Commit Graph

3110 Commits

Author SHA1 Message Date
David Benjamin
3f26a49eb6 Fix up EVP_tls_cbc_remove_padding's calling convention.
The old one was rather confusing. Switch to returning 1/0 for whether
the padding is publicly invalid and then add an output argument which
returns a constant_time_eq-style boolean.

Change-Id: Ieba89d352faf80e9bcea993b716f4b2df5439d4b
Reviewed-on: https://boringssl-review.googlesource.com/10222
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-10 03:52:48 +00:00
David Benjamin
65d74e4d76 Add better TLS CBC mode tests.
Add the following cases:

- Maximal padding

- Maximal padding with each possible byte position wrong.

- When the input is not publicly too short to find a MAC, but the
  unpadded value is too short. (This tests that
  EVP_tls_cbc_remove_padding and EVP_tls_cbc_copy_mac coordinate
  correctly. EVP_tls_cbc_remove_padding promises to also consider it
  invalid padding if there is no room for a MAC.)

Change-Id: I8fe18121afb915e579a8236d0e3ef354f1f835bc
Reviewed-on: https://boringssl-review.googlesource.com/10182
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-10 01:06:24 +00:00
Martin Kreichgauer
909232db55 Make obj2txt accept empty OIDs because Python depends on it.
Change-Id: I44bc5979cb8c15ad8c4f9bef17049312b6f23a41
Reviewed-on: https://boringssl-review.googlesource.com/10200
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-09 22:33:14 +00:00
EKR
f71d7ed014 Shim-specific configuration file with suppressions and error translation.
This is more progress in letting other stacks use the test runner.
You can provide a per-shim configuration file that includes:

 - A list of test patterns to be suppressed (presumably because
   they don't work). This setting is ignored if -test is used.
 - A translation table of expected errors to shim-specific errors.

BUG=92

Change-Id: I3c31d136e35c282e05d4919e18ba41d44ea9cf2a
Reviewed-on: https://boringssl-review.googlesource.com/9161
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-09 19:17:42 +00:00
Brian Smith
2a389ace62 Clarify signed/unsigned math in RSA_padding_add_PKCS1_PSS_mgf1.
Use a separate |size_t| variable for all logic that happens after the
special casing of the negative values of the signed parameter, to
minimize the amount of mixed signed/unsigned math used.

Change-Id: I4aeb1ffce47f889f340f9583684910b0fb2ca7c7
Reviewed-on: https://boringssl-review.googlesource.com/9173
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-09 19:10:18 +00:00
Brian Smith
8585701b2e Clarify checking of emLen in RSA_padding_add_PKCS1_PSS_mgf1.
There is a comment "Note from a test above this value is guaranteed to
be non-negative". Reorganize the code to make it more clear that that
is actually the case, especially in the case where sLen == -1.

Change-Id: I09a3dd99458e34102c42d8d3a2f22c16c684c673
Reviewed-on: https://boringssl-review.googlesource.com/9172
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-09 18:22:07 +00:00
Martin Kreichgauer
baafa4a653 Undo rename of tlsext_tick_lifetime_hint.
It was renamed to ticket_liftetime_hint in
1e6f11a7ff, which breaks Qt.

Change-Id: I9c6d3097fe96e669f06a4e0880bd4d7d82b03ba8
Reviewed-on: https://boringssl-review.googlesource.com/10181
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-09 17:50:28 +00:00
Martin Kreichgauer
14343935b5 Start removing scoped_types.h
Initial stab at moving contents of scoped_types.h into
include/openssl/c++ and into the |bssl| namespace.

Started with one file. Will do the remaining ones once this looks good.

Change-Id: I51e2f7c1acbe52d508f1faee7740645f91f56386
Reviewed-on: https://boringssl-review.googlesource.com/9175
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-09 17:21:12 +00:00
David Benjamin
c505c7ce61 Remove TODOEKR comment.
EKR is unlikely to resolve this TODO anytime soon.

Change-Id: I2cf6b4ad4f643048d1a683d60b4b90e2b1230aae
Reviewed-on: https://boringssl-review.googlesource.com/9155
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-09 15:15:46 +00:00
Brian Smith
783eaad039 Put |sLen| logic in one place in RSA_padding_add_PKCS1_PSS_mgf1.
This makes it easier to understand the |sLen|-related logic.

Change-Id: I98da4f4f7c82d5481544940407e6cc6a963f7e5b
Reviewed-on: https://boringssl-review.googlesource.com/9171
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-08-08 23:27:50 +00:00
David Benjamin
e7e36aae25 Test that switching versions on renego is illegal.
We handle this correctly but never wrote a test for it. Noticed this in
chatting about the second ClientHello.version bug workaround with Eric
Rescorla.

Change-Id: I09bc6c995d07c0f2c9936031b52c3c639ed3695e
Reviewed-on: https://boringssl-review.googlesource.com/9154
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-08 17:27:42 +00:00
David Benjamin
2f8ea545a6 Reimplement OBJ_obj2txt.
The old implementation had a lot of size_t/int confusion. It also
accepted non-minimally-encoded OIDs. Unlike the old implementation, the
new one does not fall back to BIGNUMs and does not attempt to
pretty-print OIDs with components which do not fit in a uint64_t. Add
tests for these cases.

With this new implementation, hopefully we'll have a much easier time
enabling MSVC's size_t truncation warning later.

Change-Id: I602102b97cf9b02d874644f8ef67fe9bac70e45e
Reviewed-on: https://boringssl-review.googlesource.com/9131
Reviewed-by: Adam Langley <agl@google.com>
2016-08-06 00:45:56 +00:00
Brian Smith
253c05e16b Always use the "no_branch" inversion algorithm for even moduli.
This eliminates duplicate logic.

Change-Id: I283273ae152f3644df4384558ee4a021f8c2d454
Reviewed-on: https://boringssl-review.googlesource.com/9104
Reviewed-by: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Commit-Queue: David Benjamin <davidben@google.com>
2016-08-05 22:26:52 +00:00
Brian Smith
a432757acb Use BN_mod_inverse_odd instead of |BN_mod_inverse| for ECC.
BN_mod_inverse_odd was always being used on 64-bit platforms and was being used
for all curves with an order of 450 bits or smaller (basically, everything but
P-521). We generally don't care much about minor differences in the speed of
verifying signatures using curves other than P-256 and P-384. It is better to
always use the same algorithm.

This also allows |bn_mod_inverse_general|, |bn_mod_inverse_no_branch|, and
|BN_mod_inverse| to be dropped from programs that can somehow avoid linking in
the RSA key generation and RSA CRT recovery code.

Change-Id: I79b94bff23d2b07d5e0c704f7d44538797f8c7a0
Reviewed-on: https://boringssl-review.googlesource.com/9103
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-05 22:09:35 +00:00
Brian Smith
4cfdf41789 Use bn_mod_inverse_odd for RSA/inversion blinding.
The main RSA public modulus size of concern is 2048 bits.
bn_mod_inverse_odd is already used for public moduli of 2048 bits and
smaller on 64-bit platforms, so for 64-bit it is a no-op. For 32-bit
x86, this seems to slightly decrease the speed of RSA signing, but not
by a lot, and plus we don't care about RSA signing performance much on
32-bit platforms. It's better to have all platforms using the same
algorithms.

Change-Id: I869dbfc98994e36a04a535c1fe63b14a902a4f13
Reviewed-on: https://boringssl-review.googlesource.com/9102
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-05 22:09:00 +00:00
Brian Smith
f9bdcc1108 Split bn_mod_inverse_ex into bn_mod_inverse_{general, odd}.
This is a step towards exposing |bn_mod_inverse_odd| for use outside
of crypto/bn/gcd.c.

Change-Id: I2968f1e43306c03775b3573a022edd92f4e91df2
Reviewed-on: https://boringssl-review.googlesource.com/9101
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-05 21:32:28 +00:00
Brian Smith
10b09ad28e Factor out common logic in bn_mod_inverse_*.
This is in preparation for factoring out the binary Euclidean
implementation (the one used for odd numbers that aren't too big) for
direct use from outside of crypto/bn/gcd.c. The goal is to make the
resultant |BN_mod_inverse_odd|'s signature similar to
|BN_mod_inverse_blinded|. Thus, the logic for reducing the final result
isn't factored out because that yet-to-be-created |BN_mod_inverse_odd|
will need to do it itself.

Change-Id: Iaecb79fb17d13c774c4fb6ade8742937780b0006
Reviewed-on: https://boringssl-review.googlesource.com/9100
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-05 21:29:09 +00:00
David Benjamin
22edd87755 Resolve a small handful of size_t truncation warnings.
This is very far from all of it, but I did some easy ones before I got
bored. Snapshot the progress until someone else wants to continue this.

BUG=22

Change-Id: I2609e9766d883a273e53e01a75a4b1d4700e2436
Reviewed-on: https://boringssl-review.googlesource.com/9132
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-05 19:12:31 +00:00
David Benjamin
b9195402b4 Align SSL_SESSION_up_ref with OpenSSL.
Only X509_up_ref left (it's still waiting on a few external callers).

BUG=89

Change-Id: Ia2aec2bb0a944356cb1ce29f3b58a26bdb8a9977
Reviewed-on: https://boringssl-review.googlesource.com/9141
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-08-05 19:00:33 +00:00
David Benjamin
a9c3bf142e Add TLS_{client,server}_method.
Inch towards OpenSSL 1.1.0 compatibility.

BUG=91

Change-Id: Ia45b6bdb5114d0891fdffdef0b5868920324ecec
Reviewed-on: https://boringssl-review.googlesource.com/9140
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-08-05 18:59:32 +00:00
David Benjamin
9305a13252 Tidy up PKCS1_MGF1.
Fix non-standard variable names, return value convention, unsigned vs
size_t, etc. This also fixes one size_t truncation warning.

BUG=22

Change-Id: Ibe083db90e8dac45d64da9ead8f519dd2fea96ea
Reviewed-on: https://boringssl-review.googlesource.com/9133
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-05 18:59:22 +00:00
David Benjamin
ea655fa33f Write a test for OBJ_obj2txt.
OBJ_obj2txt's implementation is kind of scary. Also it casts between int
and size_t a lot. In preparation for rewriting it, add a test.

Change-Id: Iefb1d0cddff58d67e5b04ec332477aab8aa687b6
Reviewed-on: https://boringssl-review.googlesource.com/9130
Reviewed-by: Adam Langley <agl@google.com>
2016-08-05 18:32:30 +00:00
David Benjamin
db0c693b76 Add an API-CONVENTIONS.md document.
We're starting to get quite a lot of these ALL-CAPS.md documents.
There's been enough questions around how to properly use types like
EVP_MD_CTX that we probably should write down some of these common
rules.

Change-Id: I125f4e82efb168a071b54ff76c5af34c42ff4800
Reviewed-on: https://boringssl-review.googlesource.com/9115
Reviewed-by: Adam Langley <agl@google.com>
2016-08-04 23:27:49 +00:00
David Benjamin
4087df92f4 Move more side-specific code out of tls13_process_certificate.
tls13_process_certificate can take a boolean for whether anonymous is
allowed. This does change the error on the client slightly, but I think
this is correct anyway. It is not a syntax error for the server to send
no certificates in so far as the Certificate message allows it. It's
just illegal.

Change-Id: I1af80dacf23f50aad0b1fbd884bc068a40714399
Reviewed-on: https://boringssl-review.googlesource.com/9072
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-04 16:58:46 +00:00
David Benjamin
bb9e36e005 Test client certificates carry over on session resumption.
We have tests for this as a server, but none as a client. Extend the
certificate verification tests here. This is in preparation for ensuring
that TLS 1.3 session resumption works correctly.

Change-Id: I9ab9f42838ffd69f73fbd877b0cdfaf31caea707
Reviewed-on: https://boringssl-review.googlesource.com/9111
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-04 16:43:57 +00:00
David Benjamin
e455e51d85 Push some duplicated code into ssl_verify_cert_chain.
No sense in having it in both the 1.2 and 1.3 code.

Change-Id: Ib3854714afed24253af7f4bcee26d25e95a10211
Reviewed-on: https://boringssl-review.googlesource.com/9071
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-04 16:41:03 +00:00
David Benjamin
56d280da2f Remove the SSL_R_SESSION_ID_CONTEXT_UNINITIALIZED sanity check.
While the sanity check isn't insane (one should arrange for sessions to
be invalidated once client auth settings change, and a sid_ctx is one
way to do it), this check lives in a poor place to enforce configuration
mistakes. To be effective, it needs to happen at the start of the
handshake, independent of the ClientHello from the peer.

But the benefit this check gives is low compared to the trouble it will
be to continually maintain this difference from OpenSSL (our own
ssl_test and bssl_shim forget to set a dummy sid_ctx).  Instead, remove
it so we don't have to duplicate it across TLS 1.2 and TLS 1.3. Also so
we don't have weird failures which only manifest once a resuming client
connects.

Change-Id: Ia7f88711701afde5e26b7782c2264ce78dccc89b
Reviewed-on: https://boringssl-review.googlesource.com/9112
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-03 21:43:50 +00:00
Alessandro Ghedini
057b678dca Remove spurious ';' and fix indentation for macro arguments in one file
Align closer to upstream OpenSSL 1.0.2's formatting for this file.

Change-Id: Id29ebc2bbf19f18a7d3001545b0992b26206a2c0
Reviewed-on: https://boringssl-review.googlesource.com/9052
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-03 21:41:01 +00:00
David Benjamin
9f55b53fa0 Purge the remainder of asn1_mac.h.
We'd gotten rid of the macros, but not the underlying asn1_GetSequence
which is unused. Sadly this doesn't quite get rid of ASN1_(const_)?CTX.
There's still some code in the rest of crypto/asn1 that uses it.

Change-Id: I2ba8708ac5b20982295fbe9c898fef8f9b635704
Reviewed-on: https://boringssl-review.googlesource.com/9113
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-03 21:37:31 +00:00
David Benjamin
721e8b79a9 Test that servers enforce session timeouts.
Extend the DTLS mock clock to apply to sessions too and test that
resumption behaves as expected.

Change-Id: Ib8fdec91b36e11cfa032872b63cf589f93b3da13
Reviewed-on: https://boringssl-review.googlesource.com/9110
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-03 21:27:07 +00:00
David Benjamin
a20e535fb1 Add a test for session ID context logic.
We almost forgot to handle this in TLS 1.3, so add a test for it.

Change-Id: I28600325d8fb6c09365e909db607cbace12ecac7
Reviewed-on: https://boringssl-review.googlesource.com/9093
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-03 21:20:33 +00:00
David Benjamin
33dad1b7a1 Stop pretending to ssl_clear_bad_session.
We broke this to varying degrees ages ago.

This is the logic to implement the variations of rules in TLS to discard
sessions after a failed connection, where a failed connection could be
one of:

- A connection that was not cleanly shut down.

- A connection that received a fatal alert.

The first one is nonsense since close_notify does not actually work in
the real world. The second is a vaguely more plausible but...

- A stateless ticket-based server can't drop sessions anyway.

- In TLS 1.3, a client may receive many tickets over the lifetime of a
  single connection. With an external session cache like ours which may,
  in theory, but multithreaded, this will be a huge hassle to track.

- A client may well attempt to establish a connection and reuse the
  session before we receive the fatal alert, so any application state we
  hope to manage won't really work.

- An attacker can always close the connection before the fatal alert, so
  whatever security policy clearing the session gave is easily
  bypassable.

Implementation-wise, this has basically never worked. The
ssl_clear_bad_session logic called into SSL_CTX_remove_session which
relied on the internal session cache. (Sessions not in the internal
session cache don't get removed.) The internal session cache was only
useful for a server, where tickets prevent this mechanism from doing
anything. For a client, we since removed the internal session cache, so
nothing got removed. The API for a client also did not work as it gave
the SSL_SESSION, not the SSL, so a consumer would not know the key to
invalidate anyway.

The recent session state splitting change further broke this.

Moreover, calling into SSL_CTX_remove_session logic like that is
extremely dubious because it mutates the not_resumable flag on the
SSL_SESSION which isn't thread-safe.

Spec-wise, TLS 1.3 has downgraded the MUST to a SHOULD.

Given all that mess, just remove this code. It is no longer necessary to
call SSL_shutdown just to make session caching work.

Change-Id: Ib601937bfc5f6b40436941e1c86566906bb3165d
Reviewed-on: https://boringssl-review.googlesource.com/9091
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-03 21:07:36 +00:00
David Benjamin
cec7344bba Add a CBS version of SSL_early_callback_ctx_extension_get.
Save a little bit of typing at the call site.

Change-Id: I818535409b57a694e5e0ea0e9741d89f2be89375
Reviewed-on: https://boringssl-review.googlesource.com/9090
Reviewed-by: Adam Langley <agl@google.com>
2016-08-03 20:47:05 +00:00
Steven Valdez
1e6f11a7ff Adding NewSessionTicket.
We will now send tickets as a server and accept them as a
client. Correctly offering and resuming them in the handshake will be
implemented in a follow-up.

Now that we're actually processing draft 14 tickets, bump the draft
version.

Change-Id: I304320a29c4ffe564fa9c00642a4ace96ff8d871
Reviewed-on: https://boringssl-review.googlesource.com/8982
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-03 20:03:20 +00:00
David Benjamin
e8e84b9008 Reject warning alerts in TLS 1.3.
As of https://github.com/tlswg/tls13-spec/pull/530, they're gone.
They're still allowed just before the ClientHello or ServerHello, which
is kind of odd, but so it goes.

BUG=86

Change-Id: I3d556ab45e42d0755d23566e006c0db9af35b7b6
Reviewed-on: https://boringssl-review.googlesource.com/9114
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-03 19:58:01 +00:00
Steven Valdez
7259f2fd08 Prefix ext_key_share methods.
Change-Id: Id6a7443246479c62cbe0024e2131a2013959e21e
Reviewed-on: https://boringssl-review.googlesource.com/9078
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 23:13:29 +00:00
Steven Valdez
7b689f6b9e Using NewSessionCallback for bssl client.
TLS 1.3 requires callers use the callback rather than SSL_get_session.

Change-Id: I2caae70e641b102ce93256c847c178871bf78bac
Reviewed-on: https://boringssl-review.googlesource.com/9076
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 23:04:11 +00:00
David Benjamin
a70de147ff Check for trailing data in key_share extension.
Change-Id: I057e19a9547a14b3950395db4318eaf0da01ec13
Reviewed-on: https://boringssl-review.googlesource.com/9079
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 21:37:39 +00:00
David Benjamin
ce079fda12 Add SSL_is_dtls.
OpenSSL 1.1.0 added a function to tell if an SSL* is DTLS or not. This
is probably a good idea, especially since SSL_version returns
non-normalized versions.

BUG=91

Change-Id: I25c6cf08b2ebabf0c610c74691de103399f729bc
Reviewed-on: https://boringssl-review.googlesource.com/9077
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 20:43:58 +00:00
Brian Smith
dc7a786d31 Use BN_nnmod instead of BN_mod in BN_mod_exp_mont_consttime.
|BN_mod_exp_mont| uses |BN_nnmod| so it seems like
|BN_mod_exp_mont_consttime| should too. Further, I created
these test vectors by doing the math by hand, and the tests
passed for |BN_mod_exp_mont| but failed for
|BN_mod_exp_mont_consttime| without this change.

Change-Id: I7cffa1375e94dd8eaee87ada78285cd67fff1bac
Reviewed-on: https://boringssl-review.googlesource.com/9032
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 20:24:58 +00:00
David Benjamin
da2630c190 Remove redundant SSL_VERIFY_PEER check.
None of the SSL_VERIFY_FAIL_IF_NO_PEER_CERT codepaths will ever be
reached if SSL_VERIFY_PEER is unset. If we've gotten as far as getting a
Certificate message, consider SSL_VERIFY_FAIL_IF_NO_PEER_CERT alone
significant grounds for rejecting no peer certificate.

Change-Id: I2c6be4269d65b2467b86b1fc7d76ac47ca735553
Reviewed-on: https://boringssl-review.googlesource.com/9070
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 20:09:04 +00:00
Nick Harper
0b3625bcfd Add support for TLS 1.3 PSK resumption in Go.
Change-Id: I998f69269cdf813da19ccccc208b476f3501c8c4
Reviewed-on: https://boringssl-review.googlesource.com/8991
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 19:37:07 +00:00
David Benjamin
afc64dec74 Add tests to ensure our ClientHello does not change.
We'll need to update it on occasion, but we should not update our
default ClientHello without noticing.

Change-Id: I19ca52fdbe10e3ac14413fecd16be2e58af5a1f6
Reviewed-on: https://boringssl-review.googlesource.com/9075
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 19:34:18 +00:00
David Benjamin
3ce4389e96 Move some client/server special-cases out of tls13_process_certificate.
Where we can move uncommon logic to the caller, we probably ought to.

Change-Id: I54a09fffffc20290be05295137ccb605d562cad0
Reviewed-on: https://boringssl-review.googlesource.com/9069
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 19:20:24 +00:00
Brian Smith
78f84f4e03 Document a conservative input range for Montgomery math functions.
The functions appear to try to handle negative inputs, but it isn't
clear how negative inputs are supposed to work and/or if these
functions work the way they are supposed to given negative inputs.
There seems to be no legitimate reason to pass these functions negative
inputs, so just document that negative inputs shouldn't be used. More
specifically, document that the inputs should be in the range [0, n)
where |n| is the Montgomery modulus.

Change-Id: Id8732fb89616f10e673704e6fa09d78926c402d8
Reviewed-on: https://boringssl-review.googlesource.com/9033
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 19:19:35 +00:00
David Benjamin
899b9b19a4 Ensure |BN_div| never gives negative zero in the no_branch code.
Have |bn_correct_top| fix |bn->neg| if the input is zero so that we
don't have negative zeros lying around.

Thanks to Brian Smith for noticing.

Change-Id: I91bcadebc8e353bb29c81c4367e85853886c8e4e
Reviewed-on: https://boringssl-review.googlesource.com/9074
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 18:53:45 +00:00
Eric Roman
875bf04237 Update comments for HMAC to give a more accurate bound than EVP_MD_MAX_SIZE
BUG=59

Change-Id: If3a788ec1328226d69293996845fa1d14690bf40
Reviewed-on: https://boringssl-review.googlesource.com/9068
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 18:20:42 +00:00
David Benjamin
4501bd5118 Align with OpenSSL on SSL_set_bio behavior.
SSL_set_bio is a nightmare.

In f715c42322, we noticed that, among
other problems, SSL_set_bio's actual behavior did not match how
SSL_set_rfd was calling it due to an asymmetry in the rbio/wbio
handling. This resulted in SSL_set_fd/SSL_set_rfd calls to crash.  We
decided that SSL_set_rfd's believed semantics were definitive and
changed SSL_set_bio.

Upstream, in 65e2d672548e7c4bcb28f1c5c835362830b1745b, decided that
SSL_set_bio's behavior, asymmetry and all, was definitive and that the
SSL_set_rfd crash was a bug in SSL_set_rfd. Accordingly, they switched
the fd callers to use the side-specific setters, new in 1.1.0.

Align with upstream's behavior and add tests for all of SSL_set_bio's
insanity. Also export the new side-specific setters in anticipation of
wanting to be mostly compatible with OpenSSL 1.1.0.

Change-Id: Iceac9508711f79750a3cc2ded081b2bb2cbf54d8
Reviewed-on: https://boringssl-review.googlesource.com/9064
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 17:50:39 +00:00
David Benjamin
e76cdde77d Use newest CRL.
If two CRLs are equivalent then use the one with a later lastUpdate field:
this will result in the newest CRL available being used.

(Imported from upstream's 325da8231c8d441e6bb7f15d1a5a23ff63c842e5 and
3dc160e9be6dcaeec9345fbb61b1c427d7026103.)

Change-Id: I8c722663b979dfe08728d091697d8b8204dc265c
Reviewed-on: https://boringssl-review.googlesource.com/8947
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 17:45:15 +00:00
David Benjamin
2b314fa3a9 Tolerate -0 better in BN_bn2{dec,hex}
Negative zeros are nuts, but it will probably be a while before we've
fixed everything that can create them. Fix both to consistently print
'-0' rather than '0' so failures are easier to diagnose (BN_cmp believes
the values are different.)

Change-Id: Ic38d90601b43f66219d8f44ca085432106cf98e3
Reviewed-on: https://boringssl-review.googlesource.com/9073
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-02 17:35:16 +00:00