Dr. Stephen Henson
aa93b18c2c
Keygen docs.
2006-07-08 21:42:49 +00:00
Dr. Stephen Henson
ba702545fc
EVP_PKEY_derive() docs.
2006-07-08 12:47:52 +00:00
Dr. Stephen Henson
436369100d
Add some examples.
2006-07-08 12:46:51 +00:00
Dr. Stephen Henson
6535bd42e6
EVP_PKEY_verify() docs.
2006-07-08 11:22:23 +00:00
Dr. Stephen Henson
64cee65ebc
New docs.
2006-07-08 11:13:01 +00:00
Dr. Stephen Henson
ba544377fb
Update docs.
2006-07-08 10:55:03 +00:00
Dr. Stephen Henson
5165148f72
Add some EVP_PKEY_METHOD docs.
2006-07-08 10:45:08 +00:00
Bodo Möller
48fc582f66
New functions CRYPTO_set_idptr_callback(),
...
CRYPTO_get_idptr_callback(), CRYPTO_thread_idptr() for a 'void *' type
thread ID, since the 'unsigned long' type of the existing thread ID
does not always work well.
2006-06-23 15:21:36 +00:00
Ulf Möller
c264592d69
Add includes in synopsis.
...
Submitted by: Mike Frysinger <vapier@gentoo.org>
2006-05-14 11:28:00 +00:00
Lutz Jänicke
826b52d26f
Typo
...
Submitted by: Girish Venkatachalam <girish1729@gmail.com>
2006-01-30 17:06:00 +00:00
Dr. Stephen Henson
90890074b0
Typo.
2006-01-15 13:55:31 +00:00
Nils Larsch
802d7fa6d5
support numeric strings in ASN1_generate_nconf
2006-01-14 09:21:33 +00:00
Nils Larsch
29afd31dd1
fix typo, pointed out by Patrick Guio
2005-11-02 22:19:32 +00:00
Nils Larsch
0260405c68
fix BN_mod_word and give a more reasonable return value if an error occurred
2005-07-25 22:57:54 +00:00
Nils Larsch
0d2848b3ba
the second argument of d2i_X509, d2i_X509_CRL and d2i_X509_REQ is const
...
PR: 1156
Submitted by: Michael Bell <michael.bell@cms.hu-berlin.de>
2005-07-13 22:01:33 +00:00
Richard Levitte
ec14c80c7c
The NAME section of a man page is required to have a dash followed by a
...
short description, at least according to pod2man.
PR: 1127
2005-06-23 21:45:37 +00:00
Richard Levitte
eef468e330
Add better documentation on how id_function() should be defined and what
...
issues there are.
PR: 1096
2005-06-18 05:52:16 +00:00
Richard Levitte
a7c924c041
0.9.8-beta5 works on VMS/Alpha
2005-06-13 04:17:12 +00:00
Richard Levitte
19ac190252
The macro THREADS was changed to OPENSSL_THREADS a long time ago.
...
PR: 1096
2005-06-04 08:44:02 +00:00
Dr. Stephen Henson
1aaeaf8a3d
Use correct name for config file env variable.
2005-06-02 23:19:56 +00:00
Nils Larsch
b67d988915
update ecdsa doc
2005-05-19 20:54:30 +00:00
Nils Larsch
d753c3f582
add reference to BN_BLINDING_new.pod
2005-04-29 15:07:34 +00:00
Nils Larsch
9ca46ff609
add docu for BN_BLINDING functions
2005-04-26 22:33:36 +00:00
Nils Larsch
0b3fc6e63b
update
2005-04-24 09:17:48 +00:00
Nils Larsch
ff22e913a3
- use BN_set_negative and BN_is_negative instead of BN_set_sign
...
and BN_get_sign
- implement BN_set_negative as a function
- always use "#define BN_is_zero(a) ((a)->top == 0)"
2005-04-22 20:02:44 +00:00
Nils Larsch
00df894701
the pointer to the message digest is const
2005-04-21 09:43:09 +00:00
Nils Larsch
0e304b7f41
EVP_CIPHER_CTX_init is a void function + fix typo
...
PR: 1044 + 1045
2005-04-15 16:01:35 +00:00
Nils Larsch
119d1a1dd4
fix example in docu
...
PR: 800
2005-04-05 11:17:03 +00:00
Nils Larsch
c3e6402857
update docs (recent constification)
2005-03-30 11:50:14 +00:00
Nils Larsch
4a6a2032ed
the second argument of EVP_SealInit is const
2005-03-29 17:50:08 +00:00
Dr. Stephen Henson
e27a259696
Doc fixes.
2005-03-22 17:55:33 +00:00
Lutz Jänicke
5286db697f
Fix typo on blowfish manual page
...
PR: 1010
Submitted by: Marc Balmer <mbalmer@openbsd.org>
2005-02-19 10:26:18 +00:00
Dr. Stephen Henson
401ee37a3e
Allow alternative manual sections to be embedded in .pod file comments.
2004-11-25 17:47:31 +00:00
Andy Polyakov
376729e130
RC4 tune-up for Intel P4 core, both 32- and 64-bit ones. As it's
...
apparently impossible to compose blended code with would perform
satisfactory on all x86 and x86_64 cores, an extra RC4_CHAR
code-path is introduced and P4 core is detected at run-time. This
way we keep original performance on non-P4 implementations and
turbo-charge P4 performance by factor of 2.8x (on 32-bit core).
2004-11-21 10:36:25 +00:00
Dr. Stephen Henson
4451c2558e
PR: 923
...
Typo.
2004-11-14 15:11:37 +00:00
Dr. Stephen Henson
521aaafc6a
PR: 969
...
Submitted by: David Holmes <davidh@3blackdogs.com>
2004-11-13 13:38:34 +00:00
Andy Polyakov
2b247cf81f
OPENSSL_ia32cap final touches. Note that OPENSSL_ia32cap is no longer a
...
symbol, but a macro expanded as (*(OPENSSL_ia32cap_loc())). The latter
is the only one to be exported to application.
2004-08-29 16:36:05 +00:00
Andy Polyakov
14e21f863a
Add framework for yet another assembler module dubbed "cpuid." Idea
...
is to have a placeholder to small routines, which can be written only
in assembler. In IA-32 case this includes processor capability
identification and access to Time-Stamp Counter. As discussed earlier
OPENSSL_ia32cap is introduced to control recently added SSE2 code
pathes (see docs/crypto/OPENSSL_ia32cap.pod). For the moment the
code is operational on ELF platforms only. I haven't checked it yet,
but I have all reasons to believe that Windows build should fail to
link too. I'll be looking into it shortly...
2004-07-26 20:18:55 +00:00
Richard Levitte
70696f4525
Explain a little better what BN_num_bits() and BN_num_bits_word() do.
...
Add a note as to how these functions do not always return the key size, and
how one can deal with that.
PR: 907
2004-07-01 12:33:39 +00:00
Geoff Thorpe
6a6592962c
Attempt to bring the 'engine' documentation up to date w.r.t missing
...
prototypes, etc. Also, some fairly significant edits were made to the text
(who wrote this crap anyway? oh wait ...), removing stuff which is
overkill, rewriting stuff that was opaque, correcting things that were just
downright false, etc.
2004-06-17 23:40:14 +00:00
Andy Polyakov
6577e16920
Documentation note for Win32 glue between BIO layer and compiler run-time.
2004-05-25 20:32:17 +00:00
Andy Polyakov
109d3123c3
While size_t-fying let's not forget to update documentation:-)
2004-05-20 21:39:50 +00:00
Richard Levitte
f46e76ef50
Make it clear that for RSA_NO_PADDING, flen must be RSA_size(rsa)
2004-03-23 21:01:34 +00:00
Richard Levitte
9449e38504
Correct minor spelling error.
...
PR: 845
2004-03-21 23:03:52 +00:00
Ulf Möller
2457c19df1
typo
2004-03-06 08:43:36 +00:00
Dr. Stephen Henson
f82bb9cb9c
Config docs.
2004-03-02 13:31:32 +00:00
Dr. Stephen Henson
5a8922aed5
Documentation of the KISS autoconfig functions.
2004-03-02 01:01:11 +00:00
Geoff Thorpe
5075521e75
Add ECDSA documentation.
...
Submitted by: Nils Larsch
2004-02-27 23:03:23 +00:00
Richard Levitte
112341031b
Correct documentation typos.
...
This is part of a large change submitted by Markus Friedl <markus@openbsd.org>
2003-12-27 15:04:54 +00:00
Dr. Stephen Henson
e88c577738
Typos.
2003-12-20 22:48:21 +00:00
Richard Levitte
4775944f81
Document that you need to include x509.h (to get [i2d|d2i]_RSA_PUBKEY()).
...
Correct the typo PUKEY...
2003-12-10 14:31:55 +00:00
Richard Levitte
2abd5b7aa0
Document that you need to include x509.h (to get [i2d|d2i]_DSA_PUBKEY()).
...
Correct the typo PUKEY...
2003-12-10 13:57:51 +00:00
Richard Levitte
5ebdb39084
Let's use text/plain in the example instead of crapy HTML.
...
PR: 777
Submitted by: Michael Shields <mshields@sunblocksystems.com>
2003-11-28 14:32:31 +00:00
Ulf Möller
d18b993c43
Geoff suggested a more succinct description for "top".
2003-11-07 01:33:00 +00:00
Ulf Möller
e6e81c5894
oops... the description of ->top was inaccurate (the example is correct though)
2003-11-07 00:07:28 +00:00
Richard Levitte
9ad82c123a
Use correct case for manual page references
2003-10-01 15:02:45 +00:00
Richard Levitte
d90e74c50c
Correct buggy PODs (missing commas and a prepended space).
2003-09-30 17:22:19 +00:00
Richard Levitte
d143dce03c
A document that has a very rough description of the X509
...
functionality. This is mostly so there's a way to get from the
crypto.html page to the function descriptions.
2003-07-10 08:49:03 +00:00
Richard Levitte
36bad5cdfd
Add documentation for ERR_set_mark() and ERR_pop_to_mark().
2003-06-11 20:51:49 +00:00
Richard Levitte
40e5b9abeb
Typo
2003-06-09 07:56:18 +00:00
Richard Levitte
edd55d08f5
Brackets are now allowed, after a small hack in the processing of the
...
docs-on-web.
2003-05-23 09:08:59 +00:00
Dr. Stephen Henson
93c929e411
The square brackets in BIO_s_bio.pod for some
...
reason cause wml to bomb out with the error
message:
** Slice:Error: Some slices were not closed:
** WML:Break: Error in Pass 9 (rc=1).
** WMK:Error: Error in WML (rc=256)
As a workaround delete them for now.
2003-05-19 21:28:49 +00:00
Dr. Stephen Henson
c2dac35a02
Fix docs.
2003-05-18 23:10:46 +00:00
Dr. Stephen Henson
4390d66179
Update from stable branch.
2003-03-31 22:29:25 +00:00
Dr. Stephen Henson
6ac26a5ce5
Typo.
2003-02-27 13:02:46 +00:00
Dr. Stephen Henson
4cadedef57
Update docs.
2003-02-15 01:09:55 +00:00
Dr. Stephen Henson
a8f5b2ed50
GeneralString support in mini-ASN1 compiler
2003-02-11 14:06:27 +00:00
Dr. Stephen Henson
da45180de4
Correct EVP_SealInit() documentation, iv is an output
...
parameter.
2003-01-26 13:38:56 +00:00
Bodo Möller
bda2fa364d
Typo.
...
NB: This and other manual pages should be updated for the new
BN_GENCB interface.
2003-01-13 13:18:22 +00:00
Richard Levitte
18be6c4116
BIO_new_bio_pair() was unnecessarily described in it's own page as well as in
...
BIO_s_bio.pod. The most logical is to move everything needed from
BIO_new_bio_pair.pod to BIO_s_bio.pod (including the nice example)
and toss BIO_new_bio_pair.pod. I hope I got all the info over properly.
PR: 370
2002-12-12 22:12:02 +00:00
Richard Levitte
dad1535f7a
BIO_set_nbio() is enumerated, but not explained. Remove it from enumeration
...
since it's both enumerated and explained in BIO_s_connect.pod.
PR: 370
2002-12-12 22:08:49 +00:00
Richard Levitte
5e4a75e79f
Correct some names.
2002-11-29 14:21:54 +00:00
Dr. Stephen Henson
d78254aa28
Add SETWRAP modifier to ASN1 generate.
2002-11-15 00:26:07 +00:00
Lutz Jänicke
56dc24d483
Use =back to finish =over (found using pod2latex).
...
Submitted by:
Reviewed by:
PR:
2002-11-14 21:50:30 +00:00
Dr. Stephen Henson
cfae3d94e9
Fix documentation of i2d_X509_fp and i2d_X509_bio.
2002-11-14 18:15:52 +00:00
Dr. Stephen Henson
2d780dfd81
Typo
2002-11-13 14:07:37 +00:00
Dr. Stephen Henson
d479dc1d02
Put NAME in right place, fix typo
2002-11-13 01:20:43 +00:00
Dr. Stephen Henson
137e7e3aa1
Update docs
2002-11-13 00:14:15 +00:00
Dr. Stephen Henson
ba36b61d3d
Initial ASN1 generation documentation.
2002-11-12 18:20:28 +00:00
Lutz Jänicke
7d80b27949
Typo.
...
Submitted by: assar <assar@kth.se>
Reviewed by:
PR:
2002-11-11 11:19:15 +00:00
Richard Levitte
6aba658cd8
Revert, that was an incorrect change.
...
PR: 156
2002-10-29 04:34:43 +00:00
Richard Levitte
accb0c6edb
A small detail: since 0.9.7, DH_new_method() and DSA_new_method()
...
don't take an ENGINE* as parameter any more.
PR: 156
2002-10-29 04:31:46 +00:00
Dr. Stephen Henson
0711be1696
New docs.
2002-10-20 13:20:57 +00:00
Geoff Thorpe
7521ab3d0b
Make pod2man happier.
2002-10-18 22:04:26 +00:00
Lutz Jänicke
284b216b3a
Corrected exchanged parameters in example for EVP_EncryptInit_ex()
...
Submitted by: "Marcus Carey" <marcus.carey@verizon.net>
Reviewed by:
PR: 265
2002-10-18 09:47:14 +00:00
Dr. Stephen Henson
29e48c18b7
More docs.
2002-10-09 17:19:59 +00:00
Dr. Stephen Henson
982dfb7d10
Typo.
2002-10-09 17:15:35 +00:00
Dr. Stephen Henson
8c4b69d3ab
Update docs.
2002-10-09 17:05:05 +00:00
Dr. Stephen Henson
ec8ad2bb96
PKCS12_parse manual page.
2002-10-09 13:10:23 +00:00
Dr. Stephen Henson
5fbb02fcb1
PKCS12_create manual page
2002-10-09 12:06:58 +00:00
Dr. Stephen Henson
4e1b50e219
More man pages.
2002-10-09 12:06:12 +00:00
Dr. Stephen Henson
7e9db7cefc
PKCS7_verify() docs.
2002-10-08 00:40:58 +00:00
Dr. Stephen Henson
d30e4c5b0b
More docs.
2002-10-07 17:31:00 +00:00
Dr. Stephen Henson
9de6bb8abc
More d2i/i2d manual pages.
2002-10-07 13:07:00 +00:00
Dr. Stephen Henson
72e04bd13f
Document "0" and "1" naming convention.
2002-10-06 12:59:25 +00:00
Dr. Stephen Henson
4ec0448122
Update docs.
2002-10-06 12:40:31 +00:00
Dr. Stephen Henson
842d8e209b
Update docs.
2002-10-06 12:34:06 +00:00
Dr. Stephen Henson
292fcd5c7b
Update DH parameter docs.
2002-10-06 12:24:09 +00:00
Dr. Stephen Henson
1e976bdc46
Update RSAPublicKey manual page...
2002-10-06 00:03:20 +00:00
Dr. Stephen Henson
9946fceb9d
Some docs relating to X509 ASN1 functions.
...
Many other ASN1 functions are identical other
than the actual structure being handled.
2002-10-05 23:30:10 +00:00
Richard Levitte
6859cf7459
It makes more sense to refer to specific function manuals than the concept
...
manual when the specific function is refered to in the current manual text.
This correction was originally introduced in OpenBSD's tracking of OpenSSL.
2002-09-25 13:33:28 +00:00
Richard Levitte
2018681b33
Remove *all* references to RSA_PKCS1_RSAref, since it doesn't exist any more.
...
This correction was originally introduced in OpenBSD's tracking of OpenSSL.
2002-09-25 13:26:36 +00:00
Richard Levitte
e204516178
Remove reference to RSA_PKCS1_RSAref, since it doesn't exist any more.
...
This correction was originally introduced in OpenBSD's tracking of OpenSSL.
2002-09-25 13:25:44 +00:00
Richard Levitte
153aecf91a
It makes more sense to refer to specific function manuals than the concept
...
manual when the specific function is refered to in the current manual text.
This correction was originally introduced in OpenBSD's tracking of OpenSSL.
2002-09-25 13:11:12 +00:00
Bodo Möller
1fd0338b49
fix manpage
2002-08-15 14:23:23 +00:00
Geoff Thorpe
5bf738737d
These are updates/fixes to DH/DSA/RAND docs based on the fixes to the RSA
...
docs. There were a couple of other places (including RSA) where the docs
were not quite synchronised with the API that are now fixed. One or two
still remain to be fixed though ...
2002-08-05 16:27:01 +00:00
Geoff Thorpe
415e03aa6f
typo fix
2002-08-05 02:54:57 +00:00
Geoff Thorpe
ac120e20e3
Various parts of the RSA documentation were inaccurate and out of date and
...
this fixes those that I'm currently aware of. In particular, the ENGINE
interference in the RSA API has hopefully been clarified. This still needs
to be done for other areas of the API ...
2002-08-04 21:08:36 +00:00
Geoff Thorpe
3f90e45079
A single monolithic man page for the ENGINE stuff. This is a rough
...
first-cut but provides better documentation than having nothing on the
ENGINE API.
2002-08-04 20:57:19 +00:00
Geoff Thorpe
0af9a89cef
This documentation change was being written at the same time as Richard's
...
changes. So I'm committing this version to overwrite his changes for now,
and he can always take his turn to overwrite my words if he wants :-)
PR: 86
2002-07-18 20:59:22 +00:00
Richard Levitte
db802c60e3
Explain why RSA_check_key() doesn't work with hard keys.
...
PR: 86
2002-07-18 19:10:57 +00:00
Richard Levitte
503f3b1a21
Add history for documented new functions.
...
PR: 59
2002-07-18 18:54:46 +00:00
Lutz Jänicke
2edcb4ac71
Typos in links between manual pages
...
Submitted by: Richard.Koenning@fujitsu-siemens.com
Reviewed by:
PR: 129
2002-07-10 19:35:54 +00:00
Richard Levitte
b49053cae2
Documentation bug corrected.
...
PR: 70
2002-06-05 09:31:05 +00:00
Richard Levitte
305a1afcf7
a B< that wasn't properly ended.
2002-05-30 16:55:15 +00:00
Richard Levitte
21d5ed98d5
Small documentation fix for EVP_CipherFinal or EVP_CipherFinal_ex.
...
Notified by Stella Power <snpower@maths.tcd.ie>.
PR: 24
2002-05-08 15:20:38 +00:00
Ulf Möller
592c0e0273
another error discovered by Karsten Braaten. The number was not even
...
prime!
2002-04-13 09:58:50 +00:00
Ulf Möller
4e9ef338fc
error reported by Karsten Braaten
2002-04-07 13:33:16 +00:00
Bodo Möller
2c17323e15
Rephrase statement on the security of two-key 3DES.
...
[Chosen plaintext attack: R. Merkle, M. Hellman: "On the Security of
Multiple Encryption", CACM 24 (1981) pp. 465-467, p. 776.
Known plaintext angriff: P.C. van Oorschot, M. Wiener: "A
known-plaintext attack on two-key triple encryption", EUROCRYPT '90.]
2002-03-05 15:29:30 +00:00
Bodo Möller
a14e2d9dfe
New functions
...
ERR_peek_last_error
ERR_peek_last_error_line
ERR_peek_last_error_line_data
(supersedes ERR_peek_top_error).
Rename OPENSSL_NO_OLD_DES_SUPPORT into OPENSSL_DISABLE_OLD_DES_SUPPORT
because OPENSSL_NO_... indicates disabled algorithms (according to
mkdef.pl).
2002-01-24 16:16:43 +00:00
Lutz Jänicke
6ce46d69f5
Typos (jsyn <jsyn@openbsd.org>).
2002-01-21 18:01:46 +00:00
Bodo Möller
31cafe53c9
add a sentence previously deleted by accident
2002-01-04 15:22:40 +00:00
Bodo Möller
dc4ddcd2bb
add documentation for SSLeay_version(SSLEAY_DIR) and
...
'openssl version -d'
use some descriptions from Lutz' redundant manual page
instead of the previous ones
2002-01-04 15:17:09 +00:00
Lutz Jänicke
5256b021f3
Tsss, SSLeay_version() was already documented, it just was not linked in.
2002-01-04 15:05:51 +00:00
Lutz Jänicke
4ab1e7ceaf
Add information as provided by Richard Levitte on openssl-users :-)
2002-01-04 14:55:38 +00:00
Dr. Stephen Henson
06623ff028
Update PEM docs
2002-01-04 13:35:37 +00:00
Ben Laurie
ff3fa48fc7
Improve back compatibility.
2001-12-09 21:53:31 +00:00
Dr. Stephen Henson
55e42c93a8
EVP_BytesToKey documentation.
2001-12-03 03:07:37 +00:00
Bodo Möller
45582d1e2b
clarify
2001-11-08 14:54:21 +00:00
Ulf Möller
a41477f92e
remove compatibility notes that no longer apply
2001-10-25 17:45:25 +00:00
Richard Levitte
5f68c5feef
Correct some links...
2001-10-25 16:56:06 +00:00
Richard Levitte
ee84a5a7fb
Change the DES documentation to reflect the current status. Note that
...
some password reading functions are really part of the UI
compatibility library...
2001-10-25 16:55:17 +00:00
Bodo Möller
2a9aca32dc
mention des_old.h
2001-10-25 08:44:10 +00:00
Richard Levitte
ce15d5a9dc
Remove DES_random_seed() but retain des_random_seed() for now. Change
...
the docs to reflect this change and correct libeay.num.
2001-10-25 06:46:22 +00:00
Richard Levitte
c2e4f17c1a
Due to an increasing number of clashes between modern OpenSSL and
...
libdes (which is still used out there) or other des implementations,
the OpenSSL DES functions are renamed to begin with DES_ instead of
des_. Compatibility routines are provided and declared by including
openssl/des_old.h. Those declarations are the same as were in des.h
when the OpenSSL project started, which is exactly how libdes looked
at that time, and hopefully still looks today.
The compatibility functions will be removed in some future release, at
the latest in version 1.0.
2001-10-24 21:21:12 +00:00
Dr. Stephen Henson
3811eed8d5
Update docs.
2001-10-17 01:50:32 +00:00
Dr. Stephen Henson
e72d734d5f
Update docs.
2001-10-16 02:22:59 +00:00
Ulf Möller
3b80e3aa9e
ispell
2001-09-07 06:13:40 +00:00
Bodo Möller
983495c4b2
Use uniformly chosen witnesses for Miller-Rabin test
...
(by using new BN_pseudo_rand_range function)
2001-09-03 12:58:16 +00:00
Ben Laurie
8408f4fbc7
Document DES changes better.
2001-07-31 13:33:58 +00:00
Bodo Möller
924875e53b
Undo DH_generate_key() change: s3_srvr.c was using it correctly
2001-07-27 22:34:25 +00:00
Bodo Möller
6aecef815c
Don't preserve existing keys in DH_generate_key.
2001-07-25 17:20:34 +00:00
Bodo Möller
e9ad0d2c31
Fix PRNG.
2001-07-10 10:49:34 +00:00
Dr. Stephen Henson
181355616e
Add examples to EVP_EncryptInit manual page.
2001-05-17 13:03:20 +00:00
Lutz Jänicke
cb2a0e1319
Missing link ("Greg Stark" <gstark@ethentica.com>)
2001-04-12 21:11:31 +00:00
Bodo Möller
fba9046490
Update docs.
2001-03-21 15:25:56 +00:00
Dr. Stephen Henson
a29d78e90b
Initial docs for PEM routines.
2001-03-11 20:29:28 +00:00
Dr. Stephen Henson
1358835050
Change the EVP_somecipher() and EVP_somedigest()
...
functions to return constant EVP_MD and EVP_CIPHER
pointers.
Update docs.
2001-03-09 02:51:02 +00:00
Bodo Möller
98499135d7
Constify BN_value_one.
2001-03-08 13:58:09 +00:00
Ulf Möller
335c4f0966
BN_rand_range() needs a BN_rand() variant that doesn't set the MSB.
2001-02-20 00:23:07 +00:00