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2149 Commits

Author SHA1 Message Date
Werner Koch
df6cff8233
gpg: Allow --locate-external-key even with --no-auto-key-locate.
* g10/getkey.c (akl_empty_or_only_local): New.
* g10/gpg.c (DEFAULT_AKL_LIST): New.
(main): Use it here.
(main) <aLocateExtKeys>: Set default AKL if none is set.
--

This better matches the expectations of the user.  The used list in
this case is the default list ("local,wkd") with local ignored by the
command anyway.

GnuPG-bug-id: 4662
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit d058d80ed0d5edeff6d85108054b1dfd45ddad7d)
2019-08-23 13:22:54 +02:00
Werner Koch
589f118713
gpg: Silence some warning messages during -Kv.
* g10/options.h (glo_ctrl): Add flag silence_parse_warnings.
* g10/keylist.c (list_all): Set that during secret key listsings.
* g10/parse-packet.c (unknown_pubkey_warning): If new flag is set do
 not print info message normally emitted inh verbose mode.
(can_handle_critical_notation, enum_sig_subpkt): Ditto.
(parse_signature, parse_key, parse_attribute_subpkts): Ditto.
--

Those messages are annoying because they might be emitted due to
parsing public keys which are latter not shows because the secret part
is missing.  No functional regressions are expected because --verbose
should not change anything.

Note that this suppression is only done if no arguments are given to
the command; that is if a listing of the entire keyring is requested.
Thus to see the earnings anyway, a listing of a single or group of
keys can be requested.

GnuPG-bug-id: 4627
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit d7aca1bef68589134b36395901b92496a7a37392)
2019-08-23 12:53:58 +02:00
Werner Koch
215858aba3
gpg: Do not show an informational diagnostics with quiet.
* g10/trustdb.c (verify_own_keys): Silence informational diagnostic.
--

This silences this notes with --quiet
  gpg: key EE65E8C75D41FD1D marked as ultimately trusted

GnuPG-bug-id: 4634
Signed-off-by: Werner Koch <wk@gnupg.org>
2019-08-23 11:47:12 +02:00
Werner Koch
f812e09904
gpg: Use modern spelling for the female salutation.
--
GnuPG-bug-id: 4682

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-08-22 10:25:59 +02:00
Werner Koch
a8aacaf204
sm: Show the usage flags when generating a key from a card.
* g10/call-agent.c (scd_keypairinfo_status_cb): Also store the usage
flags.
* sm/call-agent.c (scd_keypairinfo_status_cb): Ditto.
* sm/certreqgen-ui.c (gpgsm_gencertreq_tty): Print the usage flags.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 9ed1aa56c4bbf44e00b731d6807ada9e95c91bd7)
2019-08-21 13:59:17 +02:00
Werner Koch
9a317557c5
gpg: Allow decryption using non-OpenPGP cards.
* g10/call-agent.c (struct getattr_one_parm_s): New.
(getattr_one_status_cb): New.
(agent_scd_getattr_one): New.
* g10/pubkey-enc.c (get_it): Allow the standard leading zero byte from
pkcs#1.
* g10/getkey.c (enum_secret_keys): Move to...
* g10/skclist.c (enum_secret_keys): here and handle non-OpenPGP cards.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit ec6a6779236a89d4784a6bb7de0def9cc0f9e8a4)

This commit also incorporates "g10: Move enum_secret_keys to
skclist.c."  Which was started with
commit 03a8de7def4195b9accde47c1dcb84279361936d
on master about a year ago.

Signed-off-by: Werner Koch <wk@gnupg.org>
GnuPG-bug-id: 4681
2019-08-21 13:58:34 +02:00
Werner Koch
23784f8bf0
scd: New standard attributes $ENCRKEYID and $SIGNKEYID.
* g10/call-agent.c (agent_scd_keypairinfo): Use --keypairinfo.
* sm/call-agent.c (gpgsm_agent_scd_keypairinfo): Ditto.
* scd/app-openpgp.c (do_getattr): Add attributes "$ENCRKEYID" and
"$SIGNKEYID".
* scd/app-nks.c (do_getattr): Add attributes too.
--

We already have $AUTHKEYID to locate the keyref of the key to be used
with ssh.  It will also be useful to have default keyref for
encryption and signing.  For example, this will allow us to replace
the use of "OPENPGP.2" by a app type specific keyref.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 2b1135cf920cf3d863813d60f032d476dcccfb58)

Removed changes for the non-existing app-piv.c.
Added support for NKS.
2019-08-21 11:00:18 +02:00
Werner Koch
fbed618a36
gpg: Allow direct key generation from card with --full-gen-key.
* g10/call-agent.c (agent_scd_readkey): New.
* g10/keygen.c (ask_key_flags): Factor code out to ..
(ask_key_flags_with_mask): new.
(ask_algo): New mode 14.
--

Note that this new menu 14 is always displayed.  The usage flags can
be changed only in --expert mode, though.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit a480182f9d7ec316648cb64248f7a0cc8f681bc3)

Removed stuff from gpg-card which does not exists in 2.2.  No tests
yet done for this backport.
2019-08-21 10:37:01 +02:00
Werner Koch
c185f6dfbd
gpg: New option --use-only-openpgp-card
* g10/gpg.c (opts): Add option.
(main): Set flag.
* g10/options.h: Add flags.use_only_openpgp_card.
* g10/call-agent.c (start_agent): Implement option.
--

With the previous patch we switch to autoselect an application
instead of requesting an openpgp card.  This option allows to revert
this in case of use use cases which expected the former behaviour.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-08-21 10:19:16 +02:00
Werner Koch
fe5c8de862
gpg: Prepare card code to allow other than OpenPGP cards.
* g10/call-agent.c (start_agent): Use card app auto selection.
* g10/card-util.c (current_card_status): Print the Application type.
(card_status): Put empty line between card listings.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit e47524c34a2a9f53c2507f67a0b41b460cee78b7)
2019-08-21 10:08:13 +02:00
Werner Koch
768cb6402f
gpg: New card function agent_scd_keypairinfo.
* g10/call-agent.c (scd_keypairinfo_status_cb)
(agent_scd_keypairinfo): New.  Taken from gpgsm.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 0fad61de159acf39e38a04f28f162f0beb0e77d6)
2019-08-21 10:06:47 +02:00
Werner Koch
c2f87a936a
gpg: Remove two unused card related functions.
* g10/call-agent.c (inq_writekey_parms): Remove.
(agent_scd_writekey): Remove.
(agent_clear_pin_cache): Remove this stub.

(cherry picked from commit 334b16b868e771b983263ed20c200869e7e51198)
2019-08-21 10:06:07 +02:00
Werner Koch
d410b5f930
gpg: Repurpose the ISO defined DO "sex" to "salutation".
* g10/card-util.c (current_card_status): String changes.
(change_sex): Description change.
(cmds): Add "salutation"; keep "sex" as an alias.
--

Note that we can't change the used values or tags but at least the UI
should show reflect the real purpose of the field.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 166f3f9ec40888e10cb0c51017944bfc57503fc1)
2019-08-21 10:00:55 +02:00
Werner Koch
c66a2cc8d3
gpg: Remove unused arg in a card related function.
* g10/call-agent.c (agent_scd_setattr): Remove unused arg serialno.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 3a4534d82682f69788da3cf4a445e38fbaf6b98e)
2019-08-21 10:00:31 +02:00
Daniel Kahn Gillmor
64500e7f6d gpg,gpgsm: Handle pkdecrypt responses with/without NUL terminators.
* g10/call-agent.c (agent_pkdecrypt): accept but do not require
NUL-terminated data from the agent.
* sm/call-agent.c (gpgsm_agent_pkdecrypt): accept but do not require
NUL-terminated data from the agent.

--

Cherry-pick master commit of:
	3ba091ab8c93c87741a451f579d63dd500d7621d

GnuPG-bug-id: 4652
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2019-08-12 10:40:49 +09:00
NIIBE Yutaka
8e01676981 card: Fix showing KDF object attribute.
* g10/call-agent.c (learn_status_cb): Parse the KDF DO.
* g10/card-util.c (current_card_status): Show it correctly.

--

Backport master commit of:
	98f4eff7ffde106ae4f60739d1104282430ac14f

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-08-12 10:24:16 +09:00
NIIBE Yutaka
b21133ba80 gpg: The option --passphrase= can be empty.
* g10/gpg.c (opts): Use ARGPARSE_o_s for oPassphrase to allow
empty string.

--

Cherri-picked from master commit of:

	fcd766719a6e8f18f4be4c0f91e12aa157ca5506

GnuPG-bug-id: 4633
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-07-22 11:26:59 +09:00
NIIBE Yutaka
eb00a14f6d gpg: Improve import slowness.
* g10/import.c (read_block): Avoid O(N^2) append.
(sec_to_pub_keyblock): Likewise.

--

Cherry-picking the master commit of:
	33c17a8008c3ba3bb740069f9f97c7467f156b54

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-07-16 08:34:16 +09:00
NIIBE Yutaka
b7df72d307 gpg: Fix keyring retrieval.
* g10/keyring.c (keyring_get_keyblock): Avoid O(N^2) append.

--

Cherry-picking the master commit of:
	a7a043e82555a9da984c6fb01bfec4990d904690

GnuPG-bug-id: 4592
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-07-16 08:32:57 +09:00
Werner Koch
3c2cf5ea95
gpg: Do not try the import fallback if the options are already used.
* g10/import.c (import_one): Check options.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-07-09 11:22:08 +02:00
Werner Koch
b6effaf466
gpg: Fix regression in option "self-sigs-only".
* g10/import.c (read_block): Make sure KEYID is availabale also on a
pending packet.
--

Reported-by: Phil Pennock
Fixes-commit: adb120e663fc5e78f714976c6e42ae233c1990b0
Signed-off-by: Werner Koch <wk@gnupg.org>
2019-07-09 11:07:35 +02:00
Werner Koch
3242837d20
gpg: With --auto-key-retrieve prefer WKD over keyservers.
* g10/mainproc.c (check_sig_and_print): Print a hint on how to make
use of the preferred keyserver.  Remove keyserver lookup just by the
keyid.  Try a WKD lookup before a keyserver lookup.
--

The use of the the keyid for lookups does not make much sense anymore
since for quite some time we do have the fingerprint as part of the
signature.

GnuPG-bug-id: 4595
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 96bf8f477805bae58cfb77af8ceba418ff8aaad9)
2019-07-05 10:43:55 +02:00
Werner Koch
2b7151b0a5
gpg: Add "self-sigs-only" and "import-clean" to the keyserver options.
* g10/gpg.c (main): Change default.
--

Due to the DoS attack on the keyeservers we do not anymore default to
import key signatures.  That makes the keyserver unsuable for getting
keys for the WoT but it still allows to retriev keys - even if that
takes long to download the large keyblocks.

To revert to the old behavior add

  keyserver-optiions  no-self-sigs-only,no-import-clean

to gpg.conf.

GnuPG-bug-id: 4607
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 23c978640812d123eaffd4108744bdfcf48f7c93)
2019-07-04 15:59:14 +02:00
Werner Koch
4cbd058a3d
gpg: Avoid printing false AKL error message.
* g10/getkey.c (get_pubkey_byname): Add special traeatment for default
and skipped-local.
--

This change avoids error message like

  gpg: error retrieving 'foo@example.org' via None: No public key

A 'None' mechanism is something internal.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 91a6ba32347a21c9029728eec96b8ff80f944629)
2019-07-04 15:22:00 +02:00
Werner Koch
46f3283b34
gpg: New command --locate-external-key.
* g10/gpg.c (aLocateExtKeys): New.
(opts): Add --locate-external-keys.
(main): Implement that.
* g10/getkey.c (get_pubkey_byname): Implement GET_PUBKEY_NO_LOCAL.
(get_best_pubkey_byname): Add arg 'mode' and pass on to
get_pubkey_byname.  Change callers.
* g10/keylist.c (public_key_list): Add arg 'no_local'.
(locate_one): Ditto.  Pass on to get_best_pubkey_byname.
--

This new command is a shortcut for

  --auto-key-locate nodefault,clear,wkd,... --locate-key

and uses the default or configured AKL list but does so without local.

See also
GnuPG-bug-id: 4599

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit d00c8024e58822e0623b3fad99248ce68a8b7725)
2019-07-04 15:14:43 +02:00
Werner Koch
1187143343
gpg: Make the get_pubkey_byname interface easier to understand.
* g10/keydb.h (enum get_pubkey_modes): New.
* g10/getkey.c (get_pubkey_byname): Repalce no_akl by a mode arg and
change all callers.
--

This change prepares the implementation of GET_PUBKEY_NO_LOCAL.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 9980f81da765f88a65604ab083563bf15ccdb425)
2019-07-04 15:14:30 +02:00
Werner Koch
a1f2f38dfb
gpg: Fallback to import with self-sigs-only on too large keyblocks.
* g10/import.c (import_one): Rename to ...
(import_one_real): this.  Do not print and update stats on keyring
write errors.
(import_one): New.  Add fallback code.
--

GnuPG-bug-id: 4591
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 3a403ab04eeb45f12b34f9d9c421dac93eaf2160)
2019-07-02 09:25:21 +02:00
Werner Koch
adb120e663
gpg: New import and keyserver option "self-sigs-only"
* g10/options.h (IMPORT_SELF_SIGS_ONLY): New.
* g10/import.c (parse_import_options): Add option "self-sigs-only".
(read_block): Handle that option.
--

This option is intended to help against importing keys with many bogus
key-signatures.  It has obvious drawbacks and is not a bullet-proof
solution because a self-signature can also be faked and would be
detected only later.

GnuPG-bug-id: 4591
Signed-off-by: Werner Koch <wk@gnupg.org>

(cherry picked from commit 15a425a1dfe60bd976b17671aa8e3d9aed12e1c0)
2019-07-01 15:23:23 +02:00
Werner Koch
15a425a1df
gpg: Make read_block in import.c more flexible.
* g10/import.c: Change arg 'with_meta' to 'options'.  Change callers.
--

This chnage allows to pass more options to read_block.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-07-01 15:19:44 +02:00
Daniel Kahn Gillmor
520f5d70e4 spelling: Fix "synchronize"
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2019-06-23 20:17:47 -04:00
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:
	802a2aa300bad3d4385d17a2deeb0966da4e737d

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 e57954ed278cb5e6e725005b1ecaf7ce70006ce0)
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 af3efd149f555d36a455cb2ea311ff81caf5124c)
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 4324560b2c0bb76a1769535c383424a042e505ae)

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 5205512fc092c53c0a52c8379ef2a129ce6e58a9)
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 f799e9728bcadb3d4148a47848c78c5647860ea4)
2019-03-18 13:16:35 +01:00