gpgv

gpgv(1)                                                                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 only able to
       check signatures.  It is somewhat smaller than the full blown  gpg  and
       uses  a  different  (and more simple way) to check that the public keys
       used to made the signature are trustworth.  There is no  options  files
       and only very few options are implemented.

       gpgv  assumes  that all keys in the keyring are trustworty.  It uses by
       default 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 environ-
       ment variable.  An option may be used to  specify  another  keyring  or
       even multiple keyrings.

OPTIONS
       gpgv recognizes these options:

       -v, --verbose
                 Give  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.

                 It might make sense to use  it  together  with  --no-default-
                 keyring.

       --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 a 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, some-
                 times a signature seems to be older than the key due to clock
                 problems.  This option makes these checks just a warning.

RETURN VALUE
       The  program returns 0 if everything was fine, 1 if at least one signa-
       ture 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)