gnutls 3.6.8

Hello, 
 I've just released gnutls 3.6.8. This is a bug fix release on the
stable 3.6.x branch.

I'd like to thank everyone who contributed in this release:
Aleksei Nikiforov, Alon Bar-Lev, Andreas Metzler, Bernhard M.
Wiedemann, Daiki Ueno, Daniel Schaefer, Dmitry Eremin-Solenikov,
Elta Koepp, Kenneth J. Miller, Maciej S. Szmigiero, Marius Bakke
Simo Sorce and Tim Rühsen.

The detailed list of changes follows; they can be seen in more detail
in our milestone tracker:
https://gitlab.com/gnutls/gnutls/milestones/21


Changes
=======

* Version 3.6.8 (released 2019-05-28)

** libgnutls: Added gnutls_prf_early() function to retrieve early keying
   material (#329)

** libgnutls: Added support for AES-XTS cipher (#354)

** libgnutls: Fix calculation of Streebog digests (incorrect carry operation in
   512 bit addition)

** libgnutls: During Diffie-Hellman operations in TLS, verify that the peer's
   public key is on the right subgroup (y^q=1 mod p), when q is available (under
   TLS 1.3 and under earlier versions when RFC7919 parameters are used).

** libgnutls: the gnutls_srp_set_server_credentials_function can now be used
   with the 8192 parameters as well (#995).

** libgnutls: Fixed bug preventing the use of gnutls_pubkey_verify_data2() and
   gnutls_pubkey_verify_hash2() with the GNUTLS_VERIFY_DISABLE_CA_SIGN flag (#754)

** libgnutls: The priority string option %ALLOW_SMALL_RECORDS was added to allow
   clients to communicate with the server advertising smaller limits than 512

** libgnutls: Apply STD3 ASCII rules in gnutls_idna_map() to prevent
   hostname/domain crafting via IDNA conversion (#720)

** certtool: allow the digital signature key usage flag in CA certificates.
   Previously certtool would ignore this flag for CA certificates even if
   specified (#767)

** gnutls-cli/serv: added the --keymatexport and --keymatexportsize options.
   These allow testing the RFC5705 using these tools.

** API and ABI modifications:
gnutls_prf_early: Added
gnutls_record_set_max_recv_size: Added
gnutls_dh_params_import_raw3: Added
gnutls_ffdhe_2048_group_q: Added
gnutls_ffdhe_3072_group_q: Added
gnutls_ffdhe_4096_group_q: Added
gnutls_ffdhe_6144_group_q: Added
gnutls_ffdhe_8192_group_q: Added


Getting the Software
====================

GnuTLS may be downloaded directly from
<ftp://ftp.gnutls.org/gcrypt/gnutls/>;;.  A list of GnuTLS mirrors can
be found at <http://www.gnutls.org/download.html>;;.

Here are the XZ compressed sources:

  https://www.gnupg.org/ftp/gcrypt/gnutls/v3.6/gnutls-3.6.8.tar.xz

Here are OpenPGP detached signatures signed using key 0x96865171:

  https://www.gnupg.org/ftp/gcrypt/gnutls/v3.6/gnutls-3.6.8.tar.xz.sig

Note that it has been signed with my openpgp key:
pub   3104R/96865171 2008-05-04 [expires: 2028-04-29]
uid                  Nikos Mavrogiannopoulos <nmav <at> gnutls.org>
uid                  Nikos Mavrogiannopoulos <n.mavrogiannopoulos <at>
gmail.com>
sub   2048R/9013B842 2008-05-04 [expires: 2018-05-02]
sub   2048R/1404A91D 2008-05-04 [expires: 2018-05-02]

regards,
Nikos



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