gnupg/gnupg-2.0.22.tar.bz2
Further information about this software can be found on the
open source community website at http://www.gnupg.org/.
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