GnuTLS NEWS -- History of user-visible changes. -*- outline -*- Copyright (C) 2000-2015 Free Software Foundation, Inc. Copyright (C) 2013-2015 Nikos Mavrogiannopoulos See the end for copying conditions. * Version 3.4.7 (released 2015-11-22) ** libgnutls: Properly require TLS 1.2 in all CBC-SHA256 and CBC-SHA384 ciphersuites. This solves an interoperability issue with openssl. Reported by Viktor Dukhovni. ** libgnutls: Corrected the setting of salt size in gnutls_pkcs12_mac_info(). ** libgnutls: On a rehandshake allow switching from anonymous to ECDHE and DHE ciphersuites. ** libgnutls: Corrected regression from 3.3.x which prevented ARCFOUR128 from using arbitrary key sizes. Reported by Andreas Schneider. ** libgnutls: Added GNUTLS_SKIP_GLOBAL_INIT macro to allow programs skipping the implicit global initialization. ** gnutls.pc: Don't include libtool specific options to link flags. Reported by Dan Kegel. ** tools: Better support for FTP AUTH TLS negotiation ** API and ABI modifications: gnutls_x509_crt_set_issuer_unique_id: Added gnutls_x509_crt_set_subject_unique_id: Added gnutls_certificate_set_flags: Added GNUTLS_CERTIFICATE_SKIP_KEY_CERT_MATCH: Added * Version 3.4.6 (released 2015-10-20) ** libgnutls: Added new simple verification functions. That avoids the need to install a callback to perform certificate verification. See doc/examples/ex-client-x509.c for usage. ** libgnutls: Introduced the security parameter 'future' which is at the 256-bit level of security, and 'ultra' was aligned to its documented size at 192-bits. ** libgnutls: When writing a certificate into a PKCS #11 token, ensure that CKA_SERIAL_NUMBER and CKA_ISSUER are written. Reported by Sumit Bose. ** libgnutls: Allow the presence of legacy ciphers and key exchanges in priority strings and consider them a no-op. ** libgnutls: Handle the extended master secret as a mandatory extension. That fixes incompatibility issues with Chromium (#45). Reported by Hubert Kario. ** libgnutls: Added the ability to copy a public key into a PKCS #11 token. ** tools: Added support for LDAP and XMPP negotiation for STARTTLS. ** p11tool: Allow writing a public key into a PKCS #11 token. ** certtool: Key generation security level was switched to HIGH. That is, by default the tool generates 3072 bit keys for RSA and DSA. ** API and ABI modifications: gnutls_session_set_verify_function: Added gnutls_session_set_verify_cert: Added gnutls_session_set_verify_cert2: Added gnutls_session_get_verify_cert_status: Added gnutls_pkcs11_copy_pubkey: Added * Version 3.4.5 (released 2015-09-12) ** libgnutls: When re-importing CRLs to a trust list ensure that there no duplicate entries. ** certtool: Removed any arbitrary limits imposed on input file sizes and maximum number of certificates imported. ** certtool: Allow specifying fixed dates on CRL generation. ** gnutls-cli-debug: Added check for inappropriate fallback support (RFC7507). ** API and ABI modifications: No changes since last version. * Version 3.4.4 (released 2015-08-10) ** libgnutls: added high level API (gnutls_prf_rfc5705) to access the PRF as specified by RFC5705. Suggestion and original patch by Rick van Rein. ** libgnutls: Link to trousers (TPM library) dynamically when this functionality is requested. ** libgnutls: Fix issue with server side sending the status request extension even when not requested. Reported by Jeremy Harris. ** libgnutls: Added support for RFC7507 by introducing the %FALLBACK_SCSV priority string option. Patch by Alessandro Ghedini. ** libgnutls: gnutls_pkcs11_privkey_generate2() will store the generated public key, unless the GNUTLS_PKCS11_OBJ_FLAG_NO_STORE_PUBKEY flag is specified. ** libgnutls: Corrected regression from 3.4.3 in loading PKCS #8 keys as fallback. Reported by Daniel Berrange. ** libgnutls: Allow the parsing of very long DNs. Also fixes double free in DN decoding [GNUTLS-SA-2015-3]. ** API and ABI modifications: gnutls_prf_rfc5705: Added gnutls_hex_encode2: Added gnutls_hex_decode2: Added * Version 3.4.3 (released 2015-07-12) ** libgnutls: Follow closely RFC5280 recommendations and use UTCTime for dates prior to 2050. ** libgnutls: Force 16-byte alignment to all input to ciphers (previously it was done only when cryptodev was enabled). ** libgnutls: Removed support for pthread_atfork() as it has undefined semantics when used with dlopen(), and may lead to a crash. ** libgnutls: corrected failure when importing plain files with gnutls_x509_privkey_import2(), and a password was provided. ** libgnutls: Don't reject certificates if a CA has the URI or IP address name constraints, and the end certificate doesn't have an IP address name or a URI set. ** libgnutls: set and read the hint in DHE-PSK and ECDHE-PSK ciphersuites. ** p11tool: Added --list-token-urls option, and print the token module name in list-tokens. ** API and ABI modifications: gnutls_ecc_curve_get_oid: Added gnutls_digest_get_oid: Added gnutls_pk_get_oid: Added gnutls_sign_get_oid: Added gnutls_ecc_curve_get_id: Added gnutls_oid_to_digest: Added gnutls_oid_to_pk: Added gnutls_oid_to_sign: Added gnutls_oid_to_ecc_curve: Added gnutls_pkcs7_get_signature_count: Added * Version 3.4.2 (released 2015-06-16) ** libgnutls: DTLS blocking API is more robust against infinite blocking, and will notify of more possible timeouts. ** libgnutls: corrected regression with Camellia-256-GCM cipher. Reported by Manuel Pegourie-Gonnard. ** libgnutls: Introduced the GNUTLS_NO_SIGNAL flag to gnutls_init(). That allows to disable SIGPIPE for writes done within gnutls. ** libgnutls: Enhanced the PKCS #7 API to allow signing and verification of structures. API moved to gnutls/pkcs7.h header. ** certtool: Added options to generate PKCS #7 bundles and signed structures. ** API and ABI modifications: gnutls_x509_dn_get_str: Added gnutls_pkcs11_get_raw_issuer_by_subject_key_id: Added gnutls_x509_trust_list_get_issuer_by_subject_key_id: Added gnutls_x509_crt_verify_data2: Added gnutls_pkcs7_get_crt_raw2: Added gnutls_pkcs7_signature_info_deinit: Added gnutls_pkcs7_get_signature_info: Added gnutls_pkcs7_verify_direct: Added gnutls_pkcs7_verify: Added gnutls_pkcs7_get_crl_raw2: Added gnutls_pkcs7_sign: Added gnutls_pkcs7_attrs_deinit: Added gnutls_pkcs7_add_attr: Added gnutls_pkcs7_get_attr: Added gnutls_pkcs7_print: Added * Version 3.4.1 (released 2015-05-03) ** libgnutls: gnutls_certificate_get_ours: will return the certificate even if a callback was used to send it. ** libgnutls: Check for invalid length in the X.509 version field. Without the check certificates with invalid length would be detected as having an arbitrary version. Reported by Hanno Böck. ** libgnutls: Handle DNS name constraints with a leading dot. Patch by Fotis Loukos. ** libgnutls: Updated system-keys support for windows to compile in more versions of mingw. Patch by Tim Kosse. ** libgnutls: Fix for MD5 downgrade in TLS 1.2 signatures. Reported by Karthikeyan Bhargavan [GNUTLS-SA-2015-2]. ** libgnutls: Reverted: The gnutls_handshake() process will enforce a timeout by default. That caused issues with non-blocking programs. ** certtool: It can generate SHA256 key IDs. ** gnutls-cli: fixed crash in --benchmark-ciphers. Reported by James Cloos. ** configure: re-enabled the --enable-local-libopts flag ** API and ABI modifications: gnutls_x509_crt_get_pk_ecc_raw: Added * Version 3.4.0 (released 2015-04-08) ** libgnutls: Added support for AES-CCM and AES-CCM-8 (RFC6655 and RFC7251) ciphersuites. The former are enabled by default, the latter need to be explicitly enabled, since they reduce the overall security level. ** libgnutls: Added support for Chacha20-Poly1305 ciphersuites following draft-mavrogiannopoulos-chacha-tls-05 and draft-irtf-cfrg-chacha20-poly1305-10. That is currently provided as technology preview and is not enabled by default, since there are no assigned ciphersuite points by IETF and there is no guarrantee of compatibility between draft versions. The ciphersuite priority string to enable it is "+CHACHA20-POLY1305". ** libgnutls: Added support for encrypt-then-authenticate in CBC ciphersuites (RFC7366 -taking into account its errata text). This is enabled by default and can be disabled using the %NO_ETM priority string. ** libgnutls: Added support for the extended master secret (triple-handshake fix) following draft-ietf-tls-session-hash-02. ** libgnutls: Added a new simple and hard to misuse AEAD API (crypto.h). ** libgnutls: SSL 3.0 is no longer included in the default priorities list. It has to be explicitly enabled, e.g., with a string like "NORMAL:+VERS-SSL3.0". ** libgnutls: ARCFOUR (RC4) is no longer included in the default priorities list. It has to be explicitly enabled, e.g., with a string like "NORMAL:+ARCFOUR-128". ** libgnutls: DSA signatures and DHE-DSS are no longer included in the default priorities list. They have to be explicitly enabled, e.g., with a string like "NORMAL:+DHE-DSS:+SIGN-DSA-SHA256:+SIGN-DSA-SHA1". The DSA ciphersuites were dropped because they had no deployment at all on the internet, to justify their inclusion. ** libgnutls: The priority string EXPORT was completely removed. The string was already defunc as support for the EXPORT ciphersuites was removed in GnuTLS 3.2.0. ** libgnutls: Added API to utilize system specific private keys in "gnutls/system-keys.h". It is currently provided as technology preview and is restricted to windows CNG keys. ** libgnutls: gnutls_x509_crt_check_hostname() and friends will use RFC6125 comparison of hostnames. That introduces a dependency on libidn. ** libgnutls: Depend on p11-kit 0.23.1 to comply with the final PKCS #11 URLs draft (draft-pechanec-pkcs11uri-21). ** libgnutls: Depend on nettle 3.1. ** libgnutls: Use getrandom() or getentropy() when available. That avoids the complexity of file descriptor handling and issues with applications closing all open file descriptors on startup. ** libgnutls: Use pthread_atfork() to detect fork when available. ** libgnutls: If a key purpose (extended key usage) is specified for verification, it is applied into intermediate certificates. The verification result GNUTLS_CERT_PURPOSE_MISMATCH is also introduced. ** libgnutls: When gnutls_certificate_set_x509_key_file2() is used in combination with PKCS #11, or TPM URLs, it will utilize the provided password as PIN if required. That removes the requirement for the application to set a callback for PINs in that case. ** libgnutls: priority strings VERS-TLS-ALL and VERS-DTLS-ALL are restricted to the corresponding protocols only, and the VERS-ALL string is introduced to catch all possible protocols. ** libgnutls: Added helper functions to obtain information on PKCS #8 structures. ** libgnutls: Certificate chains which are provided to gnutls_certificate_credentials_t will automatically be sorted instead of failing with GNUTLS_E_CERTIFICATE_LIST_UNSORTED. ** libgnutls: Added functions to export and set the record state. That allows for gnutls_record_send() and recv() to be offloaded (to kernel, hardware or any other subsystem). ** libgnutls: Added the ability to register application specific URL types, which express certificates and keys using gnutls_register_custom_url(). ** libgnutls: Added API to override existing ciphers, digests and MACs, e.g., to override AES-GCM using a system-specific accelerator. That is, (crypto.h) gnutls_crypto_register_cipher(), gnutls_crypto_register_aead_cipher(), gnutls_crypto_register_mac(), and gnutls_crypto_register_digest(). ** libgnutls: Added gnutls_ext_register() to register custom extensions. Contributed by Thierry Quemerais. ** libgnutls: Added gnutls_supplemental_register() to register custom supplemental data handshake messages. Contributed by Thierry Quemerais. ** libgnutls-openssl: it is no longer built by default. ** 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: Added the --key-id and --fingerprint options. ** certtool: Added the --verify-hostname, --verify-email and --verify-purpose options to be used in certificate chain verification, to simulate verification for specific hostname and key purpose (extended key usage). ** 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. ** p11tool: added options --set-id and --set-label. ** gnutls-cli: added options --priority-list and --save-cert. ** guile: Deprecated priority API has been removed. The old priority API, which had been deprecated for some time, is now gone; use 'set-session-priorities!' instead. ** guile: Remove RSA parameters and related procedures. This API had been deprecated. ** guile: Fix compilation on MinGW. Previously only the static version of the 'guile-gnutls-v-2' library would be built, preventing dynamic loading from Guile. ** API and ABI modifications: gnutls_record_get_state: Added gnutls_record_set_state: Added gnutls_aead_cipher_init: Added gnutls_aead_cipher_decrypt: Added gnutls_aead_cipher_encrypt: Added gnutls_aead_cipher_deinit: Added 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_pcert_import_x509_list: 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_x509_trust_list_get_issuer_by_dn: Added gnutls_pkcs11_get_raw_issuer_by_dn: 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 gnutls_record_discard_queued: Added gnutls_session_ext_master_secret_status: Added gnutls_priority_string_list: Added gnutls_dh_params_import_raw2: Added gnutls_memset: Added gnutls_memcmp: Added gnutls_pkcs12_bag_set_privkey: Added gnutls_ocsp_resp_get_responder_raw_id: Added gnutls_system_key_iter_deinit: Added gnutls_system_key_iter_get_info: Added gnutls_system_key_delete: Added gnutls_system_key_add_x509: Added gnutls_system_recv_timeout: Added gnutls_register_custom_url: Added gnutls_pkcs11_obj_list_import_url3: Added gnutls_pkcs11_obj_list_import_url4: Added gnutls_pkcs11_obj_set_info: Added gnutls_crypto_register_cipher: Added gnutls_crypto_register_aead_cipher: Added gnutls_crypto_register_mac: Added gnutls_crypto_register_digest: Added gnutls_ext_register: Added gnutls_supplemental_register: Added gnutls_supplemental_recv: Added gnutls_supplemental_send: Added gnutls_openpgp_crt_check_email: Added gnutls_x509_crt_check_email: Added gnutls_handshake_set_hook_function: Modified gnutls_pkcs11_privkey_generate3: Added gnutls_pkcs11_copy_x509_crt2: Added gnutls_pkcs11_copy_x509_privkey2: Added gnutls_pkcs11_obj_list_import_url: Removed gnutls_pkcs11_obj_list_import_url2: Removed gnutls_certificate_client_set_retrieve_function: Removed gnutls_certificate_server_set_retrieve_function: Removed gnutls_certificate_set_rsa_export_params: Removed gnutls_certificate_type_set_priority: Removed gnutls_cipher_set_priority: Removed gnutls_compression_set_priority: Removed gnutls_kx_set_priority: Removed gnutls_mac_set_priority: Removed gnutls_protocol_set_priority: Removed gnutls_rsa_export_get_modulus_bits: Removed gnutls_rsa_export_get_pubkey: Removed gnutls_rsa_params_cpy: Removed gnutls_rsa_params_deinit: Removed gnutls_rsa_params_export_pkcs1: Removed gnutls_rsa_params_export_raw: Removed gnutls_rsa_params_generate2: Removed gnutls_rsa_params_import_pkcs1: Removed gnutls_rsa_params_import_raw: Removed gnutls_rsa_params_init: Removed gnutls_sign_callback_get: Removed gnutls_sign_callback_set: Removed gnutls_x509_crt_verify_data: Removed gnutls_x509_crt_verify_hash: Removed gnutls_pubkey_get_verify_algorithm: Removed gnutls_x509_crt_get_verify_algorithm: Removed gnutls_pubkey_verify_hash: Removed gnutls_pubkey_verify_data: Removed gnutls_record_set_max_empty_records: Removed guile: set-session-cipher-priority!: Removed set-session-mac-priority!: Removed set-session-compression-method-priority!: Removed set-session-kx-priority!: Removed set-session-protocol-priority!: Removed set-session-certificate-type-priority!: Removed set-session-default-priority!: Removed set-session-default-export-priority!: Removed make-rsa-parameters: Removed rsa-parameters?: Removed set-certificate-credentials-rsa-export-parameters!: Removed pkcs1-import-rsa-parameters: Removed pkcs1-export-rsa-parameters: Removed * 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: Increa ...
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