Commit Graph

33 Commits

Author SHA1 Message Date
David Benjamin
79c59a30b5 size_t RSA_private_decrypt's input.
Change-Id: If05761052e235b38d9798b2fe4d8ba44293af891
Reviewed-on: https://boringssl-review.googlesource.com/5944
Reviewed-by: Adam Langley <agl@google.com>
2015-09-23 23:55:18 +00:00
David Benjamin
4c60d356a9 Work around even more Estonian ID card misissuances.
Not content with signing negative RSA moduli, still other Estonian IDs have too
many leading zeros. Work around those too.

This workaround will be removed in six months.

BUG=534766

Change-Id: Ica23b1b1499f9dbe39e94cf7b540900860e8e135
Reviewed-on: https://boringssl-review.googlesource.com/5980
Reviewed-by: Adam Langley <agl@google.com>
2015-09-23 20:35:47 +00:00
David Benjamin
231cb82145 Work around broken Estonian smart cards. Again.
Estonian IDs issued between September 2014 to September 2015 are broken and use
negative moduli. They last five years and are common enough that we need to
work around this bug.

Add parallel "buggy" versions of BN_cbs2unsigned and RSA_parse_public_key which
tolerate this mistake, to align with OpenSSL's previous behavior. This code is
currently hooked up to rsa_pub_decode in RSA_ASN1_METHOD so that d2i_X509 is
tolerant. (This isn't a huge deal as the rest of that stack still uses the
legacy ASN.1 code which is overly lenient in many other ways.)

In future, when Chromium isn't using crypto/x509 and has more unified
certificate handling code, we can put client certificates under a slightly
different codepath, so this needn't hold for all certificates forever. Then in
September 2019, when the broken Estonian certificates all expire, we can purge
this codepath altogether.

BUG=532048

Change-Id: Iadb245048c71dba2eec45dd066c4a6e077140751
Reviewed-on: https://boringssl-review.googlesource.com/5894
Reviewed-by: Adam Langley <agl@google.com>
2015-09-15 21:18:15 +00:00
David Benjamin
6fad7bc586 Some documentation fixes.
We had a few duplicate section names.

Change-Id: I0c9b2a1669ac14392fd577097d5ee8dd80f7c73c
Reviewed-on: https://boringssl-review.googlesource.com/5824
Reviewed-by: Adam Langley <agl@google.com>
2015-09-11 20:56:53 +00:00
Matt Braithwaite
02e1834bc7 Make |RSA_PSS_PARAMS| public.
Change-Id: I4a30b80a76cb4bb6e9bc488a915488b0a794520e
Reviewed-on: https://boringssl-review.googlesource.com/5591
Reviewed-by: Adam Langley <agl@google.com>
2015-08-07 02:14:56 +00:00
David Benjamin
34248d4cb7 Get rid of err function codes.
Running make_errors.go every time a function is renamed is incredibly
tedious. Plus we keep getting them wrong.

Instead, sample __func__ (__FUNCTION__ in MSVC) in the OPENSSL_PUT_ERROR macro
and store it alongside file and line number. This doesn't change the format of
ERR_print_errors, however ERR_error_string_n now uses the placeholder
"OPENSSL_internal" rather than an actual function name since that only takes
the uint32_t packed error code as input.

This updates err scripts to not emit the function string table. The
OPENSSL_PUT_ERROR invocations, for now, still include the extra
parameter. That will be removed in a follow-up.

BUG=468039

Change-Id: Iaa2ef56991fb58892fa8a1283b3b8b995fbb308d
Reviewed-on: https://boringssl-review.googlesource.com/5275
Reviewed-by: Adam Langley <agl@google.com>
2015-07-16 02:02:08 +00:00
David Benjamin
74f711083d Parse RSAPrivateKey with CBS.
This removes the version field from RSA and instead handles versioning
as part of parsing. (As a bonus, we now correctly limit multi-prime RSA
to version 1 keys.)

Most consumers are also converted. old_rsa_priv_{de,en}code are left
alone for now. Those hooks are passed in parameters which match the old
d2i/i2d pattern (they're only used in d2i_PrivateKey and
i2d_PrivateKey).

Include a test which, among other things, checks that public keys being
serialized as private keys are handled properly.

BUG=499653

Change-Id: Icdd5f0382c4a84f9c8867024f29756e1a306ba08
Reviewed-on: https://boringssl-review.googlesource.com/5273
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 22:50:53 +00:00
David Benjamin
c0e245a546 Parse RSAPublicKey with CBS.
BUG=499653

Change-Id: If5d98ed23e65a84f9f0e303024f91cce078f3d18
Reviewed-on: https://boringssl-review.googlesource.com/5272
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 22:39:28 +00:00
Matt Braithwaite
1cb49cd2ac Restore |RSA_generate_key()| from OpenSSL at b4f0d1a.
The callback arguments are required to be NULL.

Change-Id: I266ec46efdaca411a7f0c2b645883b2c5bec1c96
Reviewed-on: https://boringssl-review.googlesource.com/5160
Reviewed-by: Adam Langley <agl@google.com>
2015-06-23 21:37:49 +00:00
David Benjamin
b0acb7743f Export pkcs1_prefixed_msg as RSA_add_pkcs1_prefix.
Platform crypto APIs for PKCS#1 RSA signatures vary between expecting the
caller to prepend the DigestInfo prefix (RSA_sign_raw) and prepending it
internally (RSA_sign). Currently, Chromium implements sign or sign_raw as
appropriate. To avoid needing both variants, the new asynchronous methods will
only expose the higher-level one, sign.

To satisfy ports which previously implemented sign_raw, expose the DigestInfo
prefix as a utility function.

BUG=347404

Change-Id: I04c397b5e9502b2942f6698ecf81662a3c9282e6
Reviewed-on: https://boringssl-review.googlesource.com/4940
Reviewed-by: Adam Langley <agl@google.com>
2015-06-16 19:09:45 +00:00
Kenny Root
3a9e1fba0e Correct various documentation typos
Some of the documentation had the right explanation but the incorrect
function names attached.

Change-Id: I7b479dae6d71a5ac7bc86df5a3890508c3b3d09f
Reviewed-on: https://boringssl-review.googlesource.com/5090
Reviewed-by: Adam Langley <agl@google.com>
2015-06-10 22:06:01 +00:00
Adam Langley
839b881c61 Multi-prime RSA support.
RSA with more than two primes is specified in
https://tools.ietf.org/html/rfc3447, although the idea goes back far
earier than that.

This change ports some of the changes in
http://rt.openssl.org/Ticket/Display.html?id=3477&user=guest&pass=guest
to BoringSSL—specifically those bits that are under an OpenSSL license.

Change-Id: I51e8e345e2148702b8ce12e00518f6ef4683d3e1
Reviewed-on: https://boringssl-review.googlesource.com/4870
Reviewed-by: Adam Langley <agl@google.com>
2015-06-05 18:39:44 +00:00
Adam Langley
0da323a8b8 Convert reference counts in crypto/
This change converts the reference counts in crypto/ to use
|CRYPTO_refcount_t|. The reference counts in |X509_PKEY| and |X509_INFO|
were never actually used and so were dropped.

Change-Id: I75d572cdac1f8c1083c482e29c9519282d7fd16c
Reviewed-on: https://boringssl-review.googlesource.com/4772
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 19:15:26 +00:00
David Benjamin
546f1a59ef Unexpose the generic ex_data functions.
Callers are required to use the wrappers now. They still need OPENSSL_EXPORT
since crypto and ssl get built separately in the standalone shared library
build.

Change-Id: I61186964e6099b9b589c4cd45b8314dcb2210c89
Reviewed-on: https://boringssl-review.googlesource.com/4372
Reviewed-by: Adam Langley <agl@google.com>
2015-04-15 23:27:22 +00:00
Brian Smith
b828cfde3a Fix typos in documentation in rsa.h.
Change-Id: I0fb680d088425df8fca558bf8d4213f251eb0a96
Reviewed-on: https://boringssl-review.googlesource.com/4340
Reviewed-by: Adam Langley <agl@google.com>
2015-04-15 03:06:53 +00:00
Adam Langley
c3ef76f327 Compatibility changes for wpa_supplicant and OpenSSH.
OpenSSH, especially, does some terrible things that mean that it needs
the EVP_CIPHER structure to be exposed ☹. Damian is open to a better API
to replace this, but only if OpenSSL agree too. Either way, it won't be
happening soon.

Change-Id: I393b7a6af6694d4d2fe9ebcccd40286eff4029bd
Reviewed-on: https://boringssl-review.googlesource.com/4330
Reviewed-by: Adam Langley <agl@google.com>
2015-04-14 20:18:28 +00:00
Adam Langley
683d7bd20a Convert BN_MONT_CTX to new-style locking.
This introduces a per-RSA/DSA/DH lock. This is good for lock contention,
although pthread locks are depressingly bloated.

Change-Id: I07c4d1606fc35135fc141ebe6ba904a28c8f8a0c
Reviewed-on: https://boringssl-review.googlesource.com/4324
Reviewed-by: Adam Langley <agl@google.com>
2015-04-14 20:10:27 +00:00
Adam Langley
0fd5639701 Fix up whitespace in headers for doc.go.
Also, set sensible defaults for the command-line arguments to doc.go.

Change-Id: Iefd2ade4c9095489efa0ae1059007593fc84923a
2015-04-08 17:32:55 -07:00
Adam Langley
20b64fd19d Export the PSS padding functions.
(system/keymaster is using them now.)

Change-Id: I8fba501005b9318b7d3a76bf1715fb772b23c49d
Reviewed-on: https://boringssl-review.googlesource.com/4092
Reviewed-by: Adam Langley <agl@google.com>
2015-03-31 22:26:57 +00:00
David Benjamin
689be0f4b7 Reset all the error codes.
This saves about 6-7k of error data.

Change-Id: Ic28593d4a1f5454f00fb2399d281c351ee57fb14
Reviewed-on: https://boringssl-review.googlesource.com/3385
Reviewed-by: Adam Langley <agl@google.com>
2015-02-11 23:12:08 +00:00
David Benjamin
c61517cb5a Define the error case's output in RSA_message_index_PKCS1_type_2.
The use in s3_srvr.c doesn't care (it doesn't even have to be in bounds), but
it's good to have the value be initialized and not a function of the input.
(The old uninitialized case wasn't hit in s3_srvr.c because of the earlier
bounds check.)

Change-Id: Ib6b418b3c140aa564f8a46da3d34bb2b69f06195
Reviewed-on: https://boringssl-review.googlesource.com/2845
Reviewed-by: Adam Langley <agl@google.com>
2015-01-14 21:52:36 +00:00
David Benjamin
c20febe177 Add EVP_PKEY_supports_digest.
This is intended for TLS client auth with Windows CAPI- and CNG-backed keys
which implement sign over sign_raw and do not support all hash functions. Only
plumbed through RSA for now.

Change-Id: Ica42e7fb026840f817a169da9372dda226f7d6fd
Reviewed-on: https://boringssl-review.googlesource.com/2250
Reviewed-by: Adam Langley <agl@google.com>
2014-11-18 22:18:36 +00:00
Adam Langley
389e3f0daa Fix minor comment typos.
Change-Id: If7752709727fe33ba38a9d414089253bb2f89ea2
Reviewed-on: https://boringssl-review.googlesource.com/1558
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2014-08-19 19:01:03 +00:00
Adam Langley
6bc658d2e3 Split off private_transform function in RSA.
This change extracts two, common parts of RSA_decrypt and RSA_sign into
a function called |private_transform|. It also allows this to be
overridden in a method, which is convenient for opaque keys that only
expose the raw RSA transform as it means that the padding code from
BoringSSL can be easily reimplemented.

One significant change here is that short RSA ciphertexts will no longer
be accepted. I think this is correct and OpenSSL has a comment about PGP
mistakenly stripping leading zeros. However, these is the possibility
that it could break something.

Change-Id: I258c5cbbf21314cc9b6e8d2a2b898fd9a440cd40
Reviewed-on: https://boringssl-review.googlesource.com/1554
Reviewed-by: Adam Langley <agl@google.com>
2014-08-19 18:37:28 +00:00
David Benjamin
8cc0b24cdd Spell Bleichenbacher's name right.
Change-Id: I2096f760165f7aaa9b5d922a2e6d4d755365087b
Reviewed-on: https://boringssl-review.googlesource.com/1372
Reviewed-by: Adam Langley <agl@google.com>
2014-08-04 18:53:41 +00:00
Adam Langley
eb7d2ed1fe Add visibility rules.
This change marks public symbols as dynamically exported. This means
that it becomes viable to build a shared library of libcrypto and libssl
with -fvisibility=hidden.

On Windows, one not only needs to mark functions for export in a
component, but also for import when using them from a different
component. Because of this we have to build with
|BORINGSSL_IMPLEMENTATION| defined when building the code. Other
components, when including our headers, won't have that defined and then
the |OPENSSL_EXPORT| tag becomes an import tag instead. See the #defines
in base.h

In the asm code, symbols are now hidden by default and those that need
to be exported are wrapped by a C function.

In order to support Chromium, a couple of libssl functions were moved to
ssl.h from ssl_locl.h: ssl_get_new_session and ssl_update_cache.

Change-Id: Ib4b76e2f1983ee066e7806c24721e8626d08a261
Reviewed-on: https://boringssl-review.googlesource.com/1350
Reviewed-by: Adam Langley <agl@google.com>
2014-07-31 22:03:11 +00:00
Adam Langley
5129e2d695 Align EVP return values with BoringSSL convention.
Where possible, functions should return one for success and zero for
error. The use of additional negative values to indicate an error is,
itself, error prone.

This change fixes many EVP functions to remove the possibility of
negative return values. Existing code that is testing for <= 0 will
continue to function, although there is the possibility that some code
was differentiating between negative values (error) and zero (invalid
signature) for the verify functions and will now show the wrong error
message.

Change-Id: I982512596bb18a82df65861394dbd7487783bd3d
Reviewed-on: https://boringssl-review.googlesource.com/1333
Reviewed-by: Adam Langley <agl@google.com>
2014-07-29 21:47:51 +00:00
Adam Langley
05b7377065 Add RSA_check_key function.
This is function that is available in OpenSSL too. Here it only returns
zero or one and doesn't do expensive primality checks on p and q.

https://code.google.com/p/chromium/issues/detail?id=396250

Change-Id: I7a173da26e06440dbb595fb717e3a620edf23576
Reviewed-on: https://boringssl-review.googlesource.com/1334
Reviewed-by: Adam Langley <agl@google.com>
2014-07-28 21:36:57 +00:00
David Benjamin
0aa0767340 Improve constant-time padding check in RSA key exchange.
Although the PKCS#1 padding check is internally constant-time, it is not
constant time at the crypto/ ssl/ API boundary. Expose a constant-time
RSA_message_index_PKCS1_type_2 function and integrate it into the
timing-sensitive portion of the RSA key exchange logic.

Change-Id: I6fa64ddc9d65564d05529d9b2985da7650d058c3
Reviewed-on: https://boringssl-review.googlesource.com/1301
Reviewed-by: Adam Langley <agl@google.com>
2014-07-25 20:25:15 +00:00
David Benjamin
ecc0ce7e67 Introduce EVP_PKEY_is_opaque to replace RSA_METHOD_FLAG_NO_CHECK.
Custom RSA and ECDSA keys may not expose the key material. Plumb and "opaque"
bit out of the *_METHOD up to EVP_PKEY. Query that in ssl_rsa.c to skip the
sanity checks for certificate and key matching.

Change-Id: I362a2d5116bfd1803560dfca1d69a91153e895fc
Reviewed-on: https://boringssl-review.googlesource.com/1255
Reviewed-by: Adam Langley <agl@google.com>
2014-07-18 23:35:04 +00:00
David Benjamin
e14dcc45e8 Remove RSA_SSLV23_PADDING.
It's unused with SSLv2 gone. Also, being a decryption padding check, it really
should be constant-time and isn't.

Change-Id: I96be02cb50f9bf0229b9174eccd80fa338bf8e3e
Reviewed-on: https://boringssl-review.googlesource.com/1254
Reviewed-by: Adam Langley <agl@google.com>
2014-07-18 19:23:51 +00:00
Adam Langley
4c921e1bbc Move public headers to include/openssl/
Previously, public headers lived next to the respective code and there
were symlinks from include/openssl to them.

This doesn't work on Windows.

This change moves the headers to live in include/openssl. In cases where
some symlinks pointed to the same header, I've added a file that just
includes the intended target. These cases are all for backwards-compat.

Change-Id: I6e285b74caf621c644b5168a4877db226b07fd92
Reviewed-on: https://boringssl-review.googlesource.com/1180
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2014-07-14 22:42:18 +00:00
Adam Langley
95c29f3cd1 Inital import.
Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta).

(This change contains substantial changes from the original and
effectively starts a new history.)
2014-06-20 13:17:32 -07:00