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DIRMNGR-CLIENT(1)            GNU Privacy Guard 2.3           DIRMNGR-CLIENT(1)

NAME
       dirmngr-client - Tool to access the Dirmngr services

SYNOPSIS
       dirmngr-client [options] [certfile|pattern]

DESCRIPTION
       The dirmngr-client is a simple tool to contact a running dirmngr and
       test whether a certificate has been revoked --- either by being listed
       in the corresponding CRL or by running the OCSP protocol.  If no
       dirmngr is running, a new instances will be started but this is in
       general not a good idea due to the huge performance overhead.

       The usual way to run this tool is either:

         dirmngr-client acert

       or

         dirmngr-client <acert

       Where acert is one DER encoded (binary) X.509 certificates to be
       tested.

RETURN VALUE
       dirmngr-client returns these values:

       0      The certificate under question is valid; i.e. there is a valid
              CRL available and it is not listed there or the OCSP request
              returned that that certificate is valid.

       1      The certificate has been revoked

       2 (and other values)
              There was a problem checking the revocation state of the
              certificate.  A message to stderr has given more detailed
              information.  Most likely this is due to a missing or expired
              CRL or due to a network problem.

OPTIONS
       dirmngr-client may be called with the following options:

       --version
              Print the program version and licensing information.  Note that
              you cannot abbreviate this command.

       --help, -h
              Print a usage message summarizing the most useful command-line
              options.  Note that you cannot abbreviate this command.

       --quiet, -q
              Make the output extra brief by suppressing any informational
              messages.

       -v

       --verbose
              Outputs additional information while running.  You can increase
              the verbosity by giving several verbose commands to dirmngr,
              such as `-vv'.

       --pem  Assume that the given certificate is in PEM (armored) format.

       --ocsp Do the check using the OCSP protocol and ignore any CRLs.

       --force-default-responder
              When checking using the OCSP protocol, force the use of the
              default OCSP responder.  That is not to use the Reponder as
              given by the certificate.

       --ping Check whether the dirmngr daemon is up and running.

       --cache-cert
              Put the given certificate into the cache of a running dirmngr.
              This is mainly useful for debugging.

       --validate
              Validate the given certificate using dirmngr's internal
              validation code.  This is mainly useful for debugging.

       --load-crl
              This command expects a list of filenames with DER encoded CRL
              files.  With the option --url URLs are expected in place of
              filenames and they are loaded directly from the given location.
              All CRLs will be validated and then loaded into dirmngr's cache.

       --lookup
              Take the remaining arguments and run a lookup command on each of
              them.  The results are Base-64 encoded outputs (without header
              lines).  This may be used to retrieve certificates from a
              server. However the output format is not very well suited if
              more than one certificate is returned.

       --url
       -u     Modify the lookup and load-crl commands to take an URL.

       --local
       -l     Let the lookup command only search the local cache.

       --squid-mode
              Run dirmngr-client in a mode suitable as a helper program for
              Squid's external_acl_type option.

SEE ALSO
       dirmngr(8), gpgsm(1)

       The full documentation for this tool is maintained as a Texinfo 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.

GnuPG 2.3.8                       2023-09-28                 DIRMNGR-CLIENT(1)