simon at josefsson.org
Fri Jan 18 16:25:07 CET 2008
We are pleased to announce a new stable GnuTLS release: Version 2.2.1.
GnuTLS is a modern C library that implement the standard network
security protocol Transport Layer Security (TLS), for use by network
applications. GnuTLS is developed for GNU/Linux, but works on many
Unix-like systems and comes with a binary installer for Windows.
The core GnuTLS library is distribute under the terms of the GNU Lesser
General Public License version 2.1 (or later). The "extra" GnuTLS
libraries -- which contains OpenPGP and TLS/IA support, LZO compression,
the OpenSSL compatibility library -- and the self tests and command line
tools are distributed under the GNU General Public License version 3.0
(or later). The manual is distributed under the GNU Free Documentation
License version 1.2 (or later).
The project page of the library is available at:
* Version 2.2.1 (released 2008-01-17)
** Prevent linking libextra against previously installed libgnutls.
Tiny patch from "Alon Bar-Lev" <alon.barlev at gmail.com>, see
** Fixes the post_client_hello_function(). The extensions are now parsed
in a callback friendly way.
** Fix for certificate selection in servers with certificate callbacks.
** API and ABI modifications:
No changes since last version.
Getting the Software
GnuTLS may be downloaded from one of the mirror sites or direct from
<ftp://ftp.gnutls.org/pub/gnutls/>. The list of mirrors can be found at
<http://www.gnu.org/software/gnutls/download.html>. Note, that GnuPG is
not available at ftp.gnu.org.
Here are the BZIP2 compressed sources (4.8MB):
Here are OpenPGP detached signatures signed using key 0xB565716F:
Note, that we don't distribute gzip compressed tarballs.
In order to check that the version of GnuTLS which you are going to
install is an original and unmodified one, you should verify the OpenPGP
signature. You can use the command
gpg --verify gnutls-2.2.1.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. The signing
key can be identified with the following information:
pub 1280R/B565716F 2002-05-05 [expires: 2008-06-30]
Key fingerprint = 0424 D4EE 81A0 E3D1 19C6 F835 EDA2 1E94 B565 716F
uid Simon Josefsson <simon at josefsson.org>
uid Simon Josefsson <jas at extundo.com>
sub 1280R/4D5D40AE 2002-05-05 [expires: 2008-06-30]
The key is available from:
Alternatively, after successfully verifying the OpenPGP signature of
this announcement, you could verify that the files match the following
checksum values. The values are for SHA-1 and SHA-224 respectively:
The manual is available online at:
In particular the following formats are available:
For developers there is a GnuTLS API reference manual formatted using
the GTK-DOC tools:
If you need help to use GnuTLS, or want to help others, you are invited
to join our help-gnutls mailing list, see:
If you wish to participate in the development of GnuTLS, you are invited
to join our gnutls-devel mailing list, see:
GnuTLS has been ported to the Windows operating system, and a binary
installer is available. The installer contains DLLs for application
development, manuals, examples, and source code. The installer consists
of libgpg-error 1.6, libgcrypt 1.4.0, libtasn1 1.2, opencdk 0.6.6, and
For more information about GnuTLS for Windows:
The Windows binary installer and PGP signature:
The checksum values for SHA-1 and SHA-224 are:
GnuTLS messages have been translated into Dutch, German, Malay, Polish
and Swedish. We welcome the addition of more translations.
Improving GnuTLS is costly, but you can help! We are looking for
organizations that find GnuTLS useful and wish to contribute back. You
can contribute by reporting bugs, improve the software, or donate money
Commercial support contracts for GnuTLS are available, and they help
finance continued maintenance. Simon Josefsson Datakonsult, a Stockholm
based privately held company, is currently funding GnuTLS maintenance.
We are always looking for interesting development projects. See
http://josefsson.org/ for more details.
The GnuTLS service directory is available at:
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