Commit Graph

955 Commits

Author SHA1 Message Date
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
Jakub Jelen 27e7bde12e
scd: avoid memory leaks
* scd/app-p15.c (send_certinfo): free labelbuf
  (do_sign): goto leave instead of return
* scd/app-piv.c (do_sign): goto leave instead of return, fix typo in
  variable name, avoid using uninitialized variables
* scd/command.c (cmd_genkey): goto leave instead of return

--

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
GnuPG-bug-id: 5393
2021-05-20 14:48:18 +02:00
Ingo Klöcker 65bc5ea95e scd:p15: Fix logic for appending product name to MANUFACTURER.
* scd/app-p15.c (do_getattr): Append product name to MANUFACTURER if
manufacturer_id does not already contain a bracket and if we have a
product name.
2021-05-18 09:45:06 +02:00
NIIBE Yutaka 58b330e935 scd: Remove wrong assertion and add protection to PCSC.COUNT.
* scd/apdu.c (apdu_dev_list_finish): Fix for calling
release_pcsc_context.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-05-14 13:06:10 +09:00
Werner Koch 965bb0693c
A few minor code cleanups and typo fixes.
* agent/command-ssh.c (ssh_handler_request_identities): Remove double
check of ERR.
* g10/getkey.c (get_pubkey_byname): Remove double use of break.
* g10/pkglue.c (pk_encrypt): Handle possible NULL-ptr access due to
failed malloc.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-05-11 09:06:34 +02:00
NIIBE Yutaka 32baa9acfb scd: Serialize READER_TABLE access for PC/SC.
* scd/apdu.c (apdu_dev_list_start): Remove locking READER_TABLE_LOCK.
Don't increment PCSC.COUNT here.
(apdu_dev_list_finish): Don't decrement PCSC.COUNT here.
(apdu_open_reader): Protect access with READER_TABLE_LOCK.

--

GnuPG-bug-id: 5416
Fixes-commit: 8d81fd7c01
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-05-11 10:25:12 +09:00
NIIBE Yutaka ec5591dc4e scd: Fix close_pcsc_reader.
* scd/apdu.c (close_pcsc_reader): Don't touch .RDRNAME field.
(apdu_dev_list_finish): Clear .RDRNAME field and replace call of
close_pcsc_reader by release_pcsc_context.  Add assertion.

--

GnuPG-bug-id: 5416
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-05-10 10:49:21 +09:00
NIIBE Yutaka cccc9bd5db scd: Make sure releasing PC/SC context.
* scd/apdu.c (release_pcsc_context): New.
(close_pcsc_reader): Use release_pcsc_context.  Add assertion.
(apdu_dev_list_start): Replace call of close_pcsc_reader
into release_pcsc_context, add condition.

--

GnuPG-bug-id: 5416
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-05-10 10:31:08 +09:00
NIIBE Yutaka 0498ea8fbd scd: Increment PCSC.COUNT correctly.
* scd/apdu.c (open_pcsc_reader): PCSC.COUNT should
be incremented before possible call of close_pcsc_reader.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-05-07 11:25:20 +09:00
NIIBE Yutaka 5d1b413106 scd: Fix memory leak for RDRNAME and serialize access.
* scd/apdu.c (close_pcsc_reader): Move locking to...
(apdu_close_reader): ... here, as it's also needed for CCID driver.
Free RDRNAME when closed.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-05-07 10:48:13 +09:00
NIIBE Yutaka 039aed9d40 scd: Fix declarations for PC/SC access.
* scd/apdu.c (pcsc_begin_transaction, pcsc_transmit): Use HANDLE.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-05-07 07:11:17 +09:00
NIIBE Yutaka 53bdc6288f scd: Recover the partial match for PORTSTR for PC/SC.
* scd/apdu.c (apdu_open_reader): Allow partial match of
PORTSTR again just like 2.2 does.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-05-06 19:08:34 +09:00
NIIBE Yutaka d6fe82d3d1 scd: When reader is specified, make sure only open once.
* scd/apdu.c (apdu_open_reader): Make sure not to try multiple times,
when PORTSTR is specified.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-05-06 19:05:30 +09:00
Werner Koch 8d81fd7c01
scd: Fix PC/SC removed card problem
* scd/apdu.c (pcsc_cancel): New.
(pcsc_init): Load new function.
(connect_pcsc_card): Use it after a removed card error.
--

Well, that was easier than I expected yesterday.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-29 09:14:25 +02:00
Werner Koch 1f846823b3
scd:p15: Fix the name of a card.
--
2021-04-28 18:31:51 +02:00
Werner Koch bb8e3996e4
scd: Fix problem with reader list becoming empty.
* scd/apdu.c (close_pcsc_reader): Do not decrement refcount if already
zero.  Always release context if or becomes zero.
(apdu_dev_list_start): Unlock prior to close_pcsc_reader.  For PC/SC
increment the count.  Always release the lock.
(apdu_dev_list_finish): No more unlocking.  Use close_pcsc_reader
instead of code duplication.

* scd/apdu.c (pcsc_error_string): Add an error code.
* scd/scdaemon.c (scd_kick_the_loop): Fix a diagnostic.
--

There was an obvious bug in that the pcsc.count could go below zero
and thus there was no chance to get the context release.  Releasing
and recreating the context is at least under Windows important to get
rit of the PCSC_E_SERVICE_STOPPED.

Also removes a potential problem in holding the reader_table_lock
between calls to apdu_dev_list_start apdu_dev_list_finish.  There is
no need for this.  Instead we bump the pcsc.count.

The reader_table_lock strategy should be reviewed; we may be able to
remove it.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-28 18:21:56 +02:00
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 cc5aa68b63
scd:p15: Fix last commit and improve D-TRUST detection.
* scd/app-p15.c (read_p15_info): Improve D-TRUST card detection.
(do_getattr): Fix faulty code for the last commit.  Append the product
name to MANUFACTURER.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-25 16:35:36 +02:00
Werner Koch 21e3f750bd
scd:p15: Shorten the displayed s/n of RSCS cards
* scd/app-p15.c (get_dispserialno): Add dedicated handling for RSCS.
--

In fact we fix the display of the s/n because the s/n was taken from a
certificate.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-25 14:53:34 +02:00
Werner Koch 9e24f2a45c
scd: Fix PSO_CSV for 512 bit curves
* scd/iso7816.c (iso7816_pso_csv): Use BER-TLV instead of SIMPLE-TLV

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-22 11:04:30 +02:00
Werner Koch 45918813f0
Support log-file option from common.conf for all daemon.
* agent/gpg-agent.c: Include comopt.h.
(main): Read log-file option from common.conf.
(reread_configuration): Ditto.
* dirmngr/dirmngr.c: Include comopt.h.
(main): Read log-file option from common.conf.
(reread_configuration): Ditto.
* kbx/keyboxd.c: Include comopt.h.
(main): Read log-file option from common.conf.
(reread_configuration): Ditto.
* scd/scdaemon.c: Include comopt.h.
(main): Read log-file option from common.conf.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-20 10:50:10 +02:00
Werner Koch 30f90fc857
scd:p15: Support attribute KEY-FPR.
* scd/app-p15.c: Include openpgpdefs.h.
(struct prkdf_object_s): Add fields have_keytime and ecdh_kdf.
(read_p15_info): Set ecdh_kdf.
(keygrip_from_prkdf): Flag that we have the keytime.
(send_keypairinfo): Send the key time only if valid.
(send_key_fpr_line): New.
(send_key_fpr): New.
(do_getattr): Add KEY-FPR.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-16 12:49:37 +02:00
Jakub Jelen 7cbe29c4fb scd: Fix memory leaks.
* scd/apdu.c (apdu_dev_list_start): Free DL.
* scd/app-nks.c (pubkey_from_pk_file): Fix typo in condition.

--

GnuPG-bug-id: 5393
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
2021-04-13 14:21:29 +09:00
Werner Koch ecb9265b8d
scd:p15: Match private keys with certificates also by labels.
* scd/app-p15.c (cdf_object_from_label): New.
(cdf_object_from_certid): Fallback to label matching.
(read_p15_info): Ditto.
(keygrip_from_prkdf): Ditto.  Replace duplicated code by a call to
cdf_object_from_objid.
--

In case there is no certificate for a private key we now also try to
find a certificate using a matching label.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-12 11:41:00 +02:00
Werner Koch 63320ba2f8
scd:nks: Handle APP_READKEY_FLAG_INFO.
* scd/app-nks.c (keygripstr_from_pk_file): Fix ignored error.
(get_nks_tag): New.
(do_learn_status_core): Use it.  Make sure not to mange the
KEYPAIRINFO line if no usage is known.
(do_readkey): Output the KEYPAIRINFO for the keygrip case.
--

Note that this only handles the most common case of providing a
keygrip.  $AUTHKEYID and ODLM are not yet supported.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-08 19:30:51 +02:00
Werner Koch 22fd48e48d
scd: Fix duplicate output of KEYPAIRINFO by readkey command.
* scd/app-help.c (app_help_get_keygrip_string_pk): Make HEXKEYGRIP
parm optional.
* scd/command.c (do_readkey): Remove duplicate output of keypairinfo
lines.
--

Note that this change needs a fix in app-p15 which does not yet handle
the APP_READKEY_FLAG_INFO.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-08 19:27:25 +02:00
NIIBE Yutaka ab66c43575 scd: Fix CCID driver for SCM SPR332/SPR532.
* scd/ccid-driver.c (ccid_vendor_specific_pinpad_setup): New.
(ccid_vendor_specific_setup): Only send CLEAR_HALT.
(ccid_transceive_secure): Each time, use send_escape_cmd.

--

GnuPG-bug-id: 5297
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-04-08 13:41:28 +09:00
Werner Koch ff87f4e578
scd: New flag --reread for LEARN
* scd/command.c (cmd_learn): Add flag --reread.
* scd/app-common.h (struct app_ctx_s): New field need_reset.
* scd/app.c (write_learn_status_core): Set need_reset if we notice an
error after returning from a reread.  Change all callers of card
functions to return GPG_ERR_CARD_RESET so that that app is not anymore
used.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-01 10:31:52 +02:00
Werner Koch e17d3f8660
scd:p15: New flag APP_LEARN_FLAG_REREAD.
* scd/app-p15.c (do_deinit): Factor code out to ...
(release_lists, release_tokeninfo): new.
(read_ef_tokeninfo): Reset all data before reading.
(read_p15_info): Ditto.
(do_learn_status): Implement reread flag.
--

Objects of a card may be protected by a PIN and thus only readble
after a verify command.  This new flag makes it possible to gather the
entire PKCS#15 card info again without a need for a reset (and thus
loss of the verify status).

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-01 10:28:07 +02:00
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 7f91263632
scd:p15: Return labels for keys and certificates.
* scd/app-p15.c (send_certinfo): Extend certinfo.
(do_getattr): Support KEY-LABEL.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-03-30 17:25:24 +02:00
Werner Koch 651c07a730
scd:p15: For CardOS make use of ISO7816_VERIFY_NOT_NEEDED.
* scd/app-p15.c (verify_pin): Take care of verify status.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-03-30 11:43:45 +02:00
Werner Koch de4d3c99aa
scd:p15: Return the creation time of the keys.
* scd/app-p15.c (struct prkdf_object_s): Add keytime and keyalgostr.
(keygrip_from_prkdf): Set them.
(send_keypairinfo): Extend KEYPAIRINFO.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-03-30 10:27:20 +02:00
Werner Koch 592f480117
scd:p15: Make RSA with SHA512 work with CardOS.
* scd/app-p15.c (do_sign): Rewrite.
--

This basically works now but for my test card I need to pass
--cert-digest-algo-512 manually.  Need to check this again and
automate it.  It will also be useful to take the NotBefore timestamp
from the dummy X.509 certificate and use that for the PGP key creation
time.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-03-29 20:36:01 +02:00
Werner Koch a494b29af9
scd:p15: Support ECDSA and ECDH for CardOS.
* scd/iso7816.c (iso7816_pso_csv): New.
* scd/app-help.c (app_help_pubkey_from_cert): Uncompress a point if
needed.

* scd/app-p15.c (CARD_PRODUCT_RSCS): New.
(struct prkdf_object_s): Add fields is_ecc, token_label, and
tokenflags.
(do_deinit): Free new fields.
(cardproduct2str): New.
(read_ef_prkdf): Set new is_ecc flag.
(read_ef_tokeninfo): Store some data and move Tokeninfo diags to ...
(read_p15_info): here.  set the product info here after all data has
been gathered.
(send_keypairinfo): Chnage the way the gpgusage flags are used.
(make_pin_prompt): If the token has a label and the current cert has
no CN, show the label as holder info.
(do_sign): Support ECDSA.  Take care of the gpgusage flags.
(do_decipher): Support ECDH.  Take care of the gpgusage flags.
--

This has been tested with Trusted Object Manager generated cards by
Rohde & Schwarz Cybersecurity.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-03-29 14:49:08 +02:00
NIIBE Yutaka d4e5979c63 scd: Fix PC/SC error handling at apdu_dev_list_start.
* scd/apdu.c (PCSC_E_NO_READERS_AVAILABLE): Add.
(pcsc_error_to_sw): Handle PCSC_E_NO_READERS_AVAILABLE.
(apdu_dev_list_start): Return error correctly.

--

GnuPG-bug-id: 4864
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-03-26 11:24:30 +09:00
Werner Koch 964363e788
scd:p15: Make $SIGNKEY et al determination more fault tolerant.
* scd/app-p15.c (do_getattr): Change how we use gpgUsage to figure out
the keys to use.
2021-03-24 12:27:36 +01:00
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
Werner Koch 85082a83c2
scd:p15: Allow to use an auth object label with cmd CHECKPIN.
* scd/app-p15.c (prepare_verify_pin): Allow for PRKDF to be NULL.
(make_pin_prompt): Ditto.
(verify_pin): Ditto.
(do_check_pin): Allow using the Label to specify a PIN.
--

Note that a label may not work in all cases because we can't select
the protected object's EF first.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-03-18 16:30:10 +01:00
Werner Koch ef29a960bf
scd:p15: New attribute CHV-LABEL.
* scd/app-p15.c (parse_common_obj_attr): Map spaces in the lapel to
underscores.
(read_ef_aodf): Prettify printing of the type.
(do_getattr): New attribute CHV-LABEL
(do_learn_status): Emit CHV-LABEL.
(verify_pin): Distinguish the PIN prompts.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-03-18 11:08:16 +01:00
Werner Koch bf1d7bc369
scd:p15: Implement CHV-STATUS attribute
* scd/command.c (send_status_direct): Return an error.
* scd/app-p15.c (do_learn_status): Emit CHV-STATUS.
(compare_aodf_objid): New.
(do_getattr): Implement CHV-STATUS.
2021-03-16 18:52:38 +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
Valtteri Vuorikoski 8cad11d13b
scd:piv: Improve APT parser compatibility.
* scd/app-piv.c (app_select_piv): Allow for full AID.
--

It appears that SP-800-73-x is not too clear about the format of these
objects. Many current cards (such as the Yubikey 5 series) apparently
have only the PIX in DO 0x4F and only the RID in object 0x79/0x4F.

However, other cards as well as the PivApplet Javacard applet have the
full AID in 0x4F (which actually seems closer to what the standard
says). PivApplet also has the full AID in 0x79/0x4F, but this is
probably incorrect. (Here is a long discussion of the matter from an
OpenSC author:
https://github.com/arekinath/PivApplet/issues/43#issuecomment-772649709)

[Taken from a mail to gnupg-devel date 2021-02-03.]

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-03-11 14:06:51 +01:00
Werner Koch 0f191a0707
scd:p15: Fix faulty removal of a test code change.
--

Fixes-commit: 08b5ac492a
2021-03-10 12:25:42 +01:00
Werner Koch 08b5ac492a
scd:p15: Support special extended usage flags for OpenPGP keys.
* scd/app-p15.c (struct gpgusage_flags_s): New.
(struct prkdf_object_s): Add field gpgusage.
(struct app_local_s): Add field any_gpgusage.
(dump_gpgusage_flags): New.
(read_p15_info): Parse athe gpgusage flags.
(do_getattr): Take care of the gpgusage flags.
--

This features allows to mark keys to be used for OpenPGP.  This is
done by putting additional extended key infos into the certificate
stored on the cards.  Only if any such extended key usage is detected
for a stored certificate this new mode chimes in.

This feature gives the card issuer a high flexibility on how to make
sure certain keys are used with OpenPGP.
2021-03-10 11:03:02 +01:00