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mirror of git://git.gnupg.org/gnupg.git synced 2024-12-22 10:19:57 +01:00

10579 Commits

Author SHA1 Message Date
Werner Koch
b48476bbef
gpg: Prepare to use the fingerprint as fixed-info for Kyber.
* g10/pubkey-enc.c (get_it): Use algo and fingerprint for the
fixed-info.  Keep a testing mode.
* g10/options.h (COMPAT_T7014_OLD): New.
* g10/gpg.c (compatibility_flags): Add "t71014-old" flag.
--

GnuPG-bug-id: 6815
2024-04-12 11:33:07 +02:00
Werner Koch
6f94fe01a9
gpg: Simplify the pk_encrypt function interface.
* g10/pkglue.c (pk_encrypt): Remove superfluous arguments and reanem
variable rc to err.
* g10/encrypt.c (write_pubkey_enc): Adjust for this change.
--

We used to pass PK as well as information which could be taken
directly from PK.  Using ERR instead of RC is just for more uniform
naming of variables.
2024-04-12 10:43:12 +02:00
Werner Koch
813f8d1b8e
gpg: Changed internal data format for Kyber.
* g10/packet.h (PKT_pubkey_enc): Add field seskey_algo.
(struct pubkey_enc_list): Ditto.
* g10/misc.c (pubkey_get_nenc): Change value for Kyber from 4 to 3.
* g10/parse-packet.c (parse_pubkeyenc): Store the Kyber algo in the
new field and adjust data.  Do not store the length byte in data[2].
* g10/build-packet.c (do_pubkey_enc): Take the session algo for Kyber
from the new field.
* g10/encrypt.c (write_pubkey_enc): Ses the seskey_algo.
* g10/mainproc.c (proc_pubkey_enc): Copy it.
* g10/pubkey-enc.c (get_it): Support Kyber decryption.

* g10/seskey.c (encode_session_key): Handle Kyber different from ECDH.
--

Having always the single byte in the packet data than to store and
retrieve it from an MPI is much easier.  Thus this patch changes the
original internal format.  With this chnages decryption of the slighly
modified test data works now. See the bug tracker for test data.

GnuPG-bug-id: 6815
2024-04-11 15:56:21 +02:00
Werner Koch
61717fb0a7
agent: Add more diagnostics to PQC decryption.
* agent/pkdecrypt.c (composite_pgp_kem_decrypt): Use %d for
correctness.  Add error diagnostics and one extra check.
--

GnuPG-bug-id: 7014
2024-04-11 15:48:16 +02:00
Werner Koch
869d1df270
indent: Re-indent a function
--
2024-04-11 11:33:37 +02:00
NIIBE Yutaka
f2fd4f1a9e
agent: Rename the function using the word "composite"
* agent/pkdecrypt.c (composite_pgp_kem_decrypt): Rename.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2024-04-11 15:30:27 +09:00
NIIBE Yutaka
172d53d636
agent: Fix PQC decryption.
* agent/pkdecrypt.c (agent_hybrid_pgp_kem_decrypt): Change the format
of SEXP in the protocol for symmetric cipher algorithm identifier.

--

GnuPG-bug-id: 7014
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2024-04-11 15:30:16 +09:00
Werner Koch
6737e07a9b
doc: Move keyformat.txt to here.
--
2024-04-11 08:27:53 +02:00
Todd Zullinger via Gnupg-devel
87025e5da6
doc: Fix a few typos in agent/keyformat.txt
--

Signed-off-by: Todd Zullinger <tmz@pobox.com>
2024-04-11 08:17:20 +02:00
Werner Koch
84ddb24e30
gpg: Make Kyber creation more flexible.
* common/openpgp-oid.c (openpgp_is_curve_supported): Allow the
abbreviated curve name.
* g10/pkglue.c (pk_encrypt): Add debug output.
* g10/seskey.c (encode_session_key): Handle Kyber session key like
ECDH.  This is just a stub.
* g10/keygen.c (ecckey_from_sexp): Use the modern OID for cv25519.
(parse_key_parameter_part): Allow more Kyber variants.
--

Test by creating an ed25519 key and using

 gpg --quick-add-key --batch --passphrase ""  <fingerprint> <algo>

to create several subkeys.  Tested with ALGOs:

  kyber768
  kyber1024
  ky768_cv25519
  ky768_bp256
  kyber768_nistp256
  ky1024_cv448

All curves capable of encryption should work.

GnuPG-bug-id: 6815
2024-04-10 08:48:49 +02:00
NIIBE Yutaka
c21237ac27
agent:kem: Externalize FIXED_INFO.
* agent/pkdecrypt.c (agent_hybrid_pgp_kem_decrypt): Don't hard code
the value of FIXED_INFO.  Get it from frontend.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2024-04-10 12:52:13 +09:00
NIIBE Yutaka
aee6b1131b
common: Rename to kem.c from kmac.c.
* common/Makefile.am (common_sources): Fix to kem.c.
* common/kem.c: Rename.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2024-04-10 11:14:25 +09:00
NIIBE Yutaka
04b81ec236
common,agent: Factor out KEM functions into common/kem.c.
* common/util.h (compute_kmac256): Remove.
(gnupg_ecc_kem_kdf, gnupg_kem_combiner): New.
* common/kmac.c (compute_kmac256): Don't expose.
(gnupg_ecc_kem_kdf, gnupg_kem_combiner): New.
* agent/pkdecrypt.c (agent_hybrid_pgp_kem_decrypt): Use
gnupg_ecc_kem_kdf and gnupg_kem_combiner.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2024-04-10 11:09:29 +09:00
Werner Koch
52c4b09080
gpg: Some support to allow Kyber decryption.
* g10/call-agent.c (agent_pkdecrypt): Support dual keygrips and switch
to KEM mode.
* g10/ecdh.c (pk_ecdh_decrypt): Add an extra length check.
* g10/keyid.c (do_hash_public_key): Fix Kyber fingerprint computation.

* g10/mainproc.c (release_list): Free all 4 data elements.
(proc_pubkey_enc): Copy all 4 data elements.
* g10/misc.c (openpgp_pk_test_algo2): Map Kyber to KEM.

* g10/parse-packet.c (parse_pubkeyenc): Fix Kyber parser.
* g10/pubkey-enc.c (get_session_key): Allow Kyber.
(get_it): Support Kyber.
--

GnuPG-bug-id: 6815
2024-04-09 11:01:56 +02:00
Werner Koch
1a37f0080b
kbx: Support kyber in the blob parser.
* kbx/keybox-openpgp.c (keygrip_from_keyparm): Support Kyber.
(parse_key): Ditto.
--

GnuPG-bug-id: 6815
2024-04-09 11:01:56 +02:00
NIIBE Yutaka
3a344d6236
gpg: Allow no CRC24 checksum in armor.
* g10/armor.c (radix64_read): Detect the end of armor when
there is no CRC24 checksum.

--

GnuPG-bug-id: 7071
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2024-04-09 09:24:11 +09:00
Werner Koch
f7a26aa8ad
kbx: Fix keyid search for mixed v4/v5 case.
* kbx/keybox-search.c (blob_cmp_fpr_part):  Reworked.
(has_short_kid, has_long_kid): Simplify.
--

The old code was too complicated and did not cope correctly a blob
having a mix of v5 and v4 keys.

Fixes-commit: 01329da8a778d3b0d121c83bfb61d99a39cccac4
GnuPG-bug-id: 5888
2024-04-08 20:32:47 +02:00
Werner Koch
c5d7a332c8
gpg: Do not allow to accidently set the RENC usage.
* g10/keygen.c (print_key_flags): Print "RENC" if set.
(ask_key_flags_with_mask): Remove RENC from the possible set of
usages.  Add a direct way to set it iff the key is encryption capable.
--

This could be done by using "set your own capabilities" for an RSA
key.  In fact it was always set in this case.

GnuPG-bug-id: 7072
2024-04-05 16:18:34 +02:00
Werner Koch
03d53c88cc
gpg: Allow to create a Kyber key from keygrips.
* agent/cvt-openpgp.c (extract_private_key): Support Kyber algorithms.
* common/openpgp-oid.c (map_gcry_pk_to_openpgp): Map KEM to Kyber.
* common/sexputil.c (get_pk_algo_from_key): Increase buffer for use
with "kyber1024".
* g10/call-agent.c (agent_get_keyinfo): Fix warning.
* g10/keygen.c (do_create_from_keygrip): Support Kyber.
(ask_algo): Ditto.
--

To test create a standard key and the use --edit-key and "addkey" with
selection 13 and use the comma delimited keygrips.

GnuPG-bug-id: 7014
2024-04-05 16:16:53 +02:00
Werner Koch
68d9bc9c35
agent: Fix error handling of READKEY.
* agent/command.c (cmd_readkey): Jump to leave on reading error.
--

Fixes-commit: d7a3c455c5e29b19b66772f86dda925064e34896
2024-04-05 14:47:02 +02:00
Werner Koch
b261478c06
agent: Fix error handling of READKEY.
* agent/command.c (cmd_readkey): Jump to leave on reading error.
--

Fixes-commit: d7a3c455c5e29b19b66772f86dda925064e34896
2024-04-05 14:45:05 +02:00
Werner Koch
53c6b1e858
gpg: Support dual keygrips.
* g10/keyid.c (keygrip_from_pk): Add arg get_second to support dual
algos.  Implement for Kyber.
(hexkeygrip_from_pk): Extend for dual algos.
* g10/call-agent.c (agent_keytotpm): Bail out for dual algos.
(agent_keytocard): Ditto.
(agent_probe_secret_key): Handle dual algos.
(agent_probe_any_secret_key): Ditto.
(agent_get_keyinfo): Allow for dual algos but take only the first key.
* g10/export.c (do_export_one_keyblock): Bail out for dual algos.
--

This also adds some fixmes which we eventually need to address.

GnuPG-bug-id: 6815
2024-04-05 12:02:32 +02:00
Werner Koch
ce8b25270b
agent: Make "PKDECRYPT --kem" with optional value work.
* agent/command.c (cmd_pkdecrypt): Fix comparison.

* agent/agent.h (enum kemids): Rename type and strip trailing comma.

* agent/pkdecrypt.c (agent_hybrid_pgp_kem_decrypt): Allow building
with Libgcrypt < 1.11
--

Eventually we should change the libgcrypt requirement in configure.
2024-04-05 11:22:38 +02:00
Werner Koch
548fd7bca7
gpg: Don't show the "fast path listing" diagnostic with --quiet.
* g10/call-agent.c (agent_probe_any_secret_key): Act on --quiet.
--

When using the extra-socket this disagnostic will be printed because a
listing of all secret keys is not allowed by a remote gpg.
2024-04-05 11:02:43 +02:00
NIIBE Yutaka
131dd2a351
agent: Add initial support for hybrid ECC+PQC decryption with KEM.
* agent/agent.h (enum kemid): New.
(agent_kem_decrypt): New.
* agent/command.c (cmd_pkdecrypt): Support --kem option to call
agent_kem_decrypt.
* agent/pkdecrypt.c (reverse_buffer): New.
(agent_hybrid_pgp_kem_decrypt): New.
(agent_kem_decrypt): New.

--

Now, it only supports X25519 + ML-KEM.

GnuPG-bug-id: 7014
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2024-04-05 14:17:25 +09:00
Werner Koch
0b1f7427b3
gpg: Do not allow to accidently set the RENC usage.
* g10/keygen.c (print_key_flags): Print "RENC" if set.
(ask_key_flags_with_mask): Remove RENC from the possible set of
usages.  Add a direct way to set it iff the key is encryption capable.
--

This could be done by using "set your own capabilities" for an RSA
key.  In fact it was always set in this case.

GnuPG-bug-id: 7072
2024-04-04 16:39:14 +02:00
Werner Koch
98e287ba6d
gpgconf: Change layout of the gpgconf -X output.
* tools/gpgconf.c (list_dirs): Change the config mode output.
(my_copy_file): Adjust output for org-mode style.
(show_configs_one_file): Ditto.
(show_other_registry_entries): Ditto.
(show_registry_entries_from_file): Ditto.
(show_configs): Ditto.
2024-04-04 15:53:54 +02:00
Werner Koch
97f5159495
gpg: Initial support for generating Kyber subkeys.
* common/openpgpdefs.h (PUBKEY_ALGO_KY768_25519): Remove.
(PUBKEY_ALGO_KY1024_448): Remove.
(PUBKEY_ALGO_KYBER): New.  Use them everywhere instead of the removed.

* g10/build-packet.c (gpg_mpi_write_nohdr): Rename to
(gpg_mpi_write_opaque_nohdr): this.  Change callers.
(gpg_mpi_write_opaque_32): New.
(do_key): Support Kyber keys using the revised format.
* g10/gpg.h (MAX_EXTERN_KEYPARM_BITS): New.
* g10/parse-packet.c (read_octet_string): Add arg nbytes so support
reading with a length prefix.  Adjust callers.
(parse_key): Parse Kyber public keys.
* g10/misc.c (pubkey_get_npkey): Support Kyber.
(pubkey_get_nskey): Ditto.

* g10/keyid.c (pubkey_string): Support dual algorithms.
(do_hash_public_key): Support Kyber.
(nbits_from_pk): Ditto.
(keygrip_from_pk): Return the Kyber part for the ECC+Kyber dual algo.

* g10/keygen.c (struct common_gen_cb_parm_s): Add genkey_result2.
Note that this callback is not yet used.
(ecckey_from_sexp): Add optional arg sexp2 and use it for Kyber.
Change callers.
(ecckey_from_sexp): Do not leak LIST in case of an error.
(common_gen): Add arg keyparms2, change callers, and support Kyber.
(gen_kyber): New.
(get_keysize_range): Support Kyber.
(fixup_keysize): Simplify and support Kyber.
(do_create): Handle Kyber.
(parse_key_parameter_part): Remove algo strings "ky768" and "ky1024"
and add a generic "kyber" with default parameters.
--

This uses a revised format which is more aligned with the usual
OpenPGP structure.  A lot of things are still missing.  For example
support for handling two keygrips and checking both of them in a -K
listing.  There is also only ky768_bp384 as fixed algorithm for now.
No passphrase for the Kyber part of the dual algorithm is on purpose.

A test was done using

  gpg --quick-gen-key pqc1 nistp256

and then running

  gpg -v --quick-add-key <fingerprint> kyber

which creates a v5 subkey on a v4 primary key.  A second test using

  gpg --quick-gen-key pqc2 Ed448

followed by a --quick-add-key created a v5 key with a v5 subkey.

GnuPG-bug-id: 6815
2024-04-03 18:01:11 +02:00
Werner Koch
6c1dd3afd1
common: Extend openpgp_oid_to_curve to return an abbreviated name.
* common/openpgp-oid.c (oidtable): Add column "abbr" and set them for
Brainpool.
(openpgp_oid_to_curve): Rename arg "canon" to "mode" and implement
mode 2.
--

For dual algorithms (PQC) we need shorter versions of brainpool to
avoid names which otherwise might be capped when printed.
2024-04-03 14:13:57 +02:00
Werner Koch
4b981e415f
tests: Add a sample PDF with a signature
--
2024-04-03 09:52:14 +02:00
Werner Koch
fa33b18940
common: Allow building with libgcrypt 1.10 for now.
* common/kmac.c (compute_kmac256): Return an error for older gcrypt
versions.
--

Except for the new KEM module there is no hard requirement for
libgcrypt 1.11 *yet*.
2024-04-03 09:43:37 +02:00
NIIBE Yutaka
c69363e8c7
agent: Add --another option for hybrid crypto.
* agent/agent.h (struct server_control_s): Add have_keygrip1.
* agent/command.c (reset_notify): Clear have_keygrip1 field.
(cmd_havekey): Add --another option handling.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2024-04-01 14:38:51 +09:00
NIIBE Yutaka
1fa24e2841
common: Add KMAC.
* common/Makefile.am (common_sources): Add kmac.c.
* common/kmac.c: New.
* common/util.h (compute_kmac256): New.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2024-03-29 15:26:42 +09:00
Werner Koch
571a768ac6
gpgsm: Allow to add extensions at the --gen-key prompt.
* sm/certreqgen-ui.c (gpgsm_gencertreq_tty): Add a prompt for
extensions.
--

An example for an extension would be extKeyUsage for authentication:

   2.5.29.37 n 301406082B0601050507030206082B06010505070301
2024-03-27 12:12:52 +01:00
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
f9919bcc48
gpg,gpgsm: New option --disable-fd-translation.
* common/sysutils.c (no_translate_sys2libc_fd) [W32]: New global.
(disable_translate_sys2libc_fd): New.
(translate_sys2libc_fd): Make static and cobuild only for Windows.
(translate_sys2libc_fd_int): Use no_translate_sys2libc_fd flag.

* g10/gpg.c, sm/gpgsm.c (oDisableFdTranslation): New const.
(opts): Add option "disable-fd-translation".
(main): Set option.
--

GnuPG-bug-id: 7060
2024-03-26 15:46:56 +01:00
Werner Koch
cec1fde1bc
scd: Add new OpenPGP vendor
--
2024-03-26 14:57:52 +01:00
Werner Koch
a0bfbdaaa2
Allow installation with a gpgconf.ctl changed homedir.
* common/homedir.c (gpgconf_ctl): Add field "gnupg".
(parse_gpgconf_ctl): Support keyword "gnupg".
(my_gnupg_dirname): New.
(my_fixed_default_homedir): New.
(gnupg_registry_dir): New.
(standard_homedir): Use my_gnupg_dirname and my_fixed_default_homedir.
(default_homedir): Use gnupg_registry_dir and
my_fixed_default_homedir.
(_gnupg_socketdir_internal): Use my_gnupg_dirname.  Increase size of
prefixbuffer.
(gnupg_sysconfdir): Use my_gnupg_dirname.
* tools/gpgconf.c (list_dirs): Use gnupg_registry_dir.
(show_other_registry_entries): Ditto.
--

This will be useful to install versions of GnuPG VS-Desktop and GnuPG
Desktop in addition to a standard GnuPG version.  Only basic tests on
Unix done; Windows testing is still outstanding.

GnuPG-bug-id: 7040
2024-03-21 17:41:10 +01:00
Werner Koch
fb3fe38d28
common: Use a common gpgconf.ctl parser for Unix and Windows.
* common/homedir.c (gpgconf_ctl): new struct.
(string_is_true): New.
(parse_gpgconf_ctl): New.  Based on the former code in unix_rootdir.
(check_portable_app): Use parse_gpgconf_ctl and the new struct.
(unix_rootdir): Ditto.
--

This is a unification of the gpgconf.ctl mechanism.  For backward
compatibility we need to keep the empty (or actually only comments)
method as used formerly under Windows.  Iff one really wants a
portable application the new portable keyword should be used, though.

Noet that the Windows portable stuff has not been tested for quite
some time.
2024-03-21 15:47:43 +01:00
Werner Koch
759adb2493
gpgconf: Check readability of some files with -X
* tools/gpgconf.c (list_dirs): Rename arg from special to
show_config_mode. Add "S.Uiserver" test and test existsing files for
readability.
2024-03-18 11:14:19 +01:00
Werner Koch
122803bf1a
gpg: Make sure a DECRYPTION_OKAY is never issued for a bad OCB tag.
* g10/mainproc.c (proc_encrypted): Force a decryption failure if any
error has been seen.
* g10/decrypt-data.c (aead_checktag): Issue an ERROR line.
--

GnuPG-bug-id: 7042

Note that gpg in any case returns a failure exit code but due to
double forking GPGME would not see it.
2024-03-14 21:51:27 +01:00
Werner Koch
50e81ad38d
gpg: Make sure a DECRYPTION_OKAY is never issued for a bad OCB tag.
* g10/mainproc.c (proc_encrypted): Force a decryption failure if any
error has been seen.
* g10/decrypt-data.c (aead_checktag): Issue an ERROR line.
--

GnuPG-bug-id: 7042

Note that gpg in any case returns a failure exit code but due to
double forking GPGME would not see it.
2024-03-14 21:41:48 +01:00
Werner Koch
f78501c545
gpg: new list-option store-x509-notations.
* g10/options.h (LIST_STORE_X509_NOTATIONS): New.
* g10/gpg.c (parse_list_options): Add "store-x509-notations".
* g10/keylist.c (print_x509_notations): Add arg PK and code to write a
file.
(list_signature_print): Add arg lastpk and handle new option.
(list_keyblock_print): Track last key or subkey and pass to
list_signature_print.
2024-03-14 20:58:01 +01:00
Werner Koch
c27534de95
gpg-check-pattern: Consider an empty pattern file as valid
* tools/gpg-check-pattern.c (read_file): Check length before calling
fread.
--

The problem with an empty file is that es_fread is called to read one
element of length zero which seems to be undefined behaviour and
results in ENOENT on my test box.
2024-03-13 15:33:03 +01:00
Werner Koch
14c1b73093
gpg: new list-option show-x509-notations
* g10/gpg.c (parse_list_options): Add new option.
* g10/options.h (LIST_SHOW_X509_NOTATIONS): New.
* g10/build-packet.c (search_sig_notations): New.
* g10/keylist.c (print_x509_notations): New.
(list_signature_print): Use macros for the sig classes.  Call
print_x509_notations.
(list_keyblock_print): Call list_signature_print if x509 notation
printing is enabled.
2024-03-12 18:01:24 +01:00
Werner Koch
81536535f8
card: Use xstrdup for module names.
--
2024-03-12 16:04:19 +01:00
Werner Koch
4485930f9f
Merge branch 'STABLE-BRANCH-2-4'
--
Resolved conflicts:
	NEWS
	common/exechelp-w32.c
	configure.ac
2024-03-12 16:00:55 +01:00
Werner Koch
609b1ec0c6
Post release updates
--
2024-03-07 15:10:47 +01:00
Werner Koch
cbff323b3b
Release 2.4.5 gnupg-2.4.5 2024-03-07 14:03:25 +01:00
Werner Koch
348de4a829
po: msgmerge
--
2024-03-07 14:01:59 +01:00