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[gnutls:gnutls.git] / NEWS

GnuTLS NEWS -- History of user-visible changes.                -*- outline -*-
Copyright (C) 2000-2014 Free Software Foundation, Inc.
Copyright (C) 2013, 2014 Nikos Mavrogiannopoulos
See the end for copying conditions.

* Version 3.4.0 (unreleased)

** libgnutls: Use pthread_atfork() to detect fork.

** libgnutls: Added helper functions to obtain information on PKCS #8
structures.

** libgnutls: Use nettle's PBKDF2 implementation.

** libgnutls: gnutls_x509_crt_check_hostname() and friends will use
RFC6125 comparison of hostnames. That introduces a dependency on libidn.

** libgnutls: when printing a certificate request print the signature
algorithm as well.

** libgnutls: the verification flag GNUTLS_REQUIRE_KEY_PURPOSE_ON_INTERMEDIATE
is introduced, and forces the application of the desired key purpose (extended
key usage) into intermediate certificates. The verification result
GNUTLS_CERT_PURPOSE_MISMATCH is also introduced. 

** certtool: Added --p8-info option, which will print PKCS #8 information
even if the password is not available.

** certtool: --key-info option will print PKCS #8 encryption information
when available.

** certtool: --p12-info option will print PKCS #12 MAC and cipher information
when available.

** certtool: it will print the A-label (ACE) names in addition to UTF-8.

** API and ABI modifications:
gnutls_pkcs12_generate_mac2: Added
gnutls_pkcs12_mac_info: Added
gnutls_pkcs12_bag_enc_info: Added
gnutls_pkcs8_info: Added
gnutls_pkcs_schema_get_name: Added
gnutls_pkcs_schema_get_oid: Added
gnutls_pcert_export_x509: Added
gnutls_pcert_export_openpgp: Added
gnutls_pkcs11_privkey_cpy: Added
gnutls_x509_crq_get_signature_algorithm: Added
gnutls_x509_trust_list_iter_get_ca: Added
gnutls_x509_trust_list_iter_deinit: Added
gnutls_certificate_get_trust_list: Added
gnutls_privkey_export_x509: Added
gnutls_privkey_export_pkcs11: Added
gnutls_privkey_export_openpgp: Added
gnutls_privkey_import_ext3: Added
gnutls_certificate_get_x509_key: Added
gnutls_certificate_get_x509_crt: Added
gnutls_certificate_get_openpgp_key: Added
gnutls_certificate_get_openpgp_crt: Added


* Version 3.3.6 (released 2014-07-23)

** libgnutls: Use inet_ntop to print IP addresses when available

** libgnutls: gnutls_x509_crt_check_hostname and friends will also check
IP addresses, and match documented behavior. Reported by David Woodhouse.

** libgnutls: DSA key generation in FIPS140-2 mode doesn't allow 1024
bit parameters.

** libgnutls: fixed issue in gnutls_pkcs11_reinit() which prevented tokens
being usable after a reinitialization.

** libgnutls: fixed PKCS #11 private key operations after a fork.

** libgnutls: fixed PKCS #11 ECDSA key generation.

** libgnutls: The GNUTLS_CPUID_OVERRIDE environment variable can be used to 
explicitly enable/disable the use of certain CPU capabilities. Note that CPU
detection cannot be overriden, i.e., VIA options cannot be enabled on an Intel
CPU. The currently available options are:
  0x1: Disable all run-time detected optimizations
  0x2: Enable AES-NI
  0x4: Enable SSSE3
  0x8: Enable PCLMUL
  0x100000: Enable VIA padlock
  0x200000: Enable VIA PHE
  0x400000: Enable VIA PHE SHA512

** libdane: added dane_query_to_raw_tlsa(); patch by Simon Arlott.

** p11tool: use GNUTLS_SO_PIN to read the security officer's PIN if set.

** p11tool: ask for label when one isn't provided.

** p11tool: added --batch parameter to disable any interactivity.

** p11tool: will not implicitly enable so-login for certain types of
objects. That avoids issues with tokens that require different login
types.

** certtool/p11tool: Added the --curve parameter which allows to explicitly
specify the curve to use.

** API and ABI modifications:
gnutls_certificate_set_x509_trust_dir: Added
gnutls_x509_trust_list_add_trust_dir: Added


* Version 3.3.5 (released 2014-06-26)

** libgnutls: Added gnutls_record_recv_packet() and gnutls_packet_deinit().
These functions provide a variant of gnutls_record_recv() that avoids
the final memcpy of data.

** libgnutls: gnutls_x509_crl_iter_crt_serial() was added as a
faster variant of gnutls_x509_crl_get_crt_serial() when coping with
very large structures.

** libgnutls: When the decoding of a printable DN element fails, then treat
it as unknown and print its hex value rather than failing. That works around
an issue in a TURKTRST root certificate which improperly encodes the
X520countryName element.

** libgnutls: gnutls_x509_trust_list_add_trust_file() will return the number
of certificates present in a PKCS #11 token when loading it.

** libgnutls: Allow the post client hello callback to put the handshake on
hold, by returning GNUTLS_E_AGAIN or GNUTLS_E_INTERRUPTED.

** certtool: option --to-p12 will now consider --load-ca-certificate

** certtol: Added option to specify the PKCS #12 friendly name on command
line.

** p11tool: Allow marking a certificate copied to a token as a CA.

** API and ABI modifications:
GNUTLS_PKCS11_OBJ_FLAG_MARK_CA: Added
gnutls_x509_crl_iter_deinit: Added
gnutls_x509_crl_iter_crt_serial: Added
gnutls_record_recv_packet: Added
gnutls_packet_deinit: Added
gnutls_packet_get: Added


* Version 3.3.4 (released 2014-05-31)

** libgnutls: Updated Andy Polyakov's assembly code. That prevents a
crash on certain CPUs.

** API and ABI modifications:
No changes since last version.


* Version 3.3.3 (released 2014-05-30)

** libgnutls: Eliminated memory corruption issue in Server Hello parsing.
Issue reported by Joonas Kuorilehto of Codenomicon.

** libgnutls: gnutls_global_set_mutex() was modified to operate with the
new initialization process.

** libgnutls: Increased the maximum certificate size buffer
in the PKCS #11 subsystem.

** libgnutls: Check the return code of getpwuid_r() instead of relying
on the result value. That avoids issue in certain systems, when using
tofu authentication and the home path cannot be determined. Issue reported
by Viktor Dukhovni.

** libgnutls-dane: Improved dane_verify_session_crt(), which now attempts to
create a full chain. This addresses points from https://savannah.gnu.org/support/index.php?108552

** gnutls-cli: --dane will only check the end certificate if PKIX validation
has been disabled.

** gnutls-cli: --benchmark-soft-ciphers has been removed. That option cannot
be emulated with the implicit initialization of gnutls.

** certtool: Allow multiple organizations and organizational unit names to
be specified in a template.

** certtool: Warn when invalid configuration options are set to a template.

** ocsptool: Include path in ocsp request. This resolves #108582
(https://savannah.gnu.org/support/?108582), reported by Matt McCutchen.

** API and ABI modifications:
gnutls_credentials_get: Added


* Version 3.3.2 (released 2014-05-06)

** libgnutls: Added the 'very weak' certificate verification profile
that corresponds to 64-bit security level.

** libgnutls: Corrected file descriptor leak on random generator
initialization.

** libgnutls: Corrected file descriptor leak on PSK password file
reading. Issue identified using the Codenomicon TLS test suite.

** libgnutls: Avoid deinitialization if initialization has failed.

** libgnutls: null-terminate othername alternative names.

** libgnutls: gnutls_x509_trust_list_get_issuer() will operate correctly
on a PKCS #11 trust list.

** libgnutls: Several small bug fixes identified using valgrind and
the Codenomicon TLS test suite.

** libgnutls-dane: Accept a certificate using DANE if there is at least one
entry that matches the certificate. Patch by simon [at] arlott.org.

** libgnutls-guile: Fixed compilation issue.

** certtool: Allow exporting a CRL on DER format.

** certtool: The ECDSA keys generated by default use the SECP256R1 curve
which is supported more widely than the previously used SECP224R1.

** API and ABI modifications:
GNUTLS_PROFILE_VERY_WEAK: Added


* Version 3.3.1 (released 2014-04-19)

** libgnutls: Enforce more strict checks to heartbeat messages
concerning padding and payload. Suggested by Peter Dettman.

** libgnutls: Allow decoding PKCS #8 files with ECC parameters
from openssl.

** libgnutls: Several small bug fixes found by coverity.

** libgnutls: The conditionally available self-test functions
were moved to self-test.h.

** libgnutls: Fixed issue with the check of incoming data when two
different recv and send pointers have been specified. Reported and
investigated by JMRecio.

** libgnutls: Fixed issue in the RSA-PSK key exchange, which would 
result to illegal memory access if a server hint was provided. Reported
by André Klitzing.

** libgnutls: Fixed client memory leak in the PSK key exchange, if a
server hint was provided.

** libgnutls: Corrected the *get_*_othername_oid() functions.

** API and ABI modifications:
No changes since last version.


* Version 3.3.0 (released 2014-04-10)

** libgnutls: The initialization of the library was moved to a
constructor. That is, gnutls_global_init() is no longer required
unless linking with a static library or a system that does not
support library constructors.

** libgnutls: static libraries are not built by default.

** libgnutls: PKCS #11 initialization is delayed to first usage.
That avoids long delays in gnutls initialization due to broken PKCS #11
modules.

** libgnutls: The PKCS #11 subsystem is re-initialized "automatically"
on the first PKCS #11 API call after a fork. 

** libgnutls: certificate verification profiles were introduced
that can be specified as flags to verification functions. They
are enumerations in gnutls_certificate_verification_profiles_t
and can be converted to flags for use in a verification function
using GNUTLS_PROFILE_TO_VFLAGS().

** libgnutls: Added the ability to read system-specific initial
keywords, if they are prefixed with '@'. That allows a compile-time
specified configuration file to be used to read pre-configured priority
strings from. That can be used to impose system specific policies.

** libgnutls: Increased the default security level of priority
strings (NORMAL and PFS strings require at minimum a 1008 DH prime), 
and set a verification profile by default.  The LEGACY keyword is 
introduced to set the old defaults.

** libgnutls: Added support for the name constraints PKIX extension.
Currently only DNS names and e-mails are supported (no URIs, IPs
or DNs).

** libgnutls: Security parameter SEC_PARAM_NORMAL was renamed to 
SEC_PARAM_MEDIUM to avoid confusion with the priority string NORMAL.

** libgnutls: Added new API in x509-ext.h to handle X.509 extensions.
This API handles the X.509 extensions in isolation, allowing to parse
similarly formatted extensions stored in other structures.

** libgnutls: When generating DSA keys the macro GNUTLS_SUBGROUP_TO_BITS
can be used to specify a particular subgroup as the number of bits in
gnutls_privkey_generate; e.g., GNUTLS_SUBGROUP_TO_BITS(2048, 256).

** libgnutls: DH parameter generation is now delegated to nettle.
That unfortunately has the side-effect that DH parameters longer than
3072 bits, cannot be generated (not without a nettle update).

** libgnutls: Separated nonce RNG from the main RNG. The nonce
random number generator is based on salsa20/12.

** libgnutls: The buffer alignment provided to crypto backend is
enforced to be 16-byte aligned, when compiled with cryptodev
support. That allows certain cryptodev drivers to operate more
efficiently.

** libgnutls: Return error when a public/private key pair that doesn't
match is set into a credentials structure.

** libgnutls: Depend on p11-kit 0.20.0 or later.

** libgnutls: The new padding (%NEW_PADDING) experimental TLS extension has
been removed. It was not approved by IETF.

** libgnutls: The experimental xssl library is removed from the gnutls
distribution.

** libgnutls: Reduced the number of gnulib modules used in the main library.

** libgnutls: Added priority string %DISABLE_WILDCARDS.

** libgnutls: Added the more extensible verification function
gnutls_certificate_verify_peers(), that allows checking, in addition
to a peer's DNS hostname, for the key purpose of the end certificate
(via PKIX extended key usage).

** certtool: Timestamps for serial numbers were increased to 8 bytes,
and in batch mode to 12 (appended with 4 random bytes).

** certtool: When no CRL number is provided (or value set to -1), then
a time-based number will be used, similarly to the serial generation
number in certificates.

** certtool: Print the SHA256 fingerprint of a certificate in addition
to SHA1.

** libgnutls: Added --enable-fips140-mode configuration option (unsupported).
That option enables (when running on FIPS140-enabled system):
 o RSA, DSA and DH key generation as in FIPS-186-4 (using provable primes)
 o The DRBG-CTR-AES256 deterministic random generator from SP800-90A.
 o Self-tests on initialization on ciphers/MACs, public key algorithms 
   and the random generator.
 o HMAC-SHA256 verification of the library on load.
 o MD5 is included for TLS purposes but cannot be used by the high level
   hashing functions.
 o All ciphers except AES are disabled.
 o All MACs and hashes except GCM and SHA are disabled (e.g., HMAC-MD5).
 o All keys (temporal and long term) are zeroized after use.
 o Security levels are adjusted to the FIPS140-2 recommendations (rather
   than ECRYPT).

** API and ABI modifications:
GNUTLS_VERIFY_DO_NOT_ALLOW_WILDCARDS: Added
gnutls_certificate_verify_peers: Added
gnutls_privkey_generate: Added
gnutls_pkcs11_crt_is_known: Added
gnutls_fips140_mode_enabled: Added
gnutls_sec_param_to_symmetric_bits: Added
gnutls_pubkey_export_ecc_x962: Added (replaces gnutls_pubkey_get_pk_ecc_x962)
gnutls_pubkey_export_ecc_raw: Added (replaces gnutls_pubkey_get_pk_ecc_raw)
gnutls_pubkey_export_dsa_raw: Added (replaces gnutls_pubkey_get_pk_dsa_raw)
gnutls_pubkey_export_rsa_raw: Added (replaces gnutls_pubkey_get_pk_rsa_raw)
gnutls_pubkey_verify_params: Added
gnutls_privkey_export_ecc_raw: Added
gnutls_privkey_export_dsa_raw: Added
gnutls_privkey_export_rsa_raw: Added
gnutls_privkey_import_ecc_raw: Added
gnutls_privkey_import_dsa_raw: Added
gnutls_privkey_import_rsa_raw: Added
gnutls_privkey_verify_params: Added
gnutls_x509_crt_check_hostname2: Added
gnutls_openpgp_crt_check_hostname2: Added
gnutls_x509_name_constraints_init: Added
gnutls_x509_name_constraints_deinit: Added
gnutls_x509_crt_get_name_constraints: Added
gnutls_x509_name_constraints_add_permitted: Added
gnutls_x509_name_constraints_add_excluded: Added
gnutls_x509_crt_set_name_constraints: Added
gnutls_x509_name_constraints_get_permitted: Added
gnutls_x509_name_constraints_get_excluded: Added
gnutls_x509_name_constraints_check: Added
gnutls_x509_name_constraints_check_crt: Added
gnutls_x509_crl_get_extension_data2: Added
gnutls_x509_crt_get_extension_data2: Added
gnutls_x509_crq_get_extension_data2: Added
gnutls_subject_alt_names_init: Added
gnutls_subject_alt_names_deinit: Added
gnutls_subject_alt_names_get: Added
gnutls_subject_alt_names_set: Added
gnutls_x509_ext_import_subject_alt_names: Added
gnutls_x509_ext_export_subject_alt_names: Added
gnutls_x509_crl_dist_points_init: Added
gnutls_x509_crl_dist_points_deinit: Added
gnutls_x509_crl_dist_points_get: Added
gnutls_x509_crl_dist_points_set: Added
gnutls_x509_ext_import_crl_dist_points: Added
gnutls_x509_ext_export_crl_dist_points: Added
gnutls_x509_ext_import_name_constraints: Added
gnutls_x509_ext_export_name_constraints: Added
gnutls_x509_aia_init: Added
gnutls_x509_aia_deinit: Added
gnutls_x509_aia_get: Added
gnutls_x509_aia_set: Added
gnutls_x509_ext_import_aia: Added
gnutls_x509_ext_export_aia: Added
gnutls_x509_ext_import_subject_key_id: Added
gnutls_x509_ext_export_subject_key_id: Added
gnutls_x509_ext_export_authority_key_id: Added
gnutls_x509_ext_import_authority_key_id: Added
gnutls_x509_aki_init: Added
gnutls_x509_aki_get_id: Added
gnutls_x509_aki_get_cert_issuer: Added
gnutls_x509_aki_set_id: Added
gnutls_x509_aki_set_cert_issuer: Added
gnutls_x509_aki_deinit: Added
gnutls_x509_ext_import_private_key_usage_period: Added
gnutls_x509_ext_export_private_key_usage_period: Added
gnutls_x509_ext_import_basic_constraints: Added
gnutls_x509_ext_export_basic_constraints: Added
gnutls_x509_ext_import_key_usage: Added
gnutls_x509_ext_export_key_usage: Added
gnutls_x509_ext_import_proxy: Added
gnutls_x509_ext_export_proxy: Added
gnutls_x509_policies_init: Added
gnutls_x509_policies_deinit: Added
gnutls_x509_policies_get: Added
gnutls_x509_policies_set: Added
gnutls_x509_ext_import_policies: Added
gnutls_x509_ext_export_policies: Added
gnutls_x509_key_purpose_init: Added
gnutls_x509_key_purpose_deinit: Added
gnutls_x509_key_purpose_set: Added
gnutls_x509_key_purpose_get: Added
gnutls_x509_ext_import_key_purposes: Added
gnutls_x509_ext_export_key_purposes: Added
gnutls_digest_self_test: Added (conditionally)
gnutls_mac_self_test: Added (conditionally)
gnutls_pk_self_test: Added (conditionally)
gnutls_cipher_self_test: Added (conditionally)
gnutls_global_set_mem_functions: Deprecated


* Version 3.2.6 (released 2013-10-31)

** libgnutls: Support for TPM via trousers is now enabled by default.

** libgnutls: Camellia in GCM mode has been added in default priorities, and
GCM mode is prioritized over CBC in all of the default priority strings.

** libgnutls: Added ciphersuite GNUTLS_ECDHE_RSA_AES_256_CBC_SHA384.

** libgnutls: Fixed ciphersuites GNUTLS_ECDHE_ECDSA_CAMELLIA_256_CBC_SHA384,
GNUTLS_ECDHE_RSA_CAMELLIA_256_CBC_SHA384 and GNUTLS_PSK_CAMELLIA_128_GCM_SHA256. 
Reported by Stefan Buehler.

** libgnutls: Added support for ISO OID for RSA-SHA1 signatures.

** libgnutls: Minimum acceptable DH group parameters were increased to 767
bits from 727.

** libgnutls: Added function to obtain random data from PKCS #11 tokens.
Contributed by Wolfgang Meyer zu Bergsten.

** gnulib: updated.

** libdane: Fixed a one-off bug in dane_query_tlsa() introduced by the
previous fix. Reported by Tomas Mraz.

** p11tool: Added option generate-random.

** API and ABI modifications:
gnutls_pkcs11_token_get_random: Added


* Version 3.2.5 (released 2013-10-23)

** libgnutls: Documentation and build-time fixes.

** libgnutls: Allow the generation of DH groups of less than 700 bits.

** libgnutls: Added several combinations of ciphersuites with SHA256 and SHA384 as MAC,
as well as Camellia with GCM.

** libdane: Added interfaces to allow initialization of dane_query_t from
external DNS resolutions, and to allow direct verification of a certificate
chain against a dane_query_t. Contributed by Christian Grothoff.

** libdane: Fixed a buffer overflow in dane_query_tlsa(). This could be
triggered by a DNS server supplying more than 4 DANE records. Report and fix
by Christian Grothoff.

** srptool: Fixed index command line option. Patch by Attila Molnar.

** gnutls-cli: Added support for inline commands, using the
--inline-commands-prefix and --inline-commands options. Patch by Raj Raman.     

** certtool: pathlen constraint is now read correctly. Reported by
Christoph Seitz.

** API and ABI modifications:
gnutls_certificate_get_crt_raw: Added
dane_verify_crt_raw: Added
dane_raw_tlsa: Added


* Version 3.2.4 (released 2013-08-31)

** libgnutls: Fixes when session tickets and session DB are used.
Report and initial patch by Stefan Buehler.

** libgnutls: Added the RSA-PSK key exchange. Patch by by Frank Morgner,
based on previous patch by Bardenheuer GmbH and Bundesdruckerei GmbH.

** libgnutls: Added ciphersuites that use ARCFOUR with ECDHE. Patch
by Stefan Buehler.

** libgnutls: Added the PFS priority string option.

** libgnutls: Gnulib included files are strictly LGPLv2.

** libgnutls: Corrected gnutls_certificate_server_set_request().
Reported by Petr Pisar.

** API and ABI modifications:
gnutls_record_set_timeout: Exported


* Version 3.2.3 (released 2013-07-30)

** libgnutls: Fixes in parsing of priority strings. Patch by Stefan Buehler.

** libgnutls: Solve issue with received TLS packets that exceed 2^14. 
(this fixes a bug that was accidentally introduced in 3.2.2)

** libgnutls: Removed gnulib modules under LGPLv3 that could possibly be
used by the library.

** libgnutls: Fixes in gnutls_record_send_range(). Report and initial fix by 
Alfredo Pironti.

** API and ABI modifications:
gnutls_priority_kx_list: Added
gnutls_priority_mac_list: Added
gnutls_priority_cipher_list: Added


* Version 3.2.2 (released 2013-07-14)

** libgnutls: Several optimizations in the related to packet processing
subsystems.

** libgnutls: DTLS replay detection can now be disabled (to be used
in certain transport layers like SCTP).

** libgnutls: Fixes in SRTP extension generation when MKI is being
used.

** libgnutls: Added ability to set hooks before or after sending or receiving
any handshake message with gnutls_handshake_set_hook_function().

** API and ABI modifications:
GNUTLS_NO_REPLAY_PROTECTION: Added
gnutls_certificate_set_trust_list: Added
gnutls_cipher_get_tag_size: Added
gnutls_record_overhead_size: Added
gnutls_est_record_overhead_size: Added
gnutls_handshake_set_hook_function: Added
gnutls_handshake_description_get_name: Added
gnutls_digest_list: Added
gnutls_digest_get_id: Added
gnutls_digest_get_name: Added


* Version 3.2.1 (released 2013-06-01)

** libgnutls: Allow ECC when in SSL 3.0 to work-around a bug in certain
openssl versions.

** libgnutls: Fixes in interrupted function resumption. Report
and patch by Tim Kosse.

** libgnutls: Corrected issue when receiving client hello verify requests
in DTLS.

** libgnutls: Fixes in DTLS record overhead size calculations.

** libgnutls: gnutls_handshake_get_last_in() was fixed. Reported
by Mann Ern Kang.

** API and ABI modifications:
gnutls_session_set_id: Added


* Version 3.2.0 (released 2013-05-10)

** libgnutls: Use nettle's elliptic curve implementation.

** libgnutls: Added Salsa20 cipher

** libgnutls: Added UMAC-96 and UMAC-128

** libgnutls: Added ciphersuites involving Salsa20 and UMAC-96.
As they are not standardized they are defined using private ciphersuite 
numbers.

** libgnutls: Added support for DTLS 1.2.

** libgnutls: Added support for the Application Layer Protocol Negotiation
(ALPN) extension.

** libgnutls: Removed support for the RSA-EXPORT ciphersuites.

** libgnutls: Avoid linking to librt (that also avoids unnecessary
linking to pthreads if p11-kit isn't used).

** API and ABI modifications:
gnutls_cipher_get_iv_size: Added
gnutls_hmac_set_nonce: Added
gnutls_mac_get_nonce_size: Added


* Version 3.1.10 (released 2013-03-22)

** certtool: When generating PKCS #12 files use by default the 
ARCFOUR (RC4) cipher to be compatible with devices that don't
support AES with PKCS #12.

** libgnutls: Load CA certificates in android 4.x systems.

** libgnutls: Optimized CA certificate loading.

** libgnutls: Private keys are overwritten on deinitialization.

** libgnutls: PKCS #11 slots are scanned only when needed, not
on initialization. This speeds up gnutls initialization when smart
cards are present.

** libgnutls: Corrected issue in the (deprecated) external key
signing interface, when used with TLS 1.2. Reported by Bjorn H. Christensen.

** libgnutls: Fixes in openpgp handshake with fingerprints. Reported by 
Joke de Buhr.

** libgnutls-dane: Updated DANE verification options.

** configure: Trust store file must be explicitly set or unset when 
cross compiling.

** API and ABI modifications:
gnutls_x509_crt_get_issuer_dn2: Added
gnutls_x509_crt_get_dn2: Added
gnutls_x509_crl_get_issuer_dn2: Added
gnutls_x509_crq_get_dn2: Added
gnutls_x509_trust_list_remove_trust_mem: Added
gnutls_x509_trust_list_remove_trust_file: Added
gnutls_x509_trust_list_remove_cas: Added
gnutls_session_get_desc: Added
gnutls_privkey_sign_raw_data: Added
gnutls_privkey_status: Added


* Version 3.1.9 (released 2013-02-27)

** certtool: Option --to-p12 will now ask for a password to generate
a PKCS #12 file from an encrypted key file. Reported by Yan Fiz.

** libgnutls: Corrected issue in gnutls_pubkey_verify_data().

** libgnutls: Corrected parsing issue in XMPP within a subject 
alternative name. Reported by James Cloos.

** libgnutls: gnutls_pkcs11_reinit() will reinitialize all PKCS #11
modules, and not only the ones loaded via p11-kit.

** libgnutls: Added function to check whether the private key is
still available (inserted).

** libgnutls: Try to detect fork even during nonce generation.

** API and ABI modifications:
gnutls_handshake_set_random: Added
gnutls_transport_set_int2: Added
gnutls_transport_get_int2: Added
gnutls_transport_get_int: Added
gnutls_record_cork: Exported
gnutls_record_uncork: Exported
gnutls_pkcs11_privkey_status: Added


* Version 3.1.8 (released 2013-02-10)

** libgnutls: Fixed issue in gnutls_x509_privkey_import2() which didn't return
GNUTLS_E_DECRYPTION_FAILED in all cases, and affect certtool operation
with encrypted keys. Reported by Yan Fiz.

** libgnutls: The minimum DH bits accepted by priorities NORMAL and
PERFORMANCE was set to previous defaults 727 bits. Reported by Diego
Elio Petteno.

** libgnutls: Corrected issue which prevented gnutls_pubkey_verify_hash() 
to operate with long keys. Reported by Erik A Jensen.

** API and ABI modifications:
No changes since last version.


* Version 3.1.7 (released 2013-02-04)

** certtool: Added option "dn" which allows to directly set the DN
in a template from an RFC4514 string.

** danetool: Added options: --dlv and --insecure. Suggested by Paul Wouters.

** libgnutls-xssl: Added a new library to simplify GnuTLS usage.

** libgnutls-dane: Added function to specify a DLV file.

** libgnutls: Heartbeat code was made optional.

** libgnutls: Fixes in server side of DTLS-0.9.

** libgnutls: DN variable 'T' was expanded to 'title'.

** libgnutls: Fixes in record padding parsing to prevent a timing attack. 
Issue reported by Kenny Paterson and Nadhem Alfardan.

** libgnutls: Added functions to directly set the DN in a certificate
or request from an RFC4514 string.

** libgnutls: Optimizations in the random generator. The re-seeding of
it is now explicitly done on every session deinit.

** libgnutls: Simplified the DTLS sliding window implementation.

** libgnutls: The minimum DH bits accepted by a client are now set
by the specified priority string. The current values correspond to the
previous defaults (727 bits), except for the SECURE128 and SECURE192
strings which increase the minimum to 1248 and 1776 respectively.

** libgnutls: Added the gnutls_record_cork() and uncork API to enable 
buffering in sending application data.

** libgnutls: Removed default random padding, and added a length-hiding interface 
instead.  Both the server and the client must support this extension. Whether 
length-hiding can be used on a given session can be checked using
gnutls_record_can_use_length_hiding(). Contributed by Alfredo Pironti.

** libgnutls: Added the experimental %NEW_PADDING priority string. It enables 
a new padding mechanism in TLS allowing arbitrary padding in TLS records
in all ciphersuites, which makes length-hiding more efficient and solves 
the issues with timing attacks on CBC ciphersuites.

** libgnutls: Corrected gnutls_cipher_decrypt2() when used with AEAD
ciphers (i.e., AES-GCM). Reported by William McGovern.

** API and ABI modifications:
gnutls_db_check_entry_time: Added
gnutls_record_set_timeout: Added
gnutls_record_get_random_padding_status: Added
gnutls_x509_crt_set_dn: Added
gnutls_x509_crt_set_issuer_dn: Added
gnutls_x509_crq_set_dn: Added
gnutls_range_split: Added
gnutls_record_send_range: Added
gnutls_record_set_max_empty_records: Added
gnutls_record_can_use_length_hiding: Added
gnutls_rnd_refresh: Added
xssl_deinit: Added
xssl_flush: Added
xssl_read: Added
xssl_getdelim: Added
xssl_write: Added
xssl_printf: Added
xssl_sinit: Added
xssl_client_init: Added
xssl_server_init: Added
xssl_get_session: Added
xssl_get_verify_status: Added
xssl_cred_init: Added
xssl_cred_deinit: Added
dane_state_set_dlv_file: Added
GNUTLS_SEC_PARAM_EXPORT: Added
GNUTLS_SEC_PARAM_VERY_WEAK: Added


* Version 3.1.6 (released 2013-01-02)

** libgnutls: Fixed record padding parsing issue. Reported by Kenny
Paterson and Nadhem Alfardan.

** libgnutls: Several updates in the ASN.1 string handling subsystem.

** libgnutls: gnutls_x509_crt_get_policy() allows for a list of zero
policy qualifiers.

** libgnutls: Ignore heartbeat messages when received out-of-order,
instead of issuing an error.

** libgnutls: Stricter RSA PKCS #1 1.5 encoding and decoding. Reported
by Kikuchi Masashi.

** libgnutls: TPM support is disabled by default because GPL programs
cannot link with it. Use --with-tpm to enable it.

** libgnutls-guile: Fixed parallel compilation issue.

** gnutls-cli: It will try to connect to all possible returned addresses
before failing.

** API and ABI modifications:
No changes since last version.


* Version 3.1.5 (released 2012-11-24)

** libgnutls: Added functions to parse the certificates policies
extension.

** libgnutls: Handle BMPString (UCS-2) encoding in the Distinguished
Name by translating it to UTF-8 (works on windows or systems with iconv).

** libgnutls: Added PKCS #11 key generation function that returns the 
public key on generation.

** libgnutls: Corrected bug in priority string parsing, that mostly 
affected combined levels. Patch by Tim Kosse.

** certtool: The --pubkey-info option can be combined with the
--load-privkey or --load-request to print the corresponding public keys.

** certtool: It is able to set certificate policies via a template.

** certtool: Added --hex-numbers option which prints big numbers in 
an easier to parse format.

** p11tool: After key generation, outputs the public key (useful in
tokens that do not store the public key).

** danetool: It is being built even without libgnutls-dane (the
--check functionality is disabled though).

** API and ABI modifications:
gnutls_pkcs11_privkey_generate2: Added
gnutls_x509_crt_get_policy: Added
gnutls_x509_crt_set_policy: Added
gnutls_x509_policy_release: Added
gnutls_pubkey_import_x509_crq: Added
gnutls_pubkey_print: Added
GNUTLS_CRT_PRINT_FULL_NUMBERS: Added


* Version 3.1.4 (released 2012-11-10)

** libgnutls: gnutls_certificate_verify_peers2() will set flags depending on
the available revocation data validity.

** libgnutls: Added gnutls_certificate_verification_status_print(),
a function to print the verification status code in human readable text.

** libgnutls: Added priority string %VERIFY_DISABLE_CRL_CHECKS.

** libgnutls: Simplified certificate verification by adding
gnutls_certificate_verify_peers3().

** libgnutls: Added support for extension to establish keys for SRTP.
Contributed by Martin Storsjo.

** libgnutls: The X.509 verification functions check the key
usage bits and pathlen constraints and on failure output 
GNUTLS_CERT_SIGNER_CONSTRAINTS_FAILURE.

** libgnutls: gnutls_x509_crl_verify() includes the time checks.

** libgnutls: Added verification flag GNUTLS_VERIFY_DO_NOT_ALLOW_UNSORTED_CHAIN
and made GNUTLS_VERIFY_ALLOW_UNSORTED_CHAIN the default.

** libgnutls: Always tolerate key usage violation errors from the side
of the peer, but also notify via an audit message.

** gnutls-cli: Added --local-dns option.

** danetool: Corrected bug that prevented loading PEM files.

** danetool: Added --check option to allow querying and verifying
a site's DANE data.

** libgnutls-dane: Added pkg-config file for the library.

** API and ABI modifications:
gnutls_session_get_id2: Added
gnutls_sign_is_secure: Added
gnutls_certificate_verify_peers3: Added
gnutls_ocsp_status_request_is_checked: Added
gnutls_certificate_verification_status_print: Added
gnutls_srtp_set_profile: Added
gnutls_srtp_set_profile_direct: Added
gnutls_srtp_get_selected_profile: Added
gnutls_srtp_get_profile_name: Added
gnutls_srtp_get_profile_id: Added
gnutls_srtp_get_keys: Added
gnutls_srtp_get_mki: Added
gnutls_srtp_set_mki: Added
gnutls_srtp_profile_t: Added
dane_cert_type_name: Added
dane_match_type_name: Added
dane_cert_usage_name: Added
dane_verification_status_print: Added
GNUTLS_CERT_REVOCATION_DATA_SUPERSEDED: Added
GNUTLS_CERT_REVOCATION_DATA_ISSUED_IN_FUTURE: Added
GNUTLS_CERT_SIGNER_CONSTRAINTS_FAILURE: Added
GNUTLS_CERT_UNEXPECTED_OWNER: Added
GNUTLS_VERIFY_DO_NOT_ALLOW_UNSORTED_CHAIN: Added


* Version 3.1.3 (released 2012-10-12)

** libgnutls: Added support for the OCSP Certificate Status
extension.

** libgnutls: gnutls_certificate_verify_peers2() will use the OCSP
certificate status extension in verification.

** libgnutls: Bug fixes in gnutls_x509_privkey_import_openssl().

** libgnutls: Increased maximum password length in the PKCS #12
functions.

** libgnutls: Fixed the receipt of session tickets during session resumption.
Reported by danblack at http://savannah.gnu.org/support/?108146

** libgnutls: Added functions to export structures in an allocated buffer.

** libgnutls: Added gnutls_ocsp_resp_check_crt() to check whether the OCSP
response corresponds to the given certificate.

** libgnutls: In client side gnutls_init() enables the session ticket and
OCSP certificate status request extensions by default. The flag
GNUTLS_NO_EXTENSIONS can be used to prevent that.

** libgnutls: Several updates in the OpenPGP code. The generating code
is fully RFC6091 compliant and RFC5081 support is only supported in client
mode.

** libgnutls-dane: Added. It is a library to provide DANE with DNSSEC 
certificate verification.

** gnutls-cli: Added --dane option to enable DANE certificate verification.

** danetool: Added tool to generate DANE TLSA Resource Records (RR).

** API and ABI modifications:
gnutls_certificate_get_peers_subkey_id: Added
gnutls_certificate_set_ocsp_status_request_function: Added
gnutls_certificate_set_ocsp_status_request_file: Added
gnutls_ocsp_status_request_enable_client: Added
gnutls_ocsp_status_request_get: Added
gnutls_ocsp_resp_check_crt: Added
gnutls_dh_params_export2_pkcs3: Added
gnutls_pubkey_export2: Added
gnutls_x509_crt_export2: Added
gnutls_x509_dn_export2: Added
gnutls_x509_crl_export2: Added
gnutls_pkcs7_export2: Added
gnutls_x509_privkey_export2: Added
gnutls_x509_privkey_export2_pkcs8: Added
gnutls_x509_crq_export2: Added
gnutls_openpgp_crt_export2: Added
gnutls_openpgp_privkey_export2: Added
gnutls_pkcs11_obj_export2: Added
gnutls_pkcs12_export2: Added
gnutls_pubkey_import_openpgp_raw: Added
gnutls_pubkey_import_x509_raw: Added
dane_state_init: Added
dane_state_deinit: Added
dane_query_tlsa: Added
dane_query_status: Added
dane_query_entries: Added
dane_query_data: Added
dane_query_deinit: Added
dane_verify_session_crt: Added
dane_verify_crt: Added
dane_strerror: Added


* Version 3.1.2 (released 2012-09-26)

** libgnutls: Fixed bug in gnutls_x509_trust_list_add_system_trust()
and gnutls_x509_trust_list_add_trust_mem() that prevented the loading
of certificates in the windows platform.

** libgnutls: Corrected bug in OpenPGP subpacket encoding.

** libgnutls: Added support for DTLS/TLS heartbeats by Olga Smolenchuk.
(the work was done during Google Summer of Code).

** libgnutls: Added X.509 certificate verification flag 
GNUTLS_VERIFY_ALLOW_UNSORTED_CHAIN. This flag allows the verification
of unsorted certificate chains and is enabled by default for
TLS certificate verification (if gnutls_certificate_set_verify_flags() 
does not override it).

** libgnutls: Prints warning on certificates that contain keys of
an insecure level. If the %COMPAT priority flag is not specified
the TLS connection fails.

** libgnutls: Correctly restore gnutls_record_recv() in DTLS mode
if interrupted during the retrasmition of handshake data.

** libgnutls: Better mingw32 support (patch by LRN).

** libgnutls: The %COMPAT keyword, if specified, will tolerate
key usage violation errors (they are far too common to ignore).

** libgnutls: Added GNUTLS_STATELESS_COMPRESSION flag to gnutls_init(),
which provides a tool to counter compression-related attacks where
parts of the data are controlled by the attacker _and_ are placed in
separate records (use with care - do not use compression if not sure).

** libgnutls: Depends on libtasn1 2.14 or later.

** certtool: Prints the number of bits of the public key algorithm
parameter in a private key.

** API and ABI modifications:
gnutls_x509_privkey_get_pk_algorithm2: Added
gnutls_heartbeat_ping: Added
gnutls_heartbeat_pong: Added
gnutls_heartbeat_allowed: Added
gnutls_heartbeat_enable: Added
gnutls_heartbeat_set_timeouts: Added
gnutls_heartbeat_get_timeout: Added
GNUTLS_SEC_PARAM_WEAK: Added
GNUTLS_SEC_PARAM_INSECURE: Added

* Version 3.1.1 (released 2012-09-02)

** gnutls-serv: Listens on IPv6. Patch by Bernhard R. Link.

** certtool: Changes in password handling of certtool.
Ask password when required and only if the '--password' option is not
given. If the '--password' option is given during key generation then 
assume the PKCS #8 file format, instead of ignoring the password.

** tpmtool: No longer asks for key password in registered keys.

** libgnutls: Elliptic curve code was optimized by Ilya Tumaykin.
wmNAF is now used for point multiplication and other optimizations.
(the major part of the work was done during Google Summer of Code).

** libgnutls: The default pull_timeout_function only uses select
instead of a combination of select() and recv() to prevent issues
when used in stream sockets in some systems.

** libgnutls: Be tolerant in ECDSA signature violations (e.g. using
SHA256 with a SECP384 curve instead of SHA-384), to interoperate with
openssl.

** libgnutls: Fixed DSA and ECDSA signature generation in smart
cards. Thanks to Andreas Schwier from cardcontact.de for providing
me with ECDSA capable smart cards.

** API and ABI modifications:
gnutls_sign_algorithm_get: Added
gnutls_sign_get_hash_algorithm: Added
gnutls_sign_get_pk_algorithm: Added


* Version 3.1.0 (released 2012-08-15)

** libgnutls: Added direct support for TPM as a cryptographic module 
in gnutls/tpm.h. TPM keys can be used in functions accepting files
using URLs of the following types:
  tpmkey:file=/path/to/file
  tpmkey:uuid=7f468c16-cb7f-11e1-824d-b3a4f4b20343;storage=user

** libgnutls: Priority string level keywords can be combined.
For example the string "SECURE256:+SUITEB128" is now allowed.

** libgnutls: requires libnettle 2.5.

** libgnutls: Use the PKCS #1 1.5 encoding provided by nettle (2.5)
for encryption and signatures.

** libgnutls: Added GNUTLS_CERT_SIGNATURE_FAILURE to differentiate between
generic errors and signature verification errors in the verification
functions.

** libgnutls: Added gnutls_pkcs12_simple_parse() as a helper function
to simplify parsing in most PKCS #12 use cases.

** libgnutls: gnutls_certificate_set_x509_simple_pkcs12_file() adds
the whole certificate chain (if any) to the credentials structure, instead
of only the end-user certificate.

** libgnutls: Key import functions such as gnutls_pkcs12_simple_parse()
and gnutls_x509_privkey_import_pkcs8(), return consistently 
GNUTLS_E_DECRYPTION_FAILED if the input structure is encrypted but no 
password was provided.

** libgnutls: Added gnutls_handshake_set_timeout() a function that
allows to set the maximum time spent in a handshake.

** libgnutlsxx: Added session::set_transport_vec_push_function. Patch
by Alexandre Bique.

** tpmtool: Added. It is a tool to generate private keys in the
TPM.

** gnutls-cli: --benchmark-tls was split to --benchmark-tls-kx
and --benchmark-tls-ciphers

** certtool: generated PKCS #12 structures may hold more than one
private key. Patch by Lucas Fisher.

** certtool: Added option --null-password to generate/decrypt keys
that use a NULL password (in schemas that distinguish between NULL
an empty passwords).

** minitasn1: Upgraded to libtasn1 version 2.13.

** API and ABI modifications:
GNUTLS_CERT_SIGNATURE_FAILURE: Added
GNUTLS_CAMELLIA_192_CBC: Added
GNUTLS_PKCS_NULL_PASSWORD: Added
gnutls_url_is_supported: Added
gnutls_pkcs11_obj_list_import_url2: Added
gnutls_pkcs11_obj_set_pin_function: Added
gnutls_pkcs11_privkey_set_pin_function: Added
gnutls_pkcs11_get_pin_function: Added
gnutls_privkey_import_tpm_raw: Added
gnutls_privkey_import_tpm_url: Added
gnutls_privkey_import_pkcs11_url: Added
gnutls_privkey_import_openpgp_raw: Added
gnutls_privkey_import_x509_raw: Added
gnutls_privkey_import_ext2: Added
gnutls_privkey_import_url: Added
gnutls_privkey_set_pin_function: Added
gnutls_tpm_privkey_generate: Added
gnutls_tpm_key_list_deinit: Added
gnutls_tpm_key_list_get_url: Added
gnutls_tpm_get_registered: Added
gnutls_tpm_privkey_delete: Added
gnutls_pubkey_import_tpm_raw: Added
gnutls_pubkey_import_tpm_url: Added
gnutls_pubkey_import_url: Added
gnutls_pubkey_verify_hash2: Added
gnutls_pubkey_set_pin_function: Added
gnutls_x509_privkey_import2: Added
gnutls_x509_privkey_import_openssl: Added
gnutls_x509_crt_set_pin_function: Added
gnutls_load_file: Added
gnutls_pkcs12_simple_parse: Added
gnutls_certificate_set_x509_system_trust: Added
gnutls_certificate_set_pin_function: Added
gnutls_x509_trust_list_add_system_trust: Added
gnutls_x509_trust_list_add_trust_file: Added
gnutls_x509_trust_list_add_trust_mem: Added
gnutls_pk_to_sign: Added
gnutls_handshake_set_timeout: Added
gnutls_pubkey_verify_hash: Deprecated (use gnutls_pubkey_verify_hash2)
gnutls_pubkey_verify_data: Deprecated (use gnutls_pubkey_verify_data2)


* Version 3.0.22 (released 2012-08-04)

** libgnutls: gnutls_certificate_set_x509_system_trust()
is now supported on OpenBSD.

** libgnutls: When verifying a certificate chain make sure it is chain.
If the chain is wronly interrupted at some point then truncate it,
and only try to verify the correct part. Patch by David Woodhouse

** libgnutls: Restored the behavior of gnutls_x509_privkey_import_pkcs8()
which now may (again) accept a NULL password.

** certtool: Allow the user to choose the hash algorithm
when signing certificate request or certificate revocation list.
Patch by Petr Písař.

** API and ABI modifications:
No changes since last version.


* Version 3.0.21 (released 2012-07-02)

** libgnutls: fixed bug in gnutls_x509_privkey_import() 
that prevented the loading of EC private keys when DER
encoded. Reported by David Woodhouse.

** libgnutls: In DTLS larger to mtu records result to 
GNUTLS_E_LARGE_PACKET instead of being truncated.

** libgnutls: gnutls_dtls_get_data_mtu() is more precise. Based
on patch by David Woodhouse.

** libgnutls: Fixed memory leak in PKCS #8 key import.

** libgnutls: Added support for an old version of the DTLS protocol
used by openconnect vpn client for compatibility with Cisco's AnyConnect 
SSL VPN. It is marked as GNUTLS_DTLS0_9. Do not use it for newer protocols
as it has issues.

** libgnutls: Corrected bug that prevented resolving PKCS #11 URLs 
if only the label is specified. Patch by David Woodhouse.

** libgnutls: When EMSGSIZE errno is seen then GNUTLS_E_LARGE_PACKET
is returned.

** API and ABI modifications:
gnutls_dtls_set_data_mtu: Added
gnutls_session_set_premaster: Added


* Version 3.0.20 (released 2012-06-05)

** libgnutls: Corrected bug which prevented the parsing of
handshake packets spanning multiple records.

** libgnutls: Check key identifiers when checking for an issuer.

** libgnutls: Added gnutls_pubkey_verify_hash2()

** libgnutls: Added gnutls_certificate_set_x509_system_trust()
that loads the trusted CA certificates from system locations
(e.g. trusted storage in windows and CA bundle files in other systems).

** certtool: Added support for the URI subject alternative
name type in certtool.

** certtool: Increase to 128 the maximum number of distinct options
(e.g. dns_names) allowed.

** gnutls-cli: If --print-cert is given, print the certificate, 
even on verification failure.

** API and ABI modifications:
gnutls_pk_to_sign: Added
gnutls_pubkey_verify_hash2: Added
gnutls_certificate_set_x509_system_trust: Added


* Version 3.0.19 (released 2012-04-22)

** libgnutls: When decoding a PKCS #11 URL the pin-source field
is assumed to be a file that stores the pin. Based on patch
by David Smith.

** libgnutls: gnutls_record_check_pending() no longer
returns unprocessed data, and thus ensure the non-blocking
of the next call to gnutls_record_recv(). 

** libgnutls: Added strict tests in Diffie-Hellman and
SRP key exchange public keys.

** libgnutls: in ECDSA and DSA TLS 1.2 authentication be less
strict in hash selection, and allow a stronger hash to
be used than the appropriate, to improve interoperability
with openssl.

** tests: Disabled floating point test, and corrections
in pkcs12 decoding tests.

** API and ABI modifications:
No changes since last version.


* Version 3.0.18 (released 2012-04-02)

** certtool: Avoid a Y2K38 bug when generating certificates.
Patch by Robert Millan.

** libgnutls: Make sure that GNUTLS_E_PREMATURE_TERMINATION
is returned on premature termination (and added unit test).

** libgnutls: Fixes for W64 API. Patch by B. Scott Michel.

** libgnutls: Corrected VIA padlock detection for old 
VIA processors. Reported by Kris Karas.

** libgnutls: Updated assembler files.

** libgnutls: Time in generated certificates is stored
as GeneralizedTime instead of UTCTime (which only stores
2 digits of a year).

** minitasn1: Upgraded to libtasn1 version 2.13 (pre-release).

** API and ABI modifications:
gnutls_x509_crt_set_private_key_usage_period: Added
gnutls_x509_crt_get_private_key_usage_period: Added
gnutls_x509_crq_set_private_key_usage_period: Added
gnutls_x509_crq_get_private_key_usage_period: Added
gnutls_session_get_random: Added


* Version 3.0.17 (released 2012-03-17)

** command line apps: Always link with local libopts.

** API and ABI modifications:
No changes since last version.


* Version 3.0.16 (released 2012-03-16)

** minitasn1: Upgraded to libtasn1 version 2.12 (pre-release).

** libgnutls: Corrected SRP-RSA ciphersuites when used under TLS 1.2.

** libgnutls: included assembler files for MacOSX.

** p11tool: Small fixes in handling of the --private command 
line option.

** certtool: The template option allows for setting the domain
component (DC) option of the distinguished name, and the ocsp_uri
as well as the ca_issuers_uri options.

** API and ABI modifications:
gnutls_x509_crt_set_authority_info_access: Added


* Version 3.0.15 (released 2012-03-02)

** test suite: Only run under valgrind in the development
system (the full git repository)

** command line apps: Link with local libopts if the 
installed is an old one.

** libgnutls: Eliminate double free during SRP
authentication. Reported by Peter Penzov.

** libgnutls: Corrections in record packet parsing.
Reported by Matthew Hall.

** libgnutls: Cryptodev updates and fixes.

** libgnutls: Corrected issue with select() that affected
FreeBSD. This prevented establishing DTLS sessions.
Reported by Andreas Metzler.

** libgnutls: Corrected rehandshake and resumption
operations in DTLS. Reported by Sean Buckheister.

** libgnutls: PKCS #11 objects that do not have ID
no longer crash listing. Reported by Sven Geggus.

** API and ABI modifications:
No changes since last version.


* Version 3.0.14 (released 2012-02-24)

** command line apps: Included libopts doesn't get installed
by default.

** libgnutls: Eliminate double free on wrongly formatted
certificate list. Reported by Remi Gacogne.

** libgnutls: cryptodev code corrected, updated to account
for hashes and GCM mode.

** libgnutls: Eliminated memory leak in PCKS #11 initialization.
Report and fix by Sam Varshavchik.

** API and ABI modifications:
No changes since last version.


* Version 3.0.13 (released 2012-02-18)

** gnutls-cli: added the --ocsp option which will verify
the peer's certificate with OCSP.

** gnutls-cli: added the --tofu option and if specified, gnutls-cli
will use an ssh-style authentication method.

** gnutls-cli: if no --x509cafile is provided a default is
assumed (/etc/ssl/certs/ca-certificates.crt), if it exists.

** ocsptool: Added --ask parameter, to verify a certificate's
status from an ocsp server.

** command line apps: Use gnu autogen (libopts) to parse command
line arguments and template files.

** tests: Added stress test for DTLS packet losses and 
out-of-order receival. Contributed by Sean Buckheister.

** libgnutls: Several updates and corrections in the DTLS
DTLS lost packet handling and retransmission timeouts.
Report and patches by Sean Buckheister.

** libgnutls: Added new functions to easily allow the usage of
a trust on first use (SSH-style) authentication.

** libgnutls: SUITEB128 and SUITEB192 priority strings account
for the RFC6460 requirements.

** libgnutls: Added new security parameter GNUTLS_SEC_PARAM_LEGACY
to account for security level of 96-bits.

** libgnutls: In client side if server does not advertise any
known CAs and only a single certificate is set in the credentials,
sent that one.

** libgnutls: Added functions to parse authority key identifiers
when stored as a 'general name' and serial combo.

** libgnutls: Added function to force explicit reinitialization
of PKCS #11 modules. This is required on the child process after
a fork (if PKCS #11 functionality is desirable).

** libgnutls: Depend on p11-kit 0.11.

** API and ABI modifications:
gnutls_dtls_get_timeout: Added
gnutls_verify_stored_pubkey: Added
gnutls_store_pubkey: Added
gnutls_store_commitment: Added
gnutls_x509_crt_get_authority_key_gn_serial: Added
gnutls_x509_crl_get_authority_key_gn_serial: Added
gnutls_pkcs11_reinit: Added
gnutls_ecc_curve_list: Added
gnutls_priority_certificate_type_list: Added
gnutls_priority_sign_list: Added
gnutls_priority_protocol_list: Added
gnutls_priority_compression_list: Added
gnutls_priority_ecc_curve_list: Added
gnutls_tdb_init: Added
gnutls_tdb_set_store_func: Added
gnutls_tdb_set_store_commitment_func: Added
gnutls_tdb_set_verify_func: Added
gnutls_tdb_deinit: Added


* Version 3.0.12 (released 2012-01-20)

** libgnutls: Added OCSP support.
There is a new header file gnutls/ocsp.h and a set of new functions
under the gnutls_ocsp namespace.  Currently the functionality provided
is to parse and extract information from OCSP requests/responses, to
generate OCSP requests and to verify OCSP responses.  See the manual
for more information.  Run ./configure with --disable-ocsp to build
GnuTLS without OCSP support.

This work was sponsored by Smoothwall <http://smoothwall.net/>.

** ocsptool: Added new command line tool.
The tool can parse OCSP request/responses, generate OCSP requests and
verify OCSP responses.  See the manual for more information.

** certtool: --outder option now works for private
and public keys as well.

** libgnutls: Added error code GNUTLS_E_NO_PRIORITIES_WERE_SET
to warn when no or insufficient priorities were set.

** libgnutls: Corrected an alignment issue in ECDH
key generation which prevented some keys from being
correctly aligned in rare circumstances.

** libgnutls: Corrected memory leaks in DH parameter
generation and ecc_projective_check_point().

** libgnutls: Added gnutls_x509_dn_oid_name() to 
return a descriptive name of a DN OID.

** API and ABI modifications:
gnutls_pubkey_encrypt_data: Added
gnutls_x509_dn_oid_name: Added
gnutls_session_resumption_requested: Added
gnutls/ocsp.h: Added new header file.
gnutls_ocsp_print_formats_t: Added new type.
gnutls_ocsp_resp_status_t: Added new type.
gnutls_ocsp_cert_status_t: Added new type.
gnutls_x509_crl_reason_t: Added new type.
gnutls_ocsp_req_add_cert: Added.
gnutls_ocsp_req_add_cert_id: Added.
gnutls_ocsp_req_deinit: Added.
gnutls_ocsp_req_export: Added.
gnutls_ocsp_req_get_cert_id: Added.
gnutls_ocsp_req_get_extension: Added.
gnutls_ocsp_req_get_nonce: Added.
gnutls_ocsp_req_get_version: Added.
gnutls_ocsp_req_import: Added.
gnutls_ocsp_req_init: Added.
gnutls_ocsp_req_print: Added.
gnutls_ocsp_req_randomize_nonce: Added.
gnutls_ocsp_req_set_extension: Added.
gnutls_ocsp_req_set_nonce: Added.
gnutls_ocsp_resp_deinit: Added.
gnutls_ocsp_resp_export: Added.
gnutls_ocsp_resp_get_certs: Added.
gnutls_ocsp_resp_get_extension: Added.
gnutls_ocsp_resp_get_nonce: Added.
gnutls_ocsp_resp_get_produced: Added.
gnutls_ocsp_resp_get_responder: Added.
gnutls_ocsp_resp_get_response: Added.
gnutls_ocsp_resp_get_signature: Added.
gnutls_ocsp_resp_get_signature_algorithm: Added.
gnutls_ocsp_resp_get_single: Added.
gnutls_ocsp_resp_get_status: Added.
gnutls_ocsp_resp_get_version: Added.
gnutls_ocsp_resp_import: Added.
gnutls_ocsp_resp_init: Added.
gnutls_ocsp_resp_print: Added.
gnutls_ocsp_resp_verify: Added.

* Version 3.0.11 (released 2012-01-06)

** libgnutls: Corrected functionality of 
gnutls_record_get_direction(). Reported by Philip Allison.

** libgnutls: Provide less timing information when decoding
TLS/DTLS record packets. Patch by Nadhem Alfardan.

** API and ABI modifications:
No changes since last version.


* Version 3.0.10 (released 2012-01-04)

** gnutls-cli/serv: Set don't fragment bit in DTLS sessions
in Linux as well as in BSD.

** gnutls-cli: Fixed reading from windows terminals.

** libgnutls: When GNUTLS_OPENPGP_FMT_BASE64 is specified
the stream is assumed to be base64 encoded (previously
the encoding was auto-detected). This avoids a decoding
issue in windows systems.

** libgnutls: Corrected ciphersuite GNUTLS_ECDHE_PSK_AES_256_CBC_SHA384

** libgnutls: Added ciphersuites: GNUTLS_PSK_WITH_AES_256_GCM_SHA384
and GNUTLS_DHE_PSK_WITH_AES_256_GCM_SHA384.

** libgnutls: Added function gnutls_random_art() to convert 
fingerprints to images (currently ascii-art).

** libgnutls: Corrected bug in DSA private key parsing, which
prevented the verification of the key.

** API and ABI modifications:
gnutls_random_art: Added


* Version 3.0.9 (released 2011-12-13)

** certtool: Added new parameter --dh-info.

** certtool: -l option was overloaded so if combined with --priority
it will only list the ciphersuites that are enabled by the given
priority string.

** libgnutls: Added new priority string %SERVER_PRECEDENCE, which
changes the ciphersuite selection procedure. If specified the server
priorities will be used for selection instead of the client's.

** libgnutls: Optimizations in Diffie-Hellman parameters generation
and key exchange.

** libgnutls: When session tickets are negotiated and used in a
session, a server will not store that session data into its cache.

** libgnutls: Added the SECP192R1 curve.

** libgnutls: Added gnutls_priority_get_cipher_suite_index() to
allow listing the ciphersuites enabled in a priority structure.
It outputs an index to be used in gnutls_get_cipher_suite_info().

** libgnutls: Optimizations in the elliptic curve code --timing
attacks resistant code is only used in ECDSA private key operations.

** doc: man pages for API functions generation was fixed and are
now added again in the distribution.

** API and ABI modifications:
GNUTLS_ECC_CURVE_SECP192R1: New curve definition
gnutls_priority_get_cipher_suite_index: Added


* Version 3.0.8 (released 2011-11-12)

** certtool: Certtool -e returns error code on verification
failure.

** certtool: Verifies parameters of generated keys.

** libgnutls: Corrected ECC key generation (introduced in 3.0.6)

** libgnutls: Provide less timing information when decoding
TLS/DTLS record packets.

** doc: man pages for API functions were removed.
The reason was that the code that auto-generated the man pages missed
many APIs and we couldn't fix it (volunteers welcome).  See the info
manual or the GTK-DOC manual instead.

** API and ABI modifications:
gnutls_x509_privkey_verify_params: Added


* Version 3.0.7 (released 2011-11-08)

** libgnutls: Corrected fix in gnutls_session_get_data()
to report the actual session size when the provided buffer
is not enough.

** libgnutls: Fixed ciphersuite GNUTLS_ECDHE_RSA_AES_128_CBC_SHA256,
which was using a wrong MAC algorithm. Reported by Fabrice Gautier.

** API and ABI modifications:
No changes since last version.


* Version 3.0.6 (released 2011-11-07)

** gnutls-guile: Compilation fixes.

** libgnutls: Fixed possible buffer overflow in 
gnutls_session_get_data(). Reported and fix by Alban Crequy.

** libgnutls: Bug fixes in the ciphersuites with NULL cipher.
Reported by Fabrice Gautier.

** libgnutls: Bug fixes in ECC code for 64-bit MIPS systems. 
Thanks to Joseph Graham for providing access to such a system.

** libgnutls: Correctly report ECC private key parsing errors.
Reported by Fabrice Gautier.

** libgnutls: In ECDHE verify that the received point lies on
the selected curve. The ECDHE ciphersuites now take precendence
to plain DHE.

** API and ABI modifications:
No changes since last version.


* Version 3.0.5 (released 2011-10-27)

** libgnutls-extra: is no more

** libgnutls: Corrections in order to compile with mingw32.

** libgnutls: Corrections in VIA padlock code for VIA C5 processor
and new detection of PHE with support for partial hashing.

** libgnutls: Corrected bug in gnutls_x509_data2hex. Report and fix 
by Vincent Untz.

** minitasn1: Upgraded to libtasn1 version 2.10.

** API and ABI modifications:
No changes since last version.


* Version 3.0.4 (released 2011-10-15)

** libgnutls-extra: gnutls_register_md5_handler() was
removed.

** gnutls-cli-debug: Added more tests including AES-GCM,
SHA256 and elliptic curves.

** gnutls-cli: Added --benchmark-soft-ciphers to benchmark
the software version of the ciphers instead of hw accelerated 
(where available)

** libgnutls: Public key ID calculation is consistent among
all structures. It uses a SHA-1 hash of the subjectPublicKeyInfo.

** libgnutls: gnutls_privkey_t allows setting external callback
to perform signing or decryption. Can be set using
gnutls_privkey_import_ext()

** libgnutls: A certificate credentials structure can be
used with a gnutls_privkey_t and a gnutls_pcert_st
structure using gnutls_certificate_set_key().

** libgnutls: Fixes to enable external signing callback to
operate with TLS 1.2. 

** libgnutls: Fixed crash when printing ECDSA certificate key 
ID. Reported by Erik Jensen.

** libgnutls: Corrected VIA padlock code for C3. In C3 benchmarks 
show a 50x increase in AES speed and a 14x increase in VIA nano. Added 
support for hashes and HMACs.

** libgnutls: Compilation fixed when p11-kit is not detected.

** libgnutls: Fixed the deflate compression code.

** libgnutls: Added gnutls_x509_crt_get_authority_info_access.
Used to get the PKIX Authority Information Access (AIA) field.

** libgnutls: gnutls_x509_crt_print supports printing AIA fields.

** libgnutls: Added ability to gnutls_privkey_t to operate with
signing callback function.

** API and ABI modifications:
gnutls_x509_crt_get_authority_info_access (x509.h): Added function.
gnutls_privkey_import_ext: Added function.
gnutls_certificate_set_key: Added function.
gnutls_info_access_what_t (x509.h): Added enum.
GNUTLS_OID_AIA (x509.h): Added symbol.
GNUTLS_OID_AD_OCSP (x509.h): Added symbol.
GNUTLS_OID_AD_CAISSUERS (x509.h): Added symbol.

* Version 3.0.3 (released 2011-09-18)

** libgnutls: Added gnutls_record_get_discarded() to return the
number of discarded records in a DTLS session.

** libgnutls: All functions related to RSA-EXPORT were deprecated.
Support for RSA-EXPORT ciphersuites will be ceased in future versions.

** libgnutls: Memory leak fixes in credentials private key 
deinitialization. Reported by Dan Winship.

** libgnutls: Memory leak fixes in ECC ciphersuites.

** libgnutls: Do not send an empty extension structure in server 
hello. This affected old implementations that do not support extensions. 
Reported by J. Cameijo Cerdeira.

** libgnutls: Allow CA importing of 0 certificates to succeed.
Reported by Jonathan Nieder <jrnieder@gmail.com> in
<http://bugs.debian.org/640639>.

** libgnutls: Added support for VIA padlock AES optimizations.
(disabled by default)

** libgnutls: Added support for elliptic curves in
PKCS #11.

** libgnutls: Added gnutls_pkcs11_privkey_generate()
to allow generating a key in a token.

** p11tool: Added generate-rsa, generate-dsa and 
generate-ecc options to allow generating private
keys in the token.

** libgnutls: gnutls_transport_set_lowat dummy macro was 
removed.

** API and ABI modifications:
gnutls_pkcs11_privkey_generate: Added
gnutls_pubkey_import_ecc_raw: Added
gnutls_pubkey_import_ecc_x962: Added
gnutls_pubkey_get_pk_ecc_x962: Added
gnutls_record_get_discarded: Added


* Version 3.0.2 (released 2011-09-01)

** libgnutls: OpenPGP certificate type is not enabled
by default.

** libgnutls: Added %NO_EXTENSIONS priority string.

** libgnutls: Corrected issue in gnutls_record_recv()
triggered on encryption or compression error.

** libgnutls: Compatibility fixes in CPU ID detection 
for i386 and old GCC.

** gnutls-cli: Benchmark applications were incorporated
with it.

** libgnutls: Corrected parsing of XMPP subject
alternative names.

** libgnutls: Allow for out-of-order ChangeCipherSpec
message in DTLS.

** libgnutls: gnutls_certificate_set_x509_key() and
gnutls_certificate_set_openpgp_key() operate as in 2.10.x
and allow the release of the private key during the
lifetime of the certificate structure.

** API and ABI modifications:
GNUTLS_PRIVKEY_IMPORT_COPY: new gnutls_privkey_import() flag


* Version 3.0.1 (released 2011-08-20)

** libgnutls: gnutls_certificate_set_x509_key_file() and 
friends support server name indication. If multiple 
certificates are set using these functions the proper one 
will be selected during a handshake. 

** libgnutls: Added AES-256-GCM which was left out from
the previous release. Reported by Benjamin Hof.

** libgnutls: When asking for a PKCS# 11 PIN multiple 
times, the flags in the callback were not being updated 
to reflect for PIN low count or final try.

** libgnutls: Do not allow second instances of PKCS #11
modules.

** libgnutls: fixed alignment issue in AES-NI code.

** libgnutls: The config file at gnutls_pkcs11_init()
is being read if provided.

** libgnutls: Ensure that a certificate list specified
using gnutls_certificate_set_x509_key() and friends, is 
sorted according to TLS specification (from subject to issuer).

** libgnutls: Added GNUTLS_X509_CRT_LIST_FAIL_IF_UNSORTED flag for
gnutls_x509_crt_list_import. It checks whether the list to be 
imported is properly sorted.

** crywrap: Added to the distribution. It is an application
that proxies TLS session to a port using a plaintext service.

** doc: Many GTK-DOC improvements.

** i18n: Translations were updated.

** API and ABI modifications:
GNUTLS_X509_CRT_LIST_FAIL_IF_UNSORTED: New element in gnutls_certificate_import_flags
GNUTLS_PKCS11_PIN_WRONG: New flag for PIN callback


* Version 3.0.0 (released 2011-07-29)

** libgnutls: writev_emu: stop on the first incomplete write. Patch by
Sjoerd Simons.

** libgnutls: Fix zlib handling in gnutls.pc. Patch by Andreas
Metzler.

** certtool: bug fixes in certificate request generation. Patch
by Petr Písař.

** API and ABI modifications:
gnutls_pcert_list_import_x509_raw: ADDED


* Version 2.99.4 (released 2011-07-23)

** doc: documentation updates.

** libgnutls: gnutls_rsa_params_t is now identical to gnutls_x509_privkey_t
to avoid thread-safety issues. Reported by Sam Varshavchik.

** libgnutls: Added compatibility mode with /etc/gnutls/pkcs11.conf

** libgnutls: license upgraded to LGPLv3

** libgnutls: gnutls_srp_verifier() returns data allocated with gnutls_malloc()
for consistency.

** API and ABI modifications:
No changes since last version.


* Version 2.99.3 (released 2011-06-18)

** libgnutls: Added new PKCS #11 flags to force an object being private or
not. (GNUTLS_PKCS11_OBJ_FLAG_MARK_PRIVATE and GNUTLS_PKCS11_OBJ_FLAG_MARK_NOT_PRIVATE)

** libgnutls: Added SUITEB128 and SUITEB192 priority
strings to enable the NSA SuiteB cryptography ciphersuites.

** libgnutls: Added gnutls_pubkey_verify_data2() that will
verify data provided the signature algorithm.

** libgnutls: Simplified the handling of handshake messages to 
be hashed. Instead of hashing during the handshake process we now 
keep the data until handshake is over and hash them on request. 
This uses more memory but eliminates issues with TLS 1.2 and 
simplifies code.

** libgnutls: Added AES-GCM optimizations using the PCLMULQDQ
instruction. Uses Andy Polyakov's assembly code.

** libgnutls: Added gnutls_x509_trust_list_add_named_crt() and
gnutls_x509_trust_list_verify_named_crt() that allow having a
list of certificates in the trusted list that will be associated
with a name (e.g. server name) and will not be used as CAs.

** libgnutls: PKCS #11 back-end rewritten to use p11-kit
http://p11-glue.freedesktop.org/p11-kit.html. Rewrite by
Stef Walter.

** libgnutls: Added ECDHE-PSK ciphersuites for TLS (RFC 5489).

** API and ABI modifications:
gnutls_pubkey_verify_data2: ADDED
gnutls_ecc_curve_get: ADDED
gnutls_x509_trust_list_add_named_crt: ADDED
gnutls_x509_trust_list_verify_named_crt: ADDED
gnutls_x509_privkey_verify_data: REMOVED
gnutls_crypto_bigint_register: REMOVED
gnutls_crypto_cipher_register: REMOVED
gnutls_crypto_digest_register: REMOVED
gnutls_crypto_mac_register: REMOVED
gnutls_crypto_pk_register: REMOVED
gnutls_crypto_rnd_register: REMOVED
gnutls_crypto_single_cipher_register: REMOVED
gnutls_crypto_single_digest_register: REMOVED
gnutls_crypto_single_mac_register: REMOVED
GNUTLS_KX_ECDHE_PSK: New key exchange method
GNUTLS_VERIFY_DISABLE_CRL_CHECKS: New certificate verification flag.
GNUTLS_PKCS11_OBJ_FLAG_MARK_PRIVATE: New PKCS#11 object flag.
GNUTLS_PKCS11_OBJ_FLAG_MARK_NOT_PRIVATE: New PKCS#11 object flag.


* Version 2.99.2 (released 2011-05-26)

** libgnutls: Added Elliptic curve support. This is not
enabled by default. Requires priority strings:
+CURVE-ALL: to add all supported curves
+ECDHE-RSA: to add ephemeral ECDHE with an RSA-signed certificate
+ECDHE-ECDSA: to add ephemeral ECDHE with an ECDSA-signed certificate
+ANON-ECDHE: to add anonymous ECDH

** libgnutls: PKCS #11 URLs conform to the latest draft
being http://tools.ietf.org/html/draft-pechanec-pkcs11uri-04.

** certtool: Can now load private keys and public keys from PKCS #11 tokens
via URLs.

** libgnutls: Added gnutls_global_set_audit_log_function() that allows
to get important auditing information including the corresponding session.
That might be useful to block DoS or other attacker from specific IPs.

** libgnutls: gnutls_pkcs11_privkey_import_url() will now correctly read
the public key algorithm of the key.

** libgnutls: Added gnutls_certificate_get_issuer() and
gnutls_x509_trust_list_get_issuer() to compensate for the
missing gnutls_certificate_get_x509_cas().

** libgnutls: Added gnutls_x509_crq_verify() to allow
verification of the self signature in a certificate request.
This allows verifying whether the owner of the private key
is the generator of the request.

** libgnutls: gnutls_x509_crt_set_crq() implicitly verifies
the self signature of the request.

** API and ABI modifications:
gnutls_certificate_get_issuer: ADDED
gnutls_x509_trust_list_get_issuer: ADDED
gnutls_x509_crq_verify: ADDED
gnutls_global_set_audit_log_function: ADDED
gnutls_ecc_curve_get_name: ADDED
gnutls_ecc_curve_get_size: ADDED
gnutls_x509_privkey_import_ecc_raw: ADDED
gnutls_x509_privkey_export_ecc_raw: ADDED
gnutls_global_set_time_function: ADDED

GNUTLS_E_ECC_NO_SUPPORTED_CURVES: New error code
GNUTLS_E_ECC_UNSUPPORTED_CURVE: New error code
GNUTLS_KX_ECDHE_RSA: New key exchange method
GNUTLS_KX_ECDHE_ECDSA: New key exchange method
GNUTLS_KX_ANON_ECDH: New key exchange method
GNUTLS_PK_ECC: New public key algorithm
GNUTLS_SIGN_ECDSA_SHA1: New signature algorithm
GNUTLS_SIGN_ECDSA_SHA256: New signature algorithm
GNUTLS_SIGN_ECDSA_SHA384: New signature algorithm
GNUTLS_SIGN_ECDSA_SHA512: New signature algorithm 
GNUTLS_SIGN_ECDSA_SHA224: New signature algorithm
GNUTLS_ECC_CURVE_INVALID: New curve definition
GNUTLS_ECC_CURVE_SECP224R1: New curve definition
GNUTLS_ECC_CURVE_SECP256R1: New curve definition
GNUTLS_ECC_CURVE_SECP384R1: New curve definition
GNUTLS_ECC_CURVE_SECP521R1: New curve definition


* Version 2.99.1 (released 2011-04-23)

** libgnutls: LZO support was removed.

** libgnutls: Corrections in SSLv2 client hello parsing.

** libgnutls: Added support for AES-NI if detected. Uses
Andy Polyakov's AES-NI code.

** libgnutls: Restored HMAC-MD5 for compatibility. Although considered 
weak, several sites require it for connection. It is enabled for
"NORMAL" and "PERFORMANCE" priority strings.

** libgnutls: depend on libdl.

** libgnutls-extra: Dropped support of LZO compression via liblzo.

** libgnutls: gnutls_transport_set_global_errno() was removed. This
function required GnuTLS to access system specific data, for no reason.
Use gnutls_transport_set_errno(), or your system's errno fascility
instead.

** libgnutls: Added gnutls_certificate_set_retrieve_function2()
to set a callback to retrieve a certificate. The certificate is
received in a format that requires no processing from gnutls thus
it is suitable when performance is required.

** API and ABI modifications:
gnutls_transport_set_global_errno: REMOVED
gnutls_certificate_set_retrieve_function2: ADDED

* Version 2.99.0 (released 2011-04-09)

** libgnutls: Added Datagram TLS support.

** libgnutls: Uses a single configure file and a single
gnulib library to save space.

** libgnutls: Several bug fixes.

** libgnutls: gnutls_transport_set_lowat() is no more.

** libgnutls-openssl: modified to use modern gnutls' functions.
This introduces an ABI incompatibility with previous versions.

** libgnutls: Corrected signature generation and verification
in the Certificate Verify message when in TLS 1.2. Reported
by Todd A. Ouska.

** libgnutlsxx: The C++ interface returns exception on
every error and not only on fatal ones. This allows easier
handling of errors.

** libgnutls: Corrected issue in DHE-PSK ciphersuites that ignored    
the PSK callback.

** libgnutls: SRP and PSK are no longer set on the default priorities. 
They have to be explicitly set.

** libgnutls: During handshake message verification using DSS
use the hash algorithm required by it.

** libgnutls: gnutls_recv() return GNUTLS_E_PREMATURE_TERMINATION
on unexpected EOF, instead of GNUTLS_E_UNEXPECTED_PACKET_LENGTH.

** libgnutls: Added GCM mode (interoperates with tls.secg.org)

** libgnutls-extra: Inner application extension was removed.
It was never standardized nor published as an RFC.

** libgnutls: Added new certificate verification functions, that
can provide more details and are more efficient. Check 
gnutls_x509_trust_list_*.

** certtool: Uses the new certificate verification functions for
--verify-chain.

** certtool: Added new certificate verification functionality
using the --verify option. Combined with --load-ca-certificate
it can verify a certificate chain against a list of certificates.

** Several files unnecessarily included <gcrypt.h>; this has been fixed.

** API and ABI modifications:
gnutls_dtls_set_timeouts: ADDED
gnutls_dtls_get_mtu: ADDED
gnutls_dtls_get_data_mtu: ADDED
gnutls_dtls_set_mtu: ADDED
gnutls_dtls_cookie_send: ADDED
gnutls_dtls_cookie_verify: ADDED
gnutls_dtls_prestate_set: ADDED
gnutls_x509_trust_list_verify_crt: ADDED
gnutls_x509_trust_list_add_crls: ADDED
gnutls_x509_trust_list_add_cas: ADDED
gnutls_x509_trust_list_init: ADDED
gnutls_x509_trust_list_deinit: ADDED
gnutls_cipher_add_auth: ADDED
gnutls_cipher_tag: ADDED
gnutls_psk_netconf_derive_key: REMOVED
gnutls_certificate_verify_peers: REMOVED
gnutls_session_set_finished_function: REMOVED
gnutls_ext_register: REMOVED
gnutls_certificate_get_x509_crls: REMOVED
gnutls_certificate_get_x509_cas: REMOVED
gnutls_certificate_get_openpgp_keyring: REMOVED
gnutls_session_get_server_random: REMOVED
gnutls_session_get_client_random: REMOVED
gnutls_session_get_master_secret: REMOVED
gnutls_ia_allocate_client_credentials: REMOVED
gnutls_ia_allocate_server_credentials: REMOVED
gnutls_ia_enable: REMOVED
gnutls_ia_endphase_send: REMOVED
gnutls_ia_extract_inner_secret: REMOVED
gnutls_ia_free_client_credentials: REMOVED
gnutls_ia_free_server_credentials: REMOVED
gnutls_ia_generate_challenge: REMOVED
gnutls_ia_get_client_avp_ptr: REMOVED
gnutls_ia_get_server_avp_ptr: REMOVED
gnutls_ia_handshake: REMOVED
gnutls_ia_handshake_p: REMOVED
gnutls_ia_permute_inner_secret: REMOVED
gnutls_ia_recv: REMOVED
gnutls_ia_send: REMOVED
gnutls_ia_set_client_avp_function: REMOVED
gnutls_ia_set_client_avp_ptr: REMOVED
gnutls_ia_set_server_avp_function: REMOVED
gnutls_ia_set_server_avp_ptr: REMOVED
gnutls_ia_verify_endphase: REMOVED


* Version 2.12.2 (released 2011-04-08)

** libgnutls: Several updates and fixes for win32. Patches by LRN.

** libgnutls: Several bug and memory leak fixes.

** srptool: Accepts the -d option to enable debugging.

** libgnutls: Corrected bug in gnutls_srp_verifier() that prevented
the allocation of a verifier. Reported by Andrew Wiseman.

** API and ABI modifications:
No changes since last version.


* Version 2.12.1 (released 2011-04-02)

** certtool: Generated certificate request with stricter permissions.
Reported by Luca Capello.

** libgnutls: Bug fixes in opencdk code. Reported by Vitaly Kruglikov.

** libgnutls: Corrected windows system_errno() function prototype.

** libgnutls: C++ compatibility fix for compat.h. Reported by Mark Brand.

** libgnutls: Fix size of gnutls_openpgp_keyid_t by using the
GNUTLS_OPENPGP_KEYID_SIZE definition. Reported by Andreas Metzler.

** API and ABI modifications:
No changes since last version.




* Version 2.12.0 (released 2011-03-24)

** certtool: Warns on generation of DSA keys of over 1024 bits, about
the incompatibility with TLS other than 1.2.

** libgnutls: Modified signature algorithm selection in client
certificate request, to avoid failures in DSA certificates.

** libgnutls: Instead of failing with internal error, return 
GNUTLS_E_INCOMPAT_DSA_KEY_WITH_TLS_PROTOCOL if an incompatible DSA
key with the negotiated protocol is encountered.

** libgnutls: Bug fixes in the RSA ciphersuite behavior with openpgp keys.

** libgnutls: Force state update when fork is detected in the nettle
rng.

** libgnutls: modified gnutls_pubkey_import_openpgp() to use the preferred
subkey instead of setting explicitly one.

** libgnutls: Corrected default behavior in record version of Client Hellos.

** libgnutls-openssl: modified to use modern gnutls' functions.
This introduces an ABI incompatibility with previous versions.

** API and ABI modifications:
gnutls_pubkey_import_openpgp: MODIFIED


* Version 2.11.7

** libgnutls: The deprecated  gnutls_x509_privkey_sign_hash() was
replaced by gnutls_privkey_sign_hash2().

** libgnutls: gnutls_pubkey_verify_data, gnutls_pubkey_verify_hash,
gnutls_x509_privkey_verify_data, gnutls_x509_crt_verify_data, 
gnutls_x509_crt_verify_hash return the negative error code 
GNUTLS_E_PK_SIG_VERIFY_FAILED if verification fails to simplify error 
checking.

** libgnutls: Added helper functions for signature verification:
gnutls_pubkey_verify_data() and gnutls_pubkey_import_privkey().

** libgnutls: Modified gnutls_privkey_sign_data().

** gnutls_x509_crl_privkey_sign2(), gnutls_x509_crq_sign2()
gnutls_x509_privkey_sign_hash(), gnutls_x509_privkey_sign_data(),
gnutls_x509_crt_verify_hash(), gnutls_x509_crt_verify_data(), were
deprecated for gnutls_x509_crl_privkey_sign(),
gnutls_x509_crq_privkey_sign(), gnutls_privkey_sign_hash(),
gnutls_privkey_sign_data(), gnutls_pubkey_verify_hash()
gnutls_pubkey_verify_data() respectively.

** libgnutls: gnutls_*_export_raw() functions now add leading zero in
integers.

** libgnutls: Added convenience functions gnutls_x509_crl_list_import2()
and gnutls_x509_crt_list_import2().

** crypto.h: Fix use with C++.
Reported by "Brendan Doherty" <brendand@gentrack.com>.

** API and ABI modifications:
gnutls_x509_crl_list_import: ADDED
gnutls_x509_crl_list_import2: ADDED
gnutls_x509_crt_list_import2: ADDED
gnutls_x509_crl_get_raw_issuer_dn: ADDED
gnutls_pubkey_import_privkey: ADDED
gnutls_pubkey_verify_data: ADDED
gnutls_privkey_sign_hash: MODIFIED (was added in 2.11.0)
gnutls_privkey_sign_data: MODIFIED (was added in 2.11.0)
gnutls_x509_crq_sign2: DEPRECATED (use: gnutls_x509_crq_privkey_sign)
gnutls_x509_crq_sign: DEPRECATED (use: gnutls_x509_crq_privkey_sign)
gnutls_x509_crq_get_preferred_hash_algorithm: REMOVED (was added in 2.11.0)
gnutls_x509_crl_sign: DEPRECATED (use: gnutls_x509_crl_privkey_sign)
gnutls_x509_crl_sign2: DEPRECATED (use: gnutls_x509_crl_privkey_sign)
gnutls_x509_privkey_sign_data: DEPRECATED (use: gnutls_privkey_sign_data2)
gnutls_x509_privkey_sign_hash: DEPRECATED (use: gnutls_privkey_sign_hash2)
gnutls_x509_privkey_verify_data: DEPRECATED (use: gnutls_pubkey_verify_data)
gnutls_session_set_finished_function: DEPRECATED
gnutls_x509_crt_verify_hash: DEPRECATED (use: gnutls_pubkey_verify_hash)
gnutls_x509_crt_verify_data: DEPRECATED (use: gnutls_pubkey_verify_data)
gnutls_x509_crt_get_verify_algorithm: DEPRECATED (use: gnutls_pubkey_get_verify_algorithm)
gnutls_x509_crt_get_preferred_hash_algorithm: DEPRECATED (use: gnutls_pubkey_get_preferred_hash_algorithm)
gnutls_openpgp_privkey_sign_hash: DEPRECATED (use: gnutls_privkey_sign_hash2)
gnutls_pkcs11_privkey_sign_hash: REMOVED (was added in 2.11.0)
gnutls_pkcs11_privkey_decrypt_data: REMOVED (was added in 2.11.0)
gnutls_privkey_sign_hash: REMOVED (was added in 2.11.0)

* Version 2.11.6 (released 2010-12-06)

** libgnutls: Record version of Client Hellos is now set by default to
SSL 3.0. To restore the previous default behavior use %LATEST_RECORD_VERSION
priority string.

** libgnutls: Use ASN1_NULL when writing parameters for RSA signatures. 
This makes us comply with RFC3279. Reported by Michael Rommel.

** gnutls-serv: Corrected a buffer overflow. Reported and patch by Tomas Mraz.

** API and ABI modifications:
No changes since last version.

* Version 2.11.5 (released 2010-12-01)

** libgnutls: Reverted default behavior for verification and
introduced GNUTLS_VERIFY_DO_NOT_ALLOW_X509_V1_CA_CRT. Thus by default
V1 trusted CAs are allowed, unless the new flag is specified.

** libgnutls: Correctly add leading zero to PKCS #8 encoded DSA key.
Reported by Jeffrey Walton.

** libgnutls: Added SIGN-ALL, CTYPE-ALL, COMP-ALL, and VERS-TLS-ALL
as priority strings. Those allow to set all the supported algorithms
at once.

** p11tool: Introduced. It allows manipulating pkcs 11 tokens.

** gnutls-cli: Print channel binding only in verbose mode.
Before it printed it after the 'Compression:' output, thus breaking
Emacs starttls.el string searches.

** API and ABI modifications:
gnutls_pkcs11_token_init: New function
gnutls_pkcs11_token_set_pin: New function

* Version 2.11.4 (released 2010-10-15)

** libgnutls: Add new API gnutls_session_channel_binding.
The function is used to get the channel binding data.  Currently only
the "tls-unique" (RFC 5929) channel binding type is supported, through
the GNUTLS_CB_TLS_UNIQUE type.  See new section "Channel Bindings" in
the manual.

** gnutls-cli, gnutls-serv: Print 'tls-unique' Channel Bindings.

** doc: Added pkcs11.h header file to GTK-DOC manual.

** build: Update gnulib files.

** i18n: Update translations.

** tests: Add self tests gendh.c.  Speed up Guile self checks.

** API and ABI modifications:
gnutls_session_channel_binding: New function.
gnutls_channel_binding_t: New enumeration.
GNUTLS_CB_TLS_UNIQUE: New gnutls_channel_binding_t enum member.
GNUTLS_E_CHANNEL_BINDING_NOT_AVAILABLE: New error code.

* Version 2.11.3 (released 2010-10-14)

** Indent code to follow the GNU Coding Standard.
You should be able to unpack the 2.11.2 release and run 'make indent'
twice to get exactly the same content as 2.11.3 except for generated
files.  Using GNU Indent 2.2.11.

** API and ABI modifications:
No changes since last version.

* Version 2.11.2 (released 2010-10-08)

** libgnutls: Several bug fixes on session resumption
and session tickets support.

** libgnutls: Add new extended key usage ipsecIKE.

** certtool: Renamed PKCS #11 options to: --p11-provider,
--p11-export-url, --p11-list-certs, --p11-list-certs,
--p11-list-privkeys, --p11-list-trusted, --p11-list-all-certs,
--p11-list-all, --p11-list-tokens, --p11-login, --p11-write,
--p11-write-label, --p11-write-trusted, --p11-detailed-url,
--p11-delete-url

** libgnutls: Corrected bug that caused importing DSA keys as RSA,
introduced with the new nettle code.

** libgnutls: Corrected advertizing issue for session tickets.

** API and ABI modifications:
gnutls_x509_crt_get_subject_unique_id: ADDED.
gnutls_x509_crt_get_issuer_unique_id: ADDED.

* Version 2.11.1 (released 2010-09-14)

** libgnutls: Nettle is the default crypto back end. Use --with-libgcrypt
to use the libgcrypt back end.

** libgnutls: Depend on nettle 2.1. This makes nettle a fully working
backend crypto library.

** libgnutls: Added RSA_NULL_SHA1 and SHA256 ciphersuites.

** libgnutls: Several updates in the buffering internal interface.

** libgnutls: Is now more liberal in the PEM decoding. That is spaces and 
tabs are being skipped.

** libgnutls: Added support for draft-pechanec-pkcs11uri-02.

** libgnutls: The %COMPAT flag now allows larger records that violate the
TLS spec.

** libgnutls: by default lowat level has been set to zero to avoid unnecessary
system calls. Applications that depended on it being 1 should explicitly call
gnutls_transport_set_lowat().

** libgnutls: Updated documentation and gnutls_pk_params_t mappings
to ECRYPT II recommendations. Mappings were moved to a single location
and DSA keys are handled differently (since DSA2 allows for 1024,2048
and 3072 keys only).

** libgnutls: gnutls_x509_privkey_import() will fallback to
gnutls_x509_privkey_import_pkcs8() without a password, if it
is unable to decode the key.

** libgnutls: HMAC-MD5 no longer used by default.

** API and ABI modifications:
gnutls_openpgp_privkey_sec_param: ADDED
gnutls_x509_privkey_sec_param: ADDED

* Version 2.11.0 (released 2010-07-22)

** libgnutls: support scattered write using writev(). This takes
advantage of the new buffering layer and allows queuing of packets
and flushing them. This is currently used for handshake messages
only.

** libgnutls: Added gnutls_global_set_mutex() to allow setting
alternative locking procedures. By default the system available
locking is used. In *NIX pthreads are used and in windows the
critical section API. This follows a different approach than the
previous versions that depended on libgcrypt initialization. The
locks are now set by default in systems that support it. Programs
that used gcry_control() to set thread locks should insert it into
a block of
#if GNUTLS_VERSION_NUMBER <= 0x020b00
        gcry_control(...)
#endif

** libgnutls: Added support for reading DN from EV-certificates.
New DN values:
jurisdictionOfIncorporationLocalityName,
jurisdictionOfIncorporationStateOrProvinceName,
jurisdictionOfIncorporationCountryName

** libgnutls: Added support for DSA signing/verifying with bit 
length over 1024.

** libgnutls-extra: When in FIPS mode gnutls_global_init_extra()
has to be called to register any required md5 handlers.

** libgnutls: Internal buffering code was replaced by simpler
code contributed by Jonathan Bastien-Filiatrault.

** libgnutls: Internal API for extensions augmented to allow
safe storing and loading of data on resumption. This allows writing
self-contained extensions (when possible). As a side effect
the OPRFI extension was removed.

** libgnutls: Added support for DSA-SHA256 and DSA-SHA224

** libgnutls: Added PKCS #11 support and an API to access objects in
gnutls/pkcs11.h. Currently certificates and public keys can be
imported from tokens, and operations can be performed on private keys.

** libgnutls: Added abstract gnutls_privkey_t and gnutls_pubkey_t

** libgnutls: Added initial support for the nettle library. It uses
the system's random generator for seeding. That is /dev/urandom in Linux, 
system calls in Win32 and EGD on other systems.

** libgnutls: Corrected issue on the %SSL3_RECORD_VERSION priority string. It now
    works even when resuming a session.

** libgnutls: Added gnutls_certificate_set_retrieve_function() to replace the
similar gnutls_certificate_set_server_retrieve_function() and
gnutls_certificate_set_client_retrieve_function(). In addition it support
PKCS #11 private keys.

** libgnutls: Added  gnutls_pkcs11_copy_x509_crt(), gnutls_pkcs11_copy_x509_privkey(),
and gnutls_pkcs11_delete_url() to allow copying and deleting data in tokens.

** libgnutls: Added gnutls_sec_param_to_pk_bits() et al. to allow select bit
sizes for private keys using a human understandable scale.

** certtool: Added new options: --pkcs11-list-tokens, --pkcs11-list-all
--pkcs11-list-all-certs, --pkcs11-list-trusted, --pkcs11-list-certs,
--pkcs11-delete-url, --pkcs11-write

certtool: The --pkcs-cipher is taken into account when generating a
private key. The default cipher used now is aes-128. The old behavior can
be simulated by specifying "--pkcs-cipher 3des-pkcs12".

certtool: Added --certificate-pubkey to print the public key of the
certificate.

** gnutls-cli/gnutls-serv: --x509cafile, --x509certfile and --x509keyfile
can now accept a PKCS #11 URL in addition to a file. This will allow for
example to use the Gnome-keyring trusted certificate list to verify
connections using a url such as:
pkcs11:token=Root%20CA%20Certificates;serial=1%3AROOTS%3ADEFAULT;model=1%2E0;manufacturer=Gnome%20Keyring

** API and ABI modifications:
gnutls_certificate_set_server_retrieve_function: DEPRECATED
gnutls_certificate_set_client_retrieve_function: DEPRECATED
gnutls_sign_callback_set: DEPRECATED
gnutls_global_set_mutex: ADDED
gnutls_pubkey_get_preferred_hash_algorithm: ADDED
gnutls_x509_crt_get_preferred_hash_algorithm: ADDED
gnutls_x509_privkey_export_rsa_raw2: ADDED
gnutls_rnd: ADDED
gnutls_sec_param_to_pk_bits: ADDED
gnutls_pk_bits_to_sec_param: ADDED
gnutls_sec_param_get_name: ADDED
gnutls_pkcs11_type_get_name: ADDED
gnutls_certificate_set_retrieve_function: ADDED
gnutls_pkcs11_init: ADDED
gnutls_pkcs11_deinit: ADDED
gnutls_pkcs11_set_pin_function: ADDED
gnutls_pkcs11_set_token_function: ADDED
gnutls_pkcs11_add_provider: ADDED
gnutls_pkcs11_obj_init: ADDED
gnutls_pkcs11_obj_import_url: ADDED
gnutls_pkcs11_obj_export_url: ADDED
gnutls_pkcs11_obj_deinit: ADDED
gnutls_pkcs11_obj_export: ADDED
gnutls_pkcs11_obj_list_import_url: ADDED
gnutls_pkcs11_obj_export: ADDED
gnutls_x509_crt_import_pkcs11: ADDED
gnutls_pkcs11_obj_get_type: ADDED
gnutls_x509_crt_list_import_pkcs11: ADDED
gnutls_x509_crt_import_pkcs11_url: ADDED
gnutls_pkcs11_obj_get_info: ADDED
gnutls_pkcs11_token_get_info: ADDED
gnutls_pkcs11_token_get_url: ADDED
gnutls_pkcs11_privkey_init: ADDED
gnutls_pkcs11_privkey_deinit: ADDED
gnutls_pkcs11_privkey_get_pk_algorithm: ADDED
gnutls_pkcs11_privkey_get_info: ADDED
gnutls_pkcs11_privkey_import_url: ADDED
gnutls_pkcs11_privkey_sign_data: ADDED
gnutls_pkcs11_privkey_sign_hash: ADDED
gnutls_pkcs11_privkey_decrypt_data: ADDED
gnutls_privkey_init: ADDED
gnutls_privkey_deinit: ADDED
gnutls_privkey_get_pk_algorithm: ADDED
gnutls_privkey_get_type: ADDED
gnutls_privkey_import_pkcs11: ADDED
gnutls_privkey_import_x509: ADDED
gnutls_privkey_import_openpgp: ADDED
gnutls_privkey_sign_data: ADDED
gnutls_privkey_sign_hash: ADDED
gnutls_privkey_decrypt_data: ADDED
gnutls_pkcs11_privkey_export_url: ADDED
gnutls_x509_crq_privkey_sign: ADDED
gnutls_x509_crl_privkey_sign: ADDED
gnutls_x509_crt_privkey_sign: ADDED
gnutls_pubkey_init: ADDED
gnutls_pubkey_deinit: ADDED
gnutls_pubkey_get_pk_algorithm: ADDED
gnutls_pubkey_import_x509: ADDED
gnutls_pubkey_import_openpgp: ADDED
gnutls_pubkey_get_pk_rsa_raw: ADDED
gnutls_pubkey_get_pk_dsa_raw: ADDED
gnutls_pubkey_export: ADDED
gnutls_pubkey_get_key_id: ADDED
gnutls_pubkey_get_key_usage: ADDED
gnutls_pubkey_verify_hash: ADDED
gnutls_pubkey_get_verify_algorithm: ADDED
gnutls_pkcs11_type_get_name: ADDED
gnutls_pubkey_import_pkcs11_url: ADDED
gnutls_pubkey_import: ADDED
gnutls_pubkey_import_pkcs11: ADDED
gnutls_pubkey_import_dsa_raw: ADDED
gnutls_pubkey_import_rsa_raw: ADDED
gnutls_x509_crt_set_pubkey: ADDED
gnutls_x509_crq_set_pubkey: ADDED
gnutls_pkcs11_copy_x509_crt: ADDED
gnutls_pkcs11_copy_x509_privkey: ADDED
gnutls_pkcs11_delete_url: ADDED

* Version 2.10.1 (released 2010-07-25)

** libgnutls: Added support for broken certificates that indicate RSA
with strange OIDs.

** gnutls-cli: Allow verification using V1 CAs.

** libgnutls: gnutls_x509_privkey_import() will fallback to
gnutls_x509_privkey_import_pkcs8() without a password, if it
is unable to decode the key.

** libgnutls: Correctly deinitialize crypto API functions to prevent
a memory leak.  Reported by Mads Kiilerich.

** certtool: If asked to generate DSA keys of size more than 1024 bits,
issue a warning, that the output key might not be working everywhere.

** certtool: The --pkcs-cipher is taken into account when generating a
private key. The default cipher used now is aes-128. The old behavior
can be simulated by specifying "--pkcs-cipher 3des-pkcs12".

** API and ABI modifications:
No changes since last version.

* Version 2.10.0 (released 2010-06-25)

** API and ABI modifications:
No changes since last version.

* Version 2.9.12 (released 2010-06-17)

** gnutls-cli: Make --starttls work again.
Problem introduced in patch to use read() instead of fgets() committed
on 2010-01-27.

** API and ABI modifications:
No changes since last version.

* Version 2.9.11 (released 2010-06-07)

** libgnutls: Removed two APIs related to safe renegotiation.
Use priority strings instead.  The APIs were
gnutls_safe_negotiation_set_initial and gnutls_safe_renegotiation_set.
(Remember that we don't promise ABI stability during development
series, so this doesn't cause an shared library ABI increment.)

** tests: More self testing of safe renegotiation extension.
See tests/safe-renegotiation/README for more information.

** doc: a PDF version of the API reference manual (GTK-DOC) is now built.

** doc: Terms 'GNUTLS' and 'GNU TLS' were changed to 'GnuTLS' for consistency.

** API and ABI modifications:
gnutls_safe_negotiation_set_initial: REMOVED.
gnutls_safe_renegotiation_set: REMOVED.

* Version 2.9.10 (released 2010-04-22)

** libgnutls: Time verification extended to trusted certificate list.
Unless new constant GNUTLS_VERIFY_DISABLE_TRUSTED_TIME_CHECKS flag is
specified.

** certtool: Display postalCode and Name X.509 DN attributes correctly.
Based on patch by Pavan Konjarla.  Adds new constant
GNUTLS_OID_X520_POSTALCODE and GNUTLS_OID_X520_NAME.

** libgnutls: Added Steve Dispensa's patch for safe renegotiation (RFC 5746)
Solves the issue discussed in:
<http://www.ietf.org/mail-archive/web/tls/current/msg03928.html> and
<http://www.ietf.org/mail-archive/web/tls/current/msg03948.html>.
Note that to allow connecting to unpatched servers the full protection
is only enabled if the priority string %SAFE_RENEGOTIATION is
specified. You can check whether protection is in place by querying
gnutls_safe_renegotiation_status().  New error codes
GNUTLS_E_SAFE_RENEGOTIATION_FAILED and
GNUTLS_E_UNSAFE_RENEGOTIATION_DENIED added.

** libgnutls: When checking openpgp self signature also check the signatures
** of all subkeys.
Ilari Liusvaara noticed and reported the issue and provided test
vectors as well.

** libgnutls: Added cryptodev support (/dev/crypto).
Tested with http://www.logix.cz/michal/devel/cryptodev/.  Added
benchmark utility for AES.  Adds new error codes
GNUTLS_E_CRYPTODEV_IOCTL_ERROR and GNUTLS_E_CRYPTODEV_DEVICE_ERROR.

** libgnutls: Exported API to access encryption and hash algorithms.
The new API functions are gnutls_cipher_decrypt, gnutls_cipher_deinit,
gnutls_cipher_encrypt, gnutls_cipher_get_block_size,
gnutls_cipher_init, gnutls_hash, gnutls_hash_deinit, gnutls_hash_fast,
gnutls_hash_get_len, gnutls_hash_init, gnutls_hash_output,
gnutls_hmac, gnutls_hmac_deinit, gnutls_hmac_fast,
gnutls_hmac_get_len, gnutls_hmac_init, gnutls_hmac_output.  New API
constants are GNUTLS_MAC_SHA224 and GNUTLS_DIG_SHA224.

** libgnutls: Added gnutls_certificate_set_verify_function() to allow
verification of certificate upon receipt rather than waiting until the
end of the handshake.

** libgnutls: Don't send alerts during handshake.
Instead new error code GNUTLS_E_UNKNOWN_SRP_USERNAME is added.

** certtool: Corrected two issues that affected certificate request generation.
(1) Null padding is added on integers (found thanks to Wilankar Trupti),
(2) In optional SignatureAlgorithm parameters field for DSA keys the DSA
parameters were added. Those were rejected by Verisign. Gnutls no longer adds 
those parameters there since other implementations don't do either and having 
them does not seem to offer anything (anyway you need the signer's certificate
to verify thus public key will be available). Found thanks to Boyan Kasarov.
This however has the side-effect that public key IDs shown by certtool are
now different than previous gnutls releases.
(3) the option --pgp-certificate-info will verify self signatures

** certtool: Allow exporting of Certificate requests on DER format.

** certtool: New option --no-crq-extensions to avoid extensions in CSRs.

** gnutls-cli: Handle reading binary data from server.
Reported by and tiny patch from Vitaly Mayatskikh
<v.mayatskih@gmail.com> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/4096>.

** minitasn1: Upgraded to libtasn1 version 2.6.

** i18n: Updated Czech, Dutch, French, Polish, Swedish translation.
** Added Italian and Simplified Chinese translation.
Thanks to Petr Pisar, Erwin Poeze, Nicolas Provost, Jakub Bogusz,
Daniel Nylander, Sergio Zanchetta, Tao Wei, and Aron Xu.

** doc: The GTK-DOC manual is significantly improved.

** API and ABI modifications:
%DISABLE_SAFE_RENEGOTIATION: Added to priority strings (do not use).
%INITIAL_SAFE_RENEGOTIATION: Added to priority strings.
%UNSAFE_RENEGOTIATION: Added to priority strings.
GNUTLS_DIG_SHA224: ADDED.
GNUTLS_E_CRYPTODEV_DEVICE_ERROR: ADDED.
GNUTLS_E_CRYPTODEV_IOCTL_ERROR: ADDED.
GNUTLS_E_SAFE_RENEGOTIATION_FAILED: ADDED.
GNUTLS_E_UNKNOWN_SRP_USERNAME: ADDED.
GNUTLS_E_UNSAFE_RENEGOTIATION_DENIED: ADDED.
GNUTLS_MAC_SHA224: ADDED.
GNUTLS_OID_X520_NAME: ADDED.
GNUTLS_OID_X520_POSTALCODE: ADDED.
GNUTLS_VERIFY_DISABLE_TRUSTED_TIME_CHECKS: ADDED.
GNUTLS_VERSION_MAX: ADDED.
gnutls_certificate_set_verify_function: ADDED.
gnutls_cipher_decrypt: ADDED.
gnutls_cipher_deinit: ADDED.
gnutls_cipher_encrypt: ADDED.
gnutls_cipher_get_block_size: ADDED.
gnutls_cipher_init: ADDED.
gnutls_hash: ADDED.
gnutls_hash_deinit: ADDED.
gnutls_hash_fast: ADDED.
gnutls_hash_get_len: ADDED.
gnutls_hash_init: ADDED.
gnutls_hash_output: ADDED.
gnutls_hmac: ADDED.
gnutls_hmac_deinit: ADDED.
gnutls_hmac_fast: ADDED.
gnutls_hmac_get_len: ADDED.
gnutls_hmac_init: ADDED.
gnutls_hmac_output: ADDED.
gnutls_safe_negotiation_set_initial: ADDED.
gnutls_safe_renegotiation_set: ADDED.
gnutls_safe_renegotiation_status: ADDED.

* Version 2.9.9 (released 2009-11-09)

** libgnutls: Cleanups and several bug fixes.
Found by Steve Grubb and Tomas Mraz.

** Link libgcrypt explicitly to certtool, gnutls-cli, gnutls-serv.

** Fix --disable-valgrind-tests.
Reported by Ingmar Vanhassel in
<https://savannah.gnu.org/support/?107029>.

** API and ABI modifications:
No changes since last version.

* Version 2.9.8 (released 2009-11-05)

** libgnutls: Fix for memory leaks on interrupted handshake.
Reported by Tang Tong.

** libgnutls: Addition of support for TLS 1.2 signature algorithms
** extension and certificate verify field.
This requires changes for TLS 1.2 servers and clients that use
callbacks for certificate retrieval.  They are now required to check
with gnutls_sign_algorithm_get_requested() whether the certificate
they send complies with the peer's preferences in signature
algorithms.

** libgnutls: In server side when resuming a session do not overwrite the 
** initial session data with the resumed session data.

** libgnutls: Added support for AES-128, AES-192 and AES-256 in PKCS #8
** encryption.
This affects also PKCS #12 encoded files.  This adds the following new
enums: GNUTLS_CIPHER_AES_192_CBC, GNUTLS_PKCS_USE_PBES2_AES_128,
GNUTLS_PKCS_USE_PBES2_AES_192, GNUTLS_PKCS_USE_PBES2_AES_256.

** libgnutls: Fix PKCS#12 encoding.
The error you would get was "The OID is not supported.".  Problem
introduced for the v2.8.x branch in 2.7.6.

** certtool: Added the --pkcs-cipher option.
To explicitely specify the encryption algorithm to use.

** tests: Added "pkcs12_encode" self-test to check PKCS#12 functions.

** tests: Fix time bomb in chainverify self-test.
Reported by Andreas Metzler <ametzler@downhill.at.eu.org> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3925>.

** tests: Fix expired cert in chainverify self-test.

** i18n: Vietnamese translation updated.
Thanks to Clytie Siddall.

** API and ABI modifications:
GNUTLS_CIPHER_AES_192_CBC: ADDED to gnutls/gnutls.h.
GNUTLS_PKCS_USE_PBES2_AES_128: ADDED to gnutls/x509.h.
GNUTLS_PKCS_USE_PBES2_AES_192: ADDED to gnutls/x509.h.
GNUTLS_PKCS_USE_PBES2_AES_256: ADDED to gnutls/x509.h.
GNUTLS_BAG_SECRET: ADDED to gnutls/pkcs12.h.
GNUTLS_DIG_UNKNOWN: ADDED to gnutls/gnutls.h.
gnutls_sign_algorithm_get_requested: ADDED.

* Version 2.9.7 (released 2009-10-06)

** libgnutls: TLS 1.2 server mode fixes.
Now interoperates against Opera.  Contributed by Daiki Ueno.

** libgnutlsxx: Fix link problems.
Tiny patch from Boyan Kasarov <bkasarov@gmail.com>.

** guile: Compatibility with guile 2.x.
By Ludovic Courtes <ludovic.courtes@laas.fr>.

** API and ABI modifications:
No changes since last version.

* Version 2.9.6 (released 2009-09-22)

** libgnutls: Enable Camellia ciphers by default.

** API and ABI modifications:
No changes since last version.

* Version 2.9.5 (released 2009-09-10)

** libgnutls: Add new functions to extract X.509 Issuer Alternative Names.
The new functions are gnutls_x509_crt_get_issuer_alt_name2,
gnutls_x509_crt_get_issuer_alt_name, and
gnutls_x509_crt_get_issuer_alt_othername_oid.  Contributed by Brad
Hards <bradh@frogmouth.net>.

** API and ABI modifications:
gnutls_x509_crt_get_issuer_alt_name2: ADDED.
gnutls_x509_crt_get_issuer_alt_name: ADDED.
gnutls_x509_crt_get_issuer_alt_othername_oid: ADDED.

* Version 2.9.4 (released 2009-09-03)

** libgnutls: Client-side TLS 1.2 and SHA-256 ciphersuites now works.
The new supported ciphersuites are AES-128/256 in CBC mode with
ANON-DH/RSA/DHE-DSS/DHE-RSA.  Contributed by Daiki Ueno.  Further,
SHA-256 is now the preferred default MAC (however it is only used with
TLS 1.2).

** libgnutls: Make OpenPGP hostname checking work again.
The patch to resolve the X.509 CN/SAN issue accidentally broken
OpenPGP hostname comparison.

** libgnutls: When printing X.509 certificates, handle XMPP SANs better.
Reported by Howard Chu <hyc@symas.com> in
<https://savannah.gnu.org/support/?106975>.

** Fix use of deprecated types internally.
Use of deprecated types in GnuTLS from now on will lead to a compile
error, to prevent this from happening again.

** API and ABI modifications:
No changes since last version.

* Version 2.9.3 (released 2009-08-19)

** libgnutls: Support for TLS tickets was contributed by Daiki Ueno.
The new APIs are gnutls_session_ticket_enable_client,
gnutls_session_ticket_enable_server, and
gnutls_session_ticket_key_generate.

** gnutls-cli, gnutls-serv: New parameter --noticket to disable TLS tickets.

** API and ABI modifications:
gnutls_session_ticket_key_generate: ADDED.
gnutls_session_ticket_enable_client: ADDED.
gnutls_session_ticket_enable_server: ADDED.

* Version 2.9.2 (released 2009-08-14)

** libgnutls: Fix problem with NUL bytes in X.509 CN and SAN fields.
By using a NUL byte in CN/SAN fields, it was possible to fool GnuTLS
into 1) not printing the entire CN/SAN field value when printing a
certificate and 2) cause incorrect positive matches when matching a
hostname against a certificate.  Some CAs apparently have poor
checking of CN/SAN values and issue these (arguable invalid)
certificates.  Combined, this can be used by attackers to become a
MITM on server-authenticated TLS sessions.  The problem is mitigated
since attackers needs to get one certificate per site they want to
attack, and the attacker reveals his tracks by applying for a
certificate at the CA.  It does not apply to client authenticated TLS
sessions.  Research presented independently by Dan Kaminsky and Moxie
Marlinspike at BlackHat09.  Thanks to Tomas Hoger <thoger@redhat.com>
for providing one part of the patch.  [GNUTLS-SA-2009-4] [CVE-2009-2730].

** libgnutls: Fix rare failure in gnutls_x509_crt_import.
The function may fail incorrectly when an earlier certificate was
imported to the same gnutls_x509_crt_t structure.

** minitasn1: Internal copy updated to libtasn1 v2.3.

** libgnutls: Fix return value of gnutls_certificate_client_get_request_status.
Before it always returned false.  Reported by Peter Hendrickson
<pdh@wiredyne.com> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3668>.

** libgnutls: Fix off-by-one size computation error in unknown DN printing.
The error resulted in truncated strings when printing unknown OIDs in
X.509 certificate DNs.  Reported by Tim Kosse
<tim.kosse@filezilla-project.org> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3651>.

** libgnutls: Fix PKCS#12 decryption from password.
The encryption key derived from the password was incorrect for (on
average) 1 in every 128 input for random inputs.  Reported by "Kukosa,
Tomas" <tomas.kukosa@siemens-enterprise.com> in
<http://permalink.gmane.org/gmane.network.gnutls.general/1663>.

** libgnutls: Return correct bit lengths of some MPIs.
gnutls_dh_get_prime_bits, gnutls_rsa_export_get_modulus_bits, and
gnutls_dh_get_peers_public_bits.  Before the reported value was
overestimated.  Reported by Peter Hendrickson <pdh@wiredyne.com> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3607>.

** libgnutls: Avoid internal error when invoked after GNUTLS_E_AGAIN.
Report and patch by Tim Kosse <tim.kosse@filezilla-project.org> in
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3671>
and
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3670>.

** libgnutls: Relax checking of required libtasn1/libgcrypt versions.
Before we required that the runtime library used the same (or more
recent) libgcrypt/libtasn1 as it was compiled with.  Now we just check
that the runtime usage is above the minimum required.  Reported by
Marco d'Itri <md@linux.it> via Andreas Metzler
<ametzler@downhill.at.eu.org> in <http://bugs.debian.org/540449>.

** tests: Added new self-test pkcs12_s2k_pem to detect MPI bit length error.

** tests: Improved test vectors in self-test pkcs12_s2k.

** tests: Added new self-test dn2 to detect off-by-one size error.

** tests: Fix failure in "chainverify" because a certificate have expired.

** API and ABI modifications:
No changes since last version.

* Version 2.9.1 (released 2009-06-08)

** libgnutls: Fix crash in gnutls_global_init after earlier init/deinit cycle.
Forwarded by Martin von Gagern <Martin.vGagern@gmx.net> from
<http://bugs.gentoo.org/272388>.

** tests: Added new self-tests init_roundtrip.c to detect previous problem.

** Reduce stack usage for some CRQ functions.

** Doc fixes for CRQ functions.

** API and ABI modifications:
No changes since last version.

* Version 2.9.0 (released 2009-05-28)

** Doc fixes.

** API and ABI modifications:
No changes since last version.

* Version 2.8.6 (released 2010-03-15)

** libgnutls: For CSRs, don't null pad integers for RSA/DSA value.
VeriSign rejected CSRs with this padding.  Reported by Wilankar Trupti
<trupti.wilankar@hp.com> and Boyan Kasarov <bkasarov@gmail.com>.

Note: As a side effect of this change, the "public key identifier"
value computed for a certificate using this version of GnuTLS will be
different from values computed using earlier versions of GnuTLS.

** libgnutls: For CSRs on DSA keys, don't add DSA parameters to the
** optional SignatureAlgorithm parameter field.
VeriSign rejected these CSRs.  They are stricly speaking not needed
since you need the signer's certificate to verify the certificate
signature anyway.  Reported by Wilankar Trupti
<trupti.wilankar@hp.com> and Boyan Kasarov <bkasarov@gmail.com>.

** libgnutls: When checking openpgp self signature also check the signatures
** of all subkeys.
Ilari Liusvaara noticed and reported the issue and provided test
vectors as well.

** libgnutls: Cleanups and several bug fixes.
Found by Steve Grubb and Tomas Mraz.

** Link libgcrypt explicitly to certtool, gnutls-cli, gnutls-serv.

** Fix --disable-valgrind-tests.
Reported by Ingmar Vanhassel in
<https://savannah.gnu.org/support/?107029>.

** examples: Use the new APIs for printing X.509 certificate information.

** Fix build failures on Solaris.
Thanks to Dagobert Michelsen <dam@opencsw.org>.

** i18n: Updated Czech, Dutch, French, Polish, Swedish and Vietnamese
** translations.  Added Simplified Chinese translation.

** API and ABI modifications:
No changes since last version.

* Version 2.8.5 (released 2009-11-02)

** libgnutls: In server side when resuming a session do not overwrite the 
** initial session data with the resumed session data.

** libgnutls: Fix PKCS#12 encoding.
The error you would get was "The OID is not supported.".  Problem
introduced for the v2.8.x branch in 2.7.6.

** guile: Compatibility with guile 2.x.
By Ludovic Courtes <ludovic.courtes@laas.fr>.

** tests: Fix expired cert in chainverify self-test.

** tests: Fix time bomb in chainverify self-test.
Reported by Andreas Metzler <ametzler@downhill.at.eu.org> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3925>.

** API and ABI modifications:
No changes since last version.

* Version 2.8.4 (released 2009-09-18)

** libgnutls: Enable Camellia ciphers by default.

** libgnutls: Make OpenPGP hostname checking work again.
The patch to resolve the X.509 CN/SAN issue accidentally broken
OpenPGP hostname comparison.

** libgnutls: When printing X.509 certificates, handle XMPP SANs better.
Reported by Howard Chu <hyc@symas.com> in
<https://savannah.gnu.org/support/?106975>.

** API and ABI modifications:
No changes since last version.

* Version 2.8.3 (released 2009-08-13)

** libgnutls: Fix patch for NUL in CN/SAN in last release.
Code intended to be removed would lead to an read-out-bound error in
some situations.  Reported by Tomas Hoger <thoger@redhat.com>.  A CVE
code have been allocated for the vulnerability: [CVE-2009-2730].

** libgnutls: Fix rare failure in gnutls_x509_crt_import.
The function may fail incorrectly when an earlier certificate was
imported to the same gnutls_x509_crt_t structure.

** libgnutls-extra, libgnutls-openssl: Fix MinGW cross-compiling build error.

** tests: Made self-test mini-eagain take less time.

** doc: Typo fixes.

** API and ABI modifications:
No changes since last version.

* Version 2.8.2 (released 2009-08-10)

** libgnutls: Fix problem with NUL bytes in X.509 CN and SAN fields.
By using a NUL byte in CN/SAN fields, it was possible to fool GnuTLS
into 1) not printing the entire CN/SAN field value when printing a
certificate and 2) cause incorrect positive matches when matching a
hostname against a certificate.  Some CAs apparently have poor
checking of CN/SAN values and issue these (arguable invalid)
certificates.  Combined, this can be used by attackers to become a
MITM on server-authenticated TLS sessions.  The problem is mitigated
since attackers needs to get one certificate per site they want to
attack, and the attacker reveals his tracks by applying for a
certificate at the CA.  It does not apply to client authenticated TLS
sessions.  Research presented independently by Dan Kaminsky and Moxie
Marlinspike at BlackHat09.  Thanks to Tomas Hoger <thoger@redhat.com>
for providing one part of the patch.  [GNUTLS-SA-2009-4].

** libgnutls: Fix return value of gnutls_certificate_client_get_request_status.
Before it always returned false.  Reported by Peter Hendrickson
<pdh@wiredyne.com> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3668>.

** libgnutls: Fix off-by-one size computation error in unknown DN printing.
The error resulted in truncated strings when printing unknown OIDs in
X.509 certificate DNs.  Reported by Tim Kosse
<tim.kosse@filezilla-project.org> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3651>.

** libgnutls: Return correct bit lengths of some MPIs.
gnutls_dh_get_prime_bits, gnutls_rsa_export_get_modulus_bits, and
gnutls_dh_get_peers_public_bits.  Before the reported value was
overestimated.  Reported by Peter Hendrickson <pdh@wiredyne.com> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3607>.

** libgnutls: Avoid internal error when invoked after GNUTLS_E_AGAIN.
Report and patch by Tim Kosse <tim.kosse@filezilla-project.org> in
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3671>
and
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3670>.

** libgnutls: Relax checking of required libtasn1/libgcrypt versions.
Before we required that the runtime library used the same (or more
recent) libgcrypt/libtasn1 as it was compiled with.  Now we just check
that the runtime usage is above the minimum required.  Reported by
Marco d'Itri <md@linux.it> via Andreas Metzler
<ametzler@downhill.at.eu.org> in <http://bugs.debian.org/540449>.

** minitasn1: Internal copy updated to libtasn1 v2.3.

** tests: Fix failure in "chainverify" because a certificate have expired.

** API and ABI modifications:
No changes since last version.

* Version 2.8.1 (released 2009-06-10)

** libgnutls: Fix crash in gnutls_global_init after earlier init/deinit cycle.
Forwarded by Martin von Gagern <Martin.vGagern@gmx.net> from
<http://bugs.gentoo.org/272388>.

** libgnutls: Fix PKCS#12 decryption from password.
The encryption key derived from the password was incorrect for (on
average) 1 in every 128 input for random inputs.  Reported by "Kukosa,
Tomas" <tomas.kukosa@siemens-enterprise.com> in
<http://permalink.gmane.org/gmane.network.gnutls.general/1663>.

** API and ABI modifications:
No changes since last version.

* Version 2.8.0 (released 2009-05-27)

** doc: Fix gnutls_dh_get_prime_bits.  Fix error codes and algorithm lists.

** Major changes compared to the v2.4 branch:

*** lib: Linker version scripts reduces number of exported symbols.

*** lib: Limit exported symbols on systems without LD linker scripts.

*** libgnutls: Fix namespace issue with version symbols.

*** libgnutls: Add functions to verify a hash against a certificate.
gnutls_x509_crt_verify_hash: ADDED
gnutls_x509_crt_get_verify_algorithm: ADDED

*** gnutls-serv: Listen on all interfaces, including both IPv4 and IPv6.

*** i18n: The GnuTLS gettext domain is now 'libgnutls' instead of 'gnutls'.

*** certtool: Query for multiple dnsName subjectAltName in interactive mode.

*** gnutls-cli: No longer accepts V1 CAs by default during X.509 chain verify.

*** gnutls-serv: No longer disable MAC padding by default.

*** gnutls-cli: Certificate information output format changed.

*** libgnutls: New priority strings %VERIFY_ALLOW_SIGN_RSA_MD5
*** and %VERIFY_ALLOW_X509_V1_CA_CRT.

*** libgnutls: gnutls_x509_crt_print prints signature algorithm in oneline mode.

*** libgnutls: gnutls_openpgp_crt_print supports oneline mode.

*** libgnutls: gnutls_handshake when sending client hello during a
rehandshake, will not offer a version number larger than the current.

*** libgnutls: New interface to get key id for certificate requests.
gnutls_x509_crq_get_key_id: ADDED.

*** libgnutls: gnutls_x509_crq_print will now also print public key id.

*** certtool: --verify-chain now prints results of using library verification.

*** libgnutls: Libgcrypt initialization changed.

*** libgnutls: Small byte reads via gnutls_record_recv() optimized.

*** gnutls-cli: Return non-zero exit code on error conditions.

*** gnutls-cli: Corrected bug which caused a rehandshake request to be ignored.

*** certtool: allow setting arbitrary key purpose object identifiers.

*** libgnutls: Change detection of when to use a linker version script.
Use --enable-ld-version-script or --disable-ld-version-script to
override auto-detection logic.

*** Fix warnings and build GnuTLS with more warnings enabled.

*** New API to set X.509 credentials from PKCS#12 memory structure.
gnutls_certificate_set_x509_simple_pkcs12_mem: ADDED

*** Old libgnutls.m4 and libgnutls-config scripts removed.
Please use pkg-config instead.

*** libgnutls: Added functions to handle CRL extensions.
gnutls_x509_crl_get_authority_key_id: ADDED
gnutls_x509_crl_get_number: ADDED
gnutls_x509_crl_get_extension_oid: ADDED
gnutls_x509_crl_get_extension_info: ADDED
gnutls_x509_crl_get_extension_data: ADDED
gnutls_x509_crl_set_authority_key_id: ADDED
gnutls_x509_crl_set_number: ADDED

*** libgnutls: Added functions to handle X.509 extensions in Certificate
Requests.
gnutls_x509_crq_get_key_rsa_raw: ADDED
gnutls_x509_crq_get_attribute_info: ADDED
gnutls_x509_crq_get_attribute_data: ADDED
gnutls_x509_crq_get_extension_info: ADDED
gnutls_x509_crq_get_extension_data: ADDED
gnutls_x509_crq_get_key_usage: ADDED
gnutls_x509_crq_get_basic_constraints: ADDED
gnutls_x509_crq_get_subject_alt_name: ADDED
gnutls_x509_crq_get_subject_alt_othername_oid: ADDED
gnutls_x509_crq_get_extension_by_oid: ADDED
gnutls_x509_crq_set_subject_alt_name: ADDED
gnutls_x509_crq_set_basic_constraints: ADDED
gnutls_x509_crq_set_key_usage: ADDED
gnutls_x509_crq_get_key_purpose_oid: ADDED
gnutls_x509_crq_set_key_purpose_oid: ADDED
gnutls_x509_crq_print: ADDED
gnutls_x509_crt_set_crq_extensions: ADDED

*** certtool: Print and set CRL and CRQ extensions.

*** minitasn1: Internal copy updated to libtasn1 v2.1.

*** examples: Now released into the public domain.

*** The Texinfo and GTK-DOC manuals were improved.

*** Several self-tests were added and others improved.

*** API/ABI changes in GnuTLS 2.8 compared to GnuTLS 2.6.x
No offically supported interfaces have been modified or removed.  The
library should be completely backwards compatible on both the source
and binary level.

The shared library no longer exports some symbols that have never been
officially supported, i.e., not mentioned in any of the header files.
The symbols are:

  _gnutls*
  gnutls_asn1_tab
  
Normally when symbols are removed, the shared library version has to
be incremented.  This leads to a significant cost for everyone using
the library.  Because none of the above symbols have ever been
intended for use by well-behaved applications, we decided that the it
would be better for those applications to pay the price rather than
incurring problems on the majority of applications.

If it turns out that applications have been using unofficial
interfaces, we will need to release a follow-on release on the v2.8
branch to exports additional interfaces.  However, initial testing
suggests that few if any applications have been using any of the
internal symbols.

Although not a new change compared to 2.6.x, we'd like to remind you
interfaces have been modified so that X.509 chain verification now
also checks activation/expiration times on certificates.  The affected
functions are:

gnutls_x509_crt_list_verify: CHANGED, checks activation/expiration times.
gnutls_certificate_verify_peers: Likewise.
gnutls_certificate_verify_peers2: Likewise.
GNUTLS_CERT_NOT_ACTIVATED: ADDED.
GNUTLS_CERT_EXPIRED: ADDED.
GNUTLS_VERIFY_DISABLE_TIME_CHECKS: ADDED.

This change in behaviour was made during the GnuTLS 2.6.x cycle, and
we gave our rationale for it in earlier release notes.

The following symbols have been added to the library:

gnutls_certificate_set_x509_simple_pkcs12_mem: ADDED
gnutls_x509_crl_get_authority_key_id: ADDED
gnutls_x509_crl_get_extension_data: ADDED
gnutls_x509_crl_get_extension_info: ADDED
gnutls_x509_crl_get_extension_oid: ADDED
gnutls_x509_crl_get_number: ADDED
gnutls_x509_crl_set_authority_key_id: ADDED
gnutls_x509_crl_set_number: ADDED
gnutls_x509_crq_get_attribute_data: ADDED
gnutls_x509_crq_get_attribute_info: ADDED
gnutls_x509_crq_get_basic_constraints: ADDED
gnutls_x509_crq_get_extension_by_oid: ADDED
gnutls_x509_crq_get_extension_data: ADDED
gnutls_x509_crq_get_extension_info: ADDED
gnutls_x509_crq_get_key_id: ADDED.
gnutls_x509_crq_get_key_purpose_oid: ADDED
gnutls_x509_crq_get_key_rsa_raw: ADDED
gnutls_x509_crq_get_key_usage: ADDED
gnutls_x509_crq_get_subject_alt_name: ADDED
gnutls_x509_crq_get_subject_alt_othername_oid: ADDED
gnutls_x509_crq_print: ADDED
gnutls_x509_crq_set_basic_constraints: ADDED
gnutls_x509_crq_set_key_purpose_oid: ADDED
gnutls_x509_crq_set_key_usage: ADDED
gnutls_x509_crq_set_subject_alt_name: ADDED
gnutls_x509_crt_get_verify_algorithm: ADDED
gnutls_x509_crt_set_crq_extensions: ADDED
gnutls_x509_crt_verify_hash: ADDED

The following interfaces have been added to the header files:

GNUTLS_VERSION: ADDED, replaces LIBGNUTLS_VERSION.
GNUTLS_VERSION_MAJOR: ADDED, replaces LIBGNUTLS_VERSION_MAJOR.
GNUTLS_VERSION_MINOR: ADDED, replaces LIBGNUTLS_VERSION_MINOR.
GNUTLS_VERSION_PATCH: ADDED, replaces LIBGNUTLS_VERSION_PATCH.
GNUTLS_VERSION_NUMBER: ADDED, replaces LIBGNUTLS_VERSION_NUMBER.
GNUTLS_EXTRA_VERSION: ADDED, replaces LIBGNUTLS_EXTRA_VERSION.

The following interfaces have been deprecated:

LIBGNUTLS_VERSION: DEPRECATED.
LIBGNUTLS_VERSION_MAJOR: DEPRECATED.
LIBGNUTLS_VERSION_MINOR: DEPRECATED.
LIBGNUTLS_VERSION_PATCH: DEPRECATED.
LIBGNUTLS_VERSION_NUMBER: DEPRECATED.
LIBGNUTLS_EXTRA_VERSION: DEPRECATED.

* Version 2.7.14 (released 2009-05-26)

** libgnutls: Fix namespace issue with version symbol for libgnutls-extra.
The symbol LIBGNUTLS_EXTRA_VERSION were renamed to
GNUTLS_EXTRA_VERSION.  The old symbol will continue to work but is
deprecated.

** Doc: Several typo fixes in documentation.
Reported by Peter Hendrickson <pdh@wiredyne.com>.

** API and ABI modifications:
GNUTLS_VERSION: ADDED, replaces LIBGNUTLS_EXTRA_VERSION.
LIBGNUTLS_EXTRA_VERSION: DEPRECATED.

* Version 2.7.13 (released 2009-05-25)

** libgnutls: Fix version of some exported symbols in the shared library.
Reported by Andreas Metzler <ametzler@downhill.at.eu.org> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3576>.

** tests: Handle recently expired certificates in chainverify self-test.
Reported by Andreas Metzler <ametzler@downhill.at.eu.org> in
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3580>.

** API and ABI modifications:
No changes since last version.

* Version 2.7.12 (released 2009-05-20)

** gnutls-serv, gnutls-cli-debug: Make them work on Windows.

** tests/crq_key_id: Don't read entropy from /dev/random in self-test.
Reported by Andreas Metzler <ametzler@downhill.at.eu.org> in
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3570>.

** Fix build failures.
Missing sa_family_t and vsnprintf on IRIX.  Reported by "Tom
G. Christensen" <tgc@jupiterrise.com> in
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3571>.

** minitasn1: Internal copy updated to libtasn1 v2.2.
GnuTLS should work fine with libtasn1 v1.x and that is still
supported.

** API and ABI modifications:
No changes since last version.

* Version 2.7.11 (released 2009-05-18)

** minitasn1: Fix build failure when using internal libtasn1.
Reported by "Tom G. Christensen" <tgc@jupiterrise.com> in
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3548>.

** libgnutls: Fix build failure with --disable-cxx.
Reported by Andreas Metzler <ametzler@downhill.at.eu.org> in
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3557>.

** gnutls-serv: Fix build failure for unportable NI_MAXHOST/NI_MAXSERV.
Reported by "Tom G. Christensen" <tgc@jupiterrise.com> in
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3560>

** Building with many warning flags now requires --enable-gcc-warnings.
This avoids crying wolf for normal compiles.

** API and ABI modifications:
No changes since last version.

* Version 2.7.10 (released 2009-05-13)

** examples: Now released into the public domain.
This makes the license of the example code compatible with more
licenses, including the (L)GPL.

** minitasn1: Internal copy updated to libtasn1 v2.1.
GnuTLS should work fine with libtasn1 v1.x and that is still
supported.

** libgnutls: Fix crash in signature verification
The fix for the CVE-2009-1415 problem wasn't merged completely.

** doc: Fixes for GTK-DOC output.

** API and ABI modifications:
No changes since last version.

* Version 2.7.9 (released 2009-05-11)

** doc: Fix strings in man page of gnutls_priority_init.

** doc: Fix tables of error codes and supported algorithms.

** Fix build failure when cross-compiled using MinGW.

** Fix build failure when LZO is enabled.
Reported by Arfrever Frehtes Taifersar Arahesis
<arfrever.fta@gmail.com> in
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3522>.

** Fix build failure on systems without AF_INET6, e.g., Solaris 2.6.
Reported by "Tom G. Christensen" <tgc@jupiterrise.com> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3524>.

** Fix warnings in self-tests.

** API and ABI modifications:
No changes since last version.

* Version 2.7.8 (released 2009-05-03)

** libgnutls: Fix DSA key generation.
Merged from stable branch.  [GNUTLS-SA-2009-2] [CVE-2009-1416]

** libgnutls: Check expiration/activation time on untrusted certificates.
Merged from stable branch.  Reported by Romain Francoise
<romain@orebokech.com>.  This changes the semantics of
gnutls_x509_crt_list_verify, which in turn is used by
gnutls_certificate_verify_peers and gnutls_certificate_verify_peers2.
We add two new gnutls_certificate_status_t codes for reporting the new
error condition, GNUTLS_CERT_NOT_ACTIVATED and GNUTLS_CERT_EXPIRED.
We also add a new gnutls_certificate_verify_flags flag,
GNUTLS_VERIFY_DISABLE_TIME_CHECKS, that can be used to disable the new
behaviour.  [GNUTLS-SA-2009-3] [CVE-2009-1417]

** lib: Linker version scripts reduces number of exported symbols.
The linker version script now lists all exported ABIs explicitly, to
avoid accidentally exporting unintended functions.  Compared to
before, most symbols beginning with _gnutls* are no longer exported.
These functions have never been intended for use by applications, and
there were no prototypes for these function in the public header
files.  Thus we believe it is possible to do this without incrementing
the library ABI version which normally has to be done when removing an
interface.

** lib: Limit exported symbols on systems without LD linker scripts.
Before all symbols were exported.  Now we limit the exported symbols
to (for libgnutls and libgnutls-extra) gnutls* and (for libgnutls)
_gnutls*.  This is a superset of the actual supported ABI, but still
an improvement compared to before.  This is implemented using Libtool
-export-symbols-regex.  It is more portable than linker version
scripts.

** libgnutls: Incremented CURRENT/AGE libtool version to reflect new symbols.
This should have been done in the last release.

** gnutls-serv: Listen on all interfaces, including both IPv4 and IPv6.
Reported by Peter Hendrickson <pdh@wiredyne.com> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3476>.

** doc: Improved sections for the info manual.
We now follow the advice given by the texinfo manual on which
directory categories to use.  In particular, libgnutls moved from the
'GNU Libraries' section to the 'Software libraries' and the command
line tools moved from 'Network Applications' to 'System
Administration'.

** API and ABI modifications:
gnutls_x509_crt_list_verify: CHANGED, checks activation/expiration times.
gnutls_certificate_verify_peers: Likewise.
gnutls_certificate_verify_peers2: Likewise.
GNUTLS_CERT_NOT_ACTIVATED: ADDED.
GNUTLS_CERT_EXPIRED: ADDED.
GNUTLS_VERIFY_DISABLE_TIME_CHECKS: ADDED.

* Version 2.7.7 (released 2009-04-20)

** libgnutls: Applied patch by Cedric Bail to add functions
gnutls_x509_crt_verify_hash() and gnutls_x509_crt_get_verify_algorithm().

** gnutls.pc: Add -ltasn1 to 'pkg-config --libs --static gnutls' output.
Reported by Andreas Metzler <ametzler@downhill.at.eu.org> in
<http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3467>.

** minitasn1: Internal copy updated to libtasn1 v1.8.
GnuTLS is also internally ready to be used with libtasn1 v2.0.

** doc: Fix build failure of errcodes/printlist.
Reported by Roman Bogorodskiy <novel@FreeBSD.org> in
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3435>.

** i18n: The GnuTLS gettext domain is now 'libgnutls' instead of 'gnutls'.
It is currently only used by the core library.  This will enable a new
domain 'gnutls' for translations of the command line tools.

** Corrected possible memory corruption on signature verification failure. 
Reported by Miroslav Kratochvil <exa.exa@gmail.com>

** API and ABI modifications:
gnutls_x509_crt_verify_hash: ADDED
gnutls_x509_crt_get_verify_algorithm: ADDED

* Version 2.7.6 (released 2009-02-27)

** certtool: Query for multiple dnsName subjectAltName in interactive mode.
This applies both to generating certificates and certificate requests.

** pkix.asn: Removed unneeded definitions to reduce memory usage.

** gnutls-cli: No longer accepts V1 CAs by default during X.509 chain verify.
Use --priority NORMAL:%VERIFY_ALLOW_X509_V1_CA_CRT to permit V1 CAs to
be used for chain verification.

** gnutls-serv: No longer disable MAC padding by default.
Use --priority NORMAL:%COMPAT to disable MAC padding again.

** gnutls-cli: Certificate information output format changed.
The tool now uses libgnutls' functions to print certificate
information.  This avoids code duplication.

** libgnutls: New priority strings %VERIFY_ALLOW_SIGN_RSA_MD5
** and %VERIFY_ALLOW_X509_V1_CA_CRT.
They can be used to override the default certificate chain validation
behaviour.

** libgnutls: Added %SSL3_RECORD_VERSION priority string that allows to 
specify the client hello message record version. Used to overcome buggy 
TLS servers. Report by Martin von Gagern.

** libgnutls: gnutls_x509_crt_print prints signature algorithm in oneline mode.

** libgnutls: gnutls_openpgp_crt_print supports oneline mode.

** doc: Update gnutls-cli and gnutls-serv --help output descriptions.

** API and ABI modifications:
No changes since last version.

* Version 2.7.5 (released 2009-02-06)

** libgnutls: Accept chains where intermediary certs are trusted.
Before GnuTLS needed to validate the entire chain back to a
self-signed certificate.  GnuTLS will now stop looking when it has
found an intermediary trusted certificate.  The new behaviour is
useful when chains, for example, contains a top-level CA, an
intermediary CA signed using RSA-MD5, and an end-entity certificate.
To avoid chain validation errors due to the RSA-MD5 cert, you can
explicitly add the intermediary RSA-MD5 cert to your trusted certs.
The signature on trusted certificates are not checked, so the chain
has a chance to validate correctly.  Reported by "Douglas E. Engert"
<deengert@anl.gov> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3351>.

** libgnutls: result_size in gnutls_hex_encode now holds
the size of the result. Report by John Brooks <special@dereferenced.net>.

** libgnutls: gnutls_handshake when sending client hello during a
rehandshake, will not offer a version number larger than the current.
Reported by Tristan Hill <stan@saticed.me.uk>.

** libgnutls: Permit V1 Certificate Authorities properly.
Before they were mistakenly rejected even though
GNUTLS_VERIFY_ALLOW_ANY_X509_V1_CA_CRT and/or
GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT were supplied.  Reported by
"Douglas E. Engert" <deengert@anl.gov> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3351>.

** API and ABI modifications:
No changes since last version.

* Version 2.7.4 (released 2009-01-07)

** libgnutls: deprecate X.509 validation chains using MD5 and MD2 signatures.
This is a bugfix -- the previous attempt to do this from internal x509
certificate verification procedures did not return the correct value
for certificates using a weak hash.  Reported by Daniel Kahn Gillmor
<dkg@fifthhorseman.net> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3332>,
debugged and patch by Tomas Mraz <tmraz@redhat.com> and Daniel Kahn
Gillmor <dkg@fifthhorseman.net>.

** libgnutls: New interface to get key id for certificate requests.
Patch from David Marín Carreño <davefx@gmail.com> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3321>.

** libgnutls: gnutls_x509_crq_print will now also print public key id.

** certtool: --verify-chain now prints results of using library verification.
Earlier, certtool --verify-chain used its own validation algorithm
which wasn't guaranteed to give the same result as the libgnutls
internal validation algorithm.  Now this command print a new final
line with header 'Chain verification output:' that contains the result
from using the internal verification algorithm on the same chain.

** tests: Add crq_key_id self-test of gnutls_x509_crq_get_key_id.

** API and ABI modifications:
gnutls_x509_crq_get_key_id: ADDED.

* Version 2.7.3 (released 2008-12-10)

** libgnutls: Fix chain verification for chains that ends with RSA-MD2 CAs.
Reported by Michael Kiefer <Michael-Kiefer@web.de> in
<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507633> forwarded by
Andreas Metzler <ametzler@downhill.at.eu.org> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3309>.

** libgnutls: Libgcrypt initialization changed.
If libgcrypt has not already been initialized, GnuTLS will now
initialize libgcrypt with disabled secure memory.  Initialize
libgcrypt explicitly in your application if you want to enable secure
memory.  Before GnuTLS initialized libgcrypt to use GnuTLS's memory
allocation functions, which doesn't use secure memory, so there is no
real change in behaviour.

** libgnutls: Fix memory leak in PSK authentication.
Reported by Michael Weiser <michael@weiser.dinsnail.net> in
<http://permalink.gmane.org/gmane.network.gnutls.general/1465>.

** libgnutls: Small byte reads via gnutls_record_recv() optimized.

** certtool: Move gcry_control(GCRYCTL_ENABLE_QUICK_RANDOM, 0) call earlier.
It needs to be invoked before libgcrypt is initialized.

** gnutls-cli: Return non-zero exit code on error conditions.

** gnutls-cli: Corrected bug which caused a rehandshake request to be ignored.

** tests: Added chainverify self-test that tests X.509 chain verifications.

** API and ABI modifications:
No changes since last version.

* Version 2.7.2 (released 2008-11-18)

** libgnutls: Fix X.509 certificate chain validation error. [GNUTLS-SA-2008-3]
The flaw makes it possible for man in the middle attackers (i.e.,
active attackers) to assume any name and trick GnuTLS clients into
trusting that name.  Thanks for report and analysis from Martin von
Gagern <Martin.vGagern@gmx.net>.  [CVE-2008-4989]

Any updates with more details about this vulnerability will be added
to <http://www.gnu.org/software/gnutls/security.html>

** libgnutls: Fix namespace issue with version symbols.
The symbols LIBGNUTLS_VERSION, LIBGNUTLS_VERSION_MAJOR,
LIBGNUTLS_VERSION_MINOR, LIBGNUTLS_VERSION_PATCH, and
LIBGNUTLS_VERSION_NUMBER were renamed to GNUTLS_VERSION_NUMBER,
GNUTLS_VERSION_MAJOR, GNUTLS_VERSION_MINOR, GNUTLS_VERSION_PATCH, and
GNUTLS_VERSION_NUMBER respectively.  The old symbols will continue to
work but are deprecated.

** certtool: allow setting arbitrary key purpose object identifiers.

** libgnutls: Fix detection of C99 macros, to make debug logging work again.

** libgnutls: Add missing prototype for gnutls_srp_set_prime_bits.
Reported by Kevin Quick <quick@sparq.org> in
<https://savannah.gnu.org/support/index.php?106454>.

** libgnutls-extra: Make building with LZO compression work again.
Build failure reported by Arfrever Frehtes Taifersar Arahesis
<arfrever.fta@gmail.com> in
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3194>.

** libgnutls: Change detection of when to use a linker version script.
Use --enable-ld-version-script or --disable-ld-version-script to
override auto-detection logic.

** doc: Change license on the manual to GFDLv1.3+.

** doc: GTK-DOC fixes for new splitted configuration system.

** doc: Texinfo stylesheet uses white background.

** tests: Add cve-2008-4989.c self-test.
Tests regressions of the GNUTLS-SA-2008-3 security problem, and the
follow-on problem with crashes on length 1 certificate chains.

** gnulib: Deprecated modules removed.
Modules include memchr and memcmp.

** Fix warnings and build GnuTLS with more warnings enabled.

** minitasn1: Internal copy updated to libtasn1 v1.7.

** API and ABI modifications:
gnutls_certificate_set_x509_simple_pkcs12_mem: ADDED
GNUTLS_VERSION: ADDED, replaces LIBGNUTLS_VERSION.
GNUTLS_VERSION_MAJOR: ADDED, replaces LIBGNUTLS_VERSION_MAJOR.
GNUTLS_VERSION_MINOR: ADDED, replaces LIBGNUTLS_VERSION_MINOR.
GNUTLS_VERSION_PATCH: ADDED, replaces LIBGNUTLS_VERSION_PATCH.
GNUTLS_VERSION_NUMBER: ADDED, replaces LIBGNUTLS_VERSION_NUMBER.
LIBGNUTLS_VERSION: DEPRECATED.
LIBGNUTLS_VERSION_MAJOR: DEPRECATED.
LIBGNUTLS_VERSION_MINOR: DEPRECATED.
LIBGNUTLS_VERSION_PATCH: DEPRECATED.
LIBGNUTLS_VERSION_NUMBER: DEPRECATED.

* Version 2.7.1 (released 2008-10-31)

** certtool: print a PKCS #8 key even if it is not encrypted.

** Old libgnutls.m4 and libgnutls-config scripts removed.
Please use pkg-config instead.

** Configuration system modified.
There is now a configure script in lib/ and libextra/ as well, because
gnulib works better with a config.h per gnulib directory.

** API and ABI modifications:
No changes since last version.

* Version 2.7.0 (released 2008-10-16)

** libgnutls: Added functions to handle CRL extensions.

** libgnutls: Added functions to handle X.509 extensions in Certificate
Requests.

** libgnutls: Improved error string for GNUTLS_E_AGAIN.
Suggested by "Lavrentiev, Anton (NIH/NLM/NCBI) [C]" <lavr@ncbi.nlm.nih.gov>.

** certtool: Print and set CRL and CRQ extensions.

** libgnutls-extra: Protect internal symbols with static.
Fixes problem when linking certtool statically.  Tiny patch from Aaron
Ucko <ucko@ncbi.nlm.nih.gov>.

** libgnutls-openssl: fix out of bounds access.
Problem in X509_get_subject_name and X509_get_issuer_name.  Tiny patch
from Thomas Viehmann <tv@beamnet.de>.

** libgnutlsxx: Define server_session::get_srp_username even if no SRP.

** tests: Make tests compile when using internal libtasn1.
Patch by ludo@gnu.org (Ludovic Courtès).

** Changed detection of libtasn1 and libgcrypt to avoid depending on *-config.
We now require a libgcrypt that has Camellia constants declared in
gcrypt.h, which means v1.3.0 or later.

** API and ABI modifications:
gnutls_x509_crl_get_authority_key_id: ADDED
gnutls_x509_crl_get_number: ADDED
gnutls_x509_crl_get_extension_oid: ADDED
gnutls_x509_crl_get_extension_info: ADDED
gnutls_x509_crl_get_extension_data: ADDED
gnutls_x509_crl_set_authority_key_id: ADDED
gnutls_x509_crl_set_number: ADDED
gnutls_x509_crq_get_key_rsa_raw: ADDED
gnutls_x509_crq_get_attribute_info: ADDED
gnutls_x509_crq_get_attribute_data: ADDED
gnutls_x509_crq_get_extension_info: ADDED
gnutls_x509_crq_get_extension_data: ADDED
gnutls_x509_crq_get_key_usage: ADDED
gnutls_x509_crq_get_basic_constraints: ADDED
gnutls_x509_crq_get_subject_alt_name: ADDED
gnutls_x509_crq_get_subject_alt_othername_oid: ADDED
gnutls_x509_crq_get_extension_by_oid: ADDED
gnutls_x509_crq_set_subject_alt_name: ADDED
gnutls_x509_crq_set_basic_constraints: ADDED
gnutls_x509_crq_set_key_usage: ADDED
gnutls_x509_crq_get_key_purpose_oid: ADDED
gnutls_x509_crq_set_key_purpose_oid: ADDED
gnutls_x509_crq_print: ADDED
gnutls_x509_crt_set_crq_extensions: ADDED

* Version 2.6.6 (released 2009-04-30)

** libgnutls: Corrected double free on signature verification failure.
Reported by Miroslav Kratochvil <exa.exa@gmail.com>.  See the advisory
for more details.  [GNUTLS-SA-2009-1] [CVE-2009-1415]

** libgnutls: Fix DSA key generation.
Noticed when investigating the previous GNUTLS-SA-2009-1 problem.  All
DSA keys generated using GnuTLS 2.6.x are corrupt.  See the advisory
for more details.  [GNUTLS-SA-2009-2] [CVE-2009-1416]

** libgnutls: Check expiration/activation time on untrusted certificates.
Reported by Romain Francoise <romain@orebokech.com>.  Before the
library did not check activation/expiration times on certificates, and
was documented as not doing so.  We have realized that many
applications that use libgnutls, including gnutls-cli, fail to perform
proper checks.  Implementing similar logic in all applications leads
to code duplication.  Hence, we decided to check whether the current
time (as reported by the time function) is within the
activation/expiration period of certificates when verifying untrusted
certificates.

This changes the semantics of gnutls_x509_crt_list_verify, which in
turn is used by gnutls_certificate_verify_peers and
gnutls_certificate_verify_peers2.  We add two new
gnutls_certificate_status_t codes for reporting the new error
condition, GNUTLS_CERT_NOT_ACTIVATED and GNUTLS_CERT_EXPIRED.  We also
add a new gnutls_certificate_verify_flags flag,
GNUTLS_VERIFY_DISABLE_TIME_CHECKS, that can be used to disable the new
behaviour.

More details about the vulnerabilities will be posted at
<http://www.gnu.org/software/gnutls/security.html>.

** gnutls-cli, gnutls-cli-debug: Fix AIX build problem.
Reported by LAUPRETRE François (P) <francois.laupretre@ratp.fr> in
<http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3468>.

** tests: Fix linking of tests/openpgp/keyring self-test.
Reported by Daniel Black in <https://savannah.gnu.org/support/?106543>.

** API and ABI modifications:
gnutls_x509_crt_list_verify: CHANGED, checks activation/expiration times.
gnutls_certificate_verify_peers: Likewise.
gnutls_certificate_verify_peers2: Likewise.
GNUTLS_CERT_NOT_ACTIVATED: ADDED.
GNUTLS_CERT_EXPIRED: ADDED.
GNUTLS_VERIFY_DISABLE_TIME_CHECKS: ADDED.

* Version 2.6.5 (released 2009-04-11)

** libgnutls: Added %SSL3_RECORD_VERSION priority string that allows to
specify the client hello message record version. Used to overcome buggy
TLS servers. Report by Martin von Gagern.

** GnuTLS no longer uses the libtasn1-config script to find libtasn1.
Libtasn1 0.3.4 or later is required.  This is to align with the
upcoming libtasn1 v2.0 release that doesn't have a libtasn1-script.

** API and ABI modifications:
No changes since last version.

* Version 2.6.4 (released 2009-02-06)

** libgnutls: Accept chains where intermediary certs are trusted.
Before GnuTLS needed to validate the entire chain back to a
self-signed certificate.  GnuTLS will now stop looking when it has
found an intermediary trusted certificate.  The new behaviour is
useful when chains, for example, contains a top-level CA, an
intermediary CA signed using RSA-MD5, and an end-entity certificate.
To avoid chain validation errors due to the RSA-MD5 cert, you can
explicitly add the intermediary RSA-MD5 cert to your trusted certs.
The signature on trusted certificates are not checked, so the chain
has a chance to validate correctly.  Reported by "Douglas E. Engert"
<deengert@anl.gov> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3351>.

** libgnutls: result_size in gnutls_hex_encode now holds
the size of the result. Report by John Brooks <special@dereferenced.net>.

** libgnutls: gnutls_handshake when sending client hello during a
rehandshake, will not offer a version number larger than the current.
Reported by Tristan Hill <stan@saticed.me.uk>.

** libgnutls: Permit V1 Certificate Authorities properly.
Before they were mistakenly rejected even though
GNUTLS_VERIFY_ALLOW_ANY_X509_V1_CA_CRT and/or
GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT were supplied.  Reported by
"Douglas E. Engert" <deengert@anl.gov> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3351>.

** libgnutls: deprecate X.509 validation chains using MD5 and MD2 signatures.
This is a bugfix -- the previous attempt to do this from internal x509
certificate verification procedures did not return the correct value
for certificates using a weak hash.  Reported by Daniel Kahn Gillmor
<dkg@fifthhorseman.net> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3332>,
debugged and patch by Tomas Mraz <tmraz@redhat.com> and Daniel Kahn
Gillmor <dkg@fifthhorseman.net>.

** libgnutls: Fix compile error with Sun CC.
Reported by Jeff Cai <jeff.cai@sun.com> in
<https://savannah.gnu.org/support/?106549>.

** API and ABI modifications:
No changes since last version.

* Version 2.6.3 (released 2008-12-12)

** libgnutls: Fix chain verification for chains that ends with RSA-MD2 CAs.
Reported by Michael Kiefer <Michael-Kiefer@web.de> in
<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507633> forwarded by
Andreas Metzler <ametzler@downhill.at.eu.org> in
<http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3309>.

** libgnutls: Fix memory leak in PSK authentication.
Reported by Michael Weiser <michael@weiser.dinsnail.net> in
<http://permalink.gmane.org/gmane.network.gnutls.general/1465>.

** certtool: Move gcry_control(GCRYCTL_ENABLE_QUICK_RANDOM, 0) call earlier.
It needs to be invoked before libgcrypt is initialized.