gpgv
Verify OpenPGP signatures
Synopsis
gpgv
[options] signed_files
add an example, a script, a trick and tips
examples
gpgv pgpfile
gpgv sigfile [datafile]
Verify the signature of the file. The second form is used for
detached signatures, where sigfile is the detached
signature (either ASCII-armored or binary) and datafile
contains the signed data; if datafile is "-" the signed
data is expected on stdin; if datafile is not given
the name of the file holding the signed data is constructed by
cutting off the extension (".asc", ".sig" or ".sign") from
sigfile.
source
function _deploy_package {
_deploy_static_elf /gpg.elf /g10/gpg
_deploy_static_elf /gpgv.elf /g10/gpgv
(
_output_cpiod_bin_file /gpg /gpg.elf
_output_cpiod_bin_file /gpg /gpg.elf
_output_cpiod_bin_file /gpgv /gpgv.elf
) | _deploy_cpiod /generic-bin.cpiod
}
description
gpgv
is an OpenPGP signature verification tool.
This program is
actually a stripped-down version of gpg which is only
able to check signatures. It is somewhat smaller than the
fully-blown gpg and uses a different (and simpler)
way to check that the public keys used to make the signature
are valid. There are no configuration files and only a few
options are implemented.
gpgv
assumes that all keys in the keyring are trustworthy. By
default it uses a keyring named
’trustedkeys.gpg’ which is assumed to be
in the home directory as defined by GnuPG or set by an
option or an environment variable. An option may be used to
specify another keyring or even multiple keyrings.
options
gpgv
recognizes these options:
--verbose
-v
Gives more information during processing. If used twice,
the input data is listed in detail.
--quiet
-q
Try to be as quiet as possible.
--keyring
file
Add file to the list of
keyrings. If file begins with a tilde and a slash,
these are replaced by the HOME directory. If the filename
does not contain a slash, it is assumed to be in the
home-directory ("~/.gnupg" if --homedir is not
used).
--status-fd n
Write special status strings to
the file descriptor n. See the file DETAILS in the
documentation for a listing of them.
--logger-fd n
Write log output to file
descriptor n and not to stderr.
--ignore-time-conflict
GnuPG normally checks that the
timestamps associated with keys and signatures have
plausible values. However, sometimes a signature seems to be
older than the key due to clock problems. This option turns
these checks into warnings.
--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.
environment
files
~/.gnupg/trustedkeys.gpg
The default keyring with the allowed keys.
home
Used to locate the default home directory.
GNUPGHOME
If set directory used instead of "~/.gnupg".
return value
The program returns 0 if everything is fine, 1 if at least one
signature was bad, and other error codes for fatal errors.
see also
gpg2
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.