Commit Graph

8986 Commits

Author SHA1 Message Date
Werner Koch 9bc9d0818b
doc: Typo fixes in code comments
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-05-04 14:55:34 +02:00
Werner Koch 5da6925a33
sm: Add support to export ECC private keys.
* sm/minip12.c [TEST]: Remove test code.  Include util.h, tlv.h. and
openpgpdefs.h.  Remove the class and tag constants and replace them by
those from tlv.h.
(builder_add_oid, builder_add_mpi): New.
(build_key_sequence): Rename to ...
(build_rsa_key_sequence): this.
(build_ecc_key_sequence): New.
(p12_build): Call RSA or ECC builder.
(p12_raw_build): Ditto.
* sm/export.c (gpgsm_p12_export): Use correct armor header for ECC.
(sexp_to_kparms): Support ECC.

* sm/t-minip12.c: New to replace the former TEST code in minip12.h.
--

GnuPG-bug-id: 4921
2020-04-27 19:54:39 +02:00
Werner Koch 5ea878274e
common: Add an easy to use DER builder.
* common/tlv-builder.c: New.
* common/tlv.c: Remove stuff only used by GnuPG 1.
(put_tlv_to_membuf, get_tlv_length): Move to ...
* common/tlv-builder.c: here.
* common/tlv.h (tlv_builder_t): New.
--

Such code should actually go into libksba and we will eventually do
that.  However, for now it is easier to keep it here.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-24 15:37:48 +02:00
Werner Koch c03f80dc19
sm: Minor debug output format changes.
--
2020-04-23 10:00:18 +02:00
Werner Koch 95d83cf906
sm: Support decryption of ECDH data.
* sm/decrypt.c: Include tlv.h.
(string_from_gcry_buffer): New.
(hash_ecc_cms_shared_info): New.
(ecdh_decrypt): New.
(prepare_decryption): Support ECDH.  Add arg pk_algo.
(gpgsm_decrypt): Lift some variables from an inner code block.
--

Note: This has only been tested with a single messages created by
OpenSSL and taken from the Mozilla bug tracker.  In particular the
code to included UserKeyingMaterial (ukm) has not been tested.

GnuPG-bug-id: 4098
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-23 09:59:13 +02:00
Werner Koch 5d015b38eb
common: Add functions to help create DER objects.
* common/tlv.c (put_tlv_to_membuf): New.
(get_tlv_length): New.
* common/tlv.h: Include membuf.h.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-23 09:51:15 +02:00
Werner Koch 8dfef5197a
sm: Support import of PKCS#12 encoded ECC private keys.
* sm/minip12.c: Include ksba.h.
(oid_pcPublicKey): New const.
(parse_bag_data): Add arg 'r-curve'.  Support parsing of ECC private
keys.
(p12_parse): Add arg 'r_curve'.
* sm/import.c (parse_p12): Support ECC import.
--

GnuPG-bug-id: 4921
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-21 21:05:39 +02:00
Werner Koch a6d2f31337
sm: Replace some debug message by log_error or log_info
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-21 21:05:32 +02:00
Werner Koch f05a32e5c9
scd:nks: Allow retrieving certificates from a Signature Card v.20
* scd/app-nks.c: Major rework to support non-RSA cards.
--

This is a fist step so support this ECC card.  The code has been
reworked while taking care that old cards should keep on working.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-17 16:09:58 +02:00
Werner Koch 3633ca6e21
scd: Detect missing card in "getinfo all_active_apps".
* scd/app.c (send_card_and_app_list): Detect no app case.
--

This is a minor nug fix to return a better error message.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-17 16:09:54 +02:00
Werner Koch bbb7edb880
sm: Always allow authorityInfoAccess lookup if CRLs are also enabled.
* sm/certchain.c (find_up): Disable external lookups in offline mode.
Always allow AKI lookup if CRLs are also enabled.
--

GnuPG-bug-id: 4898
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-16 19:05:49 +02:00
Werner Koch f5efbd5a11
sm: Lookup missing issuers first using authorityInfoAccess.
* sm/call-dirmngr.c (gpgsm_dirmngr_lookup): Add optional arg URL and
adjust all callers.
* sm/certchain.c (oidstr_caIssuers): New.
(struct find_up_store_certs_s): Add additional fields.
(find_up_store_certs_cb): Store the fingerprint.
(find_up_via_auth_info_access): New.
(find_up): Try the AIA URI first.
--

Note that --auto-issuer-key-retrieve is required to use that.

GnuPG-bug-id: 4898
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-16 18:03:13 +02:00
Werner Koch 7f1be1ea52
dirmngr: Allow http URLs with "LOOKUP --url"
* dirmngr/crlfetch.c (read_cert_via_http): New.
(fetch_cert_by_url): Implement http scheme.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-16 17:53:27 +02:00
Werner Koch cec397e002
gpg: Make AEAD modes subject to compliance checks.
* g10/decrypt-data.c (decrypt_data): Move aead algo detection up.
--

Note that the AEAD modes are not yet approved for --compliance=de-vs

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-16 08:52:29 +02:00
Werner Koch 5c47e7825b
indent: Some typo and indentation changes for gpg.
--
2020-04-15 22:23:10 +02:00
Werner Koch df0edaf91a
gpg: Fix broken setting of AEAD algo.
* g10/main.h (DEFAULT_AEAD_ALGO): Set to OCB.
--

With the old code and using libgcrypt 1.9 would have switched from the
high performance OCB to the ugly EAX mode.  We are free software, we
are OCB.
2020-04-15 22:21:46 +02:00
Werner Koch c0d5c67354
sm,dirmngr: Restrict allowed parameters used with rsaPSS.
* sm/certcheck.c (extract_pss_params): Check the used PSS params.
* dirmngr/crlcache.c (finish_sig_check): Ditto.
* dirmngr/validate.c (check_cert_sig): Ditto.
--

GnuPG-bug-id: 4538

# ------------------------ >8 ------------------------
See
https://www.metzdowd.com/pipermail/cryptography/2019-November/035449.html

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-15 11:06:59 +02:00
NIIBE Yutaka 50b320952e regexp: Fix generation of _unicode_mapping.c.
* configure.ac (AWK_HEX_NUMBER_OPTION): Detect GNU Awk.
* regexp/Makefile.am: Use AWK_HEX_NUMBER_OPTION.
* regexp/parse-unidata.awk: Don't use strtonum.

GnuPG-bug-id: 4915
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-04-15 14:10:08 +09:00
Werner Koch 6c28d9343e
sm: Support rsaPSS verification also for CMS signatures.
* sm/certcheck.c (gpgsm_check_cert_sig): Factor PSS parsing out to ...
(extract_pss_params): new.
(gpgsm_check_cms_signature): Implement PSS.
--

GnuPG-bug-id: 4538
2020-04-14 15:46:04 +02:00
Werner Koch ba34f14153
dirmngr: Support rsaPSS also in the general validate module.
* dirmngr/validate.c (hash_algo_from_buffer): New.
(uint_from_buffer): New.
(check_cert_sig): Support rsaPSS.
* sm/certcheck.c (gpgsm_check_cert_sig): Fix small memory leak on
error.
--

Yes, I know that there is a lot of code duplication.  In fact some of
the code is ugly and it would be better if we enhance Libgcrypt to
guarantee that returned memory buffers via gcry_sexp_extract_param are
allways Nul terminated and we should also enhance that function to
directly extract into an unsigned int or char *.

GnuPG-bug-id: 4538
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-09 13:05:55 +02:00
Werner Koch b45ab0ca08
sm,dirmngr: Support rsaPSS signature verification.
* sm/certcheck.c (hash_algo_from_buffer): New.
(uint_from_buffer): New.
(gpgsm_check_cert_sig): Handle PSS.
* dirmngr/crlcache.c (hash_algo_from_buffer): New.
(uint_from_buffer): New.
(start_sig_check): Detect PSS and extract hash algo.  New arg to
return a PSS flag.
(finish_sig_check): New arg use_pss.  Extract PSS args and use them.
(crl_parse_insert): Pass use_pss flag along.
--

GnuPG-bug-id: 4538
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-09 12:20:19 +02:00
Werner Koch 5d5b70ae0f
common: New function to map hash algo names.
* common/sexputil.c (hash_algo_to_string): New.
--

Libgcrypt expects lowercase names and it is cumbersome to downcase
those retrieved via gcry_md_algo_name.  It is easier and also faster
to use a dedicated map function.
2020-04-09 12:20:19 +02:00
Werner Koch bfedc760ef
scd:p15: Return a display S/N via Assuan.
* scd/app-p15.c (make_pin_prompt): Factor some code out to ...
(get_dispserialno): this.
(do_getattr): Use new fucntion for a $DISPSERIALNO.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-09 12:20:18 +02:00
NIIBE Yutaka fd79cadf7b gpg: ECDH: Accept longer padding.
* g10/pubkey-enc.c (get_it): Remove check which mandates shorter
padding.

--

According to the section 8 of RFC 6637, the sender MAY use 21 bytes of
padding for AES-128 to provide 40-byte "m".

Reported-by: Metin Savignano
GnuPG-bug-id: 4908
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-04-08 09:29:43 +09:00
Werner Koch 9ec8d984be
scd:p15: Show a pretty PIN prompt.
* scd/app-p15.c (struct prkdf_object_s): New fields common_name and
serial_number.
(release_prkdflist): Free them.
(keygrip_from_prkdf): Parse cert and set them.
(any_control_or_space): New.
(make_pin_prompt): New.
(verify_pin): Construct a pretty PIN prompt.
(do_sign): Remove debug output.
--

The D-Trust card has the SerialNumber part of the Subject printed on
the front matter, we assume this is also possible with other cards and
thus we show this as serial number.

The holder of the card is also extracted from the card's subject.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-07 20:38:15 +02:00
Werner Koch f28795b615
scd: Return GPG_ERR_BAD_PIN on 0x63Cn status word.
* scd/iso7816.c (map_sw): Detect 0x63Cn status code.
--

I really wonder when that got lost and we ended up with a simple card
error.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-07 19:09:27 +02:00
Werner Koch 60d018f6a9
scd: Factor common PIN status check out.
* scd/iso7816.h (ISO7816_VERIFY_ERROR): New.
(ISO7816_VERIFY_NO_PIN): New.
(ISO7816_VERIFY_BLOCKED): New.
(ISO7816_VERIFY_NULLPIN): New.
(ISO7816_VERIFY_NOT_NEEDED): New.
* scd/iso7816.c (iso7816_verify_status): New.
* scd/app-nks.c (get_chv_status): Use new function.
* scd/app-piv.c (get_chv_status): Ditto.
(verify_chv): Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-07 18:26:00 +02:00
Werner Koch 5ec1f66793
doc: Typo fix in code comment.
--
2020-04-07 16:03:21 +02:00
Werner Koch 42ddcc87f4
scd:p15: Fix decrypt followed by sign problem for D-Trust cards.
* scd/iso7816.c (iso7816_select_mf): New.
* scd/app-p15.c (card_product_t): New.
(struct app_local_s): Add field 'card_product'.
(read_ef_tokeninfo): Detect D-Trust card.
(prepare_verify_pin): Switch to D-Trust AID.
(do_decipher): Restore a SE for D-TRust cards.  Chnage the passing
indicator to 0x81.
--

Using what I learned from a USB trace running the Governikus Signer
Software on Windows this fixes the left over problem with the new
D-Trust card support.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-07 16:03:11 +02:00
NIIBE Yutaka 7ee2a9687d tools: Use internal regexp routines.
* tools/gpg-check-pattern.c: Use jimregexp.h.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-04-06 09:38:13 +09:00
Werner Koch aa60645b99
scd:p15: Emit MANUFACTURER, $ENCRKEYID, $SIGNKEYID.
* scd/app-p15.c (read_ef_tokeninfo): Store manufacturer_id.
(do_getattr): Implement MANUFACTURER, $ENCRKEYID and $SIGNKEYID.
(send_keypairinfo): Also print usage flags.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-03 11:21:32 +02:00
Werner Koch 15352b0eac
gpg,card: Use the new MANUFACTURER attribute.
* tools/gpg-card.h (struct card_info_s): Add manufacturer fields.
* tools/card-call-scd.c (release_card_info): Release them.
(learn_status_cb): Parse MANUFACTURER attribute.
* tools/gpg-card.c (get_manufacturer): Remove.
(list_card): Use the new attribute.
* g10/call-agent.h (struct agent_card_info_s): Add manufacturer fields.
* g10/call-agent.c (agent_release_card_info): Release them.
(learn_status_cb): Parse MANUFACTURER attribute.
* g10/card-util.c (get_manufacturer): Remove.
(current_card_status): Use new attribute.
--

This does away with the duplicated OpenPGP vendor tables; they are now
at a better place (app-openpgp.c).

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-03 10:44:32 +02:00
Werner Koch 541a6a903e
scd:openpgp: New attribute "MANUFACTURER".
* scd/app-openpgp.c (get_manufacturer): New..
(do_getattr): Add new attribute "MANUFACTURER".
(do_learn_status): Always print it.
--

This will make it easy to maintain the list of OpenPGP vendors at just
one place.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-03 09:56:56 +02:00
NIIBE Yutaka ba247a114c gpg: Add regular expression support.
* AUTHORS, COPYING.other: Update.
* Makefile.am (SUBDIRS): Add regexp sub directory.
* configure.ac (DISABLE_REGEX): Remove.
* g10/Makefile.am (needed_libs): Add libregexp.a.
* g10/trustdb.c: Remove DISABLE_REGEX support.
* regexp/LICENSE, regexp/jimregexp.c, regexp/jimregexp.h,
  regexp/utf8.c, regexp/utf8.h: New from Jim Tcl.
* regexp/UnicodeData.txt: New from Unicode.
* regexp/Makefile.am, regexp/parse-unidata.awk: New.
* tests/openpgp/Makefile.am: Remove DISABLE_REGEX support.
* tools/Makefile.am: Remove DISABLE_REGEX support.

GnuPG-bug-id: 4843
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-04-03 15:30:08 +09:00
Werner Koch 61c5b0767f
scd:p15: Implement do_with_keygrip and capabilities.
* scd/app-p15.c (prepare_verify_pin): Allow use without an AODF.
(verify_pin): Ditto.
(do_with_keygrip): Implement capability restrictions.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-02 14:23:26 +02:00
Werner Koch 8149742ddf
scd:p15: Rename some variables and functions for clarity.
* scd/app-p15.c: Rename keyinfo to prkdf.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-02 12:40:09 +02:00
Werner Koch 5b7b42e2b2
scd: Use Gcrypt usage constants for the do_with_keygrip capabilities.
* scd/command.c (cmd_keyinfo): Use Gcrypt constants for CAP.
* scd/app-openpgp.c (do_with_keygrip): Adjust for them.
* scd/app-piv.c (do_with_keygrip): Ditto.
--

That makes it easier to read.  An open question is whether we should
allow several capabilities and whether they are the ORed or ANDed.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-02 11:54:01 +02:00
NIIBE Yutaka 2ccbcfec12 scd: New command DEVINFO.
* scd/app.c (notify_cond): New condition variable.
(app_send_devinfo, app_wait): New.
(scd_update_reader_status_file): Kick NOTIFY_COND.
(initialize_module_command): Initialize NOTIFY_COND.
* scd/command.c (struct server_local_s):  Add watching_status.
(cmd_devinfo): New.
(register_commands): Add DEVINFO command.
(send_client_notifications): Write status change to DEVINFO channel.
* scd/scdaemon.h (app_wait, app_send_devinfo): New.

GnuPG-bug-id: 4864
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-04-02 15:39:26 +09:00
Werner Koch 29f8f52bf8
scd:p15: Cache the PIN.
* scd/app-p15.c (struct prkdf_object_s): Add flag pin_verified.
(verify_pin): Make use of it.
--

Theee is still a problem with the APDUs we send: Switching between
signing and decryption does work but not in the other way.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-01 20:31:21 +02:00
Werner Koch 132d82c158
scd:p15: Run a keygrip_from_prkdf before verify_pin
* scd/app-p15.c (do_sign): Move keygrip_from_prkdf before PIN
verification.
(do_decipher): Add keygrip_from_prkdf.
--

This is required because that function may change the current file
which is set by prepare_verify_pin right before MSE.  HAs alredy been
done on the backport to 2.2

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-01 17:49:14 +02:00
Werner Koch ca4391399c
scd:p15: Support decryption with CardOS 5 cards.
* scd/app-p15.c (do_decipher): New.
--

tested using the D-TRUSt card and a SCR3310 reader.  The Kobil KAAN
Advanced, I used for the signing tests could not be used because it
supports only Short APDU Level exchange.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-01 14:07:56 +02:00
Werner Koch 375b145487
scd:p15: Factor PIN verification out to a new function.
* scd/app-p15.c (do_sign): Factor code out to ...
(prepare_verify_pin, verify_pin): new functions.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-01 11:58:08 +02:00
Werner Koch c7ff8c59b9
sm: Fix a warning in an es_fopencooie function.
* sm/certdump.c (format_name_writer): Take care of a flush request.
--

We won't see a flush here so that fix does not solve a real bug but we
want to be correct.  Note that this function seems to predate the
es_fopenmem function and thus in master (2.3) we should replace it
entirely.

GnuPG-bug-id: 4495
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from 2.2 commit 8d0d61aca3)
2020-04-01 09:58:11 +02:00
Werner Koch 103c1576b7
scd:p15: Support signing with CardOS 5 cards.
* scd/app-help.c (app_help_get_keygrip_string_pk): Add optional arg
r_pkey and change all callers.
(app_help_get_keygrip_string): Ditto.
* scd/app-p15.c (struct cdf_object_s): Use bit flags
(struct aodf_object_s): Ditto.  Add field 'fid'.
(struct prkdf_object_s): Ditto.  Add fields keygrip, keyalgo, and
keynbits.
(parse_certid): Allow a keygrip instead of a certid aka keyref.
(read_ef_aodf): Store the FID.
(keygripstr_from_prkdf): Rename to ...
(keygrip_from_prkdf): this.  Remove arg r_gripstr and implement cache.
Change callers to directly use the values from the object.  Also store
the algo and length of the key ion the object.
(keyref_from_keyinfo): New. Factored out code.
(do_sign): Support SHA-256 and >2048 bit RSA keys.
(do_with_keygrip): New.
(app_select_p15): Register new function.
--

This has been tested with a D-Trust card featuring 3072 bit keys.
Note that non-repudiation key for a qualified signature does not yet
work because we do not yet support rsaPSS padding.  Thus a gpgsm
--learn shows a couple of Bad Signature errors for this key.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-31 19:55:15 +02:00
Werner Koch 2bdd4fc7b6
scd:p15: Read certificates in extended mode.
* scd/app-p15.c (readcert_by_cdf): Allow reading in extended mode.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-31 11:57:19 +02:00
Werner Koch c9ad81070a
scd: Add function for binary read in extended mode.
* scd/iso7816.c (iso7816_read_binary): Factor code out to ...
(iso7816_read_binary_ext): new function.  Add arg extended_mode.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-31 11:53:36 +02:00
Werner Koch c29603fa9a
scd:p15: Improve diagnostics
--

This removes almost all log_debug calls and uses opt.verbose and
log_info to show card information.  Also avoid too long and thus
harder to read lines.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-31 11:20:59 +02:00
Werner Koch 8a68d497f1
scd:p15: Detect CardOS 5 cards and print some basic infos.
* scd/app-p15.c (read_ef_odf): Detect the home_DF on the fly.  Silence
the garbage warning for null bytes.
(print_tokeninfo_tokenflags): New.
(read_ef_tokeninfo): Print manufacturer, label, and flags.
(app_select_p15): No need to use the app_get_slot macro.
(CARD_TYPE_CARDOS_50): New const.
(card_atr_list): Detect CardOS 5.0
--

The card under test is a "Test-Signaturkarte D-TRUST Card 3.1" for a
mere 49 Euro and no specs available.  D-Trust is a branch of the
German Bundesdruckerei.  Compare that to Telesec and Yubikey who have
always been nice enough to send bunches of sample cards without a need
to wade through lots of forms and not even asking for money.  Guess
which cards I prefer.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-30 21:19:24 +02:00
Werner Koch c5c21a0646
agent: Print an error if gpg-protect reads the extended key format.
* agent/protect-tool.c (read_key): Detect simple extended key format.
--

This is a quick hack to get a useful error messages.  The real fix is
to replace the protect tool by a more useful new tool.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-30 17:27:42 +02:00
Werner Koch 9c5c7c6f60
sm: Fix possible NULL deref in error messages of --gen-key.
* sm/certreqgen.c: Protect printing the liniernur in case of !R.
--

GnuPG-bug-id: 4895
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-30 17:16:30 +02:00