Commit Graph

1534 Commits

Author SHA1 Message Date
David Benjamin
8dc226ca8f Add some missing OpenSSL 1.1.0 accessors.
wpa_supplicant appear to be using these.

Change-Id: I1f220cae69162901bcd9452e8daf67379c5e276c
Reviewed-on: https://boringssl-review.googlesource.com/23324
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-11-22 18:43:38 +00:00
David Benjamin
855d5046c7 Unwind legacy SSL_PRIVATE_KEY_METHOD hooks.
After much procrastinating, we finally moved Chromium to the new stuff.
We can now delete this. This is a breaking change for
SSL_PRIVATE_KEY_METHOD consumers, but it should be trivial (remove some
unused fields in the struct). I've bumped BORINGSSL_API_VERSION to ease
any multi-sided changes that may be needed.

Change-Id: I9fe562590ad938bcb4fcf9af0fadeff1d48745fb
Reviewed-on: https://boringssl-review.googlesource.com/23224
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: Steven Valdez <svaldez@google.com>
2017-11-21 17:48:09 +00:00
David Benjamin
e7c95d91f8 Run TLS 1.3 tests at all variants and fix bugs.
We were only running a random subset of TLS 1.3 tests with variants and
let a lot of bugs through as a result.

- HelloRetryRequest-EmptyCookie wasn't actually testing what we were
  trying to test.

- The second HelloRetryRequest detection needs tweaks in draft-22.

- The empty HelloRetryRequest logic can't be based on non-empty
  extensions in draft-22.

- We weren't sending ChangeCipherSpec correctly in HRR or testing it
  right.

- Rework how runner reads ChangeCipherSpec by setting a flag which
  affects the next readRecord. This cuts down a lot of cases and works
  correctly if the client didn't send early data. (In that case, we
  don't flush CCS until EndOfEarlyData and runner deadlocks waiting for
  the ChangeCipherSpec to arrive.)

Change-Id: I559c96ea3a8b350067e391941231713c6edb2f78
Reviewed-on: https://boringssl-review.googlesource.com/23125
Reviewed-by: Steven Valdez <svaldez@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-11-20 18:19:18 +00:00
Daniel Hirche
74b828f263 Clarify the documentation for |BN_is_bit_set|.
Change-Id: Ic859f19edff281334bd6975dd3c3b2931c901021
Reviewed-on: https://boringssl-review.googlesource.com/23044
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-11-15 14:23:11 +00:00
Steven Valdez
964b2377d0 Implement PR 1091 (TLS 1.3 draft '22').
This introduces a wire change to Experiment2/Experiment3 over 0RTT, however
as there is never going to be a 0RTT deployment with Experiment2/Experiment3,
this is valid.

Change-Id: Id541d195cbc4bbb3df7680ae2a02b53bb8ae3eab
Reviewed-on: https://boringssl-review.googlesource.com/22744
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
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2017-11-11 06:24:55 +00:00
David Benjamin
b1cbe19790 Say a bit more about BIO_METHOD.
The hooks should be self-explanatory, except it's non-obvious that
everything assumes BIOs implement BIO_flush.

Change-Id: If09997d3724c4a7608273dc592dc2d099c4353e9
Reviewed-on: https://boringssl-review.googlesource.com/22664
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
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2017-11-06 19:08:01 +00:00
David Benjamin
6cc352e216 Add helper functions for SSL_SIGN_*.
We end up writing these switch cases everywhere. Let consumers decompose
these a bit. The original thought was folks should write switch-cases so
they handle everything they support, but that's a pain. As long as
algorithm preferences are always configured, we can still add new
dimensions because folks won't be asked to sign algorithms that depend
on dimensions they don't understand.

Change-Id: I3dd7f067f2c55212f0201876546bc70fee032bcf
Reviewed-on: https://boringssl-review.googlesource.com/22524
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: Steven Valdez <svaldez@google.com>
2017-11-03 16:05:11 +00:00
David Benjamin
a02ed04d52 Add more compatibility symbols for Node.
Change-Id: Iaeff3adc6da216e965126eaa181427d5318f07d5
Reviewed-on: https://boringssl-review.googlesource.com/22544
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
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2017-11-03 01:31:50 +00:00
Steven Valdez
cd8470f7fa Adding support for draft 21 as a TLS 1.3 variant.
Change-Id: I46686aea9b68105cfe70a11db0e88052781e179c
Reviewed-on: https://boringssl-review.googlesource.com/22164
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-11-01 21:32:36 +00:00
David Benjamin
2637f3c431 Even more fun with Span.
Change-Id: If9f9fdc209b97f955b1ef3dea052393412865e59
Reviewed-on: https://boringssl-review.googlesource.com/22464
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
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2017-11-01 16:28:56 +00:00
David Benjamin
cb16f17b36 Check EC_POINT/EC_GROUP compatibility more accurately.
Currently we only check that the underlying EC_METHODs match, which
avoids the points being in different forms, but not that the points are
on the same curves. (We fixed the APIs early on so off-curve EC_POINTs
cannot be created.)

In particular, this comes up with folks implementating Java's crypto
APIs with ECDH_compute_key. These APIs are both unfortunate and should
not be mimicked, as they allow folks to mismatch the groups on the two
multiple EC_POINTs. Instead, ECDH APIs should take the public value as a
byte string.

Thanks also to Java's poor crypto APIs, we must support custom curves,
which makes this particularly gnarly. This CL makes EC_GROUP_cmp work
with custom curves and adds an additional subtle requirement to
EC_GROUP_set_generator.

Annoyingly, this change is additionally subtle because we now have a
reference cycle to hack around.

Change-Id: I2efbc4bd5cb65fee5f66527bd6ccad6b9d5120b9
Reviewed-on: https://boringssl-review.googlesource.com/22245
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-10-28 08:02:50 +00:00
David Benjamin
d24fd47ff4 Fold EC_POINT_clear_free into EC_POINT_free.
All frees zero memory now.

Change-Id: I5b04a0d14f38d5a7422e148d077fcba85a593594
Reviewed-on: https://boringssl-review.googlesource.com/22225
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
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2017-10-27 17:41:19 +00:00
David Benjamin
3f5d13812a Remove EVP_set_buggy_rsa_parser stub.
Change-Id: I848c79274119e73e39456c75231c8e3f6047fde2
Reviewed-on: https://boringssl-review.googlesource.com/22264
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-10-27 13:49:57 +00:00
David Benjamin
6675cfddef Unexport more of lhash.
There is also no need to make the struct public. Also tidy up includes a
bit.

Change-Id: I188848dfd8f9ed42925b2c55da8dc4751c29f146
Reviewed-on: https://boringssl-review.googlesource.com/22126
Commit-Queue: David Benjamin <davidben@google.com>
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2017-10-25 04:17:18 +00:00
David Benjamin
a37f286f4e Remove the buggy RSA parser.
I've left EVP_set_buggy_rsa_parser as a no-op stub for now, but it
shouldn't need to last very long. (Just waiting for a CL to land in a
consumer.)

Bug: chromium:735616
Change-Id: I6426588f84dd0803661a79c6636a0414f4e98855
Reviewed-on: https://boringssl-review.googlesource.com/22124
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-10-24 17:39:46 +00:00
David Benjamin
40e94701dc Always process handshake records in full.
This removes the last place where non-app-data hooks leave anything
uncomsumed in rrec. (There is still a place where non-app-data hooks see
a non-empty rrec an entrance. read_app_data calls into read_handshake.
That'll be fixed in a later patch in this series.)

This should not change behavior, though some error codes may change due
to some processing happening in a slightly different order.

Since we do this in a few places, this adds a BUF_MEM_append with tests.

Change-Id: I9fe1fc0103e47f90e3c9f4acfe638927aecdeff6
Reviewed-on: https://boringssl-review.googlesource.com/21345
Commit-Queue: Steven Valdez <svaldez@google.com>
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Reviewed-by: Steven Valdez <svaldez@google.com>
2017-10-17 14:53:11 +00:00
Daniel Hirche
f66e88228a Fix documentation for |ssl_ticket_aead_method_st|.
Change-Id: I63b9972034fdc85bf2d23e7d46516755855fafbe
Reviewed-on: https://boringssl-review.googlesource.com/22024
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-10-17 09:17:42 +00:00
David Benjamin
64950cb07f Don't rely on x509.h for SSL_FILETYPE_*.
We still have more links to cut for ssl.h to not pull in x509.h (notably
pem.h), but this resolves some easy ones. I've kept the constants the
same just in case, but nowhere are the constants mixed up by callers or
passed from one to the other in the functions' implementations. They're
completely independent.

Change-Id: Ic0896283378b5846afd6422bfe740951ac552f0e
Reviewed-on: https://boringssl-review.googlesource.com/21704
Commit-Queue: David Benjamin <davidben@google.com>
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2017-10-12 16:23:35 +00:00
David Benjamin
4e840357fd Fully hide LHASH_OF(SSL_SESSION).
It's no longer needed in the public header at all, now that we've hidden
the SSL_CTX struct.

Change-Id: I2fc6ddbeb52f000487627b433b9cdd7a4cde37a8
Reviewed-on: https://boringssl-review.googlesource.com/21684
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-10-12 16:22:59 +00:00
Adam Langley
b15aa0aaef Add chacha.h to the list of documented headers.
Change-Id: Ifb227675cbc8e60128140768fb7d7f5f94928ac2
Reviewed-on: https://boringssl-review.googlesource.com/21764
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-10-12 15:27:34 +00:00
Alessandro Ghedini
01f26f3f32 Re-add hmac.h include to ssl.h.
Commit 9a4876e193 broke NGINX builds with
BoringSSL due to this missing include (OpenSSL builds work fine):

  src/event/ngx_event_openssl.c: In function ‘ngx_ssl_session_ticket_key_callback’:
  src/event/ngx_event_openssl.c:3065:13: error: implicit declaration of function ‘HMAC_Init_ex’; did you mean ‘SHA1_Init’? [-Werror=implicit-function-declaration]
           if (HMAC_Init_ex(hctx, key[0].hmac_key, size, digest, NULL) != 1) {
               ^~~~~~~~~~~~

Change-Id: Ie7170f05034d5fd8c85d1948b4ab9c9bb8447d13
Reviewed-on: https://boringssl-review.googlesource.com/21664
Reviewed-by: Adam Langley <agl@google.com>
2017-10-12 01:47:26 +00:00
David Benjamin
1f1ac63bff Fix typo in TODO comment.
Thanks to Alex Gaynor for reporting this.

Change-Id: I983ecb33cf017160f82582cc79e71f8ae7b30b99
Reviewed-on: https://boringssl-review.googlesource.com/21744
Reviewed-by: David Benjamin <davidben@google.com>
2017-10-11 23:30:42 +00:00
David Benjamin
664e99a648 Make SSL_CTX opaque.
This frees us up to make SSL_CTX a C++ type and avoids a lot of
protrusions of otherwise private types into the global namespace.

Bug: 6
Change-Id: I8a0624a53a4d26ac4a483fa270c39ecdd07459ee
Reviewed-on: https://boringssl-review.googlesource.com/21584
Commit-Queue: Adam Langley <agl@google.com>
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2017-10-11 16:46:20 +00:00
David Benjamin
2450027e59 Fold away clean boolean in BUF_MEM.
OPENSSL_free always zeros things now.

Change-Id: Iaad94f0d7ad51ade05ae89751321314d235d6d67
Reviewed-on: https://boringssl-review.googlesource.com/21384
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-10-10 18:58:20 +00:00
David Benjamin
c64d123933 Push Span down a layer.
Change-Id: I893292b140d033a5aed7e08f928a6c32996bb983
Reviewed-on: https://boringssl-review.googlesource.com/21287
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-10-10 14:27:58 +00:00
David Benjamin
751d1a1c22 Fold ssl_open_record_fatal_alert into ssl_open_record_error.
The only difference is whether there's an alert to send back, but we'll
need to allow an "error without alert" in several cases anyway:

1. If the server sees an HTTP request or garbage instead of a
   ClientHello, it shouldn't send an alert.

2. Resurfaced errors.

Just make zero signal no alert for now. Later on, I'm thinking we might
just want to put the alert into the outgoing buffer and make it further
uniform.

This also gives us only one error state to keep track of rather than
two.

Bug: 206
Change-Id: Ia821d9f89abd2ca6010e8851220d4e070bc42fa1
Reviewed-on: https://boringssl-review.googlesource.com/21286
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2017-10-10 03:07:57 +00:00
David Benjamin
b25a8999be Add the ability to save and restore the error state.
This will be useful for the SSL stack to properly resurface handshake
failures. Leave this in a private header and, along the way, hide the
various types.

(ERR_NUM_ERRORS didn't change in meaning. The old documentation was
wrong.)

Bug: 206
Change-Id: I4c6ca98d162d11ad5e17e4baf439a18fbe371018
Reviewed-on: https://boringssl-review.googlesource.com/21284
Commit-Queue: David Benjamin <davidben@google.com>
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2017-10-09 21:43:13 +00:00
David Benjamin
02afbd338e Build with clang-cl standalone.
Our build logic needed to revised and and clang implements more warnings
than MSVC, so GTest needed more fixes.

Bug: 200
Change-Id: I84c5dd0c51079dd9c990e08dbea7f9022a7d6842
Reviewed-on: https://boringssl-review.googlesource.com/21204
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
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2017-10-05 20:42:49 +00:00
David Benjamin
12fdd08a40 Remove C4245 suppression.
Chromium builds with this warning on. This lets us notice problems (of
which there were only one) sooner. I'll try to align the other warnings
in a follow-up.

Change-Id: Id0960b782733b799e1c3e82f89c2aaba0bdd6833
Reviewed-on: https://boringssl-review.googlesource.com/21164
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-10-05 17:34:58 +00:00
David Benjamin
a65c252f78 Further simplify error queue flags.
ERR_FLAGS_STRING is meaningless and we can use a bitfield for the mark
bit.

Change-Id: I6f677b55b11316147512171629196c651cb33ca9
Reviewed-on: https://boringssl-review.googlesource.com/21084
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-10-04 16:02:16 +00:00
David Benjamin
a4bafd33b3 Add SSL_SESSION_{get,set}_protocol_version.
SSL_SESSION_set_protocol_version is useful when unit-testing a session
cache.

Change-Id: I4b04e31d61ce40739323248e3e5fdae498c4645e
Reviewed-on: https://boringssl-review.googlesource.com/21044
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2017-10-03 19:52:34 +00:00
Steven Valdez
4c7f5fa023 Remove old TLS 1.3 variants (NoSessionID and RecordType).
Change-Id: I2428321218d0b5dce242e3843d39ca269e1eb686
Reviewed-on: https://boringssl-review.googlesource.com/20984
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2017-10-03 18:12:23 +00:00
David Benjamin
51776b0aeb Document more of err.h.
A lot of the private functions are public APIs.

Change-Id: Icb5b6691088f27e16fb1d5f9fb8422e7cf2bab3e
Reviewed-on: https://boringssl-review.googlesource.com/21005
Commit-Queue: David Benjamin <davidben@google.com>
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2017-10-02 21:26:58 +00:00
David Benjamin
e1c3dad959 Error data is always a NUL-terminated malloced string.
Cut down on the number of cases we need to worry about here. In
particular, it would be useful for the handshake to be able to replay an
error.

Change-Id: I2345faaff5503ede1324a5599e680de83f4b106e
Reviewed-on: https://boringssl-review.googlesource.com/21004
Commit-Queue: David Benjamin <davidben@google.com>
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2017-10-02 21:24:08 +00:00
David Benjamin
b949355132 Add bssl::Span<T>::subspan and use it.
This roughly aligns with absl::Span<T>::subspan.

Bug: 132
Change-Id: Iaf29418c1b10e2d357763dec90b6cb1371b86c3b
Reviewed-on: https://boringssl-review.googlesource.com/20824
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: Martin Kreichgauer <martinkr@google.com>
2017-10-02 19:33:28 +00:00
David Benjamin
81f030b106 Switch OPENSSL_VERSION_NUMBER to 1.1.0.
Although we are derived from 1.0.2, we mimic 1.1.0 in some ways around
our FOO_up_ref functions and opaque libssl types. This causes some
difficulties when porting third-party code as any OPENSSL_VERSION_NUMBER
checks for 1.1.0 APIs we have will be wrong.

Moreover, adding accessors without changing OPENSSL_VERSION_NUMBER can
break external projects. It is common to implement a compatibility
version of an accessor under #ifdef as a static function. This then
conflicts with our headers if we, unlike OpenSSL 1.0.2, have this
function.

This change switches OPENSSL_VERSION_NUMBER to 1.1.0 and atomically adds
enough accessors for software with 1.1.0 support already. The hope is
this will unblock hiding SSL_CTX and SSL_SESSION, which will be
especially useful with C++-ficiation. The cost is we will hit some
growing pains as more 1.1.0 consumers enter the ecosystem and we
converge on the right set of APIs to import from upstream.

It does not remove any 1.0.2 APIs, so we will not require that all
projects support 1.1.0. The exception is APIs which changed in 1.1.0 but
did not change the function signature. Those are breaking changes.
Specifically:

- SSL_CTX_sess_set_get_cb is now const-correct.

- X509_get0_signature is now const-correct.

For C++ consumers only, this change temporarily includes an overload
hack for SSL_CTX_sess_set_get_cb that keeps the old callback working.
This is a workaround for Node not yet supporting OpenSSL 1.1.0.

The version number is set at (the as yet unreleased) 1.1.0g to denote
that this change includes https://github.com/openssl/openssl/pull/4384.

Bug: 91
Change-Id: I5eeb27448a6db4c25c244afac37f9604d9608a76
Reviewed-on: https://boringssl-review.googlesource.com/10340
Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-29 04:51:27 +00:00
David Benjamin
e9c7b1c8ae Add SSL_SESSION_is_single_use.
Querying versions is a bit of a mess between DTLS and TLS and variants
and friends. Add SSL_SESSION_is_single_use which informs the caller
whether the session should be single-use.

Bug: chromium:631988
Change-Id: I745d8a5dd5dc52008fe99930d81fed7651b92e4e
Reviewed-on: https://boringssl-review.googlesource.com/20844
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
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2017-09-28 18:38:17 +00:00
David Benjamin
9eaa3bd55d Remove SSL_CTX_sessions and properly lock SSL_CTX_sess_number.
SSL_CTX_sessions is the only think making us expose LHASH as public API
and nothing uses it. Nothing can use it anyway as it's not thread-safe.
I haven't actually removed it yet since SSL_CTX is public, but once the
types are opaque, we could trim the number of symbols ssl.h pulls in
with some work.

Relatedly, fix thread safety of SSL_CTX_sess_number.

Change-Id: I75a6c93509d462cd5ed3ce76c587f0d1e7cd0797
Reviewed-on: https://boringssl-review.googlesource.com/20804
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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2017-09-27 21:58:05 +00:00
David Benjamin
6b3ab72602 Add an implicit CBS to Span<const uint8_t> conversion.
They are exactly the same structure. Doing it in CBS allows us to switch
bssl::Span to absl::Span or a standard std::span in the future.

Bug: 132
Change-Id: Ibc96673c23233d557a1dd4d8768d2659d7a4ca0c
Reviewed-on: https://boringssl-review.googlesource.com/20669
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-27 18:01:05 +00:00
David Benjamin
6666886a9c Fix EnableIfContainer with MSVC 2015.
MSVC 2015's SFINAE implementation is broken. In particular, it seems not
to bother expanding EnableIfContainer unless we force it to by writing
::type. That means we need to use std::enable_if rather than
enable_if_t, even though it's quite wordy.

Change-Id: Ic643ab8a956991bb14af07832be80988f7735428
Reviewed-on: https://boringssl-review.googlesource.com/20764
Commit-Queue: Martin Kreichgauer <martinkr@google.com>
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2017-09-27 17:20:06 +00:00
David Benjamin
42e93b6cf5 Export EVP_parse_digest_algorithm and add EVP_marshal_digest_algorithm.
Chromium's OCSP code needs the OIDs and we already have them on hand.

Change-Id: Icab012ba4ae15ce029cbfe3ed93f89470137e7f6
Reviewed-on: https://boringssl-review.googlesource.com/20724
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-09-25 20:44:13 +00:00
David Benjamin
e58f8a6b9a Simplify tls1_change_cipher_spec.
Rather than use those weird bitmasks, just pass an evp_aead_direction_t
and figure it out from there.

Change-Id: Ie52c6404bd0728d7d1ef964a3590d9ba0843c1d6
Reviewed-on: https://boringssl-review.googlesource.com/20666
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-22 15:18:17 +00:00
David Benjamin
b1b76aee3c Add SSL_CIPHER_get_prf_nid.
draft-ietf-quic-tls needs access to the cipher's PRF hash to size its
keys correctly.

Change-Id: Ie4851f990e5e1be724f262f608f7195f7ca837ca
Reviewed-on: https://boringssl-review.googlesource.com/20624
Reviewed-by: David Benjamin <davidben@google.com>
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2017-09-21 21:44:15 +00:00
David Benjamin
cecf1a72ba Remove unused RSA_METHOD field.
We can finally trim this thing.

Change-Id: I8efd0be23ca11e39712e34734be5cdc70e8ffdc4
Reviewed-on: https://boringssl-review.googlesource.com/20604
Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-21 19:01:46 +00:00
Vincent Batts
60931e2d8a Explicit fallthrough on switch
Fixes failed compile with [-Werror=implicit-fallthrough=], which is
default on gcc-7.x on distributions like fedora.

Enabling no implicit fallthrough for more than just clang as well to
catch this going forward.

Change-Id: I6cd880dac70ec126bd7812e2d9e5ff804d32cadd
Signed-off-by: Vincent Batts <vbatts@redhat.com>
Reviewed-on: https://boringssl-review.googlesource.com/20564
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2017-09-20 19:58:25 +00:00
David Benjamin
246e27d807 Switch the buggy RSA parser off by default.
I'll fully remove this once Chrome 62 hits stable, in case any bug
reports come in for Chrome 61. Meanwhile switch the default to off so
that other consumers pick up the behavior. (Should have done this sooner
and forgot.)

Bug: chromium:735616
Change-Id: Ib27c4072f228cd3b5cce283accd22732eeef46b2
Reviewed-on: https://boringssl-review.googlesource.com/20484
Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-18 19:42:51 +00:00
Martin Kreichgauer
6dc892fcdf Remove redundant calls to |OPENSSL_cleanse| and |OPENSSL_realloc_clean|.
Change-Id: I5c85c4d072ec157b37ed95b284a26ab32c0c42d9
Reviewed-on: https://boringssl-review.googlesource.com/19824
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2017-09-18 19:16:51 +00:00
Adam Langley
e64ef27cbe Add EVP AES-128 CFB128 support via decrepit.
Change-Id: I37a438b5b4b18d18756ba4aeb9f8548caa333981
Reviewed-on: https://boringssl-review.googlesource.com/20384
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Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-18 18:34:06 +00:00
David Benjamin
9a127b43b8 Add CRYPTO_needs_hwcap2_workaround.
Bug: 203
Change-Id: I50384cce14509ab1ca36e6f0e9f192f9e458b313
Reviewed-on: https://boringssl-review.googlesource.com/20404
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-09-18 14:05:46 +00:00
David Benjamin
288ca7dcb4 Remove ASN1_template_(i2d,d2i).
Thes are remnants of some old setup.

Change-Id: I09151fda9419fbe7514f2f609f70284965694bfa
Reviewed-on: https://boringssl-review.googlesource.com/20365
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-15 22:53:43 +00:00
David Benjamin
9a4876e193 Remove hmac.h include from ssl.h.
base.h pulls in all the forward declarations, so this isn't needed.  We
should also remove bio.h and buf.h, but cURL seems to depend on those.
Code search suggests this one is okay though.

  case:yes content:\bHMAC content:openssl/ssl.h -content:openssl/hmac.h

Change-Id: Id91686bd134649245855025940bc17f82823c734
Reviewed-on: https://boringssl-review.googlesource.com/20364
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2017-09-15 22:48:43 +00:00
David Benjamin
33fc2ba4e2 Opaquify SSL_CIPHER.
Bug: 6
Change-Id: Ieb2a8816b63425dce64e26ac41ded894a6c5e61b
Reviewed-on: https://boringssl-review.googlesource.com/20264
Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-13 20:30:00 +00:00
Steven Valdez
c7d4d21413 Add experiment without client CCS and fix session ID bug.
Change-Id: Id6cf63caf5a00d4d4ca66a5c7530c48c2d9ed91f
Reviewed-on: https://boringssl-review.googlesource.com/20164
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2017-09-12 18:05:50 +00:00
Steven Valdez
1682126fd8 Add Experiment 2
Change-Id: If240cbeb133a23331cb6ca59eaacde7733592278
Reviewed-on: https://boringssl-review.googlesource.com/20144
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2017-09-11 16:53:16 +00:00
David Benjamin
54c259dec3 Clarify RSA_add_pkcs1_prefix must be released with OPENSSL_free.
Change-Id: I24b382ccbbbd33ad23c8f64fd91b1d4d41f6c576
Reviewed-on: https://boringssl-review.googlesource.com/20124
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2017-09-08 21:20:34 +00:00
David Benjamin
a861460c89 Make SNI per-connection, not per-session.
Right now we report the per-connection value during the handshake and
the per-session value after the handshake. This also trims our tickets
slightly by removing a largely unused field from SSL_SESSION.

Putting it on SSL_HANDSHAKE would be better, but sadly a number of
bindings-type APIs expose it after the handshake.

Change-Id: I6a1383f95da9b1b141b9d6adadc05ee1e458a326
Reviewed-on: https://boringssl-review.googlesource.com/20064
Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-06 20:25:26 +00:00
Martin Kreichgauer
c0e15d1d9d Zero memory in |OPENSSL_free|.
Allocations by |OPENSSL_malloc| are prefixed with their length.
|OPENSSL_free| zeros the allocation before calling free(), eliminating
the need for a separate call to |OPENSSL_cleanse| for sensitive data.

This change will be followed up by the cleanup in
https://boringssl-review.googlesource.com/c/boringssl/+/19824.

Change-Id: Ie272f07e9248d7d78af9aea81dacec0fdb7484c4
Reviewed-on: https://boringssl-review.googlesource.com/19544
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
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2017-09-06 19:22:46 +00:00
David Benjamin
be90bf764a Clarify ERR_print_errors_* clear the error queue.
Change-Id: Ifaa0129cbacb2346a8d206436eca783060181a85
Reviewed-on: https://boringssl-review.googlesource.com/20004
Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-05 17:31:25 +00:00
David Benjamin
2762b3542d Add X509_PUBKEY to bssl::UniquePtr.
Change-Id: I02d5c8f4a84facc2b120abc3268fb316670b7986
Reviewed-on: https://boringssl-review.googlesource.com/19804
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Matt Braithwaite <mab@google.com>
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2017-08-30 17:23:31 +00:00
Steven Valdez
4d71a9a2ca Migrate TLS 1.2 and below state machines to the new style.
Bug: 128
Change-Id: Ief3779b1c43dd34a154a0f1d2f94d0da756bc07a
Reviewed-on: https://boringssl-review.googlesource.com/19144
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-29 19:23:22 +00:00
David Benjamin
e3bb51cb23 Remove deprecated cipher property APIs.
Consumers have been switched to the new ones.

Change-Id: I7a8ec6308775a105a490882c97955daed12a2c2c
Reviewed-on: https://boringssl-review.googlesource.com/19605
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-28 17:47:25 +00:00
David Benjamin
8fc2dc07d8 Put SCTs and OCSP responses in CRYPTO_BUFFERs.
They both can be moderately large. This should hopefully relieve a little
memory pressure from both connections to hosts which serve SCTs and
TLS 1.3's single-use tickets.

Change-Id: I034bbf057fe5a064015a0f554b3ae9ea7797cd4e
Reviewed-on: https://boringssl-review.googlesource.com/19584
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-08-23 15:58:52 +00:00
David Benjamin
4512b792ba Run comment conversion script on include/
ssl is all that's left. Will do that once that's at a quiet point.

Change-Id: Ia183aed5671e3b2de333def138d7f2c9296fb517
Reviewed-on: https://boringssl-review.googlesource.com/19564
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-18 23:38:51 +00:00
David Benjamin
68a0b1b112 Remove RFC 5114 groups.
These groups are terrible, we got the function wrong (unused ENGINE
parameter does not match upstream), and the functions are unused. Unwind
them. This change doesn't unwind the X9.42 Diffie-Hellman machinery, so
the checks are still present and tested.

(We can probably get rid of the X9.42 machinery too, but it is reachable
from DSA_dup_DH.  That's only used by wpa_supplicant and, if that code
ever ran, it'd be ignored because we don't support DHE in TLS. I've left
it alone for the time being.)

Bug: 2
Change-Id: I8d9396983c8d40ed46a03ba6947720da7e9b689a
Reviewed-on: https://boringssl-review.googlesource.com/19384
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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2017-08-18 16:48:11 +00:00
David Benjamin
3e2001c767 Remove BIO_set_callback and friends.
This is never used.

Change-Id: I20498cab5b59ec141944d4a5e907a1164d0ae559
Reviewed-on: https://boringssl-review.googlesource.com/19184
Commit-Queue: Adam Langley <agl@google.com>
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2017-08-16 18:19:54 +00:00
Martin Kreichgauer
72912d2500 Rotate the default ticket encryption key.
The ticket encryption key is rotated automatically once every 24 hours,
unless a key has been configured manually (i.e. using
|SSL_CTX_set_tlsext_ticket_keys|) or one of the custom ticket encryption
methods is used.

Change-Id: I0dfff28b33e58e96b3bbf7f94dcd6d2642f37aec
Reviewed-on: https://boringssl-review.googlesource.com/18924
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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2017-08-16 18:18:54 +00:00
David Benjamin
18cdde7cc9 Remove old BORINGSSL_YYYYMM defines.
They haven't been needed for a while now.

Change-Id: I4c24799f6692aa8fe8ea8f09795d4e7973baf7d7
Reviewed-on: https://boringssl-review.googlesource.com/19145
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-14 21:51:53 +00:00
Steven Valdez
f4ecc84644 Prevent both early data and custom extensions from being accepted.
This loosens the earlier restriction to match Channel ID. Both may be
configured and offered, but the server is obligated to select only one
of them. This aligns with the current tokbind + 0-RTT draft where the
combination is signaled by a separate extension.

Bug: 183
Change-Id: I786102a679999705d399f0091f76da236be091c2
Reviewed-on: https://boringssl-review.googlesource.com/19124
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
2017-08-14 20:15:54 +00:00
David Benjamin
348f0d8db9 Add OpenSSL 1.1.0's cipher property functions.
Other projects are starting to use them. Having two APIs for the same
thing is silly, so deprecate all our old ones.

Change-Id: Iaf6b6995bc9e4b624140d5c645000fbf2cb08162
Reviewed-on: https://boringssl-review.googlesource.com/19064
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-11 02:08:58 +00:00
David Benjamin
70dbf042b6 Add SSL_CTX_cipher_in_group.
This allows us to fix another consumer that directly accesses SSL_CTX.
I've made ssl_test use it for test coverage, though we're okay with
ssl_test depending on ssl/internal.h.

Bug: 6
Change-Id: I464325e3faa9f0194bbd357fbb31a996afc0c2e1
Reviewed-on: https://boringssl-review.googlesource.com/18964
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2017-08-09 00:41:56 +00:00
David Benjamin
7934f08b26 Replace init_msg/init_num with a get_message hook.
Rather than init_msg/init_num, there is a get_message function which
either returns success or try again. This function does not advance the
current message (see the previous preparatory change). It only completes
the current one if necessary.

Being idempotent means it may be freely placed at the top of states
which otherwise have other asychronous operations. It also eases
converting the TLS 1.2 state machine. See
https://docs.google.com/a/google.com/document/d/11n7LHsT3GwE34LAJIe3EFs4165TI4UR_3CqiM9LJVpI/edit?usp=sharing
for details.

The read_message hook (later to be replaced by something which doesn't
depend on BIO) intentionally does not finish the handshake, only "makes
progress". A follow-up change will align both TLS and DTLS on consuming
one handshake record and always consuming the entire record (so init_buf
may contain trailing data). In a few places I've gone ahead and
accounted for that case because it was more natural to do so.

This change also removes a couple pointers of redundant state from every
socket.

Bug: 128
Change-Id: I89d8f3622d3b53147d69ee3ac34bb654ed044a71
Reviewed-on: https://boringssl-review.googlesource.com/18806
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-08 21:13:04 +00:00
David Benjamin
8f94c31b19 Replace reuse_message with an explicit next_message call.
This means that ssl_get_message (soon to be replaced with a BIO-less
version) is idempotent which avoids the SSL3_ST_SR_KEY_EXCH_B
contortion. It also eases converting the TLS 1.2 state machine. See
https://docs.google.com/a/google.com/document/d/11n7LHsT3GwE34LAJIe3EFs4165TI4UR_3CqiM9LJVpI/edit?usp=sharing
for details.

Bug: 128
Change-Id: Iddd4f951389e8766da07a9de595b552e75f8acf0
Reviewed-on: https://boringssl-review.googlesource.com/18805
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-08 21:08:59 +00:00
David Benjamin
ba2d3df759 Add DTLS_with_buffers_method.
WebRTC will need this (probably among other things) to lose crypto/x509
at some point.

Bug: chromium:706445
Change-Id: I988e7300c4d913986b6ebbd1fa4130548dde76a4
Reviewed-on: https://boringssl-review.googlesource.com/18904
Reviewed-by: David Benjamin <davidben@google.com>
2017-08-07 21:01:25 +00:00
David Benjamin
4492a61567 More scopers.
Note the legacy client cert callback case fixes a leak.

Change-Id: I2772167bd03d308676d9e00885c751207002b31e
Reviewed-on: https://boringssl-review.googlesource.com/18824
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
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2017-08-03 19:35:09 +00:00
David Benjamin
211a06afef Rephrase documentation on early data reset.
There was a typo (then => the), but I think this is clearer, albeit
longer.

Change-Id: Ic95368a1bea1feba9d6a00029bbfb5b8ffd260ec
Reviewed-on: https://boringssl-review.googlesource.com/18747
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-02 17:15:36 +00:00
David Benjamin
27e377ec65 Fix miscellaneous clang-tidy warnings.
There are still a ton of them, almost exclusively complaints that
function declaration and definitions have different parameter names. I
just fixed a few randomly.

Change-Id: I1072f3dba8f63372cda92425aa94f4aa9e3911fa
Reviewed-on: https://boringssl-review.googlesource.com/18706
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-08-01 20:39:46 +00:00
Adam Langley
4d1b57ae7f Add dummy |RAND_get_rand_method|.
Change-Id: I84b9a7606aaf28e582c79ada47df95b46ff2c2c2
Reviewed-on: https://boringssl-review.googlesource.com/18624
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>
2017-07-28 21:50:21 +00:00
Martin Kreichgauer
abbf365b6d Make the bssl::SealRecord out_suffix arg fixed length.
Similarly, add EVP_AEAD_CTX_tag_len which computes the exact tag length
for required by EVP_AEAD_CTX_seal_scatter.

Change-Id: I069b0ad16fab314fd42f6048a3c1dc45e8376f7f
Reviewed-on: https://boringssl-review.googlesource.com/18324
Reviewed-by: Adam Langley <agl@google.com>
2017-07-28 21:42:25 +00:00
David Benjamin
6e9321f9ae Add a bssl::PushToStack helper.
Pushing entries onto a stack when handling malloc failures is a
nuisance. sk_push only takes ownership on success. PushToStack smooths
that over with a UniquePtr.

Bug: 132
Change-Id: I4f0a9eee86dda7453f128c33d3a71b550beb25e9
Reviewed-on: https://boringssl-review.googlesource.com/18468
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2017-07-28 19:56:36 +00:00
David Benjamin
4d2e1a8fb8 Add a note on architecture requirements.
The s390x patches keep on coming.

Change-Id: I6d7f79e5ee7c8fcfe6b2e8e549b18ee686b4392b
Reviewed-on: https://boringssl-review.googlesource.com/18564
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-07-28 16:03:40 +00:00
David Benjamin
af2b1e8210 C++ headers should be more aggressively wrapped in extern "C++".
This is kind of a mess. Some projects will wrap our public headers in
extern "C", so we use extern "C++" around our C++ APIs. However this
needs to be done when including C++ standard library headers too since
they don't always, themselves, guard against being wrapped in extern
"C".

Change-Id: Ib7dd4a6f69ca81dd525ecaa1418b3b7ba85b6579
Reviewed-on: https://boringssl-review.googlesource.com/18504
Reviewed-by: Adam Langley <agl@google.com>
2017-07-27 20:12:53 +00:00
David Benjamin
ec783839be Make ranged for loops work with STACK_OF(T).
My original plan here was to make STACK_OF(T) expand to a template so
the inner type were extractable. Unfortunately, we cannot sanely make
STACK_OF(T) expand to a different type in C and C++ even across
compilation units because UBSan sometimes explodes. This is nuts, but so
it goes.

Instead, use StackTraits to extract the STACK_OF(T) parameters and
define an iterator type.

Bug: 189
Change-Id: I64f5173b34b723ec471f7a355ff46b04f161386a
Reviewed-on: https://boringssl-review.googlesource.com/18467
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2017-07-26 22:02:00 +00:00
David Benjamin
0121953a10 Register stack deleters automatically.
Rather than manually register the stack deleters separately, instantiate
them automatically from DEFINE_STACK_OF and BORINGSSL_MAKE_DELETER. The
StackTraits bridge in DEFINE_STACK_OF will additionally be used for
other C++ STACK_OF conveniences.

Bug: 132
Change-Id: I95d6c15b2219b34c7a8ce06dd8012d073dc19c27
Reviewed-on: https://boringssl-review.googlesource.com/18465
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>
2017-07-26 21:03:11 +00:00
Adam Langley
13fafcd32a Add a warning to |SSL_get_servername|.
The value returned by |SSL_get_servername| is owned by the |SSL*|, which
might be surprising if someone stashes it away and expects to be able to
use it later.

Change-Id: I7b61d1dd0d3d0bf035bbcc9ffdbea10c33296f59
Reviewed-on: https://boringssl-review.googlesource.com/18444
Reviewed-by: David Benjamin <davidben@google.com>
2017-07-26 02:02:30 +00:00
Adam Langley
ccf80574e9 Use functions that do not depend on the current locale.
X.509 functions and the like should not vary their behaviour based on
the configured locale, but tolower(3), strcasecmp(3) and strncasecmp(3)
change behaviour based on that.

For example, with tr_TR.utf8, 'I' is not the upper-case version of 'i'.

Change-Id: I896a285767ae0c22e6ce06b9908331c625e90af2
Reviewed-on: https://boringssl-review.googlesource.com/18412
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>
2017-07-25 22:53:33 +00:00
Adam Langley
22df69103f Document the behaviour of non-standard separators in cipher strings.
OpenSSL allows spaces, commas and semi-colons to be used as separators
in cipher strings, in addition to the usual colons.

This change documents that spaces cannot be used in equal-preference
groups and forbids these alternative separators in strict mode.

Change-Id: I3879e25aed54539c281511627e6a282e9463bdc3
Reviewed-on: https://boringssl-review.googlesource.com/18424
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2017-07-25 20:48:44 +00:00
Martin Kreichgauer
2eee131401 span: work around MSVC warning C4996
Change-Id: Id849061c63c954f915c8efd34838f867f8e1b09e
Reviewed-on: https://boringssl-review.googlesource.com/18384
Commit-Queue: Martin Kreichgauer <martinkr@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2017-07-24 23:26:15 +00:00
Martin Kreichgauer
17c3057f26 Add bssl::SealRecord and bssl::OpenRecord.
This is a C++ interface for encrypting and decrypting TLS application
data records in-place, wrapping the existing C API in tls_record.cc.

Also add bssl::Span, a non-owning reference to a contiguous array of
elements which can be used as a common interface over contiguous
container types (like std::vector), pointer-length-pairs, arrays, etc.

Change-Id: Iaa2ca4957cde511cb734b997db38f54e103b0d92
Reviewed-on: https://boringssl-review.googlesource.com/18104
Commit-Queue: Martin Kreichgauer <martinkr@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2017-07-24 20:14:08 +00:00
David Benjamin
ebb4a37ed2 Define BORINGSSL_NO_CXX if !__cplusplus.
This should make it a little easier to write C++-only public headers.

Change-Id: Ie5bff241c810cb5330f66d8a4dc1dd8b2d69c7c9
Reviewed-on: https://boringssl-review.googlesource.com/18225
Reviewed-by: David Benjamin <davidben@google.com>
2017-07-20 21:27:22 +00:00
David Benjamin
9f9f4eaa2e Fix typo.
Change-Id: I4720fdf0f943b9f196a57ceec340b4161f04ea5d
Reviewed-on: https://boringssl-review.googlesource.com/18304
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: Robert Sloan <varomodt@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-07-20 21:26:32 +00:00
David Benjamin
e39ac8fb59 Switch BORINGSSL_INTERNAL_CXX_TYPES in favor of subclassing games.
The previous attempt around the 'struct ssl_st' compatibility mess
offended OSS-Fuzz and UBSan because one compilation unit passed a
function pointer with ssl_st* and another called it with
bssl::SSLConnection*.

Linkers don't retain such types, of course, but to silence this alert,
instead make C-visible types be separate from the implementation and
subclass the public type. This does mean we risk polluting the symbol
namespace, but hopefully the compiler is smart enough to inline the
visible struct's constructor and destructor.

Bug: 132
Change-Id: Ia75a89b3a22a202883ad671a630b72d0aeef680e
Reviewed-on: https://boringssl-review.googlesource.com/18224
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-07-20 17:24:12 +00:00
David Benjamin
cfc11c2320 C++-ify SSL_AEAD_CTX.
This adds several utilities as replacements for new and delete and makes
bssl::UniquePtr work with our private types.

Later work can convert more incrementally. I did this one more
aggressively to see how it'd work. Unfortunately, in doing so, I needed
to remove the NULL SSL_AEAD_CTX "method" receiver trick to appease
clang. The null cipher is now represented by a concrete SSL_AEAD_CTX.
The long-lived references to SSL_AEAD_CTX are not yet in types with
constructors, so they still bare Delete rather than UniquePtr for now.

Though this does mean we may be able to move the sequence number into
SSLAEADContext later which is one less object for DTLS to carry around.

Bug: 132
Change-Id: I506b404addafb692055d5709b0ca6d5439a4e6be
Reviewed-on: https://boringssl-review.googlesource.com/18164
Reviewed-by: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-07-20 03:17:06 +00:00
David Benjamin
86e95b852e Move libssl's internals into the bssl namespace.
This is horrible, but everything else I tried was worse. The goal with
this CL is to take the extern "C" out of ssl/internal.h and move most
symbols to namespace bssl, so we can start using C++ helpers and
destructors without worry.

Complications:

- Public API functions must be extern "C" and match their declaration in
  ssl.h, which is unnamespaced. C++ really does not want you to
  interleave namespaced and unnamespaced things. One can actually write
  a namespaced extern "C" function, but this means, from C++'s
  perspective, the function is namespaced. Trying to namespace the
  public header would worked but ended up too deep a rabbithole.

- Our STACK_OF macros do not work right in namespaces.

- The typedefs for our exposed but opaque types are visible in the
  header files and copied into consuming projects as forward
  declarations. We ultimately want to give SSL a destructor, but
  clobbering an unnamespaced ssl_st::~ssl_st seems bad manners.

- MSVC complains about ambiguous names if one typedefs SSL to bssl::SSL.

This CL opts for:

- ssl/*.cc must begin with #define BORINGSSL_INTERNAL_CXX_TYPES. This
  informs the public headers to create forward declarations which are
  compatible with our namespaces.

- For now, C++-defined type FOO ends up at bssl::FOO with a typedef
  outside. Later I imagine we'll rename many of them.

- Internal functions get namespace bssl, so we stop worrying about
  stomping the tls1_prf symbol. Exported C functions are stuck as they
  are. Rather than try anything weird, bite the bullet and reorder files
  which have a mix of public and private functions. I expect that over
  time, the public functions will become fairly small as we move logic
  to more idiomatic C++.

  Files without any public C functions can just be written normally.

- To avoid MSVC troubles, some bssl types are renamed to CPlusPlusStyle
  in advance of them being made idiomatic C++.

Bug: 132
Change-Id: Ic931895e117c38b14ff8d6e5a273e868796c7581
Reviewed-on: https://boringssl-review.googlesource.com/18124
Reviewed-by: David Benjamin <davidben@google.com>
2017-07-19 19:10:59 +00:00
Steven Valdez
0e4a448ab8 Add ClientHello no_session_id variant.
Change-Id: I3d249582dea871d7b1c078a6b5f57679037d1b8f
Reviewed-on: https://boringssl-review.googlesource.com/17984
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
2017-07-18 19:58:10 +00:00
David Benjamin
71dfad4d10 Add new functions for configuring the client CA list.
This is needed to switch Chromium's SSLServerSocket and parts of
Conscrypt to CRYPTO_BUFFER.

Bug: 54
Change-Id: Iacd417970607bc1a162057676b576956a3bdfa3f
Reviewed-on: https://boringssl-review.googlesource.com/17965
Reviewed-by: Adam Langley <agl@google.com>
2017-07-17 22:34:04 +00:00
David Benjamin
3a1dd46e4e Add async certificate verification callback.
This also serves as a certificate verification callback for
CRYPTO_BUFFER-based consumers. Remove the silly
SSL_CTX_i_promise_to_verify_certs_after_the_handshake placeholder.

Bug: 54, chromium:347402
Change-Id: I4c6b445cb9cd7204218acb2e5d1625e6f37aff6f
Reviewed-on: https://boringssl-review.googlesource.com/17964
Reviewed-by: David Benjamin <davidben@google.com>
2017-07-17 20:55:23 +00:00
David Benjamin
7e9e06a739 Use OPENSSL_UNUSED in OPENSSL_COMPILE_ASSERT.
This would also have fixed the Windows clang issues. Those kicked in
because Windows clang defines __clang__ and not __GNUC__, but
OPENSSL_UNUSED accounts for this. It's also shorter.

Change-Id: I75bc17bbb789c5b78a7a369c43194e146739f574
Reviewed-on: https://boringssl-review.googlesource.com/18004
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-07-17 20:53:15 +00:00
Steven Valdez
dbe01585ba Implement ContentType TLS 1.3 variant.
This implements PR #1051
(https://github.com/tlswg/tls13-spec/pull/1051).

Local experiments were not able to replicate the claims in the PR, but
implement this anyway for comparison purposes.

Change-Id: Ic9baf5e671f9a44565020466a553dd08f5ec0f1b
Reviewed-on: https://boringssl-review.googlesource.com/17844
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-07-14 19:48:00 +00:00
David Benjamin
81a5df4d60 Switch ssl_ecdh to C++.
The EC_POINT munging is sufficiently heavy on the goto err that I went
ahead and tidied it up.

Bug: 132
Change-Id: I7a3b3b3f166e39e4559acec834dd8e1ea9ac8620
Reviewed-on: https://boringssl-review.googlesource.com/17747
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-07-13 15:26:03 +00:00
David Benjamin
e8703a3708 Switch a number of files to C++.
http://i1.kym-cdn.com/photos/images/original/000/242/631/382.gif

In the first step, switch C files to C++ individually, keeping
everything in internal.h C-compatible. We'll make minimal changes needed
to get things compiling (notably a lot of goto errs will need to turn to
bssl::UniquePtr right away), but more aggressive changes will happen in
later steps.

(To avoid a rebase, I'm intentionally avoiding files that would conflict
with CLs in flight right now.)

Bug: 132
Change-Id: Id4cfd722e7b57d1df11f27236b4658b5d39b5fd2
Reviewed-on: https://boringssl-review.googlesource.com/17667
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>
2017-07-12 20:54:02 +00:00
David Benjamin
a93a68d3cd Fix comment for SSL_ERROR_PENDING_CERTIFICATE.
As of 958346a5e7, the callback is called
multiple times.

Change-Id: I40dafeb9f14de7d016644313ef137a0c85f0a24d
Reviewed-on: https://boringssl-review.googlesource.com/17725
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-07-12 20:11:04 +00:00
Steven Valdez
52586f952e Adding TLS 1.3 variant to SSL*.
Change-Id: I3de3c48a1de59c2b8de348253ce62a648aa6d6eb
Reviewed-on: https://boringssl-review.googlesource.com/17724
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>
2017-07-11 19:41:37 +00:00
Steven Valdez
520e1220bb Implement experimental alternate encoding of TLS 1.3.
TLS 1.3 deployment is currently blocked by buggy middleboxes
throughout the ecosystem. As an experiment to better understand these bugs
and the problems they are causing, implement TLS 1.3 variants with
alternate encodings. These are still the same protocol, only encoded
slightly differently. We will use what we learn from these experiments to
guide the TLS 1.3 deployment strategy and proposals to the IETF, if any.

These experiments only target the basic 1-RTT TLS 1.3 handshake. Based on
what we learn from this experiment, we may try future variations to
explore 0-RTT and HelloRetryRequest.

When enabled, the server supports all TLS 1.3 variants while the client
is configured to use a particular variant.

Change-Id: I532411d1abc41314dc76acce0246879b754b4c61
Reviewed-on: https://boringssl-review.googlesource.com/17327
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>
2017-07-10 18:15:08 +00:00
David Benjamin
be483dbe2d Revise SSL_CTX_sess_set_new_cb documentation.
This is a bit verbose, but this API is goofy and causes a lot of
confusion. This may be clearer.

Change-Id: I9affff99b838958058e56ee3062521421c9accc5
Reviewed-on: https://boringssl-review.googlesource.com/17645
Reviewed-by: David Benjamin <davidben@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
2017-07-10 16:37:21 +00:00
David Benjamin
04017c17db Overhaul session resumption documentation.
This has come up a few times and our docs aren't great. This hopefully
describes the sharp edges better.

Change-Id: I5d4044449f74ec116838fd1bba629cd90dc0d1ac
Reviewed-on: https://boringssl-review.googlesource.com/17504
Reviewed-by: Adam Langley <agl@google.com>
2017-07-05 21:40:20 +00:00
Piotr Sikora
06a6ed0170 Clarify use of |SSL_VERIFY_FAIL_IF_NO_PEER_CERT| flag.
Change-Id: I819a5b565e4380f3d816a2e4a68572935c612eae
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
Reviewed-on: https://boringssl-review.googlesource.com/17564
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>
2017-07-05 16:05:03 +00:00
Martin Kreichgauer
74bce29965 Change EVP_AEAD_CTX_seal_scatter to support an additional plaintext input.
Change-Id: I7e2fc8588d799d01d94cb5d94e49b53b367380ab
Reviewed-on: https://boringssl-review.googlesource.com/17344
Reviewed-by: Adam Langley <agl@google.com>
2017-06-27 23:09:31 +00:00
David Benjamin
5aaaa98f8c Detect WatchGuard's TLS 1.3 interference failure mode.
WatchGuard's bug is very distinctive. Report a dedicated error code out
of BoringSSL so we can better track this.

Bug: chromium:733223
Change-Id: Ia42abd8654e7987b1d43c63a4f454f35f6aa873b
Reviewed-on: https://boringssl-review.googlesource.com/17328
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>
2017-06-22 19:49:23 +00:00
David Benjamin
bfd94db72c Trim RSA_METHOD and ECDSA_METHOD.
Consumers should now all be using a pattern that allows us to remove
unset fields from the struct.

Change-Id: Ia3cf4941589d624cf25c5173501bedeab73fb7b8
Reviewed-on: https://boringssl-review.googlesource.com/17326
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-06-22 19:06:29 +00:00
David Benjamin
6fff386492 Support standard RFC cipher suite names alongside OpenSSL ones.
Both Conscrypt and Netty have a lot of logic to map between the two
kinds of names. WebRTC needed an SSL_CIPHER_get_rfc_name for something.
Just have both in the library. Also deprecate SSL_CIPHER_get_rfc_name
in favor of SSL_CIPHER_standard_name, which matches upstream if built
with enable-ssl-trace. And, unlike SSL_CIPHER_get_rfc_name, this does
not require dealing with the malloc.

(Strangely this decreases bssl's binary size, even though we're carrying
more strings around. It seems the old SSL_CIPHER_get_rfc_name was
somewhat large in comparison. Regardless, a consumer that disliked 30
short strings probably also disliked the OpenSSL names. That would be
better solved by opaquifying SSL_CIPHER and adding a less stringy API
for configuring cipher lists. That's something we can explore later if
needed.)

I also made the command-line tool print out the standard names since
they're more standard. May as well push folks towards those going
forward.

Change-Id: Ieeb3d63e67ef4da87458e68d130166a4c1090596
Reviewed-on: https://boringssl-review.googlesource.com/17324
Reviewed-by: Robert Sloan <varomodt@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>
2017-06-22 02:45:37 +00:00
David Benjamin
fc08dfc4cd Rename {ssl,ctx}->{min,max}_version.
These are not the true version filters due to SSL_OP_NO_* filters.

Change-Id: I4c2db967d885f7c1875a3e052c5b02ea8d612fe1
Reviewed-on: https://boringssl-review.googlesource.com/17266
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-06-20 19:37:43 +00:00
David Benjamin
4414874f1f Simplify ssl_private_key_* state machine points.
The original motivation behind the sign/complete split was to avoid
needlessly hashing the input on each pass through the state machine, but
we're payload-based now and, in all cases, the payload is either cheap
to compute or readily available. (Even the hashing worry was probably
unnecessary.)

Tweak ssl_private_key_{sign,decrypt} to automatically call
ssl_private_key_complete as needed and take advantage of this in the
handshake state machines:

- TLS 1.3 signing now computes the payload each pass. The payload is
  small and we're already allocating a comparable-sized buffer each
  iteration to hold the signature. This shouldn't be a big deal.

- TLS 1.2 decryption code still needs two states due to reading the
  message (fixed in new state machine style), but otherwise it just
  performs cheap idempotent tasks again. The PSK code is reshuffled to
  guarantee the callback is not called twice (though this was impossible
  anyway because we don't support RSA_PSK).

- TLS 1.2 CertificateVerify signing is easy as the transcript is readily
  available. The buffer is released very slightly later, but it
  shouldn't matter.

- TLS 1.2 ServerKeyExchange signing required some reshuffling.
  Assembling the ServerKeyExchange parameters is moved to the previous
  state. The signing payload has some randoms prepended. This is cheap
  enough, but a nuisance in C. Pre-prepend the randoms in
  hs->server_params.

With this change, we are *nearly* rid of the A/B => same function
pattern.

BUG=128

Change-Id: Iec4fe0be7cfc88a6de027ba2760fae70794ea810
Reviewed-on: https://boringssl-review.googlesource.com/17265
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-06-20 19:37:05 +00:00
Martin Kreichgauer
babcac1c6f Document error behavior of AEAD seal/open methods.
Change-Id: Ic2eae037d50de4af67f6cbe888e16d507ab674d8
Reviewed-on: https://boringssl-review.googlesource.com/17224
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2017-06-20 19:01:02 +00:00
David Benjamin
9961dff055 Unwind V2ClientHello counters.
It does not appear removing support for these is feasible right now. :-(

Change-Id: I99521ba6c141855b5140d98bce445d7e62415661
Reviewed-on: https://boringssl-review.googlesource.com/17251
Reviewed-by: David Benjamin <davidben@google.com>
2017-06-16 20:24:00 +00:00
David Benjamin
0d1730ddf1 Squash together states in the TLS 1.2 server Certificate flight.
We've got an asynchronous ServerKeyExchange state in the middle that
complicates things a bit, but this is still a little tighter.

BUG=128

Change-Id: I4ee2e3b85e677c9555d2fbddd387c12d41ab2b54
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2017-06-16 20:07:41 +00:00
David Benjamin
b5f55c3afb Squash together TLS 1.2 states for server Finished block.
We can take advantage of our flight-by-flight model.

BUG=128

Change-Id: If27a5b6d88055da71199ef672d9c71969925aca9
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2017-06-16 20:07:23 +00:00
David Benjamin
ca7435822f Test SSL_select_next_proto and SSL_get_fd.
Free code coverage. Also rename things in SSL_select_next_proto so it
works for NPN and ALPN. (I found some code which uses it for ALPN.)

Change-Id: I8d06b768f9484dc3eda1a20506ec84ec3ddbc883
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2017-06-16 13:47:04 +00:00
Steven Valdez
e831a81518 Adding support for sending early data on the client.
BUG=76

Change-Id: If58a73da38e46549fd55f84a9104e2dfebfda43f
Reviewed-on: https://boringssl-review.googlesource.com/14164
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2017-06-15 19:34:59 +00:00
David Benjamin
b529253bea Implement scrypt from RFC 7914.
This imports upstream's scrypt implementation, though it's been heavily
revised. I lost track of words vs. blocks vs. bigger blocks too many
times in the original code and introduced a typedef for the fixed-width
Salsa20 blocks. The downside is going from bytes to blocks is a bit
trickier, so I took advantage of our little-endian assumption.

This also adds an missing check for N < 2^32. Upstream's code is making
this assumption in Integerify. I'll send that change back upstream. I've
also removed the weird edge case where a NULL out_key parameter means to
validate N/r/p against max_mem and nothing else. That's just in there to
get a different error code out of their PKCS#12 code.

Performance-wise, the cleanup appears to be the same (up to what little
precision I was able to get here), but an optimization to use bitwise
AND rather than modulus makes us measurably faster. Though scrypt isn't
a fast operation to begin with, so hopefully it isn't anyone's
bottleneck.

This CL does not route scrypt up to the PKCS#12 code, though we could
write our own version of that if we need to later.

BUG=chromium:731993

Change-Id: Ib2f43344017ed37b6bafd85a2c2b103d695020b8
Reviewed-on: https://boringssl-review.googlesource.com/17084
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2017-06-12 20:32:21 +00:00
David Benjamin
19670949ca Align EVP_PKEY Ed25519 API with upstream.
Rather than adding a new mode to EVP_PKEY_CTX, upstream chose to tie
single-shot signing to EVP_MD_CTX, adding functions which combine
EVP_Digest*Update and EVP_Digest*Final. This adds a weird vestigial
EVP_MD_CTX and makes the signing digest parameter non-uniform, slightly
complicating things. But it means APIs like X509_sign_ctx can work
without modification.

Align with upstream's APIs. This required a bit of fiddling around
evp_test.cc. For consistency and to avoid baking details of parameter
input order, I made it eagerly read all inputs before calling
SetupContext. Otherwise which attributes are present depend a lot on the
shape of the API we use---notably the NO_DEFAULT_DIGEST tests for RSA
switch to failing before consuming an input, which is odd.

(This only matters because we have some tests which expect the operation
to abort the operation early with parameter errors and match against
Error. Those probably should not use FileTest to begin with, but I'll
tease that apart a later time.)

Upstream also named NID_Ed25519 as NID_ED25519, even though the
algorithm is normally stylized as "Ed25519". Switch it to match.

Change-Id: Id6c8f5715930038e754de50338924d044e908045
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2017-06-12 12:04:11 +00:00
Martin Kreichgauer
18d9f28f0d Add EVP_AEAD_CTX_{seal_scatter,open_gather}.
These behave like EVP_AEAD_CTX_{seal,open} respectively, but receive
ciphertext and authentication tag as separate arguments, rather than one
contiguous out or in buffer.

Change-Id: Ia4f1b83424bc7067c55dd9e5a68f18061dab4d07
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2017-06-09 23:10:49 +00:00
David Benjamin
1845d0dbdb Remove some dead code from crypto/asn1.
Change-Id: I36d90356550d8a377af0dd248c6ec72bcdde4351
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2017-06-09 19:58:38 +00:00
David Benjamin
2dfa1ba680 Delete some dead code from crypto/x509.
These are never referenced within the library or externally. Some of the
constants have been unused since SSLeay.

Change-Id: I597511208dab1ab3816e5f730fcadaea9a733dff
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2017-06-09 19:58:08 +00:00
David Benjamin
5e61d533c9 Document support status of the legacy ASN.1 code.
Change-Id: Ie0565b8b819b9fd837caf723d035866facc9543c
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2017-06-09 19:27:33 +00:00
David Benjamin
42adba5173 Trim unused declarations in pem.h.
None of these declarations are ever defined or constants used.

Change-Id: Id71ed5f02f9972d375845eacd9ce290a64b1c525
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2017-06-09 15:32:59 +00:00
David Benjamin
3b33f3eb2d Set static armcaps based on __ARM_FEATURE_CRYPTO.
Originally we had some confusion around whether the features could be
toggled individually or not. Per the ARM C Language Extensions doc[1],
__ARM_FEATURE_CRYPTO implies the "crypto extension" which encompasses
all of them. The runtime CPUID equivalent can report the features
individually, but it seems no one separates them in practice, for now.
(If they ever do, probably there'll be a new set of #defines.)

[1] http://infocenter.arm.com/help/topic/com.arm.doc.ihi0053c/IHI0053C_acle_2_0.pdf

Change-Id: I12915dfc308f58fb005286db75e50d8328eeb3ea
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2017-06-09 00:29:10 +00:00
Adam Langley
f64a6eeaf0 Switch to new delocate tool.
Most importantly, this version of delocate works for ppc64le. It should
also work for x86-64, but will need significant testing to make sure
that it covers all the cases that the previous delocate.go covered.

It's less stringtastic than the old code, however the parser isn't as
nice as I would have liked. I thought that the reason we put up with
AT&T syntax with Intel is so that assembly syntax could be somewhat
consistent across platforms. At least for ppc64le, that does not appear
to be the case.

Change-Id: Ic7e3c6acc3803d19f2c3ff5620c5e39703d74212
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2017-05-30 18:00:16 +00:00
Steven Valdez
2f3404bb81 Enforce incrementing counter for TLS 1.2 AES-GCM.
Change-Id: I7e790bc176369f2a57cc486c3dc960971faf019d
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2017-05-26 20:06:36 +00:00
David Benjamin
806e18c022 Define OPENSSL_UNUSED for __clang__ as well.
Windows Clang needs this in the stack case too, but it doesn't define
__GNUC__ since it's emulating MSVC.

Change-Id: I646550ca95240e80822adddc2b53c3b58c2ec4a6
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2017-05-25 17:01:16 +00:00
David Benjamin
d94682dce5 Remove ex_data's dup hook.
The only place it is used is EC_KEY_{dup,copy} and no one calls that
function on an EC_KEY with ex_data. This aligns with functions like
RSAPublicKey_dup which do not copy ex_data. The logic is also somewhat
subtle in the face of malloc errors (upstream's PR 3323).

In fact, we'd even changed the function pointer signature from upstream,
so BoringSSL-only code is needed to pass this pointer in anyway. (I
haven't switched it to CRYPTO_EX_unused because there are some callers
which pass in an implementation anyway.)

Note, in upstream, the dup hook is also used for SSL_SESSIONs when those
are duplicated (for TLS 1.2 ticket renewal or TLS 1.3 resumption). Our
interpretation is that callers should treat those SSL_SESSIONs
equivalently to newly-established ones. This avoids every consumer
providing a dup hook and simplifies the interface.

(I've gone ahead and removed the TODO(fork). I don't think we'll be able
to change this API. Maybe introduce a new one, but it may not be worth
it? Then again, this API is atrocious... I've never seen anyone use argl
and argp even.)

BUG=21

Change-Id: I6c9e9d5a02347cb229d4c084c1e85125bd741d2b
Reviewed-on: https://boringssl-review.googlesource.com/16344
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2017-05-23 22:43:59 +00:00
David Benjamin
01f8a8c2d5 Convert stack.h to use inline functions.
Instead of a script which generates macros, emit static inlines in
individual header (or C files). This solves a few issues with the
original setup:

- The documentation was off. We match the documentation now.

- The stack macros did not check constness; see some of the fixes in
  crypto/x509.

- Type errors did not look like usual type errors.

- Any type which participated in STACK_OF had to be made partially
  public. This allows stack types to be defined an internal header or
  even an individual file.

- One could not pass sk_FOO_free into something which expects a function
  pointer.

Thanks to upstream's 411abf2dd37974a5baa54859c1abcd287b3c1181 for the
idea.

Change-Id: Ie5431390ccad761c17596b0e93941b0d7a68f904
Reviewed-on: https://boringssl-review.googlesource.com/16087
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2017-05-22 15:06:04 +00:00
David Benjamin
d55bd797eb Fix SSL_COMP_get_compression_methods type signature.
We returned the wrong type, but with a typedef which made it void*. In
C++, void* to T* doesn't implicitly convert, so it doesn't quite work
right. Notably, Node passes it into sk_SSL_COMP_zero. The sk_* macros
only weakly typecheck right now, but a pending CL converts them to
proper functions.

Change-Id: I635d1e39e4f4f11b2b7bf350115a7f1b1be30e4f
Reviewed-on: https://boringssl-review.googlesource.com/16447
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2017-05-18 15:49:31 +00:00
Steven Valdez
467d3220f8 Add FIPS-compliant key generation that calls check_fips for RSA and EC.
Change-Id: Ie466b7b55bdd679c5baf2127bd8de4a5058fc3b7
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2017-05-17 16:30:48 +00:00
Adam Langley
208e239371 Move OPENSSL_ASAN to base.h.
Saves having it in several places.

Change-Id: I329e1bf4dd4a7f51396e36e2604280fcca32b58c
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2017-05-16 20:16:52 +00:00
Alessandro Ghedini
48b6b8f00f Add SSL_CIPHER_has_SHA384_HMAC.
Change-Id: I7d8f9098038a82b29ab0eff8a3258975d8804a68
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2017-05-15 16:36:34 +00:00
David Benjamin
1d59f6e3e2 Add a flag to toggle the buggy RSA parser.
It's about time we got rid of this. As a first step, introduce a flag,
so that some consumers may stage this change in appropriately.

BUG=chromium:534766,chromium:532048

Change-Id: Id53f0bacf5bdbf85dd71d1262d9f3a9ce3c4111f
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2017-05-10 15:49:33 +00:00
David Benjamin
93731d9dd4 Remove old SSL min/max version functions.
I think I've finally cleared this out. Everything should be using
upstream's longer 'proto' names now.

Change-Id: I6ab283dca845fdc184f3764223d027acba59ca91
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2017-05-09 19:25:21 +00:00
Adam Langley
4249481a66 Add EVP_AEAD_CTX_[new|free] and UniquePtr support.
EVP_AEAD_CTX is otherwise a pain to use from C++ when you need to keep
it around.

Change-Id: I1dff926b33a3246680be21b89b69dfb336d25cd5
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2017-05-05 21:29:44 +00:00
David Benjamin
61ae41f198 Use a minimal totient when generating RSA keys.
FIPS 186-4 wants d = e^-1 (mod lcm(p-1, q-1)), not (p-1)*(q-1).

Note this means the size of d might reveal information about p-1 and
q-1. However, we do operations with Chinese Remainder Theorem, so we
only use d (mod p-1) and d (mod q-1) as exponents. Using a minimal
totient does not affect those two values.

This removes RSA_recover_crt_params. Using a minimal d breaks (or rather
reveals an existing bug in) the function.

While I'm here, rename those ridiculous variable names.

Change-Id: Iaf623271d49cd664ba0eca24aa25a393f5666fac
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2017-05-04 19:16:48 +00:00
David Benjamin
073391f7d6 Detach encrypt and keygen hooks from RSA_METHOD.
Nothing is using them. For encrypt, there's generally no need to swap
out public key operations. keygen seems especially pointless as one
could just as easily call the other function directly.

The one behavior change is RSA_encrypt now gracefully detects if called
on an empty RSA, to match the other un-RSA_METHOD-ed functions which had
similar treatments. (Conscrypt was filling in the encrypt function
purely to provide a non-crashing no-op function. They leave the public
bits blank and pass their custom keys through sufficiently many layers
of Java crypto goo that it's not obvious whether this is reachable.)

We still can't take the function pointers out, but once
96bbe03dfd
trickles back into everything, we can finally prune RSA_METHOD.

Bump BORINGSSL_API_VERSION as a convenience so I can land the
corresponding removal in Conscrypt immediately.

Change-Id: Ia2ef4780a5dfcb869b224e1ff632daab8d378b2e
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2017-05-03 19:15:47 +00:00
David Benjamin
79d18bc4dd Add crypto/rsa-level RSA-PSS functions.
This allows us to implement RSA-PSS in the FIPS module without pulling
in EVP_PKEY. It also allows people to use RSA-PSS on an RSA*.
Empirically folks seem to use the low-level padding functions a lot,
which is unfortunate.

This allows us to remove a now redundant length check in p_rsa.c.

Change-Id: I5270e01c6999d462d378865db2b858103c335485
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2017-05-02 20:30:24 +00:00
David Benjamin
8ee0d14795 Fix comment typo.
Thanks to Alex Gaynor for catching this.

Change-Id: I00e86f90a6ecb845393c0f4f9f8177a053645e70
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2017-05-02 14:07:33 +00:00
David Benjamin
91871018a4 Add an OPENSSL_ia32cap_get() function for C code.
OPENSSL_ia32cap_addr avoids any relocations within the module, at the
cost of a runtime TEXTREL, which causes problems in some cases.
(Notably, if someone links us into a binary which uses the GCC "ifunc"
attribute, the loader crashes.)

Fix C references of OPENSSL_ia32cap_addr with a function. This is
analogous to the BSS getters. A follow-up commit will fix perlasm with a
different scheme which avoids calling into a function (clobbering
registers and complicating unwind directives.)

Change-Id: I09d6cda4cec35b693e16b5387611167da8c7a6de
Reviewed-on: https://boringssl-review.googlesource.com/15525
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2017-04-27 20:34:23 +00:00
David Benjamin
a684152a2f Downgrade BN_kronecker to bn_jacobi and unexport.
We only ever compute it for odd (actually, prime) modulus as part of
BN_mod_sqrt.

If we cared, we could probably drop this from most binaries. This is
used to when modular square root needs Tonelli-Shanks.  Modular square
root is only used for compressed coordinates. Of our supported curves
(I'm handwaiving away EC_GROUP_new_curve_GFp here[*]), only P-224 needs
the full Tonelli-Shanks algorithm (p is 1 mod 8). That computes the
Legendre symbol a bunch to find a non-square mod p. But p is known at
compile-time, so we can just hard-code a sample non-square.

Sadly, BN_mod_sqrt has some callers outside of crypto/ec, so there's
also that. Anyway, it's also not that large of a function.

[*] Glancing through SEC 2 and Brainpool, secp224r1 is the only curve
listed in either document whose prime is not either 3 mod 4 or 5 mod 8.
Even 5 mod 8 is rare: only secp224k1. It's unlikely anyone would notice
if we broke annoying primes. Though OpenSSL does support "WTLS" curves
which has an additional 1 mod 8 case.

Change-Id: If36aa78c0d41253ec024f2d90692949515356cd1
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2017-04-27 20:29:47 +00:00
David Benjamin
0d5bf8d86d Document ERR_error_string_n standalone.
Also fully deprecate ERR_error_string. Even when passing an external
buffer, passing the length explicitly is better.

Change-Id: Id2eb5723410f4564ef5e27c54ba79672133368e7
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2017-04-27 20:26:22 +00:00
Steven Valdez
1d134eee9a Add aes-(128|256)-gcm-fips-testonly mode for FIPS compatibility.
These modes do internal random IV generation and are unsuitable for
non-testing purposes.

Change-Id: I14b98af8f6cf43b4fc835a2b04a9b0425b7651b7
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2017-04-21 22:45:39 +00:00
Steven Valdez
8ebc9eafec Update BN_enhanced_miller_rabin_primality_test to enforce preconditions and accept BN_prime_checks.
Change-Id: Ie4ac57d39bca46db33280c500a2092350ccdae67
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2017-04-21 22:24:01 +00:00
David Benjamin
fc674c82c3 Unexport bn_correct_top and bn_wexpand.
Thanks to Rob Sloan for clearing out Android's uses of these functions.
I forgot we can hide these now.

BUG=97

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Reviewed-by: Steven Valdez <svaldez@google.com>
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2017-04-21 19:03:01 +00:00
David Benjamin
378a08aa31 Add PKCS7_get_raw_certificates.
This is a version of PKCS7_get_certificates but does not require
crypto/x509.

BUG=54

Change-Id: I20152a8d1f3ed866d47e41fe576ea9f442490224
Reviewed-on: https://boringssl-review.googlesource.com/15129
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>
2017-04-19 17:30:31 +00:00
David Benjamin
6fdea2aba9 Move PKCS#7 functions into their own directory.
A follow-up change will add a CRYPTO_BUFFER variant. This makes the
naming match the header and doesn't require including x509.h. (Though
like ssl.h and pkcs8.h, some of the functions are implemented with code
that depends on crypto/x509.)

Change-Id: I5a7de209f4f775fe0027893f711326d89699ca1f
Reviewed-on: https://boringssl-review.googlesource.com/15128
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-04-19 17:24:51 +00:00