gpgv

gpgv(1)                     General Commands Manual                    gpgv(1)



NAME
       gpgv — signature verification tool

SYNOPSIS
       gpgv  [options]  [signed files]

DESCRIPTION
       gpgv is the OpenPGP signature checking tool.


       This program is a stripped down version of gpg which is able only 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 trustworthy.  There are no options files and
       only very 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:

       -v, --verbose
                 Gives more information during processing. If used twice, the
                 input data is listed in detail.

       -q, --quiet
                 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).
                 The filename may be prefixed with a scheme:

                 "gnupg-ring:" is the default one.

       --homedir directory
                 Set the name of the home directory to directory If this
                 option is not used, it defaults to "~/.gnupg". It does not
                 make sense to use this in an options file. This also
                 overrides the environment variable "GNUPGHOME".

       --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 makes these checks just
                 warnings.

RETURN VALUE
       The program returns 0 if everything was fine, 1 if at least one
       signature was bad, and other error codes for fatal errors.


EXAMPLES
       gpgv pgpfile

       gpgv sigfile [files]
                 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 [files] are the signed
                 data; if this 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.

ENVIRONMENT
       HOME      Used to locate the default home directory.

       GNUPGHOME If set directory used instead of "~/.gnupg".

FILES
       ~/.gnupg/trustedkeys.gpg
                 The default keyring with the allowed keys



                                                                       gpgv(1)