1
0
mirror of git://git.gnupg.org/gnupg.git synced 2024-11-10 21:38:50 +01:00
Commit Graph

2096 Commits

Author SHA1 Message Date
Neal H. Walfield
14e5435afb gpg: Fix comparison.
* g10/gpgcompose.c (literal_name): Complain if passed zero arguments,
not one or fewer.

--

Cherry-picked master commit of:
	1ed21eee79

Signed-off-by: Neal H. Walfield <neal@walfield.org>
2019-02-19 15:53:12 +09:00
Werner Koch
7922e2dd1c
Release 2.2.13 2019-02-12 16:30:31 +01:00
Werner Koch
14ea581a1c
gpg: Emit an ERROR status if no key was found with --list-keys.
* g10/keylist.c (list_one): Emit status line.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 140fda8c61)
2019-02-11 10:40:32 +01:00
Werner Koch
31d2a1eeca
gpg: Allow generating Ed25519 key from an existing key.
* g10/misc.c (map_pk_gcry_to_openpgp): Add EdDSA mapping.
--

Due to this missing mapping a "gpg --export --full-gen-key" with
selection "13 - Existing key" did not worked for an ed25519 key.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 346a98fabe)
2019-01-30 11:29:06 +01:00
Werner Koch
b78f293cf0
common: Provide some convenient OpenPGP related constants.
* common/openpgpdefs.h (OPENPGP_MAX_NPKEY): New.
(OPENPGP_MAX_NSKEY): New.
(OPENPGP_MAX_NSIG): New.
(OPENPGP_MAX_NENC): New.
* g10/packet.h: Define PUBKEY_MAX using the new consts.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit f382984966)
2019-01-29 20:18:52 +01:00
Werner Koch
f5d3b982e4
gpg: Stop early when trying to create a primary Elgamal key.
* g10/misc.c (openpgp_pk_test_algo2): Add extra check.
--

The problem is that --key-gen --batch with a parameter file didn't
detect that Elgamal is not capable of signing and so an error was only
triggered at the time the self-signature was created.  See the code
comment for details.

GnuPG-bug-id: 4329
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit f97dc55ff1)
2019-01-22 10:08:06 +01:00
Werner Koch
f7ff25edad
gpg: In search-keys return "Not found" instead of "No Data".
* g10/keyserver.c (keyserver_search): Check for NO_DATA.
--

GnuPG-bug-id: 3830
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit e7252ae57f)
2018-12-11 12:31:36 +01:00
NIIBE Yutaka
d4bc805152 scd: Make "learn" report about KDF data object.
* scd/app-openpgp.c (do_learn_status): Report KDF attr.
* g10/card-util.c (current_card_status): Output KDF for with_colons.

--

Backport of master commit: 05d163aebc
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-12-06 17:11:55 +09:00
NIIBE Yutaka
751ff784e5 card: Display if KDF is enabled or not.
* g10/call-agent.h (kdf_do_enabled): New field.
* g10/call-agent.c (learn_status_cb): Set kdf_do_enabled if available.
* g10/card-util.c (current_card_status): Inform the availability.

--

Cherry pick of master commit: a5542a4a70
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-12-06 17:05:03 +09:00
NIIBE Yutaka
293001e2c6 g10: Fix memory leak for --card-status.
* g10/card-util.c (card_status): Release memory of serial number.

--

Cherry pick of master commit: fe8b633954
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-12-06 17:03:30 +09:00
NIIBE Yutaka
c5aba093b8
g10: Fix print_pubkey_info new line output.
* g10/keylist.c (print_pubkey_info): Reverse the condition.

--

This mistakes were introduced when replacing by estream.

It resulted 'gpg --card-status' from a process with no controlling
terminal fails.

Fixes-commit: fb2ba98963
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit e154fba30b)
2018-12-05 08:56:13 +01:00
Werner Koch
9b53845168
gpg: New list-option "show-only-fpr-mbox".
* g10/gpg.c (parse_list_options): Add option "show-only-fpr-mbox".
* g10/options.h (LIST_SHOW_ONLY_FPR_MBOX): New.
* g10/keylist.c (list_keyblock_simple): New.
(list_keyblock): Call it.
(list_all): Do not print the keyring name in LIST_SHOW_ONLY_FPR_MBOX
mode.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 0e8bf20479)

* g10/keylist.c (list_keyblock_simple): Remove optional arg from
mailbox_from_userid
2018-12-05 08:48:14 +01:00
Jussi Kivilinna
6008410e51
g10/mainproc: disable hash contexts when --skip-verify is used
* g10/mainproc.c (proc_plaintext): Do not enable hash contexts when
opt.skip_verify is set.
--

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
(cherry picked from commit 73e74de0e3)
2018-12-05 08:26:09 +01:00
Werner Koch
edeebe0a6b
gpg: Improve error message about failed keygrip computation.
* g10/keyid.c (keygrip_from_pk): Print the fingerprint on failure.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit cd64af003d)
2018-12-05 08:13:16 +01:00
Werner Koch
6acca0e4d9
doc: Clarify use of clear and nodefault in the AKL.
--

(cherry picked from commit e5c3a6999a)
2018-11-21 09:22:00 +01:00
NIIBE Yutaka
627839ea88 g10: Fix print_keygrip for smartcard.
* g10/card-util.c (print_keygrip): Use tty_fprintf.

--

Reported-by: Joey Pabalinas <joeypabalinas@gmail.com>
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-11-06 15:31:39 +09:00
Werner Koch
82cd7556fd
gpg: Don't take the a TOFU trust model from the trustdb,
* g10/tdbio.c (tdbio_update_version_record): Never store a TOFU model.
(create_version_record): Don't init as TOFU.
(tdbio_db_matches_options): Don't indicate a change in case TOFU is
stored in an old trustdb file.
--

This change allows to switch between a tofu and pgp or tofu+pgp trust
model without an auto rebuild of the trustdb.  This also requires that
the tofu trust model is requested on the command line.  If TOFU will
ever be the default we need to tweak the model detection via TM_AUTO
by also looking into the TOFU data base,

GnuPG-bug-id: 4134
(cherry picked from commit 150a33df41)
2018-11-05 09:17:03 +01:00
Werner Koch
e486fb2495
gpg: Add new card vendor
--

(cherry picked from commit 3c2ffd27f3)
2018-11-05 09:15:17 +01:00
Werner Koch
ab7a907a18
dirmngr: Emit SOURCE status also on NO_DATA.
* dirmngr/ks-engine-hkp.c (ks_hkp_search): Send SOURCE status also on
NO DATA error.
(ks_hkp_get): Ditto.
* g10/call-dirmngr.c (gpg_dirmngr_ks_search): Print "data source" info
also on error.
(gpg_dirmngr_ks_get): Ditto.
--

If a keyserver does not return any data it can be useful to know which
keyserver out of the pool answered.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit bee65edfbc)
2018-11-05 09:13:39 +01:00
Werner Koch
b0d6e26bf3
gpg: Fix extra check for sign usage of a data signature.
* g10/sig-check.c (check_signature_end_simple):
--

Obviously we should not ignore a back signature here.

Fixes-commit: 214b007726
GnuPG-bug-id: 4014
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit b6275f3bda)
2018-10-22 19:27:24 +02:00
NIIBE Yutaka
91f8a9b33a g10: Fix memory leak.
* g10/import.c (read_block): Call free_packet to skip the packet.

--

Cherry-pick of master commit of:
	7c96cc67e1

Reported-by: Philippe Antoine
GnuPG-bug-id: 3916
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-09-07 13:05:17 +09:00
NIIBE Yutaka
f0fdee2e24 Fix use of strncpy, which is actually good to use memcpy.
* common/ssh-utils.c (get_fingerprint): Use memcpy.
* g10/build-packet.c (string_to_notation): Use memcpy.

--

Cherry-pick of master commit of:
	625ced6e67

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-09-06 11:46:20 +09:00
Werner Koch
a9931b3c05
gpg: Explain error message in key generation with --batch
* g10/keygen.c (generate_keypair): Show more info.
--

GnuPG-bug-id: 3912
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 1bfe766bcf)
2018-08-29 15:14:50 +02:00
Werner Koch
719fc941b6
gpg: Remove unused function get_pubkeys.
* g10/getkey.c (get_pubkeys): Remove.
(pubkey_free): Remove and use code directly ...
(pubkeys_free): ... here.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit ed8fe21e66)
2018-08-29 11:57:44 +02:00
Werner Koch
a59a9962f4
gpg: New option --known-notation.
* g10/gpg.c (oKnownNotation): New const.
(opts): Add option --known-notation.
(main): Set option.
* g10/parse-packet.c (known_notations_list): New local var.
(register_known_notation): New.
(can_handle_critical_notation): Rewrite to handle the new feature.
Also print the name of unknown notations in verbose mode.
--

GnuPG-bug-id: 4060
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 3da835713f)
2018-08-29 09:36:44 +02:00
Werner Koch
0709f358cd
gpg: Refresh expired keys originating from the WKD.
* g10/getkey.c (getkey_ctx_s): New field found_via_akl.
(get_pubkey_byname): Set it.
(only_expired_enc_subkeys): New.
(get_best_pubkey_byname): Add support to refresh expired keys from the
WKD.
--

A little drawback of that code is that if the WKD has no update for an
expired key each access of the key will trigger a WKD lookup (unless
cached by the dirmngr).  To avoid this we need to record the last time
we have checked for an update but that would in turn require that we
update the keyring for each check.  We defer this until we have a
better key database which allows for fast updates of meta data.

Testing the code is currently a bit cumbersome because it requires to
update a key in the WKD several times.  Eventually we we need a
network emulation layer to provide sample data for the regression
tests.

GnuPG-bug-id: 2917
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 7f172404bf)
2018-08-28 15:26:36 +02:00
Werner Koch
11a9fe1c58
gpg: Remove unused arg from a function.
* g10/getkey.c (get_best_pubkey_byname): Remove unused arg 'no_akl'.
Change both callers.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit db67ccb759)
2018-08-28 15:26:29 +02:00
NIIBE Yutaka
822c633845 g10: Fix undefined behavior when EOF in parsing packet for S2K.
* g10/parse-packet.c (parse_symkeyenc): Use iobuf_get_noeof.
(parse_key): Likewise.

--

Cherry picked from master commit:
    1b309d9f61

When EOF comes at parsing s2k.count, it is possible the value will
be (unsigned long)-1.  Then, the result of S2K_DECODE_COUNT will be
undefined.  This patch fixes undefined behavior.

Reported-by: Philippe Antoine
GnuPG-bug-id: 4093
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-08-10 15:38:57 +09:00
Werner Koch
f1c0d9bb65
gpg: Set a limit for a WKD import of 256 KiB.
* g10/call-dirmngr.c (MAX_WKD_RESULT_LENGTH): New.
(gpg_dirmngr_wkd_get): Use it.
--

WKD should return only a single key with just one UID.  For key
rollover 2 keys may be send.  A total of 256 KiB seems to be a
generous limit here.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit e88f56f193)
2018-07-29 18:40:01 +02:00
Werner Koch
61562fe000
gpg: Remove multiple subkey bindings during export-clean.
* g10/key-clean.c (clean_one_subkey_dupsigs): New.
(clean_all_subkeys): Call it.
--

GnuPG-bug-id: 3804
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 76989d5bd8)
2018-07-09 12:07:24 +02:00
Werner Koch
8055f186a3
gpg: Let export-clean remove expired subkeys.
* g10/key-clean.h (KEY_CLEAN_NONE, KEY_CLEAN_INVALID)
(KEY_CLEAN_ENCR, KEY_CLEAN_AUTHENCR, KEY_CLEAN_ALL): New.
* g10/key-clean.c (clean_one_subkey): New.
(clean_all_subkeys): Add arg CLEAN_LEVEL.
* g10/import.c (import_one): Call clean_all_subkeys with
KEY_CLEAN_NONE.
* g10/export.c (do_export_stream): Call clean_all_subkeys depedning on
the export clean options.
--

GnuPG-bug-id: 3622
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit c2fd65ec84)
2018-07-09 10:25:06 +02:00
Werner Koch
046276db3a
gpg: Split key cleaning function for clarity.
* g10/key-clean.c (clean_key): Rename to clean_all_uids and split
subkey cleaning into ...
(clean_all_subkeys): new.  Call that always after the former clean_key
invocations.
--

Note that the clean_all_subkeys function will later be extended.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 6c3567196f)
2018-07-09 10:24:53 +02:00
Werner Koch
40bf383f72
gpg: Move key cleaning functions to a separate file.
* g10/trust.c (mark_usable_uid_certs, clean_sigs_from_uid)
(clean_uid_from_key, clean_one_uid, clean_key): Move to ...
* g10/key-clean.c: new file.
* g10/key-clean.h: New.
* g10/Makefile.am (gpg_sources): Add new files.
* g10/export.c, g10/import.c, g10/keyedit.c, g10/trustdb.c: Include
new header.
* g10/trustdb.h (struct key_item, is_in_klist): Move to ...
* g10/keydb.h: here.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 135e46ea48)
2018-07-09 10:24:37 +02:00
Werner Koch
b4599a0449
gpg: Allow decryption using several passphrases in may cases.
* g10/mainproc.c (symkey_decrypt_seskey): Check for a valid algorithm.
(proc_symkey_enc): Clear passpharse on error from above function.
--

This does not work reliable as stated in bug 3795 but we can try to
fix ~95% of all cases.  The real fix is to use AEAD which will come
with 2.3

GnuPG-bug-id: 3795, 4050
Signed-off-by: Werner Koch <wk@gnupg.org>
2018-07-06 08:24:57 +02:00
Werner Koch
221af19351
gpg: Prepare for signatures with ISSUER_FPR but without ISSUER.
* g10/getkey.c (get_pubkey_for_sig): New.
(get_pubkeyblock_for_sig): New.
* g10/mainproc.c (issuer_fpr_raw): Give global scope.
(check_sig_and_print): Use get_pubkeyblock_for_sig.
* g10/pkclist.c (check_signatures_trust): Use get_pubkey_for_sig.
* g10/sig-check.c (check_signature2): Ditto.
(check_signature_over_key_or_uid): Ditto.
--

GnuPG-bug-id: 4046

The whole getkey stuff is still a mess with way to much duplication
and missing caching of already fetched data.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit f7526c7bc7)
2018-07-05 21:41:02 +02:00
Werner Koch
cb6b925f94
gpg: Ignore too large user ids during import.
* g10/import.c (read_block): Add special treatment for bad user ids
and comment packets.
--

See
GnuPG-bug-id: 4022
for an example of a bogus user id.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 01cd66f9fa)
2018-07-04 10:08:36 +02:00
Werner Koch
5b47b46132
indent: Fix indentation of read_block in g10/import.c
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 60e7e102a1)
2018-07-04 10:08:25 +02:00
Werner Koch
ef50fdf82a
gpg: Extra check for sign usage when verifying a data signature.
* g10/sig-check.c (check_signature_end_simple): Check sign usage.
--

Without this patch the signature verification fails only due to the
missing back signature.  This check better explains what went wrong.

GnuPG-bug-id: 4014
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 214b007726)
2018-07-04 09:01:52 +02:00
Werner Koch
04fb76684d
gpg: Print revocation reason for "rev" records.
* g10/main.h: Add prototype.
* g10/keylist.c (list_keyblock_print): Print revocation info.
(list_keyblock_colon): Ditto.

* g10/test-stubs.c (get_revocation_reason): New stub.
* g10/gpgv.c (get_revocation_reason): New stub.
--

GnuPG-bug-id: 1173
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 592deeddb9)
2018-07-03 11:56:18 +02:00
Werner Koch
a8e24addcc
gpg: Print revocation reason for "rvs" records.
* g10/import.c (get_revocation_reason): New.
(list_standalone_revocation): Extend function.
--

Note that this function extends the "rvs" field signature-class (field
11) with the revocation reason.  GPGME does not yet parse this but it
can be expected that the comma delimiter does not break other parsers.

A new field is added to the "rvs" (and in future also the "rev")
record to carry a record specific comment.  Hopefully all parsers
meanwhile learned the lesson from other new fields and don't bail out
on more fields than they know about.

This is partial solution to
GnuPG-bug-id: 1173

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit b7cd2c2093)
2018-07-03 11:56:04 +02:00
Werner Koch
5c67ee160d
gpg: Let --show-keys print revocation certificates.
* g10/import.c (list_standalone_revocation): New.
(import_revoke_cert): Call new function.
--

GnuPG-bug-id: 4018
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 386b9c4f25)
2018-07-03 11:55:41 +02:00
NIIBE Yutaka
2809be1f97 g10: Fix memory leak for PKT_signature.
* g10/getkey.c (buf_to_sig): Free by free_seckey_enc.
* g10/gpgcompose.c (signature): Likewise.
* g10/sign.c (write_signature_packets): Likewise.

--

Cherry picked from master commit:
    996febbab2

Reported-by: Philippe Antoine
GnuPG-bug-id: 4047
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-07-03 09:21:12 +09:00
Werner Koch
e8f439e054
gpg: Do not import revocations with --show-keys.
* g10/import.c (import_revoke_cert): Add arg 'options'.  Take care of
IMPORT_DRY_RUN.
--

GnuPG-bug-id: 4017
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 6c9e37b2e541e96e7c65e1679982a614b4863fdb)
2018-06-12 09:04:36 +02:00
Daniel Kahn Gillmor
86b64876be
gpg: Add new usage option for drop-subkey filters.
* g10/import.c (impex_filter_getval): Add new "usage" property for
drop-subkey filter.
--

For example, this permits extraction of only encryption-capable
subkeys like so:

    gpg --export-filter 'drop-subkey=usage !~ e' --export $FPR

GnuPG-Bug-id: 4019
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
(cherry picked from commit 2ddfb5bef9)
2018-06-12 09:04:13 +02:00
Werner Koch
cbb84b3361
gpg: Set some list options with --show-keys
* g10/gpg.c (main): Set some list options.
--

The new command --show-keys is commonly used to check the content of a
file with keys.  In this case it can be expected that all included
subkeys and uids are of interested, even when they are already expired
or have been revoked.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit d2bc66f241)
2018-06-11 08:49:32 +02:00
Werner Koch
18274db32b
gpg: Allow building with older libgpg-error.
* g10/mainproc.c (proc_encrypted): Use constant from logging.h
--

Because the log levels are enums I had to change there names in
libgpg-error to avoid clashes.  Master uses the new names but 2.2
needs to stick to the old names.

Fixes-commit: 825909e9cd
Signed-off-by: Werner Koch <wk@gnupg.org>
2018-06-08 22:01:10 +02:00
Werner Koch
210e402acd
gpg: Sanitize diagnostic with the original file name.
* g10/mainproc.c (proc_plaintext): Sanitize verbose output.
--

This fixes a forgotten sanitation of user supplied data in a verbose
mode diagnostic.  The mention CVE is about using this to inject
status-fd lines into the stderr output.  Other harm good as well be
done.  Note that GPGME based applications are not affected because
GPGME does not fold status output into stderr.

CVE-id: CVE-2018-12020
GnuPG-bug-id: 4012
(cherry picked from commit 13f135c7a2)
2018-06-08 10:46:42 +02:00
Werner Koch
6a87a0bd25
gpg: Improve import's repair-key duplicate signature detection.
* g10/key-check.c (key_check_all_keysigs): Factor some code out to ...
(remove_duplicate_sigs): new.
(key_check_all_keysigs): Call remove_duplicate_sigs again after
reordering.
--

This is a follupup for commit 26bce2f01d
to cleanup the code and to add a second de-duplicate step when needed.

GnuPG-bug-id: 3994
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 26746fe65d)
2018-06-07 18:43:17 +02:00
Werner Koch
cedd754fcb
gpg: Fix import's repair-key duplicate signature detection.
* g10/packet.h (PKG_siganture): Add field 'help_counter'.
* g10/key-check.c (sig_comparison): Take care of HELP_COUNTER.
(key_check_all_keysigs): De-duplicate on a per-block base.
--

The key_check_all_keysigs first does a detection of duplicate
signature.  This is done over all signatures at once.  The problem
here is for example:

   key
   uid_1
     sig_uid_1.1
     sig_uid_1.2
   subkey_1
     sig_sub_1.1
   subkey_2
     sig_sub_2.1
     sig_sub_2.2  (duplicate of sig_sub_1.1)

Now the de-duplication deletes the first signature and keeps the
second.  That works in most cases for foreign signature on userids but
in the above constellation the code simply removes sig_sub_1.1 so that
subkey_1 has no binding signature anymore.  In a later step during
import the missing binding is detected and subkey_1 is removed because
it is not anymore valid.  The sig_sub_2.2 will also be removed later
because it does not check out for subkey_2 (that is as expected).

The fix is to let the de-duplication work only on blocks (ie. within
the signatures of a user id or a subkey).  This will not detect all
duplicates but that does not harm because later steps will detect and
remove them.

In the above case (with this patch applied) the second phase of
key_check_all_keysigs will reorder key signatures and move the
duplicate sig_sub_2.2 directly after sig_sub_1.1.  This duplicates the
signature and for cleanness we should kick the de-duplication process
again.  This will be done with a followup patch.

GnuPG-bug-id: 3994
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 26bce2f01d)
2018-06-07 18:43:04 +02:00
Werner Koch
36cc730fa5
gpg: Improve verbose output during import.
* g10/import.c (chk_self_sigs): Print the subkeyid in addition to the
keyid.
(delete_inv_parts): Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 1bc6b51742)
2018-06-07 18:42:32 +02:00