NAME

       gpgv2 - Verify OpenPGP signatures

SYNOPSIS

       gpgv2 [options] signed_files

DESCRIPTION

       gpgv2 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.

       gpgv2 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.

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.

OPTIONS

       gpgv2 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.

EXAMPLES

       gpgv2 pgpfile

       gpgv2 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.

FILES

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

ENVIRONMENT

       HOME   Used to locate the default home directory.

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

SEE ALSO

       gpg2(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.