Commit Graph

2119 Commits

Author SHA1 Message Date
Werner Koch ab5d7142a7
gpg: Fixed i18n markup of some strings.
* g10/tofu.c: Removed some translation markups which either make no
sense or are not possble.
--

Error message which are not helpful for the user but indicate a
problem of the installation or the code do not need a translation.
The translator may not understand them correctly and the use support
can't immediately locate the problem because it needs to be reverse
translated.

There is also one case where certain grammar constructs are
assumed (concatenating parts of a sentence at runtime).  Better do not
translate that than getting weird sentences.
2019-05-27 12:52:58 +02:00
Werner Koch d9b31d3a20
gpg: Allow deletion of subkeys with --delete-[secret-]key.
* common/userids.c (classify_user_id): Do not set the EXACT flag in
the default case.
* g10/export.c (exact_subkey_match_p): Make static,
* g10/delkey.c (do_delete_key): Implement subkey only deleting.
--

GnuPG-bug-id: 4457
2019-05-27 11:41:35 +02:00
Werner Koch 30f44957cc
gpg: Do not bail on an invalid packet in the local keyring.
* g10/keydb.c (parse_keyblock_image): Treat invalid packet special.
--

This is in particular useful to run --list-keys on a keyring with
corrupted packets.  The extra flush is to keep the diagnostic close to
the regular --list-key output.

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

This is a backport from master with support for the unsupported v5 key
handling.
2019-05-21 17:40:41 +02:00
Werner Koch d32963eeb3
gpg: Do not allow creation of user ids larger than our parser allows.
* g10/parse-packet.c: Move max packet lengths constants to ...
* g10/packet.h: ... here.
* g10/build-packet.c (do_user_id): Return an error if too data is too
large.
* g10/keygen.c (write_uid): Return an error for too large data.
--

This can lead to keyring corruption becuase we expect that our parser
is abale to parse packts created by us.  Test case is

  gpg --batch --passphrase 'abc' -v  \
      --quick-gen-key $(yes 'a'| head -4000|tr -d '\n')

GnuPG-bug-id: 4532
Signed-off-by: Werner Koch <wk@gnupg.org>
2019-05-21 16:28:11 +02:00
Werner Koch 5c46c5f745
gpg: Do not delete any keys if --dry-run is passed.
* g10/delkey.c (do_delete_key): Don't delete the keyblock on dry runs.
Do not clear the ownertrust.  Do not let the agent delete the key.
--

Co-authored-by: Matheus Afonso Martins Moreira
Signed-off-by: Werner Koch <wk@gnupg.org>
2019-05-20 12:52:22 +02:00
Werner Koch 1702179d91
gpg: Fix using --decrypt along with --use-embedded-filename.
* g10/options.h (opt): Add flags.dummy_outfile.
* g10/decrypt.c (decrypt_message): Set this global flag instead of the
fucntion local flag.
* g10/plaintext.c (get_output_file): Ignore opt.output if that was
used as a dummy option aslong with --use-embedded-filename.
--

The problem here was that an explicit specified --decrypt, as
meanwhile suggested, did not work with that dangerous
--use-embedded-filename.  In contrast it worked when gpg decrypted as
a side-effect of parsing the data.

GnuPG-bug-id: 4500
Signed-off-by: Werner Koch <wk@gnupg.org>
2019-05-17 13:42:42 +02:00
Werner Koch cd5f040a53
gpg: Improve the photo image viewer selection.
* g10/exec.c (w32_system): Add "!ShellExecute" special.
* g10/photoid.c (get_default_photo_command): Use the new ShellExecute
under Windows and fallbac to 'display' and 'xdg-open' in the Unix
case.
(show_photos): Flush stdout so that the output is shown before the
image pops up.
--

For Unix this basically syncs the code with what we have in gpg 1.4.
Note that xdg-open may not be used when running as root which we
support here.

For Windows we now use ShellExecute as this seems to be preferred over
"cmd /c start"; however this does not solve the actual problem we had
in the bug report.  To solve that problem we resort to a wait
parameter which defaults to 400ms.  This works on my Windows-10
virtualized test box.  If we can figure out which simple viewers are
commonly installed on Windows we should enhance this patch to test for
them.

GnuPG-bug-id: 4334
Signed-off-by: Werner Koch <wk@gnupg.org>
2019-05-17 12:46:16 +02:00
Daniel Kahn Gillmor 9c704d9d46
gpg: enable OpenPGP export of cleartext keys with comments
* g10/export.c (cleartext_secret_key_to_openpgp): ignore trailing
sublists in private-key S-expression.

--

When gpg-agent learns about a private key from its ssh-agent
interface, it stores its S-expression with the comment attached.  The
export mechanism for OpenPGP keys already in cleartext was too brittle
because it would choke on these comments.  This change lets it ignore
any additional trailing sublists.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
Gnupg-Bug-Id: 4490
2019-05-15 09:03:13 +02:00
Werner Koch 8d645f1d1f
gpg: Do not print a hint to use the deprecated --keyserver option.
* g10/keyserver.c (keyserver_search): Remove a specialized error
message.
--

Dirmngr comes with a default keyserver and the suggestion to use
gpg --keyserver
is not good because that option is deprecated.  An error message
"No keyserver available" is sufficient.

GnuPG-bug-id: 4512
Signed-off-by: Werner Koch <wk@gnupg.org>
2019-05-14 07:57:07 +02:00
NIIBE Yutaka 5b22d2c400 g10: Fix possible null dereference.
* g10/armor.c (armor_filter): Access ->d in the internal loop.

--

Cherry-picked master commit of:
	802a2aa300

GnuPG-bug-id: 4494
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-05-14 11:24:35 +09:00
Werner Koch c1dc7a8329
gpg: Change update_keysig_packet to replace SHA-1 by SHA-256.
* g10/sign.c (update_keysig_packet): Convert digest algo when needed.
--

Several gpg commands try to keep most properties of a key signature
when updating (i.e. creating a new version of a key signature).  This
included the use of the current hash-algorithm.  This patch changes
this so that SHA-1 or RMD160 are replaced by SHA-256 if
possible (i.e. for RSA signatures).  Affected commands are for example
--quick-set-expire and --quick-set-primary-uid.

GnuPG-bug-id: 4508
Signed-off-by: Werner Koch <wk@gnupg.org>
2019-05-13 19:29:34 +02:00
Werner Koch 05204b7249
gpg: Use just the addrspec from the Signer's UID.
* g10/parse-packet.c (parse_signature): Take only the addrspec from a
Signer's UID subpacket.
--

This is to address a problem in the currentr OpenKeychain which put
the entire UID into the subpacket.  For example our Tofu code can only
use the addrspec and not the entire UID.

Reported-by: Wiktor Kwapisiewicz <wiktor@metacode.biz>
Signed-off-by: Werner Koch <wk@gnupg.org>
2019-05-03 15:57:10 +02:00
Andre Heinecke 35899dc290 g10: Fix double free when locating by mbox
* g10/getkey.c (get_best_pubkey_byname): Set new.uid always
to NULL after use.

--
pubkey_cmp is not guranteed to set new.uid.
So if the diff < 0 case is reached best is set to new.

If then diff > 0 is reached without modifying new.uid
e.g. if the key has no matching mboxes. new.uid is
free'd even though the uid is still referenced in
best.

GnuPG-Bug-Id: T4462
(cherry picked from commit e57954ed27)
2019-04-18 14:26:42 +02:00
Werner Koch dc4c7f65e3
gpg: Accept also armored data from the WKD.
* g10/keyserver.c (keyserver_import_wkd): Clear NO_ARMOR.
--

We may even adjust the specs to allow that.  It should not be a
problem for any OpenPGP implementation because armored keys are very
common and de-armoring code is de-facto a mandatory feature.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-04-11 10:05:08 +02:00
Werner Koch e9fcb0361a
gpg: Set a limit of 5 to the number of keys imported from the WKD.
* g10/import.c (import): Limit the number of considered keys to 5.
(import_one): Return the first fingerprint in case of WKD.
--

The Web Key Directory should carry only one key.  However, some
providers like to put old or expired keys also into the WKD.  I don't
thunk that this is a good idea but I heard claims that this is needed
for them to migrate existing key data bases.

This patch puts a limit on 5 on it (we had none right now) and also
fixes the issue that gpg could not work immediately with the requested
key because the code uses the fingerprint of the key to use the
imported key.  Now the first key is used.  On a second try (w/o
accessing the WKD) the regular key selection mechanism would be in
effect.  I think this is the most conservative approach.  Let's see
whether it helps.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-04-11 10:05:05 +02:00
NIIBE Yutaka 38c2a9a644
g10: Fix symmetric cipher algo constant for ECDH.
* g10/ecdh.c (kek_params_table): Use CIPHER_ALGO_AES192 for
ECC strength 384, according to RFC-6637.

--

Reported-by: Trevor Bentley
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit af3efd149f)
2019-03-27 12:29:45 +01:00
Trevor Bentley 2f455d18ab gpg: Don't use EdDSA algo ID for ECDSA curves.
* g10/keygen.c (ask_curve): Change algo ID to ECDSA if it changed from
an EdDSA curve.

--

(cherry picked from commit 4324560b2c)

This change matters when it is called from ask_card_keyattr.

Some-comments-by: NIIBE Yutaka <gniibe@fsij.org>
2019-03-27 11:10:30 +09:00
Werner Koch de70a2f377
gpg: Do not bail out on v5 keys in the local keyring.
* g10/parse-packet.c (parse_key): Return GPG_ERR_UNKNOWN_VERSION
instead of invalid packet.
* g10/keydb.c (parse_keyblock_image): Do not map the unknown version
error to invalid keyring.
(keydb_search): Skip unknown version errors simlar to legacy keys.
* g10/keyring.c (keyring_rebuild_cache): Skip keys with unknown
versions.
* g10/import.c (read_block): Handle unknown version.
--

When using gpg 2.3 the local keyring may contain v5 keys.  This patch
allows the use of such a keyring also with a 2.2 version which does
not support v5 keys.  We will probably need some more tweaking here
but this covers the most common cases of listing keys and also
importing v5 keys.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-03-18 14:10:16 +01:00
Werner Koch 0e73214dd2
gpg: Allow import of PGP desktop exported secret keys.
* g10/import.c (NODE_TRANSFER_SECKEY): New.
(import): Add attic kludge.
(transfer_secret_keys): Add arg only_marked.
(resync_sec_with_pub_keyblock): Return removed seckeys via new arg
r_removedsecs.
(import_secret_one): New arg r_secattic.  Change to take ownership of
arg keyblock.  Implement extra secret key import logic.  Factor some
code out to ...
(do_transfer): New.
(import_matching_seckeys): New.
--

The PGP desktops exported secret keys are really stupid.  And they
even a have kind of exception in rfc4880 which does not rule that
out (section 11.2):

  [...]  Implementations SHOULD include self-signatures on any user
  IDs and subkeys, as this allows for a complete public key to be
  automatically extracted from the transferable secret key.
  Implementations MAY choose to omit the self-signatures, especially
  if a transferable public key accompanies the transferable secret
  key.

Now if they would only put the public key before the secret
key. Anyway we now have a workaround for that ugliness.

GnuPG-bug-id: 4392
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 5205512fc0)
2019-03-18 13:16:51 +01:00
Werner Koch 43b23aa82b
gpg: Avoid importing secret keys if the keyblock is not valid.
* g10/keydb.h (struct kbnode_struct): Replace unused field RECNO by
new field TAG.
* g10/kbnode.c (alloc_node): Change accordingly.
* g10/import.c (import_one): Add arg r_valid.
(sec_to_pub_keyblock): Set tags.
(resync_sec_with_pub_keyblock): New.
(import_secret_one): Change return code to gpg_error_t.   Return an
error code if sec_to_pub_keyblock failed.  Resync secret keyblock.
--

When importing an invalid secret key ring for example without key
binding signatures or no UIDs, gpg used to let gpg-agent store the
secret keys anyway.  This is clearly a bug because the diagnostics
before claimed that for example the subkeys have been skipped.
Importing the secret key parameters then anyway is surprising in
particular because a gpg -k does not show the key.  After importing
the public key the secret keys suddenly showed up.

This changes the behaviour of
GnuPG-bug-id: 4392
to me more consistent but is not a solution to the actual bug.

Caution: The ecc.scm test now fails because two of the sample keys
         don't have binding signatures.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit f799e9728b)
2019-03-18 13:16:35 +01:00
Werner Koch db2d75f1ff
gpg: During secret key import print "sec" instead of "pub".
* g10/keyedit.c (show_basic_key_info): New arg 'print_sec'.  Remove
useless code for "sub" and "ssb".
* g10/import.c (import_one): Pass FROM_SK to show_basic_key_info.  Do
not print the first  keyinfo in FROM_SK mode.
printing.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit f64477db86)
2019-03-18 13:13:14 +01:00
Werner Koch 184fbf014a
gpg: Simplify an interactive import status line.
* g10/cpr.c (write_status_printf): Escape CR and LF.
* g10/import.c (print_import_check): Simplify by using
write_status_printf and hexfingerprint.

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

Fixed one conlict in a comment.
2019-03-18 13:12:13 +01:00
Werner Koch d2a7f9078a
gpg: Make invalid primary key algos obvious in key listings.
* g10/keylist.c (print_key_line): Print a warning for invalid algos.
--

Non-OpenPGP compliant keys now show a warning flag on the sec or pub
line like in:

  gpg: can't encode a 256 bit MD into a 88 bits frame, algo=8
  sec   cv25519 2019-01-30 [INVALID_ALGO]
        4239F3D606A19258E7A88C3F9A3F4F909C5034C5
  uid           [ultimate] ffffff

Instead of showing the usage flags "[CE]".  Without this patch only
the error message is printed and the reason for it was not immediately
obvious (cv25519 is encryption only but we always consider the primary
key as having the "C" flag).

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit db87132b10)
2019-03-07 10:54:39 +01:00
Neal H. Walfield 14e5435afb gpg: Fix comparison.
* g10/gpgcompose.c (literal_name): Complain if passed zero arguments,
not one or fewer.

--

Cherry-picked master commit of:
	1ed21eee79

Signed-off-by: Neal H. Walfield <neal@walfield.org>
2019-02-19 15:53:12 +09:00
Werner Koch 7922e2dd1c
Release 2.2.13 2019-02-12 16:30:31 +01:00
Werner Koch 14ea581a1c
gpg: Emit an ERROR status if no key was found with --list-keys.
* g10/keylist.c (list_one): Emit status line.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 140fda8c61)
2019-02-11 10:40:32 +01:00
Werner Koch 31d2a1eeca
gpg: Allow generating Ed25519 key from an existing key.
* 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 346a98fabe)
2019-01-30 11:29:06 +01:00
Werner Koch b78f293cf0
common: Provide some convenient OpenPGP related constants.
* common/openpgpdefs.h (OPENPGP_MAX_NPKEY): New.
(OPENPGP_MAX_NSKEY): New.
(OPENPGP_MAX_NSIG): New.
(OPENPGP_MAX_NENC): New.
* g10/packet.h: Define PUBKEY_MAX using the new consts.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit f382984966)
2019-01-29 20:18:52 +01:00
Werner Koch f5d3b982e4
gpg: Stop early when trying to create a primary Elgamal key.
* 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 f97dc55ff1)
2019-01-22 10:08:06 +01:00
Werner Koch f7ff25edad
gpg: In search-keys return "Not found" instead of "No Data".
* g10/keyserver.c (keyserver_search): Check for NO_DATA.
--

GnuPG-bug-id: 3830
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit e7252ae57f)
2018-12-11 12:31:36 +01:00
NIIBE Yutaka d4bc805152 scd: Make "learn" report about KDF data object.
* scd/app-openpgp.c (do_learn_status): Report KDF attr.
* g10/card-util.c (current_card_status): Output KDF for with_colons.

--

Backport of master commit: 05d163aebc
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-12-06 17:11:55 +09:00
NIIBE Yutaka 751ff784e5 card: Display if KDF is enabled or not.
* g10/call-agent.h (kdf_do_enabled): New field.
* g10/call-agent.c (learn_status_cb): Set kdf_do_enabled if available.
* g10/card-util.c (current_card_status): Inform the availability.

--

Cherry pick of master commit: a5542a4a70
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-12-06 17:05:03 +09:00
NIIBE Yutaka 293001e2c6 g10: Fix memory leak for --card-status.
* g10/card-util.c (card_status): Release memory of serial number.

--

Cherry pick of master commit: fe8b633954
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-12-06 17:03:30 +09:00
NIIBE Yutaka c5aba093b8
g10: Fix print_pubkey_info new line output.
* g10/keylist.c (print_pubkey_info): Reverse the condition.

--

This mistakes were introduced when replacing by estream.

It resulted 'gpg --card-status' from a process with no controlling
terminal fails.

Fixes-commit: fb2ba98963
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit e154fba30b)
2018-12-05 08:56:13 +01:00
Werner Koch 9b53845168
gpg: New list-option "show-only-fpr-mbox".
* g10/gpg.c (parse_list_options): Add option "show-only-fpr-mbox".
* g10/options.h (LIST_SHOW_ONLY_FPR_MBOX): New.
* g10/keylist.c (list_keyblock_simple): New.
(list_keyblock): Call it.
(list_all): Do not print the keyring name in LIST_SHOW_ONLY_FPR_MBOX
mode.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 0e8bf20479)

* g10/keylist.c (list_keyblock_simple): Remove optional arg from
mailbox_from_userid
2018-12-05 08:48:14 +01:00
Jussi Kivilinna 6008410e51
g10/mainproc: disable hash contexts when --skip-verify is used
* g10/mainproc.c (proc_plaintext): Do not enable hash contexts when
opt.skip_verify is set.
--

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
(cherry picked from commit 73e74de0e3)
2018-12-05 08:26:09 +01:00
Werner Koch edeebe0a6b
gpg: Improve error message about failed keygrip computation.
* g10/keyid.c (keygrip_from_pk): Print the fingerprint on failure.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit cd64af003d)
2018-12-05 08:13:16 +01:00
Werner Koch 6acca0e4d9
doc: Clarify use of clear and nodefault in the AKL.
--

(cherry picked from commit e5c3a6999a)
2018-11-21 09:22:00 +01:00
NIIBE Yutaka 627839ea88 g10: Fix print_keygrip for smartcard.
* g10/card-util.c (print_keygrip): Use tty_fprintf.

--

Reported-by: Joey Pabalinas <joeypabalinas@gmail.com>
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-11-06 15:31:39 +09:00
Werner Koch 82cd7556fd
gpg: Don't take the a TOFU trust model from the trustdb,
* g10/tdbio.c (tdbio_update_version_record): Never store a TOFU model.
(create_version_record): Don't init as TOFU.
(tdbio_db_matches_options): Don't indicate a change in case TOFU is
stored in an old trustdb file.
--

This change allows to switch between a tofu and pgp or tofu+pgp trust
model without an auto rebuild of the trustdb.  This also requires that
the tofu trust model is requested on the command line.  If TOFU will
ever be the default we need to tweak the model detection via TM_AUTO
by also looking into the TOFU data base,

GnuPG-bug-id: 4134
(cherry picked from commit 150a33df41)
2018-11-05 09:17:03 +01:00
Werner Koch e486fb2495
gpg: Add new card vendor
--

(cherry picked from commit 3c2ffd27f3)
2018-11-05 09:15:17 +01:00
Werner Koch ab7a907a18
dirmngr: Emit SOURCE status also on NO_DATA.
* dirmngr/ks-engine-hkp.c (ks_hkp_search): Send SOURCE status also on
NO DATA error.
(ks_hkp_get): Ditto.
* g10/call-dirmngr.c (gpg_dirmngr_ks_search): Print "data source" info
also on error.
(gpg_dirmngr_ks_get): Ditto.
--

If a keyserver does not return any data it can be useful to know which
keyserver out of the pool answered.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit bee65edfbc)
2018-11-05 09:13:39 +01:00
Werner Koch b0d6e26bf3
gpg: Fix extra check for sign usage of a data signature.
* g10/sig-check.c (check_signature_end_simple):
--

Obviously we should not ignore a back signature here.

Fixes-commit: 214b007726
GnuPG-bug-id: 4014
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit b6275f3bda)
2018-10-22 19:27:24 +02:00
NIIBE Yutaka 91f8a9b33a g10: Fix memory leak.
* g10/import.c (read_block): Call free_packet to skip the packet.

--

Cherry-pick of master commit of:
	7c96cc67e1

Reported-by: Philippe Antoine
GnuPG-bug-id: 3916
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-09-07 13:05:17 +09:00
NIIBE Yutaka f0fdee2e24 Fix use of strncpy, which is actually good to use memcpy.
* common/ssh-utils.c (get_fingerprint): Use memcpy.
* g10/build-packet.c (string_to_notation): Use memcpy.

--

Cherry-pick of master commit of:
	625ced6e67

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-09-06 11:46:20 +09:00
Werner Koch a9931b3c05
gpg: Explain error message in key generation with --batch
* g10/keygen.c (generate_keypair): Show more info.
--

GnuPG-bug-id: 3912
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 1bfe766bcf)
2018-08-29 15:14:50 +02:00
Werner Koch 719fc941b6
gpg: Remove unused function get_pubkeys.
* g10/getkey.c (get_pubkeys): Remove.
(pubkey_free): Remove and use code directly ...
(pubkeys_free): ... here.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit ed8fe21e66)
2018-08-29 11:57:44 +02:00
Werner Koch a59a9962f4
gpg: New option --known-notation.
* g10/gpg.c (oKnownNotation): New const.
(opts): Add option --known-notation.
(main): Set option.
* g10/parse-packet.c (known_notations_list): New local var.
(register_known_notation): New.
(can_handle_critical_notation): Rewrite to handle the new feature.
Also print the name of unknown notations in verbose mode.
--

GnuPG-bug-id: 4060
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 3da835713f)
2018-08-29 09:36:44 +02:00
Werner Koch 0709f358cd
gpg: Refresh expired keys originating from the WKD.
* g10/getkey.c (getkey_ctx_s): New field found_via_akl.
(get_pubkey_byname): Set it.
(only_expired_enc_subkeys): New.
(get_best_pubkey_byname): Add support to refresh expired keys from the
WKD.
--

A little drawback of that code is that if the WKD has no update for an
expired key each access of the key will trigger a WKD lookup (unless
cached by the dirmngr).  To avoid this we need to record the last time
we have checked for an update but that would in turn require that we
update the keyring for each check.  We defer this until we have a
better key database which allows for fast updates of meta data.

Testing the code is currently a bit cumbersome because it requires to
update a key in the WKD several times.  Eventually we we need a
network emulation layer to provide sample data for the regression
tests.

GnuPG-bug-id: 2917
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 7f172404bf)
2018-08-28 15:26:36 +02:00
Werner Koch 11a9fe1c58
gpg: Remove unused arg from a function.
* g10/getkey.c (get_best_pubkey_byname): Remove unused arg 'no_akl'.
Change both callers.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit db67ccb759)
2018-08-28 15:26:29 +02:00