gpgv - phpMan

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 able only to check signa-
       tures.  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 trustwor-
       thy.  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 signa-
                 tures  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)

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