Commit Graph

2205 Commits

Author SHA1 Message Date
Werner Koch 60f08969e1
gpg: Set default keysize to rsa3072
* g10/keygen.c (DEFAULT_STD_KEY_PARAM): Change.
(gen_rsa): Set fallback to 3072.
(get_keysize_range): Set default to 3072.
* doc/examples/vsnfd.prf: No more need for default-new-key-algo.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-08-25 13:08:25 +02:00
Werner Koch f148803277
Add a new dist signing key
--

This is

  pub   ed25519 2020-08-24 [SC] [expires: 2030-06-30]
        6DAA 6E64 A76D 2840 571B  4902 5288 97B8 2640 3ADA
  uid                      Werner Koch (dist signing 2020)
2020-08-24 19:48:13 +02:00
Werner Koch 5ac0cf1b81
gpg,gpgsm: Record the creation time of a private key.
* sm/call-agent.c (gpgsm_agent_genkey): Pass --timestamp option.
(gpgsm_agent_import_key): Ditto.
* g10/call-agent.c (agent_genkey): Add arg timestamp and pass it on.
(agent_import_key): Ditto.
* g10/import.c (transfer_secret_keys): Pass the creation date to the
agent.
* g10/keygen.c (common_gen): Ditto.
--

Having the creation time in the private key file makes it a lot easier
to re-create an OpenPGP public keyblock in case it was accidentally
lost.

Signed-off-by: Werner Koch <wk@gnupg.org>
Cherry-picked-from-master: 4031c42bfd
2020-08-23 12:31:18 +02:00
Werner Koch 829bc3bc60
build: New configure option --disable-tests
* configure.ac: Add option --disable-tests.  Print warnings in the
summary.
(DISABLE_TESTS): New am_conditional.
--
GnuPG-bug-id: 4960
2020-08-20 10:58:52 +02:00
Werner Koch f0f8b124f0
gpg: Ignore personal_digest_prefs for ECDSA keys.
* g10/sign.c (hash_for): Simplify hash algo selection for ECDSA.
--

GnuPG-bug-id: 5021
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-08-13 11:37:20 +02:00
Werner Koch fdcf536f70
build: Remove expired key of David Shaw from distsigkey.gpg.
--
2020-08-06 11:27:22 +02:00
Werner Koch 970e431305
gpg: Do not close stdout after --export-ssh-key
* g10/export.c (export_ssh_key): Do not close stdout.
--

stdout should never be closed; this fixes this minor bug.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-07-16 11:38:40 +02:00
NIIBE Yutaka 199309190a gpg: Add regular expression support.
* AUTHORS, COPYING.other: Update.
* Makefile.am (SUBDIRS): Add regexp sub directory.
* configure.ac (DISABLE_REGEX): Remove.
* g10/Makefile.am (needed_libs): Add libregexp.a.
* g10/trustdb.c: Remove DISABLE_REGEX support.
* regexp/LICENSE, regexp/jimregexp.c, regexp/jimregexp.h,
  regexp/utf8.c, regexp/utf8.h: New from Jim Tcl.
* regexp/UnicodeData.txt: New from Unicode.
* regexp/Makefile.am, regexp/parse-unidata.awk: New.
* tests/openpgp/Makefile.am: Remove DISABLE_REGEX support.
* tools/Makefile.am: Remove DISABLE_REGEX support.

--

Backport master commit of:
	ba247a114c

GnuPG-bug-id: 4843
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-07-15 14:16:57 +09:00
Werner Koch 5cb0156504
gpg: Print a note if no args are given to --delete-key
--

It is a bit surprising that nothing happens if no key is specified to
--delete-key et al.  Although this is common Unix behaviour the use
might have expected that it behaves like --export and deletes all
keys.  Sure we don't do the latter, so a short notice will help.

GnuPG-bug-id: 4959
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-07-09 11:25:53 +02:00
Werner Koch b451c4f5ea
Do not use the pinentry's qualitybar
* agent/genkey.c (agent_ask_new_passphrase): No qualitybar.
* g10/call-agent.c (agent_get_passphrase): Ditto.
* sm/call-agent.c (gpgsm_agent_ask_passphrase): Ditto.
--

The concept of a passphrase quality indicator is anyway questionable
because user are smart enough to trick them out and they also tend to
limit the actually used entropy.

Except for the red/green switching (to show whether constraints are
fulfilled) our qualitybar is pretty bad and thus worse than none.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-07-08 16:14:43 +02:00
Werner Koch ae8b88c635
gpg: Use integrated passphrase repeat entry also for -c.
* g10/call-agent.c (agent_get_passphrase): Add arg newsymkey.
* g10/passphrase.c (passphrase_get): Add arg newsymkey.
(passphrase_to_dek): Pass it on.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-07-08 16:13:57 +02:00
Werner Koch 7b6071a45f
gpg: Fix flaw in symmetric algorithm selection in mixed mode.
* g10/encrypt.c (setup_symkey): Use default_cipher_algo function
instead of the fallback s2k_cipher_algo.  Fix error code.
(encrypt_simple): Use setup_symkey.
--

Aside of removing code duplication this patch fixes the flaw that the
S2K cipher algorithm was used when mixing public key and symmetric
encryption or signatures with symmetric encrypion.  The
default_algorithm function should be used here so that the command
line option --cipher-algo and --personal-cipher-preferences have an
effect.

Signed-off-by: Werner Koch <wk@gnupg.org>

Backported-from-master: 6864bba78e
2020-07-07 13:03:01 +02:00
Werner Koch 4a36adaa64
sm: Exclude rsaPSS from de-vs compliance mode.
* common/compliance.h (PK_ALGO_FLAG_RSAPSS): New.
* common/compliance.c (gnupg_pk_is_compliant): Add arg alog_flags and
test rsaPSS.  Adjust all callers.
* common/util.c (pubkey_algo_to_string): New.
(gnupg_pk_is_allowed): Ditto.
* sm/misc.c (gpgsm_ksba_cms_get_sig_val): New wrapper function.
(gpgsm_get_hash_algo_from_sigval): New.
* sm/certcheck.c (gpgsm_check_cms_signature): Change type of sigval
arg.  Add arg pkalgoflags.  Use the PK_ALGO_FLAG_RSAPSS.
* sm/verify.c (gpgsm_verify): Use the new wrapper and new fucntion to
also get the algo flags.  Pass algo flags along.  Change some of the
info output to be more like current master.
--
Signed-off-by: Werner Koch <wk@gnupg.org>

This backport from master
commit 969abcf40c
also includes some changes taken from
commit a759fa963a
(sm: Improve readability of the data verification output.)

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-07-03 17:08:58 +02:00
Werner Koch c6324ee07a
common: Change argument order of log_printhex.
* common/logging.c (log_printhex): Chnage order of args.  Make it
printf alike.  Change all callers.
* configure.ac: Add -Wno-format-zero-length
--

This makes it consistent with modern libgpgrt logging and thus eases
back porting from newer GnuPG versions which use libgpgrt logging.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-05-12 18:51:47 +02:00
Werner Koch 7dbfd92b3e
gpg: Add missing options --no-include-key-block.
* g10/gpg.c (opts): Add it.
--

This got lost when backporting from master.

Fixes-commit: 95b42278ca
GnuPG-bug-id: 4856
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-16 09:13:52 +02:00
Werner Koch 37b116db20
gpg: Make AEAD modes subject to compliance checks.
* g10/decrypt-data.c (decrypt_data): Move aead algo detection up.
--

Note that the AEAD modes are not yet approved for --compliance=de-vs

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-16 08:53:20 +02:00
Werner Koch ab7a0b0702
gpg: Show AEAD preferences
* g10/packet.h (preftype_t): Add PREFTYPE_AEAD.
* g10/keyedit.c (show_prefs): Print AEAD preferences.
* g10/getkey.c (fixup_uidnode): Set AEAD flags.
(merge_selfsigs): Ditto.
--

Although we are not able to create such keys we should be abale to
show them.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-16 08:36:28 +02:00
Werner Koch 1dfe71c62b
gpg: Support decryption of the new AEAD packet
* 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 44be675b75
(gpg: More check for symmetric key encryption.)
is included.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-16 08:25:55 +02:00
Werner Koch 144b95cc9d
gpg: Improve symmetric decryption speed by about 25%
* g10/decrypt-data.c (mdc_decode_filter, decode_filter): Fatcor buffer
filling code out to ...
(fill_buffer): new.
--

This patch includes the master commit
d989373f1a46139ed0fbc4d4a91069b78617ad9
and
5d6c080522

Benchmarking on our usual X220 shows for a 1.3GiB non-compressed
non-armored AES encrypted file (ECDH encrypted but the symmetric
decryption takes the majority of the time, reading from stdin writing
to /dev/null):

|            | before    | after     |
|------------+-----------+-----------|
| real       | 0m15.006s | 0m11.849s |
| user       | 0m14.304s | 0m11.259s |
| sys        | 0m0.640s  | 0m0.537s  |
| throughput | 90 MiB/s  | 115 MiB/s |

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-15 20:51:10 +02:00
Werner Koch 2f39e00b6b
gpg: Reformat parts of decrypt-data.c
* g10/decrypt-data.c (struct decode_filter_context_s): Rename 'defer'
to 'holdback' and 'defer_filled' to 'holdbacklen'.  Increase size of
holdback to allow for future AEAD decryption.  Turn 'partial' and
'eof_seen' into bit fields.
(decrypt_data): Replace write_status_text by write_Status_printf.
Indent parts of the code.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-15 20:00:34 +02:00
Werner Koch 88b456bdf4
gpg: Use the new MANUFACTURER attribute.
* g10/call-agent.h (struct agent_card_info_s): Add manufacturer fields.
* g10/call-agent.c (agent_release_card_info): Release them.
(learn_status_cb): Parse MANUFACTURER attribute.
* g10/card-util.c (get_manufacturer): Remove.
(current_card_status): Use new attribute.
--

This does away with the duplicated OpenPGP vendor tables; they are now
at a better place (app-openpgp.c).

Signed-off-by: Werner Koch <wk@gnupg.org>

Backported from master:
- Removed the gpg-card stuff.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-15 15:18:41 +02:00
NIIBE Yutaka 2f08a4f25d gpg: ECDH: Accept longer padding.
* g10/pubkey-enc.c (get_it): Remove check which mandates shorter
padding.

--

Cherry-picked master commit of:
	fd79cadf7b

According to the section 8 of RFC 6637, the sender MAY use 21 bytes of
padding for AES-128 to provide 40-byte "m".

Reported-by: Metin Savignano
GnuPG-bug-id: 4908
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-04-08 09:39:29 +09:00
Werner Koch fbe3184752
gpg: Print a hint for --batch mode and --delete-secret-key.
* g10/delkey.c: Include shareddefs.h.
(delete_keys): Print a hint.
--

The option --yes has some side-effects so it is not desirable to use it
automatically.  The code in master (2.3) has special treatment of
confirm messages and thus this patch is only for 2.2.

GnuPG-bug-id: 4667
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-18 15:26:43 +01:00
Daniel Kahn Gillmor b6d89d1944
gpg: Update --trusted-key to accept fingerprint as well as long key id.
* g10/trustdb.c (tdb_register_trusted_key): accept fingerprint as well
as long key ID.
* doc/gpg.texi: document that --trusted-key can accept a fingerprint.
--

GnuPG-bug-id: 4855
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>

Fixed uses or return and kept the old string to avoid breaking
translations.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 810ea2cc68)

Remove the test for FPRLEN which we do not have in 2.2

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-18 14:01:17 +01:00
Werner Koch e77f332b01
gpg: Fix key expiration and usage for keys created at the Epoch.
* g10/getkey.c (merge_selfsigs_main): Take a zero key creation time in
account.
--

Keys created at the Epoch have a creation time of 0; when figuring out
the latest signature with properties to apply to a key the usual
comparison A > B does not work if A is always 0.  We now special case
this for the expiration and usage data.

Co-authored-by: gniibe@fsij.org
GnuPG-bug-id: 4670
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 161a098be6)
2020-03-18 12:43:35 +01:00
Werner Koch 95b42278ca
gpg: New option --auto-key-import
* g10/gpg.c (opts): New options --auto-key-import,
--no-auto-key-import, and --no-include-key-block.
(gpgconf_list): Add them.
* g10/options.h (opt): Add field flags.auto_key_import.
* g10/mainproc.c (check_sig_and_print): Use flag to enable that
feature.
* tools/gpgconf-comp.c: Give the new options a Basic config level.
--

Note that the --no variants of the options are intended for easy
disabling at the command line.

GnuPG-bug-id: 4856
Signed-off-by: Werner Koch <wk@gnupg.org>

Backported from master.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-14 20:07:37 +01:00
Werner Koch b42d9f540c
gpg: Make use of the included key block in a signature.
* g10/import.c (read_key_from_file): Rename to ...
(read_key_from_file_or_buffer): this and add new parameters.  Adjust
callers.
(import_included_key_block): New.
* g10/packet.h (PKT_signature): Add field flags.key_block.
* g10/parse-packet.c (parse_signature): Set that flags.
* g10/sig-check.c (check_signature2): Add parm forced_pk and change
all callers.
* g10/mainproc.c (do_check_sig): Ditto.
(check_sig_and_print): Try the included key block if no key is
available.
--

This is is the second part to support the new Key Block subpacket.
The idea is that after having received a signed mail, it is instantly
possible to reply encrypted - without the need for any centralized
infrastructure.

There is one case where this does not work: A signed mail is received
using a specified signer ID (e.g. using gpg --sender option) and the
key block with only that user ID is thus imported.  The next time a
mail is received using the same key but with a different user ID; the
signatures checks out using the key imported the last time.  However,
the new user id is not imported.  Now when trying to reply to that
last mail, no key will be found.  We need to see whether we can update
a key in such a case.

GnuPG-bug-id: 4856
Signed-off-by: Werner Koch <wk@gnupg.org>

Backported from master

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-14 19:53:40 +01:00
Werner Koch d79ebee64e
gpg: New option --include-key-block.
* common/openpgpdefs.h (SIGSUBPKT_KEY_BLOCK): New.
* g10/gpg.c (oIncludeKeyBlock): New.
(opts): New option --include-key-block.
(main): Implement.
* g10/options.h (opt): New flag include_key_block.
* g10/parse-packet.c (dump_sig_subpkt): Support SIGSUBPKT_KEY_BLOCK.
(parse_one_sig_subpkt): Ditto.
(can_handle_critical): Ditto.
* g10/sign.c (mk_sig_subpkt_key_block): New.
(write_signature_packets): Call it for data signatures.
--

This patch adds support for a to be proposed OpenPGP ferature:

  Introduce the Key Block subpacket to align OpenPGP with CMS.

  This new subpacket may be used similar to the CertificateSet of
  CMS (RFC-5652) and thus allows to start encrypted communication
  after having received a signed message.  In practice a stripped down
  version of the key should be including having only the key material
  and the self-signatures which are really useful and shall be used by
  the recipient to reply encrypted.

  #### Key Block

  (1 octet with value 0, N octets of key data)

  This subpacket MAY be used to convey key data along with a signature
  of class 0x00, 0x01, or 0x02.  It MUST contain the key used to create
  the signature; either as the primary key or as a subkey.  The key
  SHOULD contain a primary or subkey capable of encryption and the
  entire key must be a valid OpenPGP key including at least one User ID
  packet and the corresponding self-signatures.

  Implementations MUST ignore this subpacket if the first octet does not
  have a value of zero or if the key data does not represent a valid
  transferable public key.

GnuPG-bug-id: 4856
Signed-off-by: Werner Koch <wk@gnupg.org>

Backported from master.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-14 19:38:09 +01:00
Werner Koch 2baa00ea18
gpg: Add property "fpr" for use by --export-filter.
* g10/export.c (push_export_filters): New.
(pop_export_filters): New.
(export_pubkey_buffer): Add args prefix and prefixlen.  Adjust
callers.
* g10/import.c (impex_filter_getval): Add property "fpr".
* g10/main.h (struct impex_filter_parm_s): Add field hexfpr.
--

The push and pop feature will help us to use the export filter
internally in gpg.  Same for the export_pubkey_buffer change.

GnuPG-bug-id: 4856
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-14 19:15:00 +01:00
Werner Koch 111ba901f5
gpg: Add a new OpenPGP card vendor.
--
2020-03-14 19:14:34 +01:00
Werner Koch 4df1181c07
gpg: Add new card vendor
--
2020-03-03 11:57:19 +01:00
NIIBE Yutaka 1cdd9e57f7 gpg: Fix default-key selection when card is available.
* g10/getkey.c (get_seckey_default_or_card): Handle the case
when card key is not suitable for requested usage.

--

GnuPG-bug-id: 4850
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-02-19 11:02:55 +09:00
Werner Koch 21d9bd8b87
build: Always use EXTERN_UNLESS_MAIN_MODULE pattern.
* common/util.h (EXTERN_UNLESS_MAIN_MODULE): Add the definion only
here but now without the Norcroft-C.  Change all other places where it
gets defined.
* common/iobuf.h (iobuf_debug_mode): Declare unconditionally as
extern.
* common/iobuf.c (iobuf_debug_mode): Define it here.
* agent/gpg-agent.c (INCLUDED_BY_MAIN_MODULE): Define here and also in
all main modules of all other programs.

* g10/main.h: Put util.h before the local header files.
--

This change is required for use with gcc/ld's LTO feature which does
not allow common blocks.  Further gcc 10 will make -fno-common the
default and thus this chnage is always needed.  What a pitty.

Co-authored-by: Tomáš Mráz
GnuPG-bug-id: 4831
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-02-10 16:37:34 +01:00
Werner Koch 49151255f3
gpg: Make really sure that --verify-files always returns an error.
* g10/verify.c (verify_files): Track the first error code.
--

It seems to be possible to play tricks with packet structures so that
log_error is not used for a bad input data.  By actually checking the
return code and let the main driver in gpg call log_error, we can fix
this case.

Note that using gpg --verify-files and relying solely on gpg's return
code is at best a questionable strategy.  It is for example impossible
to tell which data has been signed.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 5681b8eaa4)
2020-02-10 15:33:53 +01:00
Werner Koch c1d716cd65
card: Add new OpenPGP card vendor.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-01-28 15:50:08 +01:00
Werner Koch 9f386cca64
card: Add new OpenPGP card vendor
--

Backport from master.
2020-01-21 11:20:12 +01:00
NIIBE Yutaka a7840777e4 gpg: default-key: Simply don't limit by capability.
* g10/getkey.c (parse_def_secret_key): Remove the check.

--

Backport from master commit:
	1aa2a0a46d

GnuPG-bug-id: 4810
Fixes-commit: e573e6188d
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-01-16 10:31:23 +09:00
Werner Koch 31f1fc3131
Update wk's signing key
--
The expiration time of that smartcard based key has been prolonged
by 2 years.
2020-01-01 19:06:30 +01:00
Werner Koch def1ceccf0
gpg: Fix output of --with-secret if a pattern is given.
* g10/keylist.c (list_one): Probe for a secret key in --with-secret
mode.
--

In contrast to list_all(), list_one() did not tests for a secret key
and took MARK_TRUSTED verbatim as an indication for "secret key
available".

GnuPG-bug: 4061
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 59d49e4a0a)
2019-12-23 12:44:00 +01:00
Werner Koch 03983711b3
po: Make g10/call-dirmngr.c translatable.
* po/POTFILES.in: Add g10/call-dirmngr.c
* g10/call-dirmngr.c (create_context): Change an i18n sting for easier
reuse.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-12-07 11:56:13 +01:00
Werner Koch 438a1ec297
dirmngr: Tell gpg about WKD lookups resulting from a cache.
* dirmngr/server.c (proc_wkd_get): Print new NOTE status
"wkd_cached_result".
* g10/call-dirmngr.c (ks_status_cb): Detect this and print a not ein
verbose mode.
--

This little patch is helpful to see why a WKD change still does not
work after it has been updated on the server.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-12-07 11:41:51 +01:00
Werner Koch 78bb81e9de
gpg: Use AKL for angle bracketed mail address with -r.
* g10/getkey.c (get_pubkey_byname): Extend is_mbox checking.
(get_best_pubkey_byname): Ditto.
--

With this patch it is now possible to use

  gpg -e -r '<foo@example.org>'

and auto key locate will find the key.  Without that a plain mail
address; i.e.

  gpg -e -r 'foo@example.org'

was required.

GnuPG-bug-id: 4726
Signed-off-by: Werner Koch <wk@gnupg.org>
2019-12-04 16:18:36 +01:00
Werner Koch 9ac182f376
gpg: Fix double free with anonymous recipients.
* g10/pubkey-enc.c (get_session_key): Do not release SK.
--

Bug is in 2.2.18 only.

The semantics of the enum_secret_keys function changed in master.
When back porting this for 2.2.18 I missed this change and thus we ran
into a double free.  The patches fixes the regression but is it clumsy.
We need to change the enum_secret_keys interface to avoid such a
surprising behaviour; this needs to be done in master first.

Regression-due-to: 9a317557c5
GnuPG-bug-id: 4762
Signed-off-by: Werner Koch <wk@gnupg.org>
2019-11-29 17:44:12 +01:00
Werner Koch 3efc94f1eb
dirmngr,gpg: Better diagnostic in case of bad TLS certificates.
* doc/DETAILS: Specify new status code "NOTE".
* dirmngr/ks-engine-http.c (ks_http_fetch): Print a NOTE status for a
bad TLS certificate.
* g10/call-dirmngr.c (ks_status_cb): Detect this status.
--

For example a

  gpg -v --locate-external-keys dd9jn@posteo.net

now yields

  gpg: Note: server uses an invalid certificate
  gpg: (further info: bad cert for 'posteo.net': \
                      Hostname does not match the certificate)
  gpg: error retrieving 'dd9jn@posteo.net' via WKD: Wrong name
  gpg: error reading key: Wrong name

(without -v the "further info" line is not shown).  Note that even
after years Posteo is not able to provide a valid certificate for
their .net addresses.  Anyway, this help to show the feature.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-11-18 18:44:36 +01:00
Werner Koch 4dd5099125
dirmngr: Forward http redirect warnings to gpg.
* dirmngr/http.c: Include dirmngr-status.h
(http_prepare_redirect): Emit WARNING status lines for redirection
problems.
* dirmngr/http.h: Include fwddecl.h.
(struct http_redir_info_s): Add field ctrl.
* dirmngr/ks-engine-hkp.c (send_request): Set it.
* dirmngr/ks-engine-http.c (ks_http_fetch): Set it.
* g10/call-dirmngr.c (ks_status_cb): Detect the two new warnings.
--

This should make it easier to diagnose problems with bad WKD servers.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-11-18 18:44:33 +01:00
Werner Koch 754a03f5a2
gpg: Forbid the creation of SHA-1 third-party key signatures.
* g10/sign.c (SIGNHINT_KEYSIG, SIGNHINT_SELFSIG): New.
(do_sign): Add arg signhints and inhibit SHA-1 signatures.  Change
callers to pass 0.
(complete_sig): Add arg signhints and pass on.
(make_keysig_packet, update_keysig_packet): Set signhints.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit dd18be979e)
2019-11-11 12:39:22 +01:00
Werner Koch 3b1fcf6523
gpg: Add option --allow-weak-key-signatures.
* g10/gpg.c (oAllowWeakKeySignatures): New.
(opts): Add --allow-weak-key-signatures.
(main): Set it.
* g10/options.h (struct opt): Add flags.allow_weak_key_signatures.
* g10/misc.c (print_sha1_keysig_rejected_note): New.
* g10/sig-check.c (check_signature_over_key_or_uid): Print note and
act on new option.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit e624c41dba)
2019-11-11 12:29:18 +01:00
Werner Koch 2975868ede
gpg: Fix a potential loss of key sigs during import with self-sigs-only.
* g10/import.c (import_one_real): Don't do the final clean in the
merge case.
--

This fixes a regression introduced with self-sigs-only.

GnuPG-bug-id: 4628
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 6701a38f8e)
2019-11-07 15:13:13 +01:00
Werner Koch d8052db74a
gpg: Also delete key-binding signature when deleting a subkey.
* g10/delkey.c (do_delete_key): Simplify and correct subkey deletion.
--

GnuPG-bug-id: 4665, 4457
Fixes-commit: d9b31d3a20
Signed-off-by: Werner Koch <wk@gnupg.org>
2019-10-15 14:37:54 +02:00
NIIBE Yutaka 2906636b92 Revert "gpg: The first key should be in candidates."
This reverts commit 66eb953f43.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-10-15 20:54:10 +09:00