GPGV(1) 		       GNU Privacy Guard		       GPGV(1)



NAME
       gpgv - Verify OpenPGP signatures

SYNOPSIS
       gpgv [options] signed_files





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 environ
       ment 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 signa
       ture was bad, and other error codes for fatal errors.


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  sig
	      nature  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
       gpgv pgpfile

       gpgv sigfile
	      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 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.



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
       gpg(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 gnupg1

       should give you access to the complete manual including a  menu	struc
       ture and an index.




GnuPG 1.4.6			  2007-03-07			       GPGV(1)