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Commit Graph

258 Commits

Author SHA1 Message Date
Werner Koch
1d472e4934
scd:openpgp: Print a diagnostic for the use of default ECDH params.
* scd/app-openpgp.c (ecc_writekey): Remove the useless check and print
a diagnostic if the default params are used.
--

Note that here in 2.2 we use different default ECDH parameters than in
2.4 (AES192 instead of AES256 for 384 bit curves).

GnuPG-bug-id: 6378
2023-11-23 16:06:15 +01:00
Werner Koch
c45a8b034c
scd:openpgp: Use a special compare for the serialno.
* scd/app-openpgp.c (check_keyidstr): Ignore the card version and also
compare case insensitive.
(do_learn_status): Add mssing error handling.
--

This is required because we changed what we emit as serialno of
OpenPGP cards but existing keys still use the old form of the serial
number (i.e. with a firmware version).  This is so that existing stub
keys of gpg-agent will continue to work.

GnuPG-bug-id: 5100
2023-10-11 10:18:59 +02:00
Werner Koch
4e47639af0
scd:openpgp: Allow the reading the key by keygrip.
* scd/app-openpgp.c (do_readkey): Allow the keygrip for the keyid.
Use case insensitive match forthe keyid.
(do_readcert): Allow the keygrip for the keyid.
--

This patch is only to sync ths up with master.
2023-10-11 10:04:52 +02:00
Werner Koch
9252847646
scd:openpgp: Extend KEYPAIRINFO with an algorithm string.
* scd/app-openpgp.c (retrieve_fprtime_from_card): New.
(send_keypair_info): Add more to KEYPAIRINFO.
--

This is mainly needed to sync this version with master.
2023-10-11 09:51:13 +02:00
Werner Koch
10f8bb1671
scd:openpgp: Use shared fucntion for the dispserialno.
* scd/app-openpgp.c (wipe_and_free): New.
(wipe_and_free_string): New.
(get_disp_serialno): Remove.  Replace callers by function
app_get_dispserialno.
(get_usage_string): New.
(send_keypair_info): Use new function.
--

The new function has the same behaviour.  The wipe functions are
not yet used.
2023-10-11 09:38:45 +02:00
Werner Koch
fe683a1d7c
scd:openpgp: Some comment updates
--
2023-10-10 16:51:29 +02:00
NIIBE Yutaka
acda0a3f33
scd: Add handling of "Algorithm Information" DO.
* cd/app-openpgp.c (data_objects): Add 0x00FA.
(do_getattr): Add KEY-ATTR-INFO.

--

See the section 4.4.3.11 Algorithm Information in the OpenPGP card
functional specification version 3.4.1.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit 90d0072165)
Some parts where already here.
2023-10-10 16:37:03 +02:00
Werner Koch
d4208704a7
scd:openpgp: New KEY-STATUS attribute.
* scd/app-openpgp.c (do_getattr): Return KEY-STATUS
--

(cherry picked from commit 2149676122)
Some things from the original commit where already here.
2023-10-10 16:33:34 +02:00
Werner Koch
216f3fc96a
scd:openpgp: Add attribute "UIF" for convenience.
* scd/app-openpgp.c (do_getattr): New attrubute "UIF".
(do_learn_status): Use that.
--

Actually this is not just convenience but will make it easier to add
new keys to an openpgp card - we will need to change this only at one
place.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 11f0700282)
2023-10-10 16:25:31 +02:00
NIIBE Yutaka
52abdac2d4
scd: Add handling of Ed448 key.
* scd/app-openpgp.c (struct app_local_s): Add ecc.algo field.
(send_key_attr): Use ecc.algo field.
(ecc_read_pubkey): Use ecc.algo field.
(ecc_writekey): Ed448 means EdDSA.
(parse_algorithm_attribute): Set ecc.algo field from card.
Add checking for Ed25519 for ECC_FLAG_DJB_TWEAK flag.

--

There used to be a possible support of Ed25519 with ECDSA, (instead of
EdDSA).  To distinguish key for Ed25519 for EdDSA, we use the
flag: (flags eddsa).  Ed448 has no support for ECDSA and defaults to
EdDSA even if no such flag.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit b743942a97)
2023-10-10 16:17:04 +02:00
Werner Koch
b262a21c61
scd:openpgp: Support the ecdh-params arg for writing keys.
* scd/app-openpgp.c (ecc_writekey): Use provided ECDH params to
compute the fingerprint.  Add a default for use by gnupg 2.2.
(store_fpr): Add arg update.
(rsa_read_pubkey, ecc_read_pubkey): Add arg meta_update and avoid
writing the fingerprint back to the card if not set.
(read_public_key): Also add arg meta_update.
(get_public_key): Do not pass it as true here...
(do_genkey): ... but here.
--

This is based on commit c03ba92576 and
done here to ease backporting.  There is no functional change.

GnuPG-bug-id: 6378
2023-10-10 16:10:21 +02:00
Werner Koch
d25e960652
scd:openpgp: Handle wrong error return code of Yubikey.
* scd/app-openpgp.c (get_public_key): Handle wrong error code by
Yubikeys.
--

This has been taken from commits
  0db9c83555
  946555ea3c
2023-10-10 16:10:02 +02:00
NIIBE Yutaka
d938abcc5e
scd: Fix description string.
* scd/app-openpgp.c (data_objects): Capitalize the word for usage.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit e6b7e0ff99)
2023-10-10 15:17:29 +02:00
NIIBE Yutaka
7666a45830
scd:openpgp: Support UIF changing command.
* g10/card-util.c (uif, cmdUIF): New.
(card_edit): Add call to uif by cmdUIF.
* scd/app-openpgp.c (do_getattr): Support UIF-1, UIF-2, and UIF-3.
(do_setattr): Likewise.
(do_learn_status): Learn UIF-1, UIF-2, and UIF-3.

--

GnuPG-bug-id: 4158
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit 0cb65564e0)
Also included the relevant part from
commit 0240345728

Note that this patch is mainly to simplifying backporting and not to
support the UIF.
2023-10-10 15:16:22 +02:00
Werner Koch
9e3b7e26a9
scd:openpgp: Small speedup reading card properties.
* scd/app-openpgp.c (struct app_local_s): Add new flag.
(get_cached_data): Force chace use if flag is set.
(app_select_openpgp): Avoid reading DO 6E multiple times.
--

The do not cache property of 6E was introduced so that we can change
for example key attributes without getting into with the cache.
However, for initial reading the cache makes a lot of sense and thus we
now use this hack to only temporary cache.  A better strategy would be
to clear the cache when we change card data but that is more error
prone.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit d5fb598323)
2023-10-10 13:59:51 +02:00
Werner Koch
57bfad2c39
scd:openpgp: Allow reading and writing user certs for keys 1 and 2
* scd/iso7816.c (CMD_SELECT_DATA): New.
(iso7816_select_data): New.
* scd/app-openpgp.c (do_readcert): Allow OpenPGP.1 and OPENPGP.2
(do_writecert): Ditto.
(do_setattr): Add CERT-1 and CERT-2.
--

This has been tested with a Zeitcontrol 3.4 card.  A test with a
Yubikey 5 (firmware 5.2.6) claiming to support 3.4 failed.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 37b1c5c200)
2023-10-10 13:54:26 +02:00
Werner Koch
b2363c1dd9
scd: Allow standard keyref scheme for app-openpgp.
* scd/app-openpgp.c (do_change_pin): Allow prefixing the CHVNO with
"OPENPGP."
--

The generic keyref allows for better error detection in case a keyref
is send to a wrong card.  This has been taken from master commit
3231ecdafd which has additional changed
for gpg-card-tool, which is only available there.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 6651a0640d)
2023-10-10 13:43:38 +02:00
NIIBE Yutaka
3d368c1a7d
scd:openpgp: Support GET DATA response with no header for DO 0x00FA.
* scd/app-openpgp.c (do_getattr): Support Gnuk, as well.
--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit 43bbc25b0f)
2023-10-10 13:29:49 +02:00
Werner Koch
c4eada0787
scd:openpgp: Pass arg ctrl to more functions.
* scd/app-openpgp.c (verify_a_chv): Add currently unused arg ctrl.
Adjust callers.
(verify_chv3): Ditto.
(verify_chv2): Add arg ctrl.  Adjust callers.
(change_keyattr): Ditto.
(change_rsa_keyattr): Ditto.
(change_keyattr_from_string): Ditto.
(rsa_writekey): Ditto.
(ecc_writekey): Ditto.
--

This helps in backporting from master.
2023-10-10 13:25:23 +02:00
Werner Koch
03aa4e6651
scd:openpgp: Replace assert by log_assert.
* scd/app-openpgp.c: Remope assert.h. Replace all assert by
log_assert.
2023-10-10 12:11:50 +02:00
NIIBE Yutaka
a942986f17
scd:openpgp: Fix computing fingerprint for ECC with SOS.
* scd/app-openpgp.c (count_sos_bits): New.  Count as sos_write does.
(store_fpr): For ECC, use count_sos_bits.
--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit 95156ef9bf)
and
(cherry picked from commit f482e4bd12)
2023-10-10 12:06:22 +02:00
Werner Koch
24033dc8ae
scd:openpgp: Very minor refactoring
* scd/app-openpgp.c (app_select_openpgp): Move AID definition to ...
(openpgp_aid): new.
2023-10-10 11:55:25 +02:00
Werner Koch
7f8cac5cec
scd:openpgp: Rename an internal variable.
* scd/app-openpgp.c (struct app_local_s): s/extcap_v3/is_v3/.
s/max_certlen_3/max_certlen.  Change users.
--

The extcap_v3 flag is set if the version is 3 or later and as such
does not only declare that the v3 extcap layout is used.  Make this
clear by renaming.

Likewise for max_certlen_3.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit bbdb48ec0d)
2023-10-10 11:46:14 +02:00
Werner Koch
2630872cff
scd,openpgp: Switch key attributes between RSA and ECC in writekey.
* common/sexputil.c (get_rsa_pk_from_canon_sexp): Also allow private
keys.
(pubkey_algo_string): Ditto.
* scd/app-openpgp.c (do_writekey): Switch key attributes
--

The scd WRITEKEY command for OpenPGP cards missed proper support to
aautomagically switch key attributes based on the new key.  We had
this only in GENKEY.

GnuPG-bug-id: 6378
2023-03-14 16:16:40 +01:00
NIIBE Yutaka
abcf0116ee
scd: Fix checking memory allocation.
* scd/app-openpgp.c (read_public_key): Fix the memory.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2023-03-08 11:04:15 +01:00
NIIBE Yutaka
d6aa8bcbbb
scd: Parse "Algorithm Information" data object in scdaemon.
* scd/app-openpgp.c (data_objects): 0x00FA for binary data.
(do_getattr): Parse the data and send it in status lines.
(get_algorithm_attribute_string): New.
--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
Backported-from-master: eba2563dab
Backported-from-master: 43bbc25b0f
2023-02-17 13:04:09 +01:00
Werner Koch
210ba98355
scd:openpgp: Allow auto-changing of the key attributes in genkey.
* scd/app-openpgp.c (struct app_local_s): Add field keyalgo.
(parse_algorithm_attribute): Store the new keyalgo field.
(change_keyattr): Change info message.
(change_keyattr_from_string): Rewrite to also accept a keyref and a
keyalgo string.
(do_genkey): Change the keyattr if a keyalgo string is given.
* scd/command.c (cmd_genkey): Add option --algo.
--

Having this feature makes it easier to use OpenPGP cards in a similar
way to other cards.  Note that the explicit changing via SETATTR is
still supported.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit d7d75da505)
(cherry picked from commit b349adc5c0)
2023-01-13 14:54:23 +01:00
Werner Koch
12d3b16729
scd: Use app_get_slot at more places.
--

This is helpful for backporting other changes.
2022-10-28 12:07:11 +02:00
NIIBE Yutaka
8c9f879d4a scd:openpgp: Fix workaround for Yubikey heuristics.
* scd/app-openpgp.c (parse_algorithm_attribute): Handle the case
of firmware 5.4, too.

--

Cherry-picked master commit of:
	f34b9147eb

GnuPG-bug-id: 6070
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-07-13 10:53:56 +09:00
NIIBE Yutaka
225c66f13b scd: Fail when no good algorithm attribute.
* scd/app-openpgp.c (parse_algorithm_attribute): Return the error.
(change_keyattr): Follow the change.
(app_select_openpgp): Handle the error of parse_algorithm_attribute.

--

Backport master commit of:
	53eddf9b9e

This change allows following invocation of app_select_openpgp, which
may work well (if the problem is device side for initial connection).

GnuPG-bug-id: 5963
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-07-13 09:47:32 +09:00
NIIBE Yutaka
07e43eda8d scd: Don't inhibit SSH authentication for larger data if it can.
* scd/app-openpgp.c (do_auth): Use command chaining if available.

--

Cherry-picked from master branch of:
	e8fb8e2b3e

GnuPG-bug-id: 5935
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-07-12 16:11:08 +09:00
NIIBE Yutaka
a5217c9000 scd: Add workaround for ECC attribute on Yubikey.
* scd/app-openpgp.c (parse_algorithm_attribute): Skip possibly bogus
octet in a key attribute.

--

Apply master commit of:
	054d14887e

GnuPG-bug-id: 5963
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-05-10 14:21:09 +09:00
NIIBE Yutaka
b6b735edab
scd:openpgp: Support longer data for INTERNAL_AUTHENTICATE.
* scd/app-openpgp.c (do_auth): Use extended Lc, when supported.

--

GnuPG-bug-id: 5682
Co-authored-by: Klas Lindfors
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-11-15 17:54:04 +01:00
Werner Koch
3283cf3a7a
Update OpenPGP card vendor list.
--
2021-07-04 15:49:50 +02:00
Kirill Elagin
6c4216094e
scd: Fix unblock PIN by a Reset Code with KDF.
* scd/app-openpgp.c (do_change_pin): Use correct CHVNO=1 for
pin2hash_if_kdf, for user's PIN.

--

GnuPG-bug-id: 5413
Signed-off-by: Kirill Elagin <kirelagin@gmail.com>
(cherry picked from commit f209d7d2db)
2021-05-04 10:27:32 +02:00
Werner Koch
5eec40f3d8
scd: New option --pcsc-shared.
* scd/scdaemon.h (opt): Add field opcsc_shared.
* scd/scdaemon.c (opcscShared): New.
(opts): Add "--pcsc-shared".
(main): Set flag.
* scd/apdu.c (connect_pcsc_card): Use it.
(pcsc_get_status): Take flag in account.
* scd/app-openpgp.c (verify_chv2): Do not auto verify chv1 in shared
mode.
--

This option should in general not be used.  The patch tries to limit
bad effects but using shared mode is somewhat dangerous depending on
the other PC/SC users.

(cherry picked from commit 5732e7a8e9)
2021-04-29 19:43:23 +02:00
Werner Koch
5b8593135f
common: Extend the openpgp_curve_to_oid function.
* common/openpgp-oid.c (openpgp_curve_to_oid): Add optional arg R_NBITS.
Change all callers.
--

In particular for ed25519 and cv25519 it is quite useful to have an
ability to get the required algorithm.

(cherry picked from commit 24095101a5)
2021-04-29 12:57:00 +02:00
Werner Koch
41979ed730
scd: Change parameters of readkey fucntion pointer.
* scd/app-common.h (APP_READKEY_FLAG_ADVANCED): New.
(struct app_ctx_s): Replace param advanced by flags in readkey.
Change all users.
2021-02-19 10:10:28 +01:00
Werner Koch
669786cf64
scd: Pass ctrl parameter to more app functions.
* scd/app-common.h (struct app_ctx_s): Add parameter ctrl to function
pointers for readkey, setattr, sign, auth, decipher, and check_pin.
--

This is a yet another patch to allow for easier backporting.
2021-02-19 09:56:44 +01:00
Werner Koch
f8588369bc
scd: Detect Yubikey and provide nicer display-s/n.
* scd/app-common.h (struct app_ctx_s): Rename unused field
card_version to cardversion.
* scd/app.c (app_new_register): Add code rom 2.3 to detect the Yubikey
and set cardversion.
(app_get_dispserialno): New.
* scd/app-openpgp.c (do_getattr): Use app_get_dispserialno.
2021-02-19 09:20:29 +01:00
Werner Koch
43b3ec5aee
scd: Change the apptype from a string to an enum.
* scd/app-common.h (cardtype_t): New.
(apptype_t): New.
(struct app_ctx_s): Change type of field apptype.  Add fields
appversion and cardtype.  Adjust all app-*.c for the new type.
* scd/app.c (supported_app_list): New.
(strapptype): New.
(apptype_from_name): New.
(app_dump_state): Use strapptype.
(app_write_learn_status): Ditto.
(app_getattr): Ditto.
(check_conflict): Use apptype_from_name and integer comparison.
* scd/app-openpgp.c: Replace app->card_version by app->appversion.
--

This is another patch to make backporting from 2.3 easier.
2021-02-19 09:17:06 +01:00
Werner Koch
6380126b31
scd: Add some compatibility code for easier backporting.
* scd/app-common.h (APP_WRITEKEY_FLAG_FORCE): New.
(APP_READKEY_FLAG_INFO): New.
(APP_LEARN_FLAG_KEYPAIRINFO): New.
(APP_LEARN_FLAG_MULTI): New.
(struct app_ctx_s): New forward declaration.
(struct app_ctx_s): Add members prep_reselect, reselect, and
with_keygrip.
(KEYGRIP_ACTION_SEND_DATA): New.
(KEYGRIP_ACTION_WRITE_STATUS): New.
(KEYGRIP_ACTION_LOOKUP): New.
(APP_CARD): New macro.
* scd/scdaemon.h: Include app-common.h and remove from all other
files.
(app_t): Move typedef to ...
* scd/app-common.h: here.
--

These changes will make it easier to backport changes from 2.3 to 2.2.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-02-19 08:30:36 +01:00
NIIBE Yutaka
5a03bf6130 scd:openpgp: Fix writing ECC key to card.
* scd/app-openpgp.c (build_privkey_template): Adding another argument
of ecc_d_fixed_len to handle variable-size MPI.

--

Backport from master commit of:
	a25c99b156

GnuPG-bug-id: 5163
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-12-07 10:06:52 +09:00
Gavin L. Rebeiro
563db31467
doc: Fix typos
--
GnuPG-bug-id: 5071

Also fixed one in keyformat.txt [wk].

(cherry picked from commit 572bcacc28)
2020-11-23 12:13:52 +01:00
NIIBE Yutaka
84020385be scd:openpgp: Public keys should be available for check_keyidstr.
* scd/app-openpgp.c (check_keyidstr): Call get_public_key.

--

GnuPG-bug-id: 5065
Fixes-commit: 1049f06c6d
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-11-19 13:49:08 +09:00
Werner Koch
3274eb4637
scd:openpgp: Drop support for GnuPG 1.
--

It does not make sense to keep support form GnuPG 1 here given that we
don't intend to ever backport any of the current stuff to the legacy
version.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-11-16 17:09:39 +01:00
Werner Koch
1049f06c6d
scd:openpgp: Allow keygrip to be used to reference a key
* scd/app-openpgp.c (struct app_local_s): Add keygrip_str.
(store_keygrip): New.
(read_public_key): Store the keygrip.
(get_public_key): Sitto.
(send_keypair_info): USe the stored keygrip.
(check_keyidstr): New.  Factored out from other functions and
extended.
(do_sign): Use check_keyidstr.
(do_auth): Ditto.
(do_decipher): Ditto.
(do_check_pin): Ditto.
--

This code is a backport of commits:

b0f0791e4a
cd: Factor out a function to check keyidstr.

4c4999b818
scd:openpgp: Allow PKSIGN with keygrip also for OPENPGP.3.

e769609cd3
scd: Allow KEYGRIP as KEYIDSTR.

Co-authored-by: NIIBE Yutaka <gniibe@fsij.org>
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-11-16 17:09:37 +01:00
NIIBE Yutaka
25bec16d0b scd: Add a workaround for Yubikey.
* scd/app-openpgp.c (get_public_key): Handle wrong code for Yubikey.

--

Backport master commit of:

	0db9c83555

Yubikey version 5 s/n 609074582 returns 0x6982, version 5.2.4 s/n
610616049 returns 0x6581, where 0x6a88 is expected.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-10-06 17:15:49 +09:00
NIIBE Yutaka
0f4c956a76 scd: Silence compiler warning.
* scd/app-openpgp.c (build_ecc_privkey_template): Fix allocation size.

--

Cherry-picked from master commit of:

	2a34a2afea

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-10-06 12:01:13 +09:00
NIIBE Yutaka
7c8823bf82 scd: Report any error for LEARN command.
* scd/app-openpgp.c (do_learn_status): Report any error.

--

Backport master commit of:

	862d9c6fac

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-10-06 11:52:24 +09:00