Commit Graph

737 Commits

Author SHA1 Message Date
Werner Koch 97b37db144
gpg,gpgsm: Remove compatibility_flags allow-ecc-encr and vsd-allow-encr.
* g10/options.h (COMPAT_VSD_ALLOW_OCB): Remove.
* g10/gpg.c (compatibility_flags): Remove "vsd-allow_ocb".
(main): Alwas set CO_EXTRA_INFO_VSD_ALLOW_OCB.
* g10/keygen.c (keygen_set_std_prefs): Always set OCB feature flag.
* g10/encrypt.c (use_aead): Always OCB also in de-vs mode.
* sm/gpgsm.h (COMPAT_ALLOW_ECC_ENCR): Remove.
* sm/gpgsm.c (compatibility_flags): Remove "allow-ecc-encr".
* sm/encrypt.c (encrypt_dek): Always allow ecc encryption.
* sm/certreqgen.c (proc_parameters): Likewise.
--

Both feature are meanwhile approved in de-vs mode thus there is no
more need for the flags.
2024-05-06 14:34:48 +02:00
Werner Koch cbe0956df0
gpgsm: Increase salt size in pkcs#12 parser.
* sm/minip12.c (parse_bag_encrypted_data): Need 32 bytes.
--

GnuPG-bug-id: 6757
2024-02-05 07:59:02 +01:00
Werner Koch a6eefa9996
gpgsm: Set validity flag in keylisting to n for untrusted root cert.
* sm/keylist.c (list_cert_colon): Map not_trusted to 'n' for non-root
certs like we do for root certs.
--

GnuPG-bug-id: 6841
2023-11-27 12:34:38 +01:00
Werner Koch cdc28c59fe
gpg,gpgsm: Hide password in debug output also for asked passwords.
* g10/call-agent.c (agent_get_passphrase): Call
assuan_begin_confidential and assuan_end_confidential.
* sm/call-agent.c (gpgsm_agent_ask_passphrase): Ditto.
--

GnuPG-bug-id: 6654

The drawback of this solution is that we don't see any IPC lines from
the assuan_transact.  Everything else would require larger changes to
libassuan.
2023-11-14 15:08:20 +01:00
Werner Koch 697d54ceca
gpgsm: Re-introduce the bad passphrase hint for pkcs#12.
* sm/minip12.c (parse_bag_encrypted_data): Set the badpass flag.
(parse_shrouded_key_bag): Ditto.
--
2023-11-14 09:48:04 +01:00
NIIBE Yutaka 3654fee3a4
gpg,sm: Set confidential in assuan communication for password.
* g10/call-agent.c (default_inq_cb): Call assuan_begin_confidential
and assuan_end_confidential.
* sm/call-agent.c (default_inq_cb): Likewise.

--

Cherry pick from master commit of:
	ec1446f944

GnuPG-bug-id: 6654
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2023-11-10 08:55:40 +01:00
Werner Koch 77fb089835
gpgsm: Support ECDSA in de-vs mode.
* common/compliance.h (PK_ALGO_FLAG_ECC18): New.
* common/compliance.c (gnupg_pk_is_allowed): Implement.
* sm/decrypt.c (gpgsm_decrypt): Pass new flag.
* sm/sign.c (gpgsm_sign): Ditto.
* sm/verify.c (gpgsm_verify): Ditto.
--

GnuPG-bug-id: 6802
2023-11-08 17:16:31 +01:00
Werner Koch 7340d4ecd7
gpgsm: Cleanup of legacy variable name use.
* sm/encrypt.c (gpgsm_encrypt): Unify use of RC and ERR.
* sm/sign.c (gpgsm_sign): ditto.
--

Initially we didn't used the gpg_error_t thingy and while migrating
we sometimes used RC and ERR for tracking the error.  This is pretty
error prone and thus we better remove it (after 20 years).
2023-11-08 17:11:30 +01:00
Werner Koch f0e127defb
sm: Flag Brainpool curves as compliant for all other operations.
* sm/fingerprint.c (gpgsm_get_key_algo_info2): Rename to
(gpgsm_get_key_algo_info): this.  Remove the old wrapper.  Adjust all
callers.
* sm/decrypt.c (gpgsm_decrypt): Pass the curve to the compliance
checker.
* sm/encrypt.c (gpgsm_encrypt): Ditto.
* sm/sign.c (gpgsm_sign): Ditto.
* sm/verify.c (gpgsm_verify): Ditto.
--

GnuPG-bug-id: 6253
2023-10-24 14:51:16 +02:00
Werner Koch afacacec12
sm: Flag Brainpool curves as compliant.
* sm/keylist.c (print_compliance_flags): Add arg curve.
(list_cert_colon): Pass curve to the compliance check.
--

GnuPG-bug-id: 6253
2023-10-24 14:22:05 +02:00
Werner Koch 08f0b9ea2e
sm: Another partly rewrite of minip12.c
* sm/minip12.c (struct tlv_ctx_s): Add origbuffer and origbufsize.
Remove pop_count.  Rename offset to length.
(dump_tag_info, _dump_tag_info): Rewrite.
(dump_tlv_ctx, _dump_tlv_ctx): Rewrite.
(tlv_new): Init origbuffer.
(_tlv_peek): Add arg ti.
(tlv_peek): New.
(tlv_peek_null): New.
(_tlv_push): Rewrite.
(_tlv_pop): Rewrite.
(tlv_next): New macro.  Move old code to ...
(_tlv_next): this.  Add arg lno.  Pop remaining end tags.
(tlv_popped): Remove.
(tlv_expect_object): Handle ndef.
(tlv_expect_octet_string): Ditto.
(parse_bag_encrypted_data): Use nesting level to control the inner
loop.
(parse_shrouded_key_bag): Likewise.
(parse_bag_data): Handle surplus octet strings.
(p12_parse): Ditto.

* sm/minip12.c (decrypt_block): Strip the padding.
(tlv_expect_top_sequence): Remove.  Replace callers by
tlv_expect_sequence.

* tests/samplekeys/t6752-ov-user-ff.p12: New sample key.
* tests/samplekeys/Description-p12: Add its description
--

This patch improves the BER parser by simplifying it.  Now tlv_next
pops off and thus closes all containers regardless on whether they are
length bounded or ndef.  tlv_set_pending is now always used to undo
the effect of a tlv_next in a loop condition which was terminated by a
nesting level change.

Instead of using the length as seen in the decrypted container we now
remove the padding and let the BER parser do its work.  This might
have a negative effect on pkcs#12 objects which are not correctly
padded but we don't have any example of such broken objects.

GnuPG-bug-id: 6752
2023-10-24 09:22:13 +02:00
Werner Koch d528de9c6e
sm: Minor robustness fix for a regression test.
* sm/t-minip12.c (run_one_test): Don't hash if we have no parameters
at all.
--

This fix handles the case that an empty result array is returned by
minip12.c
2023-10-17 16:42:33 +02:00
Werner Koch 2e7a08a829
sm: Support import of PKCS#12 encoded ECC private keys.
* sm/import.c (parse_p12): Support ECC import.
--

Although I extended the parser and its test the actual import
missed the required code.

GnuPG-bug-id: 6253
Backported-from-master: 8dfef5197a
2023-10-17 16:40:49 +02:00
Werner Koch 9976285ff0
sm: Support more HMAC algos in the pkcs#12 parser.
* sm/minip12.c (oid_hmacWithSHA1): New.  Also for the SHA-2 algos.
(digest_algo_from_oid): New.
(set_key_iv_pbes2): Add arg digest_algo.
(crypt_block): Ditto.
(decrypt_block): Ditto.
(parse_bag_encrypted_data): Parse the optional prf part and get the
hmac algorithm.
(parse_shrouded_key_bag): Ditto.
(p12_build): Pass SHA1 for digest_algo.

* sm/t-minip12.c (run_one_test): Print failed values in verbose mode.

* tests/samplekeys/nistp256-openssl-self-signed.p12: New.
* tests/samplekeys/Description-p12: Add this one.
* tests/Makefile.am (EXTRA_DIST): Ditto.
--

This supports the modern algorithms, i.e. using SHA256 for the KDF
which is the default in openssl unless the -legacy option is used.

GnuPG-bug-id: 6536
2023-10-06 11:22:59 +02:00
Werner Koch bb157044a0
sm: Improve the octet string cramming for pkcs#12
* sm/minip12.c (need_octet_string_cramming): New.
(tlv_expect_object, tlv_expect_octet_string): Run the test before
cramming.

* sm/minip12.c (ENABLE_DER_STRUCT_DUMPING): New but undefined macro
for debug purposes.
(bag_decrypted_data_p, bag_data_p): Use macro to allow dumping.
--

This bug was exhibited by importing a gpgsm exported EC certificate.

We use an extra test instead of retrying to allow retruning an error
from malloc failure.  And well, for easier reading of the code.

GnuPG-bug-id: 6536
(cherry picked from commit c1f78634ec)
2023-10-05 10:32:57 +02:00
Werner Koch 6d45fcdd3c
agent: Add trustlist flag "de-vs".
* agent/trustlist.c (struct trustitem_s): Add field de_vs.
(read_one_trustfile): Parse it.
(istrusted_internal): Emit TRUSTLISTFLAG status line.
* sm/gpgsm.h (struct rootca_flags_s): Add field de_vs.
* sm/call-agent.c (istrusted_status_cb): Detect the flags.

* sm/sign.c (write_detached_signature): Remove unused vars.
--

Right now this flag has no effect; we first need to specify the exact
behaviour.

GnuPG-bug-id: 5079
(cherry picked from commit a5360ae4c7)
2023-09-07 17:14:10 +02:00
Werner Koch 7e320a89c2
agent: New flag "qual" for the trustlist.txt.
* agent/trustlist.c (struct trustitem_s): Add flag "qual".
(read_one_trustfile): Rename arg "allow_include" to "systrust" and
change callers.  Parse new flag "qual".
(istrusted_internal): Print all flags.
* sm/call-agent.c (istrusted_status_cb): Detect the "qual" flag.
* sm/gpgsm.h (struct rootca_flags_s): Add flag "qualified".
* sm/certchain.c (do_validate_chain): Take care of the qualified flag.
--

(cherry picked from commit 7c8c606061)
2023-09-07 17:12:33 +02:00
Werner Koch 3d3b941ce9
gpgsm: Create binary detached sigs with definite form length octets.
* sm/sign.c: Include tlv.h.
(write_detached_signature): New,
(gpgsm_sign): Fixup binary detached signatures.
--

This helps some other software to verify detached signatures.

(cherry picked from commit 8996b0b655)
2023-09-07 16:44:29 +02:00
Werner Koch 6bdf11f671
gpgsm: Strip trailing zeroes from detached signatures.
* common/ksba-io-support.c: Include tlv.h
(struct reader_cb_parm_s): Add new fields.
(starts_with_sequence): New.
(simple_reader_cb): Handle stripping.
* common/ksba-io-support.h (GNUPG_KSBA_IO_STRIP): New.
(gnupg_ksba_create_reader): Handle the new flag.
* sm/verify.c (gpgsm_verify): Use the new flag for detached
signatures.
--

Note that this works only if --assume-binary is given.  The use case
for the feature is PDF signature checking where the PDF specs require
that the detached signature is padded with zeroes.

(cherry picked from commit 2a13f7f9dc)
2023-09-07 16:38:35 +02:00
Werner Koch cdd6747e1e
gpgsm: Add --always-trust feature.
* sm/gpgsm.h (opt): Re-purpose unused flag always_trust.
(struct server_control_s): Add "always_trust".
(VALIDATE_FLAG_BYPASS): New.
* sm/gpgsm.c (oAlwaysTrust): New.
(opts): Add "--always-trust"
(main): Set option.
* sm/server.c (option_handler): Add option "always-trust".
(reset_notify): Clear that option.
(cmd_encrypt): Ditto.
(cmd_getinfo): Add sub-command always-trust.
* sm/certchain.c (gpgsm_validate_chain): Handle VALIDATE_FLAG_BYPASS.
* sm/certlist.c (gpgsm_add_to_certlist): Set that flag for recipients
in always-trust mode.
--

GnuPG-bug-id: 6559
2023-08-31 11:13:38 +02:00
Werner Koch 87cebf4f8d
gpgsm: Avoid warnings due to enum conversions
* sm/decrypt.c (pwri_parse_pbkdf2): Use int instead of gcry_md_algos.
(pwri_decrypt): Ditto for gcry_cipher_algos.
2023-08-28 08:49:45 +02:00
NIIBE Yutaka 7d8564cf88
sm: Fix use of value NONE in gnupg_isotime_t type.
* common/gettime.h (GNUPG_ISOTIME_NONE): New.
* sm/call-dirmngr.c (gpgsm_dirmngr_isvalid): Use it.
* sm/certlist.c (gpgsm_add_to_certlist): Likewise.
* sm/import.c (check_and_store): Likewise.
* sm/keylist.c (list_cert_colon, list_cert_raw): Likewise.
(list_cert_std): Likewise.
* sm/sign.c (gpgsm_sign): Likewise.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit 05fdaa1737)
2023-08-28 08:39:16 +02:00
Werner Koch a6dad932f4
sm: Complete rewrite of the PKCS#12 parser
* sm/minip12.c: Reworked most of the parser.
(p12_set_verbosity): Add arg debug and change all callers.

* sm/t-minip12.c: New.
* sm/Makefile.am (module_maint): Add it.

* tests/samplekeys/Description-p12: New.
* tests/samplekeys/t5793-openssl.pfx: New from T5793.
* tests/samplekeys/t5793-test.pfx: Ditto.
* tests/samplekeys/Description-p12: Add them.
* tests/Makefile.am (EXTRA_DIST): Add samplekeys.
--

GnuPG-bug-id: 6536
Backported_from: 101433dfb4
Backported_from: 5f694dc0be
2023-07-05 14:21:16 +02:00
Werner Koch 1b4247e010
sm: Remove duplicated code.
* sm/minip12.c (struct tag_info): Change type of length and nhdr.
(dump_tag_info): Adjust.
(parse_tag): Re-implement using the parse_ber_header.
2023-07-05 12:14:35 +02:00
Werner Koch 24a9c77f36
gpgsm: Support SENDCERT_SKI for --call-dirmngr
* sm/call-dirmngr.c (run_command_inq_cb): Support SENDCERT_SKI.

* dirmngr/crlcache.c (crl_cache_insert): Print the CRL name along with
the unknown OID nortice.
2023-07-05 12:11:03 +02:00
Werner Koch bd545346b5
gpgsm: New option --input-size-hint.
* sm/gpgsm.c (oInputSizeHint): New.
(opts): Add "--input-size-hint".
(main): Set option.
* sm/server.c (option_handler): Add option "input-size-hint".
* sm/gpgsm.h (struct server_control_s): Add field input_size_hint.
* sm/encrypt.c (gpgsm_encrypt): Set the toatl file size.
* sm/decrypt.c (gpgsm_decrypt): Ditto.
* sm/sign.c (gpgsm_sign): Ditto.
* sm/verify.c (gpgsm_verify): Ditto.
--

This option allows to set a value for the progress output line.  Note
that as of now there is no other way to set the file size.

GnuPG-bug-id: 6534
2023-07-05 12:04:08 +02:00
Werner Koch ce0d3238f0
gpgsm: Print PROGRESS status lines.
* common/ksba-io-support.c (struct writer_cb_parm_s): Add field
progress.
(struct gnupg_ksba_io_s): Add field is_writer.
(update_write_progress): New.
(base64_writer_cb, plain_writer_cb): Call update_write_progress.
(base64_finish_write): Ditto.
(gnupg_ksba_create_writer): Set is_writer.
(gnupg_ksba_set_progress_cb): New.
(gnupg_ksba_set_total): New.
* common/ksba-io-support.h (gnupg_ksba_progress_cb_t): New type.
* sm/server.c (gpgsm_status2): Return error from statusfp writes.
(gpgsm_progress_cb): New.
* sm/decrypt.c (gpgsm_decrypt): Set progress handler.
* sm/encrypt.c (gpgsm_encrypt): Ditto.
* sm/sign.c (gpgsm_sign): Ditto.
* sm/verify.c (gpgsm_verify): Ditto.
--

GnuPG-bug-id: 6534

Backported-from: c58067415f
Backported-from: a88aeee129
2023-07-05 12:02:33 +02:00
Werner Koch 0d223fa9b0
sm: Emit STATUS_FAILURE for non-implemented commands.
* sm/gpgsm.c (main): Do it here.
2023-05-26 15:55:59 +02:00
Werner Koch 625fb54899
w32: Add missing manifests and set a requestedExecutionLevel.
* agent/gpg-agent.w32-manifest.in: New.
* dirmngr/dirmngr-client-w32info.rc: New.
* dirmngr/dirmngr-client.w32-manifest.in: New.
* dirmngr/dirmngr-w32info.rc: New.
* dirmngr/dirmngr.w32-manifest.in: New.
* dirmngr/dirmngr_ldap-w32info.rc: New.
* dirmngr/dirmngr_ldap.w32-manifest.in: New.
* g10/gpgv-w32info.rc: New.
* g10/gpgv.w32-manifest.in: New.
* kbx/keyboxd.w32-manifest.in: New.
* scd/scdaemon.w32-manifest.in: New.
* sm/gpgsm.w32-manifest.in: New.
--

This avoids the use of the VirtualStore uner Windows.

GnuPG-bug-id: 6503

Backported from 2.4; some manifest files already existed in 2.2 but
not in 2.4
2023-05-25 11:10:21 +02:00
Werner Koch 69b0fa55f6
kbx: Use custom estream buffering
* kbx/keybox-init.c (ll_buffer_size): New var intialized to 128k
(stream_buffers): New var.
(keybox_set_buffersize): New.
(_keybox_ll_open, _keybox_ll_close): Implement buffering.

* sm/gpgsm.c (oKbxBufferSize): New.
(opts): Add option --kbx-buffer-size.
(main): Call keybox_set_buffersize.

* g10/gpg.c: Include keybox.h.
* (oKbxBufferSize): New.
(opts): Add option --kbx-buffer-size.
(main): Call keybox_set_buffersize.
--

Commit message from 2.4:

Running a test on Windows using a pubring.kbx with
Total number of blobs:     2098
              openpgp:     1294
                 x509:      803
and a size of 42MiB with

gpgsm -k --with-validation --disable-dirmngr --kbx-buffer-size N >nul

gives these performance figures using procmon

| N(k) | file events | time(s) |
|------+-------------+---------|
|    0 |     4900000 |      86 |
|   16 |     2456000 |      58 |
|   32 |     1233000 |      43 |
|   64 |      622000 |      37 |
|  128 |      317000 |      32 |
|  256 |      164000 |      31 |
|  512 |       88000 |      30 |

Using _open instead of CreateFile give the same number of file events
but increased the time slight by one second for the measured buffer
size of 64k and 128k.   Benchmarks for gpg have not been conducted.
2023-05-10 10:07:32 +02:00
Werner Koch b73ced9386
gpgsm: Cache the non-existence of the policy file.
* sm/certchain.c (check_cert_policy): Add simple static cache.
--

It is quite common that a policy file does not exist.  Thus we can
avoid the overhead of trying to open it over and over again just to
assert that it does not exists.
2023-05-10 09:52:33 +02:00
Werner Koch fc351de879
gpg,gpgsm: Extend the use of allow-ecc-encr and vsd-allow-ocb
* g10/keygen.c (keygen_set_std_prefs): Set OCB only with VSD
compatibility flag.
* sm/certreqgen.c (proc_parameters): All ECC generation only with
allow-ecc-encr.
--
2023-03-24 13:50:37 +01:00
Werner Koch ffc2522855
gpgsm: Improve cert lookup callback from dirmngr.
* sm/gpgsm.h (FIND_CERT_ALLOW_AMBIG): New.
(FIND_CERT_WITH_EPHEM): New.
* sm/certlist.c (gpgsm_find_cert): Replace arg allow_ambiguous by a
generic flags arg.  Implement the new flag FIND_CERT_WITH_EPHEM.
* sm/call-dirmngr.c (inq_certificate): Return also ephemeral marked
certs.
--

The dirmngr may need to get a certificate from gpgsm's store in the
course of verifying a CRL.  In some cases the certificate is still
marked as epehemeral - this needs to be returned as well.

This _may_ also fix
GnuPG-bug-id: 4436
2023-02-26 19:11:27 +01:00
Werner Koch 332098a0f7
sm: Fix issuer certificate look error due to legacy error code.
* sm/certchain.c (find_up): Get rid of the legacy return code -1 and
chnage var name rc to err.
(gpgsm_walk_cert_chain): Change var name rc to err.
(do_validate_chain): Get rid of the legacy return code -1.

* sm/keydb.c (keydb_search): Replace return code -1 by
GPG_ERR_NOT_FOUND.
(keydb_set_cert_flags): Replace return code -1 by GPG_ERR_NOT_FOUND.
* sm/certchain.c (find_up_search_by_keyid): Ditto.
(find_up_external, find_up, find_up_dirmngr): Ditto.
(gpgsm_walk_cert_chain): Ditto.
(get_regtp_ca_info): Ditto.
* sm/certlist.c (gpgsm_add_to_certlist): Ditto.
(gpgsm_find_cert): Ditto.
* sm/delete.c (delete_one): Ditto.
* sm/export.c (gpgsm_export): Ditto.
(gpgsm_p12_export): Ditto.
* sm/import.c (gpgsm_import_files): Ditto.
* sm/keylist.c (list_cert_colon): Ditto.
(list_internal_keys): Ditto.
* sm/sign.c (add_certificate_list): Ditto.

--

This bug was detected while fixing
GnuPG-bug-id: 4757
Backported-from-master: 473b83d1b9

Some extra code has been taken from
commit ed6ebb696e
2023-02-24 17:46:39 +01:00
Damien Goutte-Gattat via Gnupg-devel 6f276fc17b
sm: Support generation of card-based ECDSA CSR.
* sm/call-agent.c (gpgsm_scd_pksign): Identify type of signing key
and format resulting S-expression accordingly.
--

Current GpgSM implementation assumes card-based keys are RSA keys.
This patch introduces support for ECDSA keys.

GnuPG-bug-id: 4092
Signed-off-by: Damien Goutte-Gattat <dgouttegattat@incenp.org>
(cherry picked from commit 74e9b579ca)

- Removed already applied changes from the original commit.
- Allow for SHA384 and SHA512

Signed-off-by: Werner Koch <wk@gnupg.org>
2023-01-13 10:31:20 +01:00
Werner Koch 4d5126349d
sm: Fix regression due to the new ECC cert generation
* sm/certreqgen.c (create_request): Also set SIGKEYLEN.
--

Fixes-commit: ed62b74a17
2023-01-13 09:43:25 +01:00
Werner Koch f2d25b04d7
sm: Fix compliance checking for ECC signature verification.
* common/compliance.c (gnupg_pk_is_compliant): Also consider the
gcrypt vids for ECDSA et al.
(gnupg_pk_is_allowed): Ditto.
* sm/verify.c (gpgsm_verify): Consider the curve.  Print a compliance
notice for a non-compliant key.

* sm/certchain.c (gpgsm_validate_chain): Silence the "switching to
chain model".
--

Backported-from-master: 338a5ecaa1
2023-01-12 20:58:21 +01:00
Werner Koch 9a012d2c53
Merge branch 'STABLE-BRANCH-2-2.40' into STABLE-BRANCH-2-2
--
2022-12-23 12:25:44 +01:00
Werner Koch d9271d594b
gpgsm: Silence the "non-critical certificate policy not allowed".
* sm/certchain.c (check_cert_policy): Print non-critical policy
warning only in verbose mode.

(cherry picked from commit 4f1b9e3abb)
2022-12-06 08:25:41 +01:00
Werner Koch be02365c3f
gpgsm: Change default algo to AES-256.
* sm/gpgsm.c (DEFAULT_CIPHER_ALGO): Change.
2022-11-30 11:01:25 +01:00
Werner Koch 4f43b6fdae
gpgsm: Fix colon outout of ECC encryption certificates
* sm/keylist.c (print_capabilities): Add arg algo and use it to check
for ECC capabilities.
(list_cert_colon): Call with algo.
--

This will mark certificates with only keyAgreement usage correctly in
the --with-colons listing.

(cherry picked from commit f5c3f13609)
2022-11-15 16:32:24 +01:00
Werner Koch 7c3aeb2a57
gpgsm: Support signing using ECDSA.
* sm/gpgsm.h (struct certlist_s): Add helper field pk_algo.
* sm/sign.c (gpgsm_sign): Store the public key algo.  Take the hash
algo from the curve.  Improve diagnostic output in verbose mode.
--

GnuPG-bug-id: 4098, 6253
Signed-off-by: Werner Koch <wk@gnupg.org>
Backported-from-master: f44d395bdf
2022-11-15 10:47:25 +01:00
Werner Koch 4aed853f2b
gpgsm: Support verification of nistp521 signatures.
* sm/certcheck.c (do_encode_md): Take care of nistp521.
--

This curve is a bit odd in that it does not match a common hash digest
length.  We fix that here for just this case instead of writing more
general code to support all allowed cases (i.e. hash shorter than Q).

Signed-off-by: Werner Koch <wk@gnupg.org>
Backported-from-master: 596212e71a
2022-11-15 10:46:03 +01:00
Werner Koch 88335b2d5b
gpgsm: Cleanup the use of GCRY_PK_ECC and GCRY_PK_ECDSA.
* common/sexputil.c (pubkey_algo_to_string): New.
* sm/certcheck.c (do_encode_md): Replace GCRY_PK_ECDSA by GCRY_PK_ECC.
* sm/certreqgen-ui.c (check_keygrip): Add all ECC algorithms.
* sm/gpgsm.c (our_pk_test_algo): Also allow EdDSA.
* sm/verify.c (gpgsm_verify): Map ECC algo to ECDSA.  Use new pubkey
algo name function

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 34b628db46)
2022-11-14 18:16:49 +01:00
Werner Koch 266a6602f0
gpgsm: Some more ECC support backported.
* sm/certcheck.c (gpgsm_check_cert_sig): Map ECDSA OIDs.
* sm/misc.c (transform_sigval): Add ECC support.
--

GnuPG-bug-id: 6253
2022-11-14 17:23:06 +01:00
Werner Koch 0a355b2fe7
gpg: Add compatibility flag "vsd-allow-ocb"
* common/compliance.h (enum gnupg_co_extra_infos): New.
* common/compliance.c (vsd_allow_ocb): New.
(gnupg_cipher_is_compliant): Allow OCB if flag is set.
(gnupg_cipher_is_allowed): Ditto.
(gnupg_set_compliance_extra_info): Change to take two args.  Adjust
callers.
* g10/gpg.c (compatibility_flags): Add "vsd-allow-ocb".
(main): And set it.
* g10/options.h (COMPAT_VSD_ALLOW_OCB): NEw.
--

This is a temporary flag until the new mode has been evaluated and can
always be enabled.

GnuPG-bug-id: 6263
2022-10-31 17:23:41 +01:00
Werner Koch aa397fdcdb
gpgsm: Also announce AES256-CBC in signatures.
* sm/sign.c (gpgsm_sign): Add new capability.
--

It might be better to have this.  No concrete bug report, though.
2022-10-28 15:21:26 +02:00
Werner Koch fd0ddf2699
gpgsm: New compatibility flag "allow-ecc-encr".
* sm/gpgsm.h (COMPAT_ALLOW_ECC_ENCR): New.
* sm/gpgsm.c (compatibility_flags): Add new flag.
* sm/encrypt.c (encrypt_dek): Allw ECC only if flag is set.
--

ECC encryption was not part of the original VS evaluation.  Until this
has been re-evaluated we hide this feature behind this flag.

GnuPG-bug-id: 6253
2022-10-28 15:19:19 +02:00
Werner Koch 28467f3735
sm: Support encryption using ECDH keys.
* sm/decrypt.c (hash_ecc_cms_shared_info): Make global.
* sm/encrypt.c (ecdh_encrypt): New.
(encrypt_dek): Add arg PK_ALGO and support ECDH.
(gpgsm_encrypt): Pass PK_ALGO.
--

Note: This has only been tested with a messages created and decrypted
by GnuPG.

GnuPG-bug-id: 4098
Signed-off-by: Werner Koch <wk@gnupg.org>
Backported-from-master: d5051e31a8
GnuPG-bug-id: 6253
2022-10-28 13:01:09 +02:00
Werner Koch d770715e15
gpgsm: Allow ECC encryption keys with just keyAgreement specified.
* sm/certlist.c (cert_usage_p): Allow keyAgreement for ECC.
* sm/fingerprint.c (gpgsm_is_ecc_key): New.
--

For ECC encryption keys keyAgreement is the keyUsage we want.

GnuPG-bug-id: 6253
2022-10-28 12:17:46 +02:00