We are pleased to announce a new stable GnuTLS release: Version 2.2.0. 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: http://www.gnutls.org/ http://www.gnu.org/software/gnutls/ http://josefsson.org/gnutls/ What's New ========== Major changes compared to the v2.0 branch: * SRP support aligned with newly published RFC 5054. * OpenPGP support aligned with newly published RFC 5081. * Support for DSA2 keys. * Support for Camellia cipher. * Support for Opaque PRF Input extension. * PKCS#8 parser now handle DSA keys. * Change from GPLv2 to GPLv3 for command-line tools, libgnutls-extra, etc. Notice that liblzo2 2.02 is licensed under GPLv2 only. Earlier versions, such as 2.01 which is included with GnuTLS, is available under GPLv2 or later. If this incompatibility causes problems, we recommend you to disable LZO using --without-lzo. LZO compression is not a standard TLS compression algorithm, so the impact should be minimal. * Functions for disabling record protocol padding. Works around bugs on Nokia/Ericsson phones. * New functions gnutls_priority_set() for setting cipher priorities easily. Priorities like "COMPAT" also enables other work arounds, such as disabling padding. * Other minor improvements and bug fixes. Minor changes compared to the latest v2.1.8 release candidate: * Update internal copy of libtasn1 to version 1.2. * Certtool --verify-chain now handle inputs larger than 64kb. This fixes the self-test "rsa-md5-collision" under MinGW+Wine with recent versions of libgcrypt. The problem was that Wine with the libgcrypt RNG generates huge amounts of debugging output. * Translation updates. Added Dutch translation. Updated Polish and Swedish translation. Backwards incompatible API/ABI changes in GnuTLS 2.2 ==================================================== To adapt to changes in the TLS extension specifications for OpenPGP and SRP, the GnuTLS API had to be modified. This means breaking the API and ABI backwards compatibility. That is something we try to avoid unless it is necessary. We decided to also remove the already deprecated stub functions for X.509 to XML conversion and TLS authorization (see below) when we had the opportunity. Generally, most applications does not need to be modified. Just re-compile them against the latest GnuTLS release, and it should work fine. Applications that use the OpenPGP or SRP features needs to be modified. Below is a list of the modified APIs and discussion of what the minimal things you need to modify in your application to make it work with GnuTLS 2.2. Note that GnuTLS 2.2 also introduces new APIs -- such as gnutls_set_priority() that is superior to gnutls_set_default_priority() -- that you may want to start using. However, using those new APIs is not required to use GnuTLS 2.2 since the old functions continue are still supported. This text only discuss what you minimally have to modify. XML related changes ------------------- The function `gnutls_x509_crt_to_xml' has been removed. It has been deprecated and only returned an error code since GnuTLS version 1.2.11. Nobody has complained, so users doesn't seem to miss the functionality. We don't know of any other library to convert X.509 certificates into XML format, but we decided (long ago) that GnuTLS isn't the right place for this kind of functionality. If you want help to find some other library to use here, please explain and discuss your use case on [EMAIL PROTECTED] TLS Authorization related changes --------------------------------- Everything related to TLS authorizations have been removed, they were only stub functions that returned an error code: GNUTLS_SUPPLEMENTAL_AUTHZ_DATA gnutls_authz_data_format_type_t gnutls_authz_recv_callback_func gnutls_authz_send_callback_func gnutls_authz_enable gnutls_authz_send_x509_attr_cert gnutls_authz_send_saml_assertion gnutls_authz_send_x509_attr_cert_url gnutls_authz_send_saml_assertion_url SRP related changes ------------------- The callback gnutls_srp_client_credentials_function has a new prototype, and its semantic has changed. You need to rewrite the callback, see the updated function documentation and SRP example code (doc/examples/ex-client-srp.c and doc/examples/ex-serv-srp.c) for more information. The alert codes GNUTLS_A_MISSING_SRP_USERNAME and GNUTLS_A_UNKNOWN_SRP_USERNAME are no longer used by the SRP specification, instead the GNUTLS_A_UNKNOWN_PSK_IDENTITY alert is used. There are #define's to map the old names to the new. You may run into problems if you have a switch-case with cases for both SRP alerts, since they are now mapped to the same value. The solution is to drop the SRP alerts from such switch cases, as they are now deprecated in favor of GNUTLS_A_UNKNOWN_PSK_IDENTITY. OpenPGP related changes ----------------------- The function `gnutls_certificate_set_openpgp_keyserver' have been removed. There is no replacement functionality inside GnuTLS. If you need keyserver functionality, consider using the GnuPG tools. All functions, types, and error codes related to OpenPGP trustdb format have been removed. The trustdb format is a non-standard GnuPG-specific format, and we recommend you to use key rings instead. The following have been removed: gnutls_certificate_set_openpgp_trustdb gnutls_openpgp_trustdb_init gnutls_openpgp_trustdb_deinit gnutls_openpgp_trustdb_import gnutls_openpgp_key_verify_trustdb gnutls_openpgp_trustdb_t GNUTLS_E_OPENPGP_TRUSTDB_VERSION_UNSUPPORTED The following functions has an added parameter of the (new) type `gnutls_openpgp_crt_fmt_t'. The type specify the format of the data (binary or base64). The functions are: gnutls_certificate_set_openpgp_key_file gnutls_certificate_set_openpgp_key_mem gnutls_certificate_set_openpgp_keyring_mem gnutls_certificate_set_openpgp_keyring_file To improve terminology and align with the X.509 interface, some functions have been renamed. Compatibility mappings exists. The old and new names of the affected functions and types are: Old name New name gnutls_openpgp_key_t gnutls_openpgp_crt_t gnutls_openpgp_key_fmt_t gnutls_openpgp_crt_fmt_t gnutls_openpgp_key_status_t gnutls_openpgp_crt_status_t GNUTLS_OPENPGP_KEY GNUTLS_OPENPGP_CERT GNUTLS_OPENPGP_KEY_FINGERPRINT GNUTLS_OPENPGP_CERT_FINGERPRINT gnutls_openpgp_key_init gnutls_openpgp_crt_init gnutls_openpgp_key_deinit gnutls_openpgp_crt_deinit gnutls_openpgp_key_import gnutls_openpgp_crt_import gnutls_openpgp_key_export gnutls_openpgp_crt_export gnutls_openpgp_key_get_key_usage gnutls_openpgp_crt_get_key_usage gnutls_openpgp_key_get_fingerprint gnutls_openpgp_crt_get_fingerprint gnutls_openpgp_key_get_pk_algorithm gnutls_openpgp_crt_get_pk_algorithm gnutls_openpgp_key_get_name gnutls_openpgp_crt_get_name gnutls_openpgp_key_get_version gnutls_openpgp_crt_get_version gnutls_openpgp_key_get_creation_time gnutls_openpgp_crt_get_creation_time gnutls_openpgp_key_get_expiration_time gnutls_openpgp_crt_get_expiration_time gnutls_openpgp_key_get_id gnutls_openpgp_crt_get_id gnutls_openpgp_key_check_hostname gnutls_openpgp_crt_check_hostname gnutls_openpgp_send_key gnutls_openpgp_send_cert 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): ftp://ftp.gnutls.org/pub/gnutls/gnutls-2.2.0.tar.bz2 http://josefsson.org/gnutls/releases/gnutls-2.2.0.tar.bz2 Here are OpenPGP detached signatures signed using key 0xB565716F: ftp://ftp.gnutls.org/pub/gnutls/gnutls-2.2.0.tar.bz2.sig http://josefsson.org/gnutls/releases/gnutls-2.2.0.tar.bz2.sig 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-2.2.0.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 <[EMAIL PROTECTED]> uid Simon Josefsson <[EMAIL PROTECTED]> sub 1280R/4D5D40AE 2002-05-05 [expires: 2008-06-30] The key is available from: http://josefsson.org/key.txt dns:b565716f.josefsson.org?TYPE=CERT 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: f0024abb61ee07e2ad00943098a439e0e7656742 gnutls-2.2.0.tar.bz2 d446c0fe0888b734f533692d1108af53f90ee5a128625efb05a8e908 gnutls-2.2.0.tar.bz2 Documentation ============= The manual is available online at: http://www.gnu.org/software/gnutls/documentation.html In particular the following formats are available: HTML: http://www.gnu.org/software/gnutls/manual/html_node/index.html PDF: http://www.gnu.org/software/gnutls/manual/gnutls.pdf For developers there is a GnuTLS API reference manual formatted using the GTK-DOC tools: http://www.gnu.org/software/gnutls/reference/gnutls-gnutls.html Community ========= If you need help to use GnuTLS, or want to help others, you are invited to join our help-gnutls mailing list, see: <http://lists.gnu.org/mailman/listinfo/help-gnutls>. If you wish to participate in the development of GnuTLS, you are invited to join our gnutls-dev mailing list, see: <http://lists.gnupg.org/mailman/listinfo/gnutls-dev>. Windows installer ================= 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 GnuTLS 2.2.0. For more information about GnuTLS for Windows: http://josefsson.org/gnutls4win/ The Windows binary installer and PGP signature: http://josefsson.org/gnutls4win/gnutls-2.2.0.exe (14MB) http://josefsson.org/gnutls4win/gnutls-2.2.0.exe.sig The checksum values for SHA-1 and SHA-224 are: 1821cab6dbe81ba1e7eda92f4debd3a789949205 gnutls-2.2.0.exe 7572f61e07eded8e1c96f8ffed3f26991384dcd18995f657962fc972 gnutls-2.2.0.exe Internationalization ==================== GnuTLS messages have been translated into Dutch, German, Malay, Polish and Swedish. We welcome the addition of more translations. Support ======= 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 or equipment. 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: http://www.gnu.org/software/gnutls/commercial.html Happy Hacking, Simon
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