Commit Graph

318 Commits

Author SHA1 Message Date
NIIBE Yutaka 35ef87d8d9
scd:openpgp: Robust Data Object handling for constructed case.
* scd/app-openpgp.c (get_cached_data): When it comes with
its tag and length for the constructed Data Object, remove
them.

--

GnuPG-bug-id: 7058
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2024-04-15 10:23:25 +09:00
NIIBE Yutaka 984a0c6982
scd:openpgp: Fix data_objects specification for F9 and FA.
* scd/app-openpgp.c (data_objects): These are constructed objects.

--

GnuPG-bug-id: 7058
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2024-03-27 10:27:04 +09:00
Werner Koch cec1fde1bc
scd: Add new OpenPGP vendor
--
2024-03-26 14:57:52 +01:00
Werner Koch 40b85d8e8c
scd:openpgp: Allow PIN length of 6 also with a reset code.
* scd/app-openpgp.c (do_change_pin): Fix PIN length check.  Add "R"
flag to the reset code prompt.
--

When using the reset code it was not possible to set a PIN of length
6.  The "R" flags fixes a funny prompt.

Fixes-commit: efe325ffdf
scd:openpgp: Allow PIN length of 6 also with a reset code.

* scd/app-openpgp.c (do_change_pin): Fix PIN length check.  Add "R"
flag to the reset code prompt.
--

When using the reset code it was not possible to set a PIN of length
6.  The "R" flags fixes a funny prompt.

Fixes-commit: 2376cdff13
2024-01-30 15:58:14 +01:00
NIIBE Yutaka 2376cdff13
scd:openpgp: Add the length check for new PIN.
* scd/app-openpgp.c (do_change_pin): Make sure new PIN length
is longer than MINLEN.

--

GnuPG-bug-id: 6843
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2023-12-22 13:32:40 +09:00
Werner Koch 4c456bf075
scd:openpgp: Fallback to default ECDH params in writekey.
* scd/app-openpgp.c (ecc_writekey): Use default ECDH parameters and
remove the now useless check.
--

This seems to be better than bailing out.  In almost all cases our
standard parameters are used and if not, well, the fingerprint will be
wrong.

GnuPG-bug-id: 6378
2023-11-23 16:01:58 +01:00
NIIBE Yutaka 4257cbb06c
scd: Return GPG_ERR_PIN_BLOCKED when it's blocked.
* scd/app-openpgp.c (build_enter_admin_pin_prompt): Fix to use
GPG_ERR_PIN_BLOCKED.
(check_pin): Likewise.

--

Cherry-pick from master commit:
	e6b3d53db3

GnuPG-bug-id: 6425
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2023-11-08 11:49:27 +09:00
Werner Koch 4963f13f8f
scd:openpgp: Return better error codes for the Reset Code.
* scd/app-openpgp.c (do_change_pin): Use GPG_ERR_BAD_RESET_CODE where
appropriate.
* common/util.h: Add error codes missing in gpgrt 1.46.

* agent/call-pinentry.c (unlock_pinentry): Handle
GPG_ERR_BAD_RESET_CODE.
(agent_askpin): Ditlo.  Also simply condition.
(agent_get_passphrase):  Ditto.
* g10/call-agent.c (status_sc_op_failure): Handle
GPG_ERR_BAD_RESET_CODE.
* g10/card-util.c (write_sc_op_status): Ditto.
* tools/card-call-scd.c (status_sc_op_failure): Ditto.
2023-10-06 12:15:10 +02:00
Werner Koch c03ba92576
gpg: Fix writing ECDH keys to OpenPGP smartcards.
* agent/command.c (cmd_keytocard): Add new arg for ECDH params.
* scd/app-openpgp.c (ecc_writekey): Use provided ECDH params to
compute the fingerprint.
* g10/call-agent.c (agent_keytocard): Add arg ecdh_param_str.
* g10/keyid.c (ecdh_param_str_from_pk): New.
* g10/card-util.c (card_store_subkey): Pass ECDH params to writekey.
* g10/keygen.c (card_store_key_with_backup): Ditto.

* scd/app-openpgp.c (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.
(rsa_write_key, ecc_writekey): Force string the fingerprint.
--

The problem showed up because in 2.4 we changed the standard ECDH
parameter some years ago.  Now when trying to write an ECDH key
created by 2.2 with 2.4 to an openpgp card, scdaemon computes a wrong
fingerprint and thus gpg was not able to find the key again by
fingerprint.

The patch also avoids updating the stored fingerprint in certain
situations.

This fix is somewhat related to
GnuPG-bug-id: 6378
2023-04-21 15:23:29 +02:00
Werner Koch 2e065b4bd2
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
2023-03-15 09:42:02 +01:00
NIIBE Yutaka 4e391d95e0
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 11:33:18 +09:00
Werner Koch 67e510cbf7
scd:opengpg: Minor vendor name fix
--
2022-07-28 13:06:03 +02:00
Werner Koch 6d9c8a1cbc
scd:openpgp: New vendor
--
2022-07-28 09:01:24 +02:00
NIIBE Yutaka f34b9147eb scd:openpgp: Fix workaround for Yubikey heuristics.
* scd/app-openpgp.c (parse_algorithm_attribute): Handle the case
of firmware 5.4, too.

--

GnuPG-bug-id: 6070
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-07-13 10:40:55 +09:00
NIIBE Yutaka 273b8ec193 scd,openpgp: Support READCERT by keygrip.
* scd/app-openpgp.c (do_readcert): Allow use of keygrip.

--

GnuPG-bug-id: 6002
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-06-10 11:45:26 +09:00
NIIBE Yutaka 5264d3f58e scd: Return USAGE information for KEYINFO command.
* scd/command.c (hlp_keyinfo): Update.
(send_keyinfo): Add a USAGE argument.
* scd/scdaemon.h (send_keyinfo): Add a USAGE argument.
* scd/app-nks.c (set_usage_string): New.
(do_learn_status_core, do_readkey): Use set_usage_string.
(do_with_keygrip): Add USAGE to call send_keyinfo,
using set_usage_string.
* scd/app-openpgp.c (get_usage_string): New.
(send_keypair_info): Use get_usage_string.
(send_keyinfo_if_available): Add USAGE to call send_keyinfo,
using get_usage_string.
* scd/app-p15.c (set_usage_string): New.
(send_keypairinfo): Use set_usage_string.
(do_with_keygrip): Add USAGE to call send_keyinfo,
using set_usage_string.
* scd/app-piv.c (do_with_keygrip): Add USAGE to call send_keyinfo.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-05-26 12:01:16 +09:00
NIIBE Yutaka 53eddf9b9e 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.

--

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>
2022-05-11 11:16:26 +09:00
Werner Koch 5e5df82b5f
scd:openpgp: New card vendor.
--

BTW, we should add a function to read out the entire table so that you
can ask scdaemon for that list.  iirc,  Kleopatra still uses a copy of
the table.
2022-05-10 16:21:27 +02:00
NIIBE Yutaka 054d14887e scd: Add workaround for ECC attribute on Yubikey.
* scd/app-openpgp.c (parse_algorithm_attribute): Skip possibly bogus
octet in a key attribute.

--

GnuPG-bug-id: 5963
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-05-06 18:27:11 +09:00
NIIBE Yutaka 2848fe4c84 scd: Fix hard-coded constant for RSA auth.
* scd/app-openpgp.c (do_auth): Allow larger data for RSA-4096.

--

OpenPGPcard specification says that it will be rejected by the card
when it's larger.  We have been the check on host side too, but it was
written when it only had a support for RSA-2048.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-04-25 11:14:10 +09:00
NIIBE Yutaka e8fb8e2b3e scd: Don't inhibit SSH authentication for larger data if it can.
* scd/app-openpgp.c (do_auth): Use command chaining if available.

--

GnuPG-bug-id: 5935
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-04-22 11:50:19 +09:00
NIIBE Yutaka 44621120a2 scd: Add --challenge-response option to PK_AUTH for OpenPGP card.
* scd/app-openpgp.c (rmd160_prefix, sha1_prefix, sha224_prefix)
(sha256_prefix, sha384_prefix, sha512_prefix): Move the scope up.
(gen_challenge): New.
(do_auth): Support challenge-response check if it signs correctly.
* scd/app.c (app_auth): Remove the check INDATA and INDATALEN.
* scd/command.c (cmd_pkauth): Support --challenge-response option.

--

GnuPG-bug-id: 5862
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-03-03 17:45:49 +09:00
NIIBE Yutaka a575b0aba5 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 11:40:41 +09:00
Werner Koch c36f9917bb
scd: Add new OpenPGP card vendor.
--
2021-11-04 16:35:41 +01:00
Werner Koch 924c8221fb
scd: Silence compiler waring about unused args.
--
2021-07-08 14:11:10 +02:00
NIIBE Yutaka 044e5a3c38 scd: Detect external interference when PCSC_SHARED.
* scd/app-common.h (check_aid): New method.
* scd/app-openpgp.c (do_check_aid): New.
* scd/app-piv.c (do_check_aid): New.
* scd/app.c (check_external_interference): New.
(maybe_switch_app): Check interference to determine switching is
needed.

--

GnuPG-bug-id: 5484
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-07-06 14:52:29 +09:00
NIIBE Yutaka 4e02db75e3 scd: Support clearing of Reset Code by ''.
* scd/app-openpgp.c (do_change_pin): Allow null-string.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-06-11 13:42:01 +09:00
Werner Koch cd53c6d0f3
scd: Add new card vendor.
--
2021-06-10 21:55:36 +02:00
NIIBE Yutaka 5b1806454c scd: Fix zero-byte handling in ECC.
* scd/app-openpgp.c (ecc_writekey): Don't remove zero-byte.

--

Fixes-commit: a25c99b156
GnuPG-bug-id: 5163
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-05-28 11:34:56 +09:00
Kirill Elagin f209d7d2db 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>
2021-04-27 20:34:35 +09:00
Werner Koch 1c16878efd
scd: Replace all assert macros by the log_assert macro.
Signed-off-by: Werner Koch <wk@gnupg.org>
2021-03-31 19:16:05 +02:00
Werner Koch 37b1c5c200
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>
2021-03-19 18:26:03 +01:00
Werner Koch bbdb48ec0d
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>
2021-03-19 15:24:08 +01:00
Werner Koch d5fb598323
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>
2021-03-19 13:43:46 +01:00
NIIBE Yutaka b743942a97 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>
2021-03-15 17:02:32 +09:00
NIIBE Yutaka f482e4bd12 scd: Fix count_sos_bits handling.
* scd/app-openpgp.c (count_sos_bits): Handle an exceptional case.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-03-15 17:00:56 +09:00
Werner Koch 5732e7a8e9
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 (cache_pin): Bypass in shared mode.
(verify_chv2: Do not auto verify chv1 in shared mode.
* scd/app-piv.c (cache_pin): By pass caceh 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.
2021-03-12 09:31:17 +01:00
NIIBE Yutaka 95156ef9bf scd: 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>
2021-03-12 16:20:28 +09:00
Werner Koch a1f281eeec
scd: Swapped openpgp card vendor 0x000a with new 0x000d.
--
2021-03-09 11:15:34 +01:00
Werner Koch 9f8361eda8
scd: Add new Openpgp card vendor name
--
2021-03-09 11:03:14 +01:00
NIIBE Yutaka fc99f77b14 scd: Fix for X448.
* scd/app-openpgp.c (do_decipher): Support with no prefix.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-03-08 16:23:26 +09:00
Werner Koch 6d4280b13d
scd: Minor tweak for easier backporting
* scd/app-common.h (APP_CARD): New.  Use it in app-*.c to access
app->card.
--

This should help to make backporting to 2.2 easier.
2021-02-19 10:15:54 +01:00
NIIBE Yutaka 946555ea3c scd:yubikey: Fix support of Yubikey NEO.
* scd/app-openpgp.c (get_public_key): Yubikey NEO also has this issue.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-12-08 17:45:18 +09:00
NIIBE Yutaka a25c99b156 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.

--

GnuPG-bug-id: 5163
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-12-03 15:04:14 +09:00
Werner Koch 7113263a00
agent: Fix YK s/n and prettify the request card prompt for Yubikeys
* agent/divert-scd.c (ask_for_card): Detect and re-format the Yubikey
prompt.
* scd/app.c (app_munge_serialno): Fix Yubikey s/n munging.
(card_get_dispserialno): Ditto.
* scd/app-openpgp.c (get_disp_serialno): Remove.
(get_prompt_info): Use app_get_dispserialno.--
--
2020-11-26 15:56:37 +01:00
Werner Koch 764c69a841
scd: Add special serialno compare for OpenPGP cards.
* scd/app.c (is_same_serialno): New.
(check_application_conflict): Use this.
(select_application): Ditto.
(app_switch_current_card): Ditto.
* scd/app-openpgp.c (check_keyidstr): Ignore the card version and also
compare case insensitive.
--

This is required because we change 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).

See-commit: 3a8250c020
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-11-26 09:54:23 +01:00
Werner Koch 3a8250c020
scd: Rework the handling of the displayed serial number.
* scd/app.c (app_new_register): Call app_munge_serialno for Yubikeys.
(app_munge_serialno): Handle Yubikey serial numbers.
(card_get_serialno): Remove special Yubikey treatment.  Drop arg
is_canonical.
(app_get_serialno): Clear ERRNO on error.
(card_get_dispserialno): New.  Also change formatting of Yubikey and
OpenPGP numbers to match those printed on the card.
(app_get_dispserialno): New.
* scd/app-openpgp.c (do_getattr): Use app_get_dispserialno.
(yubikey_get_serialno): Remove.
* scd/app-piv.c (get_dispserialno): Remove.
(do_getattr): Use app_get_dispserialno.
--

This patch gets us back to a unique serial number for cards and
provides a stable serial number as printed for Yubikeys.

Because we use a slightly different serial number now for Yubikeys and
cards only supporting OpenPGP card we need to come up with another
change so that the version number of OpenPGP serial numbers are
ignored when comparing card serial numbers.  This is so that existing
stub keys of gpg-agent will continue to work.

GnuPG-bug-id: 5100
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-11-25 10:23:55 +01:00
Gavin L. Rebeiro 572bcacc28
doc: Fix typos
--
GnuPG-bug-id: 5071

Also fixed one in keyformat.txt [wk].
2020-11-23 12:11:15 +01:00
NIIBE Yutaka 2d4de4b6f0 scd: Handle Yubikey's multiple apps and serialno.
* scd/app-common.h (yubikey_get_serialno): New.
* scd/app-openpgp.c (yubikey_get_serialno): New.
* scd/app.c (card_get_serialno): Use OpenPGP app's serialno,
when it's enabled for Yubikey.
(send_serialno_and_app_status): Use card_get_serialno, not
directly accessing ->serialno.

--

GnuPG-bug-id: 5100
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-10-23 16:31:03 +09:00
NIIBE Yutaka 65c91e601a scd: Don't overwrite serialno for Yubikey.
* scd/app-openpgp.c (app_select_openpgp): Keep ->serialno.

--

GnuPG-bug-id: 5100
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-10-23 15:19:53 +09:00