[Announce] GnuPG 2.0.25 released

Werner Koch wk at gnupg.org
Mon Jun 30 18:33:03 CEST 2014


Wer are pleased to announce the availability of a new stable GnuPG-2
release: Version 2.0.25.  This release fixes a regression introduced
with the 2.0.24 release.

The GNU Privacy Guard (GnuPG) is the most commonly used tool for OpenPGP
mail and data encryption.  It can be used to encrypt data, create
digital signatures, help authenticating using Secure Shell and to
provide a framework for public key cryptography.  It includes an
advanced key management facility and is compliant with the OpenPGP and
S/MIME standards.

GnuPG-2 has a different architecture than GnuPG-1 (e.g. 1.4.17) in that
it splits up functionality into several modules.  However, both versions
may be installed alongside without any conflict.  In fact, the gpg
version from GnuPG-1 is able to make use of the gpg-agent as included in
GnuPG-2 and allows for seamless passphrase caching.  The advantage of
GnuPG-1 is its smaller size and the lack of dependency on other modules
at run and build time.  We keep maintaining GnuPG-1 versions because
they are useful on very old platforms and for server based applications
requiring only OpenPGP support.

GnuPG is distributed under the terms of the GNU General Public License
(GPLv3+).  GnuPG-2 works best on GNU/Linux and *BSD systems but is also
available for other Unices, Microsoft Windows, VMS, and Mac OS X.

What's New in 2.0.24

 * gpg: Fix a regression in 2.0.24 if more than one keyid is given
   to --recv-keys et al.

 * gpg: Cap RSA and Elgamal keysize at 4096 bit also for unattended
   key generation.

 * gpgsm: Fix a DISPLAY related problem with --export-secret-key-p12.

 * scdaemon: Support reader Gemalto IDBridge CT30.

Getting the Software

Please follow the instructions found at https://www.gnupg.org/download/
or read on:

GnuPG 2.0.25 may be downloaded from one of the GnuPG mirror sites or
direct from ftp://ftp.gnupg.org/gcrypt/gnupg/ .  The list of mirrors
can be found at https://www.gnupg.org/mirrors.html .  Note that GnuPG
is not available at ftp.gnu.org.

On ftp.gnupg.org and on its mirrors you should find the following new
files in the gnupg/ directory:

  - The GnuPG-2 source code compressed using BZIP2 and its OpenPGP

    gnupg-2.0.25.tar.bz2     (4201k)

  - A patch file to upgrade a 2.0.24 GnuPG source tree.  This patch does
    not include updates of the language files.

    gnupg-2.0.24-2.0.25.diff.bz2 (12k)

Note, that we don't distribute gzip compressed tarballs for GnuPG-2.
A Windows version will eventually be released at https://gpg4win.org .

Checking the Integrity

In order to check that the version of GnuPG which you are going to
install is an original and unmodified one, you can do it in one of
the following ways:

 * If you already have a trusted version of GnuPG installed, you
   can simply check the supplied signature.  For example to check the
   signature of the file gnupg-2.0.25.tar.bz2 you would use this command:

     gpg --verify gnupg-2.0.25.tar.bz2.sig

   This checks whether the signature file matches the source file.
   You should see a message indicating that the signature is good and
   made by that signing key.  Make sure that you have the right key,
   either by checking the fingerprint of that key with other sources
   or by checking that the key has been signed by a trustworthy other
   key.  Note, that you can retrieve the signing key using the command

     finger wk ,at' g10code.com

   or using a keyserver like

     gpg --keyserver keys.gnupg.net --recv-key 4F25E3B6

   The distribution key 4F25E3B6 is signed by the well known key


 * If you are not able to use an old version of GnuPG, you have to verify
   the SHA-1 checksum.  Assuming you downloaded the file
   gnupg-2.0.25.tar.bz2, you would run the sha1sum command like this:

     sha1sum gnupg-2.0.25.tar.bz2

   and check that the output matches the first line from the
   following list:

890d77d89f2d187382f95e83e386f2f7ba789436  gnupg-2.0.25.tar.bz2
fd91161181f1f4cee2827cd2a08c47f382b4059b  gnupg-2.0.24-2.0.25.diff.bz2


The file gnupg.info has the complete user manual of the system.
Separate man pages are included as well; however they have not all the
details available in the manual.  It is also possible to read the
complete manual online in HTML format at


or in Portable Document Format at

  https://www.gnupg.org/documentation/manuals/gnupg.pdf .

The chapters on gpg-agent, gpg and gpgsm include information on how
to set up the whole thing.  You may also want search the GnuPG mailing
list archives or ask on the gnupg-users mailing lists for advise on
how to solve problems.  Many of the new features are around for
several years and thus enough public knowledge is already available.

Almost all mail clients support GnuPG-2.  Mutt users may want to use
the configure option "--enable-gpgme" during build time and put a "set
use_crypt_gpgme" in ~/.muttrc to enable S/MIME support along with the
reworked OpenPGP support.


Please consult the archive of the gnupg-users mailing list before
reporting a bug <https://gnupg.org/documentation/mailing-lists.html>.
We suggest to send bug reports for a new release to this list in favor
of filing a bug at <https://bugs.gnupg.org>.  We also have a dedicated
service directory at:


The driving force behind the development of GnuPG is the company of
its principal author, Werner Koch.  Maintenance and improvement of
GnuPG and related software takes up most of their resources.  To allow
him to continue this work he kindly asks to either purchase a support
contract, engage g10 Code for custom enhancements, or to donate money:



We have to thank all the people who helped with this release, be it
testing, coding, translating, suggesting, auditing, administering the
servers, spreading the word, and answering questions on the mailing
lists.  Jean-René Reinhard, Olivier Levillain, and Florian Maury of
ANSSI.fr found and reported the compression bug we fixed in 2.0.24.
Jean-René should have been mentioned in the original commit message.



Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.
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