* g10/build-packet.c (do_encrypted_aead): New.
(do_symkey_enc): Handle version 5.
(build_packet): Support the ENCRYPTED_AEAD packet.
* g10/cipher.c (MIN_PARTIAL_SIZE): Remove unused macro.
(AEAD_ENC_BUFFER_SIZE): New macro.
(my_iobuf_write): New.
(write_header): Rename to write_cfb_header. Adjust caller.
(set_ocb_nonce_and_ad): New.
(write_ocb_header): New.
(write_ocb_auth_tag): New.
(write_ocb_final_chunk): New.
(do_ocb_flush): New.
(do_ocb_free): New.
(cipher_filter_ocb): New.
* g10/filter.h (cipher_filter_context_t): Add fields for AEAD.
* g10/encrypt.c (encrypt_symmetric): For the use of a session key in
OCB mode.
(encrypt_seskey): Revamp to support OCB.
(use_aead): New.
(encrypt_simple): Support OCB.
(write_symkey_enc): Ditto.
(encrypt_crypt): Ditto.
(encrypt_filter): Handle OCB.
* g10/options.h (opt): Add field force_ocb.
* g10/gpg.c (oForceOCB): New.
(opts): New option "--force-ocb".
(main): Set force_ocb option.
* g10/gpgcompose.c (encrypt_seskey): New.
* g10/keygen.c (aead_available): New global var.
(keygen_set_std_prefs): Set AEAD feature by default in GNUPG mode. Add
parings of aead feature flag.
(keygen_get_std_prefs): Set aead flag.
(add_feature_aead): New.
(keygen_upd_std_prefs): Set OCB as preference if AEAD is enabled.
* g10/pkclist.c (select_aead_from_pklist): New.
(warn_missing_aead_from_pklist): New.
(select_mdc_from_pklist): Remove this unused function.
--
This extends the long available OCB and EAX decryption feature. Due
to the meanwhile expired patent on OCB there is no more reason for
using EAX. Thus we forcefully use OCB if the AEAD feature flag is set
on a key.
In GNUPG mode new keys are now created with the AEAD feature flag set.
Option --rfc4880 is one way to disable this.
GnuPG-bug-id: 6263
* g10/misc.c (compliance_failure): Do not fallback to CO_GNUPG. Print
compliance failure error and status for CO_DE_VS.
* g10/mainproc.c (proc_encrypted): Call compliance_failure in the
require-compliance error case.
* g10/encrypt.c (check_encryption_compliance): Ditto.
* g10/misc.c (openpgp_cipher_algo_mode_name): New.
* g10/decrypt-data.c (decrypt_data): Use function here.
--
With out this change we would see
gpg: cipher algorithm 'AES256' may not be used in
--compliance=de-vs mode
This is confusing because AES256 is compliant. Now we see
gpg: cipher algorithm 'AES256.OCB' may not be used in
--compliance=de-vs mode
which gives a hint on the problem.
* g10/misc.c (print_digest_rejected_note): Do not print in quiet mode.
(print_sha1_keysig_rejected_note): Ditto.
--
GnuPG-bug-id: 4893
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit e08e1d62d089a154ec5d7c80cd58e8e3b18d2d6b)
* g10/misc.c (pct_expando): Catch special case of the empty string.
Also map a NULL to the empty string.
* g10/photoid.c (show_photos): Make an empty string used as command
fail.
--
This patch also fixes a segv when calling gpg wrongly like
gpg -N \-foo@example.org
GnuPG-bug-id: 5117
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/misc.c (is_weak_digest): New.
(print_digest_algo_note): Use it here.
* g10/sig-check.c (check_signature_end_simple): Use it.
* g10/sign.c (hash_for): Do not use recipient_digest_algo if it is in
the least of weak digest algorithm.
--
If a message is signed and encrypted to several recipients, the to be
used digest algorithm is deduced from the preferences of the
recipient. This is so that all recipients are able to check the the
signature. However, if the sender has a declared an algorithm as
week, that algorithm shall not be used - in this case we fallback to
the standard way of selecting an algorithm.
Note that a smarter way of selecting the algo is to check this while
figuring out the algorithm - this needs more testing and thus we do it
the simple way.
Reported-by: Phil Pennock
Signed-off-by: Werner Koch <wk@gnupg.org>
Backported-from-master: 15746d60d492f5792e4a179ab0a08801b4049695
* common/sysutils.c (gnupg_stat): New.
* common/sysutils.h: Include sys/stat.h.
--
Yet another wrapper for Unicode support on Windows.
GnuPG-bug-id: 5098
Signed-off-by: Werner Koch <wk@gnupg.org>
Backported-from-master: 18e5dd7b03ced51611c9ba1345cf498a0aaf14a6)
* common/openpgpdefs.h (aead_algo_t): New.
(pkttype_t): Add PKT_ENCRYPTED_AEAD.
* g10/decrypt-data.c (struct decode_filter_context_s): Add fields for
AEAD.
(aead_set_nonce_and_ad): New.
(aead_checktag): New.
(decrypt_data): Support AEAD.
(aead_underflow): New.
(aead_decode_filter): New.
* g10/dek.h (DEK): Add field use_aead. Turn use_mdc,
algo_info_printed, and symmetric into bit flags.
* g10/mainproc.c (struct mainproc_context): Add field
seen_pkt_encrypted_aead.
(release_list): Clear it.
(have_seen_pkt_encrypted_aead): New.
(symkey_decrypt_seskey): Support AEAD.
(proc_symkey_enc): Ditto.
(proc_encrypted): Ditto.
(proc_plaintext): Ditto.
* g10/misc.c (MY_GCRY_CIPHER_MODE_EAX): New.
(openpgp_aead_test_algo): New.
(openpgp_aead_algo_name): New.
(openpgp_aead_algo_info): New.
* g10/packet.h (PKT_symkey_enc): Add field use_aead.
(PKT_user_id): Add field flags.aead
(PKT_public_key): Ditto.
(PKT_encrypted): Add fields for AEAD.
* g10/parse-packet.c (parse): Handle PKT_ENCRYPTED_AEAD.
(parse_symkeyenc): Support AEAD.
(parse_encrypted): Ditto.
(dump_sig_subpkt): Dump AEAD preference packet.
(parse_encrypted_aead): New.
--
This patch allows to decrypt data encrypted using the new AEAD
mechanism as specified in rfc4880bis. Although preferences are used
to enable this new mode, it is useful to have at least a decryption
option in case a user switches between GnuPG 2.2 and newer versions.
The new AEAD mechanism is much faster than the current CFB+MDC and
thus 2.2 will allow faster decryption of symmetric only decryption.
This patch is based on the current master (2.3) code base and includes
a few other patches. In particular
commit 44be675b759d27bac310c2de8bae1b7882a26b65
(gpg: More check for symmetric key encryption.)
is included.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/misc.c (map_pk_gcry_to_openpgp): Add EdDSA mapping.
--
Due to this missing mapping a "gpg --export --full-gen-key" with
selection "13 - Existing key" did not worked for an ed25519 key.
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 346a98fabe03adf2e202e36fc2aa24b1c2571154)
* g10/misc.c (openpgp_pk_test_algo2): Add extra check.
--
The problem is that --key-gen --batch with a parameter file didn't
detect that Elgamal is not capable of signing and so an error was only
triggered at the time the self-signature was created. See the code
comment for details.
GnuPG-bug-id: 4329
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit f97dc55ff1b041071bc3cbe98aa761bf77bb7ac8)
--
WIN32_LEAN_AND_MEAN is required to avoid definitions of grp1, grp2,
and grp3 in dlgs.h, which is included by windows.h.
Fixes-commit: fd595c9d3642dba437fbe0f6e25d7aaaae095f94
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* common/Makefile.am (common_sources): Add new files.
* common/compliance.c: New file. Move 'gnupg_pk_is_compliant' here,
and tweak it to not rely on types private to gpg.
* common/compliance.h: New file. Move the compliance enum here.
* g10/keylist.c (print_compliance_flags): Adapt callsite.
* g10/main.h (gnupg_pk_is_compliant): Remove prototype.
* g10/misc.c (gnupg_pk_is_compliant): Remove function.
* g10/options.h (opt): Use the new compliance enum.
* sm/keylist.c (print_compliance_flags): Use the common functions.
Signed-off-by: Justus Winter <justus@g10code.com>
* g10/misc.c (gnupg_pk_is_compliant): Compare against CO_RFC2440, not
RFC2440 which is actually a predicate.
Fixes-commit: fe0b37e123ded51cc5f4cb5e3547fdfbce37a43e
Signed-off-by: Justus Winter <justus@g10code.com>
* common/openpgpdefs.h (CIPHER_ALGO_PRIVATE10, PUBKEY_ALGO_PRIVATE10)
(DIGEST_ALGO_PRIVATE10, COMPRESS_ALGO_PRIVATE10): New.
* g10/misc.c (map_pk_gcry_to_openpgp): Add type conversion.
(map_cipher_openpgp_to_gcry, openpgp_cipher_algo_name)
(openpgp_pk_test_algo2, map_md_openpgp_to_gcry)
(pubkey_get_npkey): Add default handling.
--
Compilers may emit code assuming the maximum value of enum type.
According to OpenPGP specification, there are cases for private uses.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* g10/misc.c (gnupg_pk_is_compliant): New.
* g10/keylist.c (print_compliance_flags): New.
(list_keyblock_colon): Call it here.
* sm/keylist.c (print_compliance_flags): New.
(list_cert_colon): Call it here.
--
This patch is to convey information about DE_VS compliant keys to the
caller. The double digit value is used so that parsers do the right
thing and don't just look for a single digit.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/options.h (CO_DE_VS): New.
(GNUPG): Also allow CO_DE_VS.
* g10/gpg.c (oDE_VS): New.
(parse_compliance_option): Add "de-vs".
(set_compliance_option): Set "de-vs".
* g10/misc.c (compliance_option_string): Return a description string.
(compliance_failure): Ditto.
* g10/keygen.c (ask_algo): Take care of CO_DE_VS.
(get_keysize_range): Ditto.
(ask_curve): Add new field to CURVES and trun flags into bit flags.
Allow only Brainpool curves in CO_DE_VS mode.
--
As of now this compliance mode only restricts the set of algorithms
and curves which can be created.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/misc.c (print_reported_error): New.
--
Often the user is only interested in a catch all error code like "not
found" but sometimes it is useful to also see the real reason. By
this function this can easily be achieved. Example:
err = search_for_key (keyid)
if (err)
{
log_info ("error locating key '%s': %s\n",
keyid, gpg_strerror (GPG_ERR_NOT_FOUND));
print_reported_error (err, GPG_ERR_NOT_FOUND);
}
results in
gpg: error locating key 'foobar': not found
gpg: (reported error: no keyring <keybox>)
where the second line is only printed in verbose mode and if ERR is
not GPG_ERR_NOT_FOUND.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/getkey.c (parse_def_secret_key): Change error message. Replace
log_debug by log_info.
* g10/gpg.c (check_user_ids): Make function static. Change error
messages.
(main): Change error messages.
* g10/revoke.c (gen_revoke): Ditto.
--
There are other smaller changes not described above.
This change tries to avoid new error messages so not to increase the
the number of translated strings or break too many existing
translations. It also tries to use existing strings and changes the
quoting to the most common style used in gpg.
Key specifications should in general use double quotes. Other values
should use single quotes. However. sometimes it is not easy to
distinguish between values given on the command line and key
specifications. According to old GNU coding standards diagnostics
should not start capitalized - whether this is a good idea is a
different thing but we used this rules for most strings. However,
strings which are used interactively should be properly capitalized
and end with a dot.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/util.h (zb32_encode): Move prototype to ...
* common/zb32.h: new. Include this for all callers of zb32_encode.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/main.h: Add rejection_shown flag to each weakhash struct
* g10/misc.c (print_digest_algo_note, additional_weak_digest): Do not
treat MD5 separately; (print_digest_rejected_note): Use
weakhash.rejection_shown instead of static shown.
* g10/options.h (opt): Change from additional_weak_digests to
weak_digests.
* g10/sig-check.c: Do not treat MD5 separately.
* g10/gpg.c (main): Explicitly set MD5 as weak.
* g10/gpgv.c (main): Explicitly set MD5 as weak.
--
Previously, only one weak digest rejection message was shown, of
whichever was the first type encountered. This meant that if "gpg
--weak-digest SHA224" encountered both an MD5 digest and a SHA224
digest, it would only show the user that the MD5 digest was rejected.
In order to let the user know which algorithms were rejected, we
needed to move the "shown" flag into a per-weak-algorithm location.
Given this additional complication, it made no sense to continue to
treat MD5 specially, so it is added as a default weak algorithm in the
same opt.weak_digests data structure as any other.
Signed-Off-By: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
* g10/misc.c (print_md5_rejected_note): Rename to ..
(print_digest_rejected_note): this. Parameterize function to take an
enum gcry_md_algos.
* g10/sig-check.c: Use print_digest_rejected_note() when rejecting
signatures.
--
76afaed65e3b0ddfa4923cb577ada43217dd4b18 allowed extra --weak-digests,
but removed the one call to print_md5_rejected_note(). This replaces
and generalizes that warning.
Signed-Off-By: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
* g10/options.h: Add additional_weak_digests linked list to opts.
* g10/main.h: Declare weakhash linked list struct and
additional_weak_digest() function to insert newly-declared weak
digests into opts.
* g10/misc.c: (additional_weak_digest): New function.
(print_digest_algo_note): Check for deprecated digests; use proper
gcry_md_algos type.
* g10/sig-check.c: (do_check): Reject weak digests in addition to MD5.
* g10/gpg.c: Add --weak-digest option to gpg.
* doc/gpg.texi: Document gpg --weak-digest option.
* g10/gpgv.c: Add --weak-digest option to gpgv.
* doc/gpgv.texi: Document gpgv --weak-digest option.
--
gpg and gpgv treat signatures made over MD5 as unreliable, unless the
user supplies --allow-weak-digests to gpg. Signatures over any other
digest are considered acceptable.
Despite SHA-1 being a mandatory-to-implement digest algorithm in RFC
4880, the collision-resistance of SHA-1 is weaker than anyone would
like it to be.
Some operators of high-value targets that depend on OpenPGP signatures
may wish to require their signers to use a stronger digest algorithm
than SHA1, even if the OpenPGP ecosystem at large cannot deprecate
SHA1 entirely today.
This changeset adds a new "--weak-digest DIGEST" option for both gpg
and gpgv, which makes it straightforward for anyone to treat any
signature or certification made over the specified digest as
unreliable.
This option can be supplied multiple times if the operator wishes to
deprecate multiple digest algorithms, and will be ignored completely
if the operator supplies --allow-weak-digests (as before).
MD5 is still always considered weak, regardless of any further
--weak-digest options supplied.
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
Capitialized some comments, shorted a line in do_check, and changed
subject to name the option. -wk
* g10/parse-packet.c (set_packet_list_mode): Set mpi_print_mode.
* g10/misc.c (mpi_print): Do not print an extra leading zero.
--
This was in older versions possible using "--debug 4" but that was
disabled in 2.1 due to a conflict using this values also for
Libgcrypt. Now the values are dumped either with --debug 4 or using
--list-packets along with --verbose.
Because OpenPGP only uses unsigned integers an extra leading zero will
not be printed anymore.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/sign.c (sign_file): Use log_printf instead of stderr.
* g10/tdbdump.c (export_ownertrust): Use estream fucntions.
(import_ownertrust): Ditto.
* g10/tdbio.c (tdbio_dump_record): Ditto. Change arg to estream_t.
--
Reported-by: Guilhem Moulin <guilhem@fripost.org>
Needed for unattended key edits with --status-fd, because since 2.1
status prompts are preceded by es_fflush (in cpr.c:do_get_from_fd)
not fflush(3), so the standard output may not be flushed before each
prompt. (Which breaks scripts using select(2) to multiplex between
the standard and status outputs.)
His patch only affected print_and_check_one_sig_colon() but there are
many more places where stdio and estream are mixed. This patch now
replaces most of them in g10/. At some places stdio is still used,
but that is local to a function and should not have side effects.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/host2net.h (buf16_to_ulong, buf16_to_uint): New.
(buf16_to_ushort, buf16_to_u16): New.
(buf32_to_size_t, buf32_to_ulong, buf32_to_uint, buf32_to_u32): New.
--
Commit 91b826a38880fd8a989318585eb502582636ddd8 was not enough to
avoid all sign extension on shift problems. Hanno Böck found a case
with an invalid read due to this problem. To fix that once and for
all almost all uses of "<< 24" and "<< 8" are changed by this patch to
use an inline function from host2net.h.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/gpg.h (g10_errstr): Remove macro and change all occurrences by
gpg_strerror.
(G10ERR_): Remove all macros and change all occurrences by their
GPG_ERR_ counterparts.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/misc.c (pct_expando): Reorder conditions for clarity.
* g10/sign.c (write_signature_packets): Fix notation data creation.
--
Also re-added the check for signature version > 3.
Reported-by: MFPA
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/gpg.c (main): Pass option names to obsolete_option without
double dash.
* g10/misc.c (obsolete_option, obsolete_scdaemon_option): Print double
dash only for command line options.
* g10/gpg.c: Add config options that should belong in scdaemon.conf
* g10/main.h, g10/misc.c (obsolete_scdaemon_option): New.
--
In gpg2, the following options are only relevant for scdaemon:
reader-port
ctapi-driver
pcsc-driver
disable-ccid
but in gpg1, they are options for gpg itself.
Some users of gpg1 might have these options in their
~/.gnupg/gpg.conf, which causes gpg2 to fail hard if it reads that
config file.
gpg2 should not fail hard, though giving a warning (and suggesting a
move to scdaemon.conf) seems OK.
This patch does *not* reintroduce any documentation for these options
in gpg.texi, even to indicate that they are "dummy" options, since
scdaemon.texi contains the appropriate documentation.
Debian-bug-id: 762844
- Program names factored out from obsolete_scdaemon_option to make
reuse without new translations easier. -wk
* g10/sig-check.c (do_check): Move some code to ...
* g10/misc.c (print_md5_rejected_note): new function.
* g10/mainproc.c (proc_tree, proc_plaintext): Enable MD5 workaround
only if option --allow-weak-digest-algos is used.
* g10/gpg.c (oRFC1991, oPGP2): Remove
(opts): Remove --pgp2 and --rfc1991.
* g10/options.h (CO_PGP2, CO_RFC1991): Remove. Remove all users.
(RFC2440, PGP2): Remove. Remove all code only enabled by these
conditions.
* tests/openpgp/clearsig.test: Remove --rfc1991 test.
--
The use of PGP 2.c is considered insecure for quite some time
now (e.g. due to the use of MD5). Thus we remove all support for
_creating_ PGP 2 compatible messages.
* g10/gpg.c (aQuickKeygen): New.
* g10/misc.c (is_valid_user_id): New stub.
* g10/keygen.c (quickgen_set_para): New.
(quick_generate_keypair): New.
--
Note that the validation of the specified user id has not yet been
implemented.
* g10/keyid.c (hash_public_key): Take care of NULL keys.
* g10/misc.c (pubkey_nbits): Ditto.
--
This problem was mainly due to our ECC code while checking for opaque
MPIs with the curve name.
* g10/photoid.c (show_photos): Set namehash.
* g10/misc.c (pct_expando): Add "%U" expando.
--
This makes is possible to extract all photos ids from a key to
different files.
