gpgv2 - Verify OpenPGP signatures
gpgv2 [options] signed_files
GPGV2(1) GNU Privacy Guard GPGV2(1)
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 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
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 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
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".
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | crypto/gnupg |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
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 struc-
ture and an index.
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original community
source was downloaded from
ftp://ftp.gnupg.org/gcrypt/gnupg/gnupg-2.0.27.tar.bz2
Further information about this software can be found on the open source
community website at http://www.gnupg.org/.
GnuPG 2.0.27 2015-08-20 GPGV2(1)