Commit Graph

1686 Commits

Author SHA1 Message Date
Brian Smith
61a7ef4f2b Reduce the input base |a| in BN_mod_exp_mont_consttime for RSAZ.
Note that this adds new non-constant-time code into the RSAZ-based
code path.

Change-Id: Ibca3bc523ede131b55c70ac5066c0014df1f5a70
Reviewed-on: https://boringssl-review.googlesource.com/12525
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-12-14 22:05:12 +00:00
Martin Kreichgauer
36ca21415a crypto/rand: Fix a crash bug in RAND_enable_fork_unsafe_buffering.
Change-Id: Ifff59b1518f513c1be70e4e0d4ed3430741d0a5e
Reviewed-on: https://boringssl-review.googlesource.com/12860
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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2016-12-14 21:59:18 +00:00
Brian Smith
4cc1ccd3fc Add minimal tests for 1024-bit RSAZ BN_mod_exp_mont_consttime.
The input base, |a|, isn't reduced mod |m| in the RSAZ case so
incorrect results are given for out-of-range |a| when the RSAZ
implementation is used. On the other hand, the RSAZ implementation is
more correct as far as constant-time operation w.r.t. |a| is concerned.

Change-Id: Iec4d0195cc303ce442ce687a4b7ea42fb19cfd06
Reviewed-on: https://boringssl-review.googlesource.com/12524
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-12-14 20:41:19 +00:00
David Benjamin
703aa16003 Import a test vector from upstream.
The original bug only affected their big-endian code which we don't
have, but import the test vector anyway. Imported from upstream's
b47f116b1e02d20b1f8a7488be5a04f7cf5bc712.

Change-Id: I349e41d87006533da0e18c948f9cc7dd15f42a44
Reviewed-on: https://boringssl-review.googlesource.com/12820
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-12-14 17:48:36 +00:00
David Benjamin
fa99197b9d perlasm/x86_64-xlate.pl: refine sign extension in ea package.
$1<<32>>32 worked fine with either 32- or 64-bit perl for a good while,
relying on quirk that [pure] 32-bit perl performed it as $1<<0>>0.  But
this apparently changed in some version past minimally required 5.10,
and operation result became 0. Yet, it went unnoticed for another while,
because most perl package providers configure their packages with
-Duse64bitint option.

(Imported from upstream's 82e089308bd9a7794a45f0fa3973d7659420fbd8.)

Change-Id: Ie9708bb521c8d7d01afd2e064576f46be2a811a5
Reviewed-on: https://boringssl-review.googlesource.com/12821
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Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-12-14 17:36:29 +00:00
David Benjamin
fcd714d52b Add CBS functions for working with BIT STRINGs.
Querying a bit in a BIT STRING is a little finicky. Add some functions
to help with this.

Change-Id: I813b9b6f2d952d61d8717b47bca1344f0ad4b7d1
Reviewed-on: https://boringssl-review.googlesource.com/12800
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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2016-12-14 17:25:30 +00:00
Adam Langley
d515722d22 Don't depend on the X509 code for getting public keys.
This change removes the use of |X509_get_pubkey| from the TLS <= 1.2
code. That function is replaced with a shallow parse of the certificate
to extract the public key instead.

Change-Id: I8938c6c5a01b32038c6b6fa58eb065e5b44ca6d2
Reviewed-on: https://boringssl-review.googlesource.com/12707
Reviewed-by: Adam Langley <agl@google.com>
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2016-12-13 21:27:31 +00:00
David Benjamin
9434b6bb5b Fix BN_kronecker on unreachable BN_rshift error.
The error value is -2, but at this point ret has already been set to
some running answer and must be reset to -2.

(This is unreachable. BN_rshift only fails on caller or malloc error,
and it doesn't need to malloc when running in-place.)

Change-Id: I33930da84b00d1906bdee9d09b9504ea8121fac4
Reviewed-on: https://boringssl-review.googlesource.com/12681
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-12-12 21:40:20 +00:00
Matthew Braithwaite
f440e827f1 Remove New Hope key agreement.
Change-Id: Iaac633616a54ba1ed04c14e4778865c169a68621
Reviewed-on: https://boringssl-review.googlesource.com/12703
Reviewed-by: David Benjamin <davidben@google.com>
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2016-12-10 01:06:31 +00:00
Matthew Braithwaite
651aaefb44 Remove CECPQ1 (experimental post-quantum key agreement).
Change-Id: Ie947ab176d10feb709c6e135d5241c6cf605b8e8
Reviewed-on: https://boringssl-review.googlesource.com/12700
Reviewed-by: David Benjamin <davidben@google.com>
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2016-12-09 19:16:56 +00:00
Adam Langley
f5b30cc28c Add a simplified SSL BIO for curl.
A recent change to curl[1] added support for HTTPS proxies, which
involves running a TLS connection inside another TLS connection. This
was done by using SSL BIOs, which we removed from BoringSSL for being
crazy.

This change adds a stripped-down version of the SSL BIO to decrepit in
order to suport curl.

[1] cb4e2be7c6

Change-Id: I9cb8f2db5b28a5a70724f6f93544297c380ac124
Reviewed-on: https://boringssl-review.googlesource.com/12631
Reviewed-by: Adam Langley <agl@google.com>
2016-12-08 20:33:22 +00:00
Adam Langley
c8006be227 Fix X509_parse_from_buffer when failing to parse.
d2i_X509 will free an existing |X509*| on parse failure. Thus
|X509_parse_from_buffer| would double-free the result on error.

Change-Id: If2bca2f1e1895bc426079f6ade4b82008707888d
Reviewed-on: https://boringssl-review.googlesource.com/12635
Reviewed-by: Adam Langley <agl@google.com>
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2016-12-08 16:20:49 +00:00
David Benjamin
82bbe5503d Add tests for BIO pairs.
Change-Id: I6514d68435ac4b7e2c638c7612b57bde5886bbba
Reviewed-on: https://boringssl-review.googlesource.com/12629
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-12-08 00:55:17 +00:00
David Benjamin
aac1e2dd73 Remove the remaining bssl::Main wrappers.
We've taken to writing bssl::UniquePtr in full, so it's not buying
us much.

Change-Id: Ia2689366cbb17282c8063608dddcc675518ec0ca
Reviewed-on: https://boringssl-review.googlesource.com/12628
Reviewed-by: David Benjamin <davidben@google.com>
2016-12-08 00:54:17 +00:00
David Benjamin
93c332b086 Tighten BIO_new_bio_pair.
This can be a bit shorter.

Change-Id: Ibccd1e90e7c0842d0d3951a070a68e075136657c
Reviewed-on: https://boringssl-review.googlesource.com/12627
Reviewed-by: Adam Langley <agl@google.com>
2016-12-07 23:58:40 +00:00
David Benjamin
ed1d288a91 Unwind all the zero-copy BIO pair machinery.
This was only used by Chromium and was since replaced with a custom BIO.
Though it meant a new ring buffer implementation, custom BIOs seem a
better solution for folks who wish to do particularly complicated
things, until the new SSL API is available. External-buffer BIO pairs
were effectively a really confusing and leaky abstraction over a ring
buffer anyway.

Change-Id: I0e201317ff87cdccb17b2f8c260ee5bb06c74771
Reviewed-on: https://boringssl-review.googlesource.com/12626
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-12-07 23:56:11 +00:00
Adam Langley
df447ba3a9 Add generic AES-GCM-SIV support.
AES-GCM-SIV is an AEAD with nonce-misuse resistance. It can reuse
hardware support for AES-GCM and thus encrypt at ~66% the speed, and
decrypt at 100% the speed, of AES-GCM.

See https://tools.ietf.org/html/draft-irtf-cfrg-gcmsiv-02

This implementation is generic, not optimised, and reuses existing AES
and GHASH support as much as possible. It is guarded by !OPENSSL_SMALL,
at least for now.

Change-Id: Ia9f77b256ef5dfb8588bb9ecfe6ee0e827626f57
Reviewed-on: https://boringssl-review.googlesource.com/12541
Reviewed-by: Adam Langley <agl@google.com>
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2016-12-07 00:13:50 +00:00
Adam Langley
7b668a873e Enable getrandom for entropy gathering.
This change will cause getrandom to be used in preference to
/dev/urandom when supported by the kernel.

This will also cause BoringSSL-using processes to block until the
entropy pool is initialised on systems that support getrandom(2).

Change-Id: I2d3a17891502c85884c77138ef0f3a719d7ecfe6
Reviewed-on: https://boringssl-review.googlesource.com/12421
Reviewed-by: Adam Langley <agl@google.com>
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2016-12-06 19:37:08 +00:00
David Benjamin
7d7597840f Fix x509v3_cache_extensions locking.
Change-Id: Id976e5e5c03e9af7b59fda2429111e189b188f37
Reviewed-on: https://boringssl-review.googlesource.com/11245
Reviewed-by: Adam Langley <agl@google.com>
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2016-12-05 23:12:49 +00:00
Adam Langley
5fa2538162 Clean up the GHASH init function a little.
There only needs to be a single place where we do the generic
initialisation. All the processor-specific implementations can just
return early.

Change-Id: Ifd8a9c3bd7bec1ee8307aaa7bbeb9afe575e8a47
Reviewed-on: https://boringssl-review.googlesource.com/12540
Reviewed-by: Adam Langley <alangley@gmail.com>
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2016-12-05 21:49:47 +00:00
Adam Langley
abd36dd284 Set needed defines for UINT64_C in gcm_test.cc.
Change-Id: Ia38acd73e18a78b6bf9b9d10339f920b7f105c85
Reviewed-on: https://boringssl-review.googlesource.com/12601
Reviewed-by: Adam Langley <agl@google.com>
2016-12-05 21:46:52 +00:00
Adam Langley
64a8659b89 Rename BSWAP[48] to CRYPTO_bswap[48] and always define them.
Previously, gcm.c contained a lot of workarounds for cases where BSWAP8
wasn't defined. Rather than handle this in each place, just make it
always available.

While we're here, make these macros inline functions instead and rename
them to something less likely to collide.

Change-Id: I9f2602f8b9965c63a86b177a8a084afb8b53a253
Reviewed-on: https://boringssl-review.googlesource.com/12479
Commit-Queue: Adam Langley <alangley@gmail.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-12-05 21:37:16 +00:00
Adam Langley
c629e8b688 Split CRYPTO_ghash_init from CRYPTO_gcm128_init.
CRYPTO_ghash_init exposes the (often hardware accelerated) internals for
evaluating GHASH. These can be used for evaluating POLYVAL[1] on
platforms where we don't have dedicated code for it.

[1] https://tools.ietf.org/html/draft-irtf-cfrg-gcmsiv-02#section-3

Change-Id: Ida49ce4911f8657fa384b0bca968daa2ac6b26c1
Reviewed-on: https://boringssl-review.googlesource.com/12478
Reviewed-by: David Benjamin <davidben@google.com>
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2016-12-02 21:09:11 +00:00
Adam Langley
a00cafc50c Drop H (the key) from the GCM context.
The key is only needed during initialisation because after that point it
is implicit in the table of powers. So no need to keep it around. There
was a non-specific “haunted house” comment about not changing this, but
I've successfully tested with all the assembly versions so I think that
comment is no longer true.

Change-Id: Id110156afb528904f114d9a4ff2440e03a1a69b8
Reviewed-on: https://boringssl-review.googlesource.com/12477
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Reviewed-by: David Benjamin <davidben@google.com>
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2016-12-02 20:59:47 +00:00
Adam Langley
e8bbc6cf6c Assume little-endian in GCM code.
The GCM code has lots of cases of big-endian support left over from
OpenSSL. Since we don't support big-endian systems, drop that code.

Change-Id: I28eb95a9c235c6f705a145fbea72e7569dad2c70
Reviewed-on: https://boringssl-review.googlesource.com/12476
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-12-02 20:46:35 +00:00
David Benjamin
d8a268261d Simplify rotate_offset computation in EVP_tls_cbc_copy_mac.
Rather than Barrett reduction, we can just sample rotate_offset at the
point where we save the first byte of the MAC. Thanks to Andy Polyakov
for the idea in
https://github.com/openssl/openssl/pull/1027#issuecomment-263218179

Change-Id: If3a7c2d176406fc332ac512648e6f5ef4dc8b7e5
Reviewed-on: https://boringssl-review.googlesource.com/12475
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-12-01 22:02:03 +00:00
David Benjamin
a4ddb6e212 Remove unnecessary constant-time operation.
j and md_size are public values, so this can just be done directly. (If
they weren't, we'd have worse problems.) This makes the loop look the
same as the rotation loop below.

Change-Id: Ic75550ad4e40b2015668cb12c26ca2d20bd285b6
Reviewed-on: https://boringssl-review.googlesource.com/12474
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-12-01 21:54:45 +00:00
David Benjamin
029cce5cfd Tidy up EVP_tls_cbc_copy_mac a little.
Some declarations can be moved closer to use, etc.

Change-Id: Ifa9a51ad77639b94020b15478af234c82466390f
Reviewed-on: https://boringssl-review.googlesource.com/12473
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-12-01 21:53:29 +00:00
David Benjamin
aedf303cc2 Parse the entire PSK extension.
Although we ignore all but the first identity, keep clients honest by
parsing the whole thing. Also explicitly check that the binder and
identity counts match.

Change-Id: Ib9c4caae18398360f3b80f8db1b22d4549bd5746
Reviewed-on: https://boringssl-review.googlesource.com/12469
Reviewed-by: David Benjamin <davidben@google.com>
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2016-12-01 21:53:13 +00:00
Steven Valdez
a4ee74dadf Skipping early data on 0RTT rejection.
BUG=101

Change-Id: Ia1edbccee535b0bc3a0e18465286d5bcca240035
Reviewed-on: https://boringssl-review.googlesource.com/12470
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-12-01 20:16:08 +00:00
Adam Langley
509889d3d0 Sync with upstream's version of sha256-armv4.pl.
This change imports sha256-armv4.pl from upstream at rev 8d1ebff4. This
includes changes to remove the use of adrl, which is not supported by
Clang.

Change-Id: I429e7051d63b59acad21601e40883fc3bd8dd2f5
Reviewed-on: https://boringssl-review.googlesource.com/12480
Commit-Queue: Adam Langley <alangley@gmail.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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2016-11-30 17:37:24 +00:00
David Benjamin
f086df9f5f signed char => int8_t.
This code wants something which can represent -128..127 or so, not
something about characters.

Change-Id: Icdbfec370317a5e03803939a3b8d1555f8efff1d
Reviewed-on: https://boringssl-review.googlesource.com/12468
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-29 01:03:52 +00:00
David Benjamin
e4a9dbcf02 Minor formatting fixups.
clang-format mangled this a little.

Change-Id: Ic4d8de0e1f6e926efbe8d14e390fe874b4a7cdcb
Reviewed-on: https://boringssl-review.googlesource.com/12467
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-29 01:03:28 +00:00
David Benjamin
bfe5f08170 Rewrite EC_window_bits_for_scalar_size into a function.
The compiler should be plenty smart enough to decide whether to inline a
static function called only once. We don't need to resort to so
unreadable a ternary chain.

Change-Id: Iacc8e0c4147fc69008806a0cc36d9e632169601a
Reviewed-on: https://boringssl-review.googlesource.com/12466
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-29 01:01:28 +00:00
David Benjamin
c6d09e83c7 Check for BN_lshift failure in BN_sqrt.
Change-Id: I3350ff0e4ffe7495a83211b89c675a0125fb2f06
Reviewed-on: https://boringssl-review.googlesource.com/12465
Commit-Queue: David Benjamin <davidben@google.com>
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2016-11-29 00:55:56 +00:00
David Benjamin
1c68effac9 Fix error code for unreduced x.
EC_R_INVALID_COMPRESSED_POINT makes more sense than
EC_R_INVALID_COMPRESSION_BIT here.

Change-Id: I0dbdc91bab59843d5c04f2d0e97600fe7644753e
Reviewed-on: https://boringssl-review.googlesource.com/12464
Reviewed-by: Adam Langley <agl@google.com>
2016-11-29 00:55:04 +00:00
David Benjamin
14ebb4ff27 Don't compute the Kronecker symbol in ec_GFp_simple_set_compressed_coordinates.
If y is zero, there is no point with odd y, so the odd bit may not be
set, hence EC_R_INVALID_COMPRESSION_BIT. This code instead computed the
Kronecker symbol of x and changed the error code to
EC_R_INVALID_COMPRESSED_POINT if not a square.

As the comment says, this was (intended to be) unreachable. But it
seems x was a typo for tmp1. It dates to before upstream's
6fb60a84dd1ec81953917e0444dab50186617432, when BN_mod_sqrt gave
garbage if its input was not square. Now it emits BN_R_NOT_A_SQUARE.
Upstream's 48fe4d6233ac2d60745742a27f820dd88bc6689d then mapped
BN_R_NOT_A_SQUARE to EC_R_INVALID_COMPRESSED_POINT.

Change-Id: Id9e02fa1c154b61cc0c3a768c9cfe6bd9674c378
Reviewed-on: https://boringssl-review.googlesource.com/12463
Reviewed-by: Adam Langley <agl@google.com>
2016-11-29 00:36:04 +00:00
David Benjamin
bd691756f2 Test that BN_mod_sqrt detects quadratic non-residues.
Change-Id: I99abb8f99c060f0830c1df9cdbde159c85ccfe92
Reviewed-on: https://boringssl-review.googlesource.com/12462
Reviewed-by: Adam Langley <agl@google.com>
2016-11-29 00:24:43 +00:00
David Benjamin
55a1eccc0c Don't allow BN_mod_sqrt(0) to return P in tests.
Zero only has one allowed square root, not two.

Change-Id: I1dbd2137a7011d2f327b271b267099771e5499c3
Reviewed-on: https://boringssl-review.googlesource.com/12461
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-29 00:23:07 +00:00
Adam Langley
9b885c5d0f Don't allow invalid SCT lists to be set.
This change causes SSL_CTX_set_signed_cert_timestamp_list to check the
SCT list for shallow validity before allowing it to be set.

Change-Id: Ib8a1fe185224ff02ed4ce53a0109e60d934e96b3
Reviewed-on: https://boringssl-review.googlesource.com/12401
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2016-11-19 00:24:18 +00:00
Doug Kwan
7da8ea72a6 Add forward declaration to avoid a compiler warning
This prevents a compiler warning from breaking ppc64le build.

Change-Id: I6752109bd02c6d078e656f89327093f8fb13a125
Reviewed-on: https://boringssl-review.googlesource.com/12363
Reviewed-by: Adam Langley <agl@google.com>
2016-11-18 00:25:50 +00:00
Doug Kwan
5f04b6bc3a Add ppc64le vector implementation of SHA-1.
This change contains a C implementation of SHA-1 for POWER using
AltiVec. It is almost as fast as the scalar-only assembly implementation
for POWER/POWERPC family in OpenSSL but it is easier to maintain and it
allows error checking with tools like ASAN.

This is tested only for ppc64le. It may nor may not work for other
platforms in the POWER/POWERPC familiy.

Before:

SHA-1 @ 16 bytes: ~30 MB/s
SHA-1 @ 8K: ~140 MB/s

After:

SHA-1 @ 16 bytes: ~70 MB/s
SHA-1 @ 8K: ~480 MB/s

Change-Id: I790352e86d9c0cc4e1e57d11c5a0aa5b0780ca6b
Reviewed-on: https://boringssl-review.googlesource.com/12203
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2016-11-17 18:38:14 +00:00
David Benjamin
2aaaa16251 Depend all_tests on p256-x86_64_test.
Otherwise the run_tests target sometimes gets confused.

Change-Id: If49e945bf5137c68db4927ab0f9845d25be63bac
Reviewed-on: https://boringssl-review.googlesource.com/12315
Reviewed-by: Steven Valdez <svaldez@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
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2016-11-17 02:56:51 +00:00
David Benjamin
4008c7a80d Fix some more negative zeros and add tests for each case.
See https://github.com/openssl/openssl/pull/1672.

Change-Id: I4c93a568b9b7ce582b03e955d3aa9cb6b0e89794
Reviewed-on: https://boringssl-review.googlesource.com/12314
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2016-11-16 19:20:27 +00:00
David Benjamin
ca0b603153 Remove unnecessary BN_is_negative check in p256-x86_64_test.
A BN_ULONG[P256_LIMBS] can't represent a negative number and
bn_set_words won't produce one. We only need to compare against P.

Change-Id: I7bd1c9e8c162751637459f23f3cfc56884d85864
Reviewed-on: https://boringssl-review.googlesource.com/12304
Commit-Queue: David Benjamin <davidben@google.com>
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2016-11-16 19:19:38 +00:00
David Benjamin
dc16f38685 ec/ecp_nistz256: harmonize is_infinity with ec_GFp_simple_is_at_infinity.
RT#4625

(Imported from upstream's e3057a57caf4274ea1fb074518e4714059dfcabf.)

Add a test in ec_test to cover the ecp_nistz256_points_mul change. Also
revise the low-level infinity tests to cover the changes in
ecp_nistz256_point_add. Upstream's 'infty' logic was also cleaned up to
be simpler and take advantage of the only cases where |p| is infinity.

Change-Id: Ie22de834bf79ecb6191e824ad9fc1bd6f9681b8b
Reviewed-on: https://boringssl-review.googlesource.com/12225
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2016-11-16 18:16:54 +00:00
David Benjamin
e1cc35e581 Tolerate cipher changes on TLS 1.3 resumption as a client.
As a client, we must tolerate this to avoid interoperability failures
with allowed server behaviors.

BUG=117

Change-Id: I9c40a2a048282e2e63ab5ee1d40773fc2eda110a
Reviewed-on: https://boringssl-review.googlesource.com/12311
Reviewed-by: David Benjamin <davidben@google.com>
2016-11-16 13:27:07 +00:00
David Benjamin
bca451e085 Remove bssl::Main wrapper in ec_test.
We were using a fully-qualified name for nearly everything anyway.

Change-Id: Ia32c68975ed4126feeab7b420f12b726ad6b89b3
Reviewed-on: https://boringssl-review.googlesource.com/12226
Reviewed-by: Adam Langley <agl@google.com>
2016-11-15 18:06:51 +00:00
David Benjamin
e36888d91a Rename and document ecp_nistz256_mod_inverse.
The other field operations have an explicit _mont suffix to denote their
inputs and outputs are in the Montgomery domain, aside from
ecp_nistz256_neg which works either way. Do the same here.

Change-Id: I63741adaeba8140e29fb0b45dff72273e231add7
Reviewed-on: https://boringssl-review.googlesource.com/12224
Reviewed-by: Adam Langley <agl@google.com>
2016-11-15 17:07:20 +00:00
David Benjamin
dde19c6cdb Fix booth_recode_w5 comment.
The file is util-64.c in BoringSSL.

Change-Id: I51891103254ae1541ea4c30f92c41d5d47c2ba55
Reviewed-on: https://boringssl-review.googlesource.com/12223
Reviewed-by: Adam Langley <agl@google.com>
2016-11-15 17:06:27 +00:00
David Benjamin
4a9313a7e7 Add low-level p256-x86_64 tests.
For the most part, this is with random test data which isn't
particularly good. But we'll be able to add more interesting test
vectors as they come up.

Change-Id: I9c50db7ac2c4bf978d4901000ab32e3642aea82b
Reviewed-on: https://boringssl-review.googlesource.com/12222
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2016-11-15 17:05:01 +00:00
David Benjamin
28d1dc8c51 Perform stricter reduction in p256-x86_64-asm.pl.
Addition was not preserving inputs' property of being fully reduced.

Thanks to Brian Smith for reporting this.

(Imported from upstream's b62b2454fadfccaf5e055a1810d72174c2633b8f and
d3034d31e7c04b334dd245504dd4f56e513ca115.)

See also this thread.
https://mta.openssl.org/pipermail/openssl-dev/2016-August/008179.html

Change-Id: I3731f949e2e2ef539dec656c58f1820cc09a56a6
Reviewed-on: https://boringssl-review.googlesource.com/11409
Commit-Queue: David Benjamin <davidben@google.com>
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2016-11-15 16:26:52 +00:00
Steven Valdez
a833c357ed Update to TLS 1.3 draft 18.
This is the squash of the following CLs:
https://boringssl-review.googlesource.com/c/12021/9
https://boringssl-review.googlesource.com/c/12022/9
https://boringssl-review.googlesource.com/c/12107/19
https://boringssl-review.googlesource.com/c/12141/22
https://boringssl-review.googlesource.com/c/12181/33

The Go portions were written by Nick Harper

BUG=112

Change-Id: I375a1fcead493ec3e0282e231ccc8d7c4dde5063
Reviewed-on: https://boringssl-review.googlesource.com/12300
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2016-11-15 06:57:21 +00:00
Jinguang Dong
8499621d21 Check for i2d_name_canon failures in x509_name_canon.
Change-Id: I0e1d79e85a2d20ab4105b81d39cdbbd692ba67da
Reviewed-on: https://boringssl-review.googlesource.com/12221
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2016-11-11 10:45:03 +00:00
Adam Langley
a380f9d199 Always assume little-endian in Poly1305 reference code.
We don't support big-endian so this could only slow down whatever
platforms weren't listed in the #if.

Change-Id: Ie36f862663d947f591dd4896e6a2ab19122bbc0d
Reviewed-on: https://boringssl-review.googlesource.com/12202
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2016-11-10 22:34:03 +00:00
Adam Langley
e4f96d615c Align the non-vector Poly1305 structure.
The Poly1305 state defined in the header file is just a 512-byte buffer.
The vector code aligns to 64 bytes but the non-vector code did not.
Since we have lots of space to spare, this change causes the non-vector
code to also align to 64 bytes.

Change-Id: I77e26616a709e770d6eb23df47d9e292742625d7
Reviewed-on: https://boringssl-review.googlesource.com/12201
Commit-Queue: Adam Langley <agl@google.com>
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2016-11-10 22:28:02 +00:00
David Benjamin
45c844adbe aes/asm/aesp8-ppc.pl: improve [backward] portability.
Some old assemblers can't cope with r0 in address. It's actually
sensible thing to do, because r0 is shunted to 0 in address arithmetic
and by refusing r0 assembler effectively makes you understand that.

(Imported from upstream's a54aba531327285f64cf13a909bc129e9f9d5970.)

This also pulls in a trailing whitespace fix from upstream's
609b0852e4d50251857dbbac3141ba042e35a9ae.

Change-Id: Ieec0bc8d24b98f86ce4fc9ee6ce5126d127cf452
Reviewed-on: https://boringssl-review.googlesource.com/12188
Reviewed-by: Adam Langley <agl@google.com>
2016-11-10 16:20:02 +00:00
David Benjamin
126fa278f8 Don't leak memory on ASN1_GENERALIZEDTIME_adj() error path
The ASN1_GENERALIZEDTIME_adj() function leaks an ASN1_GENERALIZEDTIME
object on an error path.

(Imported from upstream's fe71bb3ad97ed01ccf92812891cc2bc3ef3dce76.)

Thanks to Jinguang Dong for pointing out the bug.

Change-Id: I2c14662bb03b0cf957bd277bda487f05f07e89e7
Reviewed-on: https://boringssl-review.googlesource.com/12185
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-10 16:17:29 +00:00
David Benjamin
7f2ee3522d bn/asm/x86_64-mont.pl: fix for CVE-2016-7055 (not affected).
(Imported from upstream's 2a7dd548a6f5d6f7f84a89c98323b70a2822406e and
9ebcbbba81eba52282df9ad8902f047e2d501f51.)

This is only in the ADX assembly codepath which we do not enable. See
$addx = 0 at the top of the file. Nonetheless, import the test vector
and fix since we still have the code in there.

Upstream's test vector only compares a*b against b*a. The expected
answer was computed using Python.

Change-Id: I3a21093978c5946d83f2d6f4f8399f69d78202cf
Reviewed-on: https://boringssl-review.googlesource.com/12186
Commit-Queue: David Benjamin <davidben@google.com>
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2016-11-10 16:01:39 +00:00
David Benjamin
ec978dd812 Add corpora for fuzzers with fuzzer mode disabled.
Fuzzer mode explores the handshake, but at the cost of losing coverage
on the record layer. Add a separate build flag and client/server
corpora for this mode.

Note this requires tweaks in consumers' fuzzer build definitions.

BUG=111

Change-Id: I1026dc7301645e165a761068a1daad6eedc9271e
Reviewed-on: https://boringssl-review.googlesource.com/12108
Commit-Queue: David Benjamin <davidben@google.com>
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2016-11-09 16:53:37 +00:00
Adam Langley
d50f1c8e3d Address review comments from https://boringssl-review.googlesource.com/#/c/11920/2
In https://boringssl-review.googlesource.com/#/c/11920/2, I addressed a
number of comments but then forgot to upload the change before
submitting it. This change contains the changes that should have been
included in that commit.

Change-Id: Ib70548e791f80abf07a734e071428de8ebedb907
Reviewed-on: https://boringssl-review.googlesource.com/12160
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2016-11-09 00:52:25 +00:00
Ladar Levison
c034e2d3ce Add ED25519_keypair_from_seed.
This function allows callers to unpack an Ed25519 “seed” value, which is
a 32 byte value that contains sufficient information to build a public
and private key from.

Change-Id: Ie5d8212a73e5710306314b4f8a93b707665870fd
Reviewed-on: https://boringssl-review.googlesource.com/12040
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2016-11-03 17:30:30 +00:00
David Benjamin
dda85e85a0 Remove the last of BIO_print_errors.
The naming breaks layering, but it seems we're stuck with it. We don't
seem to have bothered making first-party code call it BIO_print_errors
(I found no callers of BIO_print_errors), so let's just leave it at
ERR_print_errors.

Change-Id: Iddc22a6afc2c61d4b94ac555be95079e0f477171
Reviewed-on: https://boringssl-review.googlesource.com/11960
Commit-Queue: David Benjamin <davidben@google.com>
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2016-11-03 16:44:32 +00:00
David Benjamin
997c706d43 Remove no-op loops in curve25519.c.
Change-Id: I87cbc12aeb399646c6426b7a099dbf13aafc2532
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2016-11-01 23:13:17 +00:00
Adam Langley
489833160b Add d2i_X509_from_buffer.
d2i_X509_from_buffer parses an |X509| from a |CRYPTO_BUFFER| but ensures
that the |X509_CINF.enc| doesn't make a copy of the encoded
TBSCertificate. Rather the |X509| holds a reference to the given
|CRYPTO_BUFFER|.

Change-Id: I38a4e3d0ca69fc0fd0ef3e15b53181844080fcad
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2016-11-01 23:06:43 +00:00
David Benjamin
1e5ac5d502 Fix more clang-tidy warnings.
Changes imported from Chih-hung Hsieh's CL at
https://android-review.googlesource.com/c/235696/.

Change-Id: I02f170f0a059c21a8d6f221dcc779f6476f36bbf
Reviewed-on: https://boringssl-review.googlesource.com/12026
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2016-11-01 20:50:18 +00:00
David Benjamin
ea213d1f0b Add missing include.
Change-Id: I0aab9c94fcfa58b9cd46eaf716d9317f532f79a2
Reviewed-on: https://boringssl-review.googlesource.com/11850
Commit-Queue: David Benjamin <davidben@google.com>
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2016-10-28 19:56:32 +00:00
David Benjamin
d547f55971 Remove superfluous const from CRYPTO_BUFFER_len.
Tagging non-pointer return types const doesn't do anything and makes
some compilers grumpy. Thanks to Daniel Hirche for the report.

Change-Id: I157ddefd8f7e604b4d8317ffa2caddb8f0dd89de
Reviewed-on: https://boringssl-review.googlesource.com/11849
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2016-10-28 19:11:31 +00:00
Brian Smith
0d211bdc4b Clarify the scope & initialization of |data_len| in |aead_tls_open|.
Neither branch of the |if| statement is expected to touch |data_len|.
Clarify this by moving |data_len| after the |if| statement.

Change-Id: Ibbc81e5b0c006882672df18442a6e7987064ca6d
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2016-10-28 16:44:39 +00:00
Alessandro Ghedini
5e393fedef Test getrandom(2) on Linux if available
This patch changes the urandom PRNG to read one byte from the
getrandom(2) Linux syscall on initialization in order to find any
unexpected behavior.

Change-Id: I8ef676854dc361e4f77527b53d1a14fd14d449a8
Reviewed-on: https://boringssl-review.googlesource.com/8681
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2016-10-27 23:12:10 +00:00
Adam Langley
9ef99d5656 Add CRYPTO_BUFFER and CRYPTO_BUFFER_POOL.
These structures allow for blobs of data (e.g. certificates) to be
deduplicated in memory.

Change-Id: Iebfec90b85d55565848a178b6951562b4ccc083e
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2016-10-27 22:55:55 +00:00
David Benjamin
a1bbacac51 Record kCRLTestRoot's private key in the source.
At some point, we'll forget to look in the commit message.

Change-Id: I3153aab679209f4f11f56cf3f883c4c74a17af1d
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2016-10-25 23:24:21 +00:00
Nico Weber
351af19bb0 Remove a clang-cl workaround that's no longer needed.
clang-cl now supports enough of `#pragma intrinsic` that
it can use SecureZeroMemory() without an explicit intrin.h include.
This reverts https://boringssl-review.googlesource.com/#/c/8320/

BUG=chromium:592745

Change-Id: Ib766133f1713137bddd07654376a3b4888d4b0fb
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2016-10-25 21:10:52 +00:00
David Benjamin
35c8afd314 More macro hygiene improvements.
I missed these in the last round.

Change-Id: I9b47216eef87c662728e454670e9e516de71ca21
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2016-10-24 20:11:08 +00:00
David Benjamin
a7f56f0bfb Use scopers a little more.
Change-Id: I51e5a7dac3ceffc41d3a7a57157a11258e65bc42
Reviewed-on: https://boringssl-review.googlesource.com/11721
Commit-Queue: David Benjamin <davidben@google.com>
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2016-10-24 20:10:18 +00:00
David Benjamin
be941d4659 Correctly find all critical CRL extensions.
Unhandled critical CRL extensions were not detected if they appeared
after the handled ones.  (Upstream GitHub issue 1757).  Thanks to John
Chuah for reporting this.

(Imported from upstream's 3ade92e785bb3777c92332f88e23f6ce906ee260.)

This additionally adds a regression test for this issue, generated with
der-ascii.  The signatures on the CRLs were repaired per notes in
https://github.com/google/der-ascii/blob/master/samples/certificates.md

Change-Id: I74a77f92710e6ef7f46dcde5cb6ae9350084ddcb
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2016-10-24 20:09:28 +00:00
Adam Langley
afdbb62de2 Ensure that BIO_[w]pending isn't confused about negative numbers.
It's possible that a BIO implementation could return a negative number
(say -1) for BIO_CTRL_PENDING or BIO_CTRL_WPENDING. Assert that this
doesn't happen and map it to zero if it happens anyway in NDEBUG builds.

Change-Id: Ie01214e80ff19acc1c7681a1125bbbf2038679c3
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2016-10-21 21:08:55 +00:00
Adam Langley
373a6a5a7d Add a no-op |OPENSSL_no_config|.
Nodejs 6.9.0 calls this function.

Change-Id: I375f222cb819ebcb9fdce0a0d63df6817fa2dcae
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2016-10-19 19:43:35 +00:00
Adam Langley
46dd8ec993 Make the loop bounds in keywrap a little more clear.
This code reportedly upsets VC++'s static analysis. Make it clear that,
yes, we want to count backwards.

Change-Id: I5caba219a2b87750d1a9d69b46d336a98c5824c9
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2016-10-19 18:28:54 +00:00
David Benjamin
b1133e9565 Fix up macros.
Macros need a healthy dose of parentheses to avoid expression-level
misparses. Most of this comes from the clang-tidy CL here:
https://android-review.googlesource.com/c/235696/

Also switch most of the macros to use do { ... } while (0) to avoid all
the excessive comma operators and statement-level misparses.

Change-Id: I4c2ee51e347d2aa8c74a2d82de63838b03bbb0f9
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2016-10-18 18:28:23 +00:00
David Benjamin
cef36f0cf6 C++ crypto/test/malloc.cc more.
We have bool here. Also the comments were a mix of two styles.

Change-Id: I7eb6814b206efa960ae7e6e1abc14d64be6d61cf
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2016-10-14 16:01:26 +00:00
David Benjamin
52db0eb46c Revert "Get the malloc tests working under ASan."
This reverts commit 7b9bbd9639. This seems
to cause some problem linking with gold in Chromium:

../../third_party/binutils/Linux_x64/Release/bin/ld.gold: warning: Cannot export local symbol 'free'
../../third_party/binutils/Linux_x64/Release/bin/ld.gold: warning: Cannot export local symbol 'malloc'
../../third_party/binutils/Linux_x64/Release/bin/ld.gold: warning: Cannot export local symbol 'realloc'
../../third_party/binutils/Linux_x64/Release/bin/ld.gold: error: treating warnings as errors

The same error in https://crbug.com/368351 implies we're actually
causing the compiler to make some assumptions it shouldn't make. The
obvious fix of marking things as visible causes crashes when built with
ASan (ASan's malloc interceptors and ours are conflicting somehow).
Revert this for now. We should study how ASan's interceptors work and
figure out how to make these two coexist.

BUG=655938

Change-Id: Iaad245d1028c442bd924d46519b20115d37a57c4
Reviewed-on: https://boringssl-review.googlesource.com/11604
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>
2016-10-14 15:56:13 +00:00
David Benjamin
4fec04b484 Place comment(lib, *) pragmas under OPENSSL_MSVC_PRAGMA.
This clears the last of Android's build warnings from BoringSSL. These
pragmas aren't actually no-ops, but it just means that MinGW consumers
(i.e. just Android) need to explicitly list the dependency (which they
do).

There may be something to be said for removing those and having everyone
list dependencies, but I don't really want to chase down every
consumer's build files. Probably not worth the trouble.

Change-Id: I8fcff954a6d5de9471f456db15c54a1b17cb937a
Reviewed-on: https://boringssl-review.googlesource.com/11573
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>
2016-10-10 19:25:55 +00:00
David Benjamin
1db9e1bc7a Add the certificate_required alert.
This is part of TLS 1.3 draft 16 but isn't much of a wire format change,
so go ahead and add it now. When rolling into Chromium, we'll want to
add an entry to the error mapping.

Change-Id: I8fd7f461dca83b725a31ae19ef96c890d603ce53
Reviewed-on: https://boringssl-review.googlesource.com/11563
Reviewed-by: David Benjamin <davidben@google.com>
2016-10-10 15:48:06 +00:00
David Benjamin
deb2a8769d Const-correct ECDH_compute_key.
Change-Id: Id8099cc3a250e36e62b8a48e74706b75e5fa127c
Reviewed-on: https://boringssl-review.googlesource.com/11566
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 17:53:19 +00:00
Steven Valdez
803c77a681 Update crypto negotation to draft 15.
BUG=77

Change-Id: If568412655aae240b072c29d763a5b17bb5ca3f7
Reviewed-on: https://boringssl-review.googlesource.com/10840
Reviewed-by: Steven Valdez <svaldez@google.com>
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>
2016-10-06 14:37:09 +00:00
David Benjamin
97227dc52d Replace keywrap AEADs with upstream's APIs.
This finally removes the last Android hack. Both Chromium and Android
end up needing this thing (Chromium needs it for WebCrypto but currently
uses the EVP_AEAD version and Android needs it by way of
wpa_supplicant).

On the Android side, the alternative is we finish upstream's
NEED_INTERNAL_AES_WRAP patch, but then it just uses its own key-wrap
implementation. This seems a little silly, considering we have a version
of key-wrap under a different API anyway.

It also doesn't make much sense to leave the EVP_AEAD API around if we
don't want people to use it and Chromium's the only consumer. Remove it
and I'll switch Chromium to the new---er, old--- APIs next roll.

Change-Id: I23a89cda25bddb6ac1033e4cd408165f393d1e6c
Reviewed-on: https://boringssl-review.googlesource.com/11410
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-10-04 01:37:31 +00:00
David Benjamin
455919dda2 Add CBS_get_any_asn1.
We have CBS_get_asn1 / CBS_get_asn1_element, but not the "any" variants
of them. Without this, a consumer walking a DER structure must manually
CBS_skip the header, which is a little annoying.

Change-Id: I7735c37eb9e5aaad2bde8407669bce5492e1ccf6
Reviewed-on: https://boringssl-review.googlesource.com/11404
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>
2016-10-03 18:36:14 +00:00
David Benjamin
1f53747baa "Fix" some trailing whitespace.
This is just to reduce the diff with upstream's files so it's easier to
tell what's going on. Upstream's files have lots and lots of trailing
whitespace. We were also missing a comment.

Change-Id: Icfc3b52939823a046a3744fd8e619b5bd6160715
Reviewed-on: https://boringssl-review.googlesource.com/11408
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-10-03 18:30:36 +00:00
David Benjamin
54afdab584 Fix X509_CRL construction under malloc failures.
If asn1_item_ex_combine_new fails in one of the ASN1_template_new calls
just before the ASN1_OP_NEW_POST call, ASN1_item_ex_free will free the
temporary object which ultimately calls ASN1_OP_FREE_POST. This means
that ASN1_OP_FREE_POST needs to account for zero-initialized objects.

Change-Id: I56fb63bd5c015d9dfe3961606449bc6f5b1259e3
Reviewed-on: https://boringssl-review.googlesource.com/11403
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-09-30 19:13:36 +00:00
David Benjamin
0838721264 Fix bn_test under malloc tests.
Change-Id: Ia020ea08431859bf268d828b5d72715295de26e6
Reviewed-on: https://boringssl-review.googlesource.com/11401
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-09-30 19:12:42 +00:00
David Benjamin
7b9bbd9639 Get the malloc tests working under ASan.
They just need a different name for the real malloc implementations.

Change-Id: Iee1aac1133113d628fd3f9f1ed0335d66c6def24
Reviewed-on: https://boringssl-review.googlesource.com/11400
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-09-30 19:12:25 +00:00
Adam Langley
2fb2ffb660 Update aes.c for new ARM asm names.
In order to align ppc64le with the existing code, 4467e59b changed the
prefix for both the ARM and ppc64le AES assembly code to be “aes_hw_”.
However, it didn't update aes.c as well.

Change-Id: I8e3c7dea1c49ddad8a613369af274e25d572a8fd
Reviewed-on: https://boringssl-review.googlesource.com/11342
Reviewed-by: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-09-27 19:09:05 +00:00
Adam Langley
4467e59bc8 Add PPC64LE assembly for AES-GCM.
This change adds AES and GHASH assembly from upstream, with the aim of
speeding up AES-GCM.

The PPC64LE assembly matches the interface of the ARMv8 assembly so I've
changed the prefix of both sets of asm functions to be the same
("aes_hw_").

Otherwise, the new assmebly files and Perlasm match exactly those from
upstream's c536b6be1a (from their master branch).

Before:
Did 1879000 AES-128-GCM (16 bytes) seal operations in 1000428us (1878196.1 ops/sec): 30.1 MB/s
Did 61000 AES-128-GCM (1350 bytes) seal operations in 1006660us (60596.4 ops/sec): 81.8 MB/s
Did 11000 AES-128-GCM (8192 bytes) seal operations in 1072649us (10255.0 ops/sec): 84.0 MB/s
Did 1665000 AES-256-GCM (16 bytes) seal operations in 1000591us (1664016.6 ops/sec): 26.6 MB/s
Did 52000 AES-256-GCM (1350 bytes) seal operations in 1006971us (51640.0 ops/sec): 69.7 MB/s
Did 8840 AES-256-GCM (8192 bytes) seal operations in 1013294us (8724.0 ops/sec): 71.5 MB/s

After:
Did 4994000 AES-128-GCM (16 bytes) seal operations in 1000017us (4993915.1 ops/sec): 79.9 MB/s
Did 1389000 AES-128-GCM (1350 bytes) seal operations in 1000073us (1388898.6 ops/sec): 1875.0 MB/s
Did 319000 AES-128-GCM (8192 bytes) seal operations in 1000101us (318967.8 ops/sec): 2613.0 MB/s
Did 4668000 AES-256-GCM (16 bytes) seal operations in 1000149us (4667304.6 ops/sec): 74.7 MB/s
Did 1202000 AES-256-GCM (1350 bytes) seal operations in 1000646us (1201224.0 ops/sec): 1621.7 MB/s
Did 269000 AES-256-GCM (8192 bytes) seal operations in 1002804us (268247.8 ops/sec): 2197.5 MB/s

Change-Id: Id848562bd4e1aa79a4683012501dfa5e6c08cfcc
Reviewed-on: https://boringssl-review.googlesource.com/11262
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>
2016-09-27 18:43:20 +00:00
David Benjamin
daf4a05bf4 Avoid using empty initializer lists.
One of Chromium's toolchains can't handle this for some reason. See also
empty_crls and empty in TestVerify.

Change-Id: I5e6a849f3042288da2e406882ae5cfec249a86ae
Reviewed-on: https://boringssl-review.googlesource.com/11340
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>
2016-09-27 18:11:29 +00:00
Steven Valdez
f9f312af61 Add some sanity checks when checking CRL scores and tests
Note: this was accidentally omitted from OpenSSL 1.0.2 branch.
Without this fix any attempt to use CRLs will crash.

CVE-2016-7052

(Imported from upstream's 6e629b5be45face20b4ca71c4fcbfed78b864a2e)

Test CRL Root Key:

-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

Change-Id: Icc58811c78d4682591f5bb460cdd219bd41566d8
Reviewed-on: https://boringssl-review.googlesource.com/11246
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>
2016-09-26 18:06:52 +00:00
David Benjamin
16279bc559 Fix up x509_vpm.c comment.
We used upstream's reformat script, but they had stuck hyphens
everywhere to tell indent to leave a comment alone. Fix this one since
it was especially hard to read.

Change-Id: I9f43bd57dbcf66b79b775ad10ee67867d815ed33
Reviewed-on: https://boringssl-review.googlesource.com/11243
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2016-09-23 18:39:11 +00:00
David Benjamin
c8b6b4fe4a Only predict X25519 in TLS 1.3.
We'd previously been assuming we'd want to predict P-256 and X25519 but,
on reflection, that's nonsense. Although, today, P-256 is widespread and
X25519 is less so, that's not the right question to ask. Those servers
are all 1.2.

The right question is whether we believe enough servers will get to TLS
1.3 before X25519 to justify wasting 64 bytes on all other connections.
Given that OpenSSL has already shipped X25519 and Microsoft was doing
interop testing on X25519 around when we were shipping it, I think the
answer is no.

Moreover, if we are wrong, it will be easier to go from predicting one
group to two rather than the inverse (provided we send a fake one with
GREASE). I anticipate prediction-miss HelloRetryRequest logic across the
TLS/TCP ecosystem will be largely untested (no one wants to pay an RTT),
so taking a group out of the predicted set will likely be a risky
operation.

Only predicting one group also makes things a bit simpler. I haven't
done this here, but we'll be able to fold the 1.2 and 1.3 ecdh_ctx's
together, even.

Change-Id: Ie7e42d3105aca48eb9d97e2e05a16c5379aa66a3
Reviewed-on: https://boringssl-review.googlesource.com/10960
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>
2016-09-21 21:18:34 +00:00
David Benjamin
7e1f984a7c Fix some bugs in TLS 1.3 server key_share code.
Found by libFuzzer and then one more mistake caught by valgrind. Add a
test for this case.

Change-Id: I92773bc1231bafe5fc069e8568d93ac0df4c8acb
Reviewed-on: https://boringssl-review.googlesource.com/11129
Reviewed-by: David Benjamin <davidben@google.com>
2016-09-21 20:40:10 +00:00
David Benjamin
1ccfb4e32d Shush a MinGW warning in crypto/x509.
The MinGW setup on Android already defines this stat macro.

Change-Id: Ia8e89195c06ec01d4b5a2fa7357fb8d2d500aa06
Reviewed-on: https://boringssl-review.googlesource.com/11124
Reviewed-by: Kenny Root <kroot@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>
2016-09-20 22:26:27 +00:00
David Benjamin
84759bd4af Use pthreads on MinGW.
Android uses MinGW for some host tools on Windows. That toolchain
doesn't support the #pragma tricks we use for thread-local destructors,
but does appear to support pthreads.

This also lets us remove the INIT_ONCE workaround, although that's
removable anyway since Android's MinGW is now new enough.

Change-Id: I8d1573923fdaac880a50d84acbebbf87461c50d2
Reviewed-on: https://boringssl-review.googlesource.com/11125
Reviewed-by: David Benjamin <davidben@google.com>
Reviewed-by: Kenny Root <kroot@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-09-20 22:25:14 +00:00
David Benjamin
3ba2ae0417 Define __STDC_CONSTANT_MACROS in bn_test.cc.
C99 decided that, like PRI* macros, UINT64_C and friends should be
conditioned on __STDC_CONSTANT_MACROS in C++. C++11 then decided this
was ridiculous and overruled this decision. However, Android's headers
in older NDKs mistakenly followed the C99 rules for C++, so work around
this.

This fixes the android_arm bots.

Change-Id: I3b49e8dfc20190ebfa78876909bd0dccd3e210ea
Reviewed-on: https://boringssl-review.googlesource.com/11089
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-09-19 15:28:12 +00:00
David Benjamin
40a63113e4 Add BN_set_u64.
Android currently implements this manually (see NativeBN_putULongInt) by
reaching into BIGNUM's internals. BN_ULONG is a somewhat unfortunate API
anyway as the size is platform-dependent, so add a platform-independent
way to do this.

The other things Android needs are going to need more work, but this
one's easy.

BUG=97

Change-Id: I4af4dc29f9845bdce0f0663c379b4b5d3e1dc46e
Reviewed-on: https://boringssl-review.googlesource.com/11088
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
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2016-09-18 20:12:25 +00:00
David Benjamin
c446ce5294 Add EVP_AEAD_CTX_aead.
Code acting generically on an EVP_AEAD_CTX may wish to get at the
underlying EVP_AEAD.

Change-Id: I9cc905522ba76402bda4c255aa1488158323b02c
Reviewed-on: https://boringssl-review.googlesource.com/11085
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Matt Braithwaite <mab@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-09-17 01:06:40 +00:00
Matthew Braithwaite
8aaa9e12c2 Remove RC4 from TLS for real.
This withdraws support for -DBORINGSSL_ENABLE_RC4_TLS, and removes the
RC4 AEADs.

Change-Id: I1321b76bfe047d180743fa46d1b81c5d70c64e81
Reviewed-on: https://boringssl-review.googlesource.com/10940
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-09-16 03:06:36 +00:00
Adam Langley
75e44ae21d Move gcm_test to C++
Since gcm_test now contains variable decls in for loops it needs
-std=c11. However, tests are compiled with C++ test_support files in
Bazel, which doesn't work with -std=c11.

Change-Id: Ife18c2d80b01448bb3b7ee2728412289bf749bd9
Reviewed-on: https://boringssl-review.googlesource.com/11041
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-09-14 16:51:56 +00:00
Alessandro Ghedini
32d961ae48 Implement BIO_eof() for compatibility
This function (actually a macro in OpenSSL) is used by several projects
(e.g. OpenResty, OpenVPN, ...) so it can useuful to provide it for
compatibility.

However, depending on the semantics of the BIO type (e.g. BIO_pair), the
return value can be meaningless, which might explain why it was removed.

Change-Id: I0e432c92222c267eb994d32b0bc28e999c4b40a7
Reviewed-on: https://boringssl-review.googlesource.com/11020
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Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
2016-09-13 23:52:14 +00:00
David Benjamin
a97919791b Use C99 for size_t loops in gcm.c.
The stuff around i being reused for |len| rounded to a number of blocks
is a little weird.

Change-Id: I6f07a82fe84d077062e5b34ce75cc68250be8a4a
Reviewed-on: https://boringssl-review.googlesource.com/10802
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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2016-09-13 23:50:05 +00:00
David Benjamin
3b6fb5903c Use fewer macros in C ChaCha implementation.
I hear our character set includes such novel symbols as '+'.

Change-Id: I96591a563317e71299748a948d68a849e15b5d60
Reviewed-on: https://boringssl-review.googlesource.com/11009
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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Reviewed-by: Adam Langley <agl@google.com>
2016-09-13 01:56:09 +00:00
David Benjamin
54091230cd Use C99 for size_t loops.
This was done just by grepping for 'size_t i;' and 'size_t j;'. I left
everything in crypto/x509 and friends alone.

There's some instances in gcm.c that are non-trivial and pulled into a
separate CL for ease of review.

Change-Id: I6515804e3097f7e90855f1e7610868ee87117223
Reviewed-on: https://boringssl-review.googlesource.com/10801
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2016-09-12 19:44:24 +00:00
David Benjamin
c763a40101 Replace CBC_MAC_ROTATE_IN_PLACE with an N lg N rotation.
Really the only thing we should be doing with these ciphers is hastening
their demise, but it was the weekend and this seemed like fun.

EVP_tls_cbc_copy_mac needs to rotate a buffer by a secret amount. (It
extracts the MAC, but rotated.) We have two codepaths for this. If
CBC_MAC_ROTATE_IN_PLACE is defined (always on), we make some assumptions
abuot cache lines, play games with volatile, and hope that doesn't leak
anything. Otherwise, we do O(N^2) work to constant-time select the
rotation incidences.

But we can do O(N lg N). Rotate by powers of two and constant-time
select by the offset's bit positions. (Handwaivy lower-bound: an array
position has N possible values, so, armed with only a constant-time
select, we need O(lg N) work to resolve it. There's N array positions,
so O(N lg N).)

A microbenchmark of EVP_tls_cbc_copy_mac shows this is 27% faster than
the old one, but still 32% slower than the in-place version.

in-place:
Did 15724000 CopyFromMAC operations in 20000744us (786170.8 ops/sec)
N^2:
Did 8443000 CopyFromMAC operations in 20001582us (422116.6 ops/sec)
N lg N:
Did 10718000 CopyFromMAC operations in 20000763us (535879.6 ops/sec)

This results in the following the CBC ciphers. I measured
AES-128-CBC-SHA1 and AES-256-CBC-SHA384 which are, respectively, the
cipher where the other bits are the fastest and the cipher where N is
largest.

in-place:
Did 2634000 AES-128-CBC-SHA1 (16 bytes) open operations in 10000739us (263380.5 ops/sec): 4.2 MB/s
Did 1424000 AES-128-CBC-SHA1 (1350 bytes) open operations in 10002782us (142360.4 ops/sec): 192.2 MB/s
Did 531000 AES-128-CBC-SHA1 (8192 bytes) open operations in 10002460us (53086.9 ops/sec): 434.9 MB/s
N^2:
Did 2529000 AES-128-CBC-SHA1 (16 bytes) open operations in 10001474us (252862.7 ops/sec): 4.0 MB/s
Did 1392000 AES-128-CBC-SHA1 (1350 bytes) open operations in 10006659us (139107.4 ops/sec): 187.8 MB/s
Did 528000 AES-128-CBC-SHA1 (8192 bytes) open operations in 10001276us (52793.3 ops/sec): 432.5 MB/s
N lg N:
Did 2531000 AES-128-CBC-SHA1 (16 bytes) open operations in 10003057us (253022.7 ops/sec): 4.0 MB/s
Did 1390000 AES-128-CBC-SHA1 (1350 bytes) open operations in 10003287us (138954.3 ops/sec): 187.6 MB/s
Did 531000 AES-128-CBC-SHA1 (8192 bytes) open operations in 10002448us (53087.0 ops/sec): 434.9 MB/s

in-place:
Did 1249000 AES-256-CBC-SHA384 (16 bytes) open operations in 10001767us (124877.9 ops/sec): 2.0 MB/s
Did 879000 AES-256-CBC-SHA384 (1350 bytes) open operations in 10009244us (87818.8 ops/sec): 118.6 MB/s
Did 344000 AES-256-CBC-SHA384 (8192 bytes) open operations in 10025897us (34311.1 ops/sec): 281.1 MB/s
N^2:
Did 1072000 AES-256-CBC-SHA384 (16 bytes) open operations in 10008090us (107113.3 ops/sec): 1.7 MB/s
Did 780000 AES-256-CBC-SHA384 (1350 bytes) open operations in 10007787us (77939.3 ops/sec): 105.2 MB/s
Did 333000 AES-256-CBC-SHA384 (8192 bytes) open operations in 10016332us (33245.7 ops/sec): 272.3 MB/s
N lg N:
Did 1168000 AES-256-CBC-SHA384 (16 bytes) open operations in 10007671us (116710.5 ops/sec): 1.9 MB/s
Did 836000 AES-256-CBC-SHA384 (1350 bytes) open operations in 10001536us (83587.2 ops/sec): 112.8 MB/s
Did 339000 AES-256-CBC-SHA384 (8192 bytes) open operations in 10018522us (33837.3 ops/sec): 277.2 MB/s

TLS CBC performance isn't as important as it was before, and the costs
aren't that high, so avoid making assumptions about cache lines. (If we
care much about CBC open performance, we probably should get the malloc
out of EVP_tls_cbc_digest_record at the end.)

Change-Id: Ib8d8271be4b09e5635062cd3b039e1e96f0d9d3d
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2016-09-12 19:27:25 +00:00
Alessandro Ghedini
1fc7e9ccd2 Remove trailing ';' from macros
For consistency and to avoid a pedantic GCC warning (even though it's
mostly old legacy code).

Change-Id: Iea63eb0a82ff52914adc33b83e48450f4f6a49ef
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2016-09-12 19:17:26 +00:00
David Benjamin
8e726eca12 Remove unused crypto/perlasm/cbc.pl.
In OpenSSL, they're used in the 32-bit x86 Blowfish, CAST, DES, and RC5
assembly bits. We don't have any of those.

Change-Id: I36f22ca873842a200323cd3f398d2446f7bbabca
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2016-09-12 19:03:57 +00:00
Steven Valdez
ed6c5d3910 crypto/bn/*: x86[_64] division instruction doesn't handle constants, change constraint from 'g' to 'rm'.
(Imported from upstream's 2a20b6d9731488bcb500e58a434375f59fb9adcc)

Change-Id: If3db4dac3d4cd675cf7854c4e154823d25d00eb9
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2016-09-09 20:59:47 +00:00
Steven Valdez
934b57e8c9 Fix a few leaks in X509_REQ_to_X509.
(Imported from upstream's a404656a8b40d9f1172e5e330f7e2d9d87cabab8)

Change-Id: I4ddebfbaeab433bae7c1393a8258d786801bb633
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2016-09-09 20:17:16 +00:00
David Benjamin
f0e935d7ce Fold stack-allocated types into headers.
Now that we have the extern "C++" trick, we can just embed them in the
normal headers. Move the EVP_CIPHER_CTX deleter to cipher.h and, in
doing so, take away a little bit of boilerplate in defining deleters.

Change-Id: I4a4b8d0db5274a3607914d94e76a38996bd611ec
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2016-09-07 21:50:05 +00:00
Matt Braithwaite
d17d74d73f Replace Scoped* heap types with bssl::UniquePtr.
Unlike the Scoped* types, bssl::UniquePtr is available to C++ users, and
offered for a large variety of types.  The 'extern "C++"' trick is used
to make the C++ bits digestible to C callers that wrap header files in
'extern "C"'.

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2016-09-01 22:22:54 +00:00
David Benjamin
449c381971 Import NIST ECDSA verification tests.
Change-Id: Idaec86866c600b87cda662b1b31c864cb1d141ac
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2016-08-30 16:02:11 +00:00
David Benjamin
a6e86bc3dc Import NIST ECDSA signing tests.
These test vectors include the k value, so we can get a deterministic
test.

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2016-08-30 15:43:53 +00:00
David Benjamin
163c95691a Forbid EMS from changing during renegotation.
Changing parameters on renegotiation makes all our APIs confusing. This
one has no reason to change, so lock it down. In particular, our
preference to forbid Token Binding + renego may be overridden at the
IETF, even though it's insane. Loosening it will be a bit less of a
headache if EMS can't change.

https://www.ietf.org/mail-archive/web/unbearable/current/msg00690.html
claims that this is already in the specification and enforced by NSS. I
can't find anything to this effect in the specification. It just says
the client MUST disable renegotiation when EMS is missing, which is
wishful thinking. At a glance, NSS doesn't seem to check, though I could
be misunderstanding the code.

Nonetheless, locking this down is a good idea anyway. Accurate or not,
take the email as an implicit endorsement of this from Mozilla.

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2016-08-30 15:43:35 +00:00
David Benjamin
147f1c468c Simplify RC4 code and remove assembly.
This removes all but the generic C RC4 implementation. At this point we
want to optimize for size/simplicity rather than speed.

See also upstream's 3e9e810f2e047effb1056211794d2d12ec2b04e7 which
removed the RC4_CHUNK code and standardized on RC4_INDEX. A
since-removed comment says that it was implemented for "pre-21164a Alpha
CPUs don't have byte load/store instructions" and helps with SPARC and
MIPS.

This also removes all the manual loop unrolling.

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2016-08-30 15:32:31 +00:00
David Benjamin
8c2d53ad99 Import NIST ECDH test vectors.
This and the following commits will import NIST's ECC test vectors.
Right now all our tests pass if I make P-224 act like P-521, which is
kind of embarrassing. (Other curves are actually tested, but only
because runner.go tests them against BoGo.)

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2016-08-30 15:32:22 +00:00
David Benjamin
9b7d836b05 Be -Wnewline-eof clean.
Change-Id: I85216184f9277ce0c0caae31e379b638683e28c5
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2016-08-29 19:15:19 +00:00
David Benjamin
1db42fb3ca Clarify CBS/CBB with respect to high tag number form.
We may need to implement high tag number form someday. CBS_get_asn1 has
an unsigned output to allow for this, but CBB_add_asn1 takes a uint8_t
(I think this might be my fault). Fix that which also fixes a
-Wconversion warning.

Simply leaving room in tag representation will still cause troubles
because the class and constructed bits overlap with bits for tag numbers
above 31. Probably the cleanest option would be to shift them to the top
3 bits of a u32 and thus not quite match the DER representation. Then
CBS_get_asn1 and CBB_add_asn1 will internally munge that into the DER
representation and consumers may continue to write things like:

   tag_number | CBS_ASN1_CONTEXT_SPECIFIC

I haven't done that here, but in preparation for that, document that
consumers need to use the values and should refrain from assuming the
correspond to DER.

Change-Id: Ibc76e51f0bc3b843e48e89adddfe2eaba4843d12
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2016-08-26 17:48:48 +00:00
Adam Langley
008f081c63 Allow .arch directives with Clang.
Some, very recent, versions of Clang now support `.arch`. Allow them to
see these directives with BORINGSSL_CLANG_SUPPORTS_DOT_ARCH.

BUG=39

Change-Id: I122ab4b3d5f14502ffe0c6e006950dc64abf0201
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2016-08-26 17:45:49 +00:00
David Benjamin
c72e6f9c69 Fix off by 1 in ASN1_STRING_set()
(Imported from upstream's 061d6c25ba7cb0524756a872e92da1de2d494d68.)

Change-Id: I817c5919a48316401a028f6dbc16461e8599fe1d
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2016-08-24 04:40:39 +00:00
David Benjamin
311c2579f7 Declare SSL_R_BLOCK_CIPHER_PAD_IS_WRONG and SSL_R_NO_CIPHERS_SPECIFIED.
nginx consumes these error codes without #ifdefs. Continue to define
them for compatibility, even though we never emit them.

BUG=95

Change-Id: I1e991987ce25fc4952cc85b98ffa050a8beab92e
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2016-08-24 01:15:19 +00:00
David Benjamin
7c04075617 Rewrite BN_bn2dec.
958aaf1ea1, imported from upstream, had an
off-by-one error. Reproducing the failure is fairly easy as it can't
even serialize 1. See also upstream's
099e2968ed3c7d256cda048995626664082b1b30.

Rewrite the function completely with CBB and add a basic test.

BUG=chromium:639740

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2016-08-23 19:57:26 +00:00
Steven Valdez
cb96654404 Adding ARRAY_SIZE macro for getting the size of constant arrays.
Change-Id: Ie60744761f5aa434a71a998f5ca98a8f8b1c25d5
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2016-08-19 19:30:39 +00:00
Steven Valdez
32635b828f Add limit for consecutive KeyUpdate messages.
Change-Id: I2e1ee319bb9852b9c686f2f297c470db54f72279
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2016-08-18 23:43:12 +00:00
Brian Smith
9b01c6148e Clarify origin of optimized computation of Montgomery n0.
I found an earlier reference for an algorithm for the optimized
computation of n0 that is very similar to the one in the "Montgomery
Multiplication" paper cited in the comments. Add a reference to it.

Henry S. Warren, Jr. pointed out that his "Montgomery Multiplication"
paper is not a chapter of his book, but a supplement to the book.
Correct the reference to it.

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2016-08-18 18:22:41 +00:00
David Benjamin
d224d52aba Add constants for BN_rand and use them.
See upstream's f67cbb74437842a0f88f84f43a0faa968ca77b35 and
2301d91dd58d9827865e360d616291f2549ec5bf.

Change-Id: I3b79323847a7610143a9dfb9b5b45bf7a33d8690
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2016-08-18 18:18:31 +00:00
David Benjamin
8fcc755cf5 Don't add ERR_R_INTERNAL_ERROR to BN_R_NO_INVERSE.
This was causing some Android breakage. The real bug is actually
entirely in Android for getting its error-handling code wrong and not
handling multiple errors. I'll fix that. (See b/30917411.)

That said, BN_R_NO_INVERSE is a perfectly legitimate reason for those
operations to fail, so ERR_R_INTERNAL_ERROR isn't really a right thing
to push in front anyway. We're usually happy enough with single-error
returns (I'm still a little skeptical of this queue idea), so let's just
leave it at that.

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2016-08-18 18:14:21 +00:00
David Benjamin
958aaf1ea1 Check for errors in BN_bn2dec()
If an oversize BIGNUM is presented to BN_bn2dec() it can cause
BN_div_word() to fail and not reduce the value of 't' resulting
in OOB writes to the bn_data buffer and eventually crashing.

Fix by checking return value of BN_div_word() and checking writes
don't overflow buffer.

Thanks to Shi Lei for reporting this bug.

CVE-2016-2182

(Imported from upstream's e36f27ddb80a48e579783bc29fb3758988342b71.)

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2016-08-16 19:46:35 +00:00
David Benjamin
722ba2db77 sha/asm/sha1-x86_64.pl: fix crash in SHAEXT code on Windows.
RT#4530

(Imported from upstream's 7123aa81e9fb19afb11fdf3850662c5f7ff1f19c.)

We've yet to enable this code, but this confirms that we do indeed need
to get our future all-variants stuff working on Windows as well as
Linux and find an AVX2-capable CI setup on each.

The crash here is caused by some win64-only code using %rax as a frame
pointer (perlasm injects a mov rax,rsp in the prologue of every win64
function).

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2016-08-16 19:46:06 +00:00
David Benjamin
2a795a1775 Check for errors in a2d_ASN1_OBJECT()
Check for error return in BN_div_word().

(Imported from upstream's d871284aca5524c85a6460119ac1b1e38f7e19c6.)

This function is only called from crypto/obj to convert strings like
"1.2.3.4.5" to OIDs. We may wish to see about rewriting it just so it's
out of the way.

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2016-08-16 19:45:32 +00:00
David Benjamin
55d9038de5 Delete d2i_ASN1_bytes and i2d_ASN1_bytes.
These functions are unused. Upstream recently needed to limit recursion
depth on this function in 81f69e5b69b8e87ca5d7080ab643ebda7808542c.  It
looks like deeply nested BER constructed strings could cause unbounded
stack usage. Delete the function rather than import the fix.

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2016-08-16 19:45:13 +00:00
David Benjamin
da53b59e75 Purge some a2i functions.
These are never used internally or externally. Upstream had some
bugfixes to them recently. Delete them instead.

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2016-08-16 19:38:31 +00:00
David Benjamin
6a98349314 Check for overflows in ASN1_object_size().
(Imported from upstream's b10c10422a9ec4db426be3ef99031f0807d2ded0,
ff8b6b92f44c682ad78f60c32ec154e0bfabebb2, and
134ab5139a8d41455a81d9fcc31b3edb8a4b2f5c.)

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2016-08-16 19:37:04 +00:00
David Benjamin
1b93a42b37 Don't use function wrappers for EC_METHOD.
The weird function thing is a remnant of OpenSSL and I think something
weird involving Windows and symbols exported from dlls. These aren't
exposed in the public API, so have everything point to the tables
directly.

This is in preparation for making built-in EC_GROUPs static. (The static
EC_GROUPs won't be able to call a function wrapper.)

BUG=20

Change-Id: If33888430f32e51f48936db4046769aa1894e3aa
Reviewed-on: https://boringssl-review.googlesource.com/10346
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2016-08-16 19:27:52 +00:00
David Benjamin
86aa5dab14 Tidy up EC_POINT_dup.
The old one was written somewhat weirdly.

Change-Id: I414185971a7d70105fded558da6d165570429d31
Reviewed-on: https://boringssl-review.googlesource.com/10345
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2016-08-16 18:57:49 +00:00
David Benjamin
161ef92c39 Inline ec_group_copy and simplify.
A lot of codepaths are unreachable since the EC_GROUP is known to be
blank.

Change-Id: I5829934762e503241aa73f833c982ad9680d8856
Reviewed-on: https://boringssl-review.googlesource.com/10344
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2016-08-16 18:52:42 +00:00
Adam Langley
7d7afc3b89 Drop STRICT_ALIGNMENT code in ofb.c.
By using memcpy, GCC can already optimise things so that the compiled
code is identical on x86-64. Thus we don't need to worry about having
different versions for platforms with, and without, strict alignment.

(Thanks to Emil Mikulic.)

Change-Id: I08bc5fa9b67aa369be2dd2e29e4229fb5b5ff40c
Reviewed-on: https://boringssl-review.googlesource.com/10381
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2016-08-16 18:37:01 +00:00
Adam Langley
aa24851515 Don't crash when generating a key for a zero DH prime.
I didn't look into whether this was reachable, but I assume not. Still,
better to be robust here becasue DH groups are commonly under some
amount of attacker control.

Change-Id: I1e0c33ccf314c73a9d34dd48312f6f7580049ba7
Reviewed-on: https://boringssl-review.googlesource.com/10261
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2016-08-11 16:52:56 +00:00
David Benjamin
96a16cd10e Finish aligning up_ref functions with OpenSSL 1.1.0.
All external callers should be resolved now.

BUG=89

Change-Id: I6055450e8202c59cca49e4a824be3ec11c32a15a
Reviewed-on: https://boringssl-review.googlesource.com/10285
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2016-08-11 16:51:52 +00:00
David Benjamin
3e51757de2 Enforce the server ALPN protocol was advertised.
The server should not be allowed select a protocol that wasn't
advertised. Callers tend to not really notice and act as if some default
were chosen which is unlikely to work very well.

Change-Id: Ib6388db72f05386f854d275bab762ca79e8174e6
Reviewed-on: https://boringssl-review.googlesource.com/10284
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2016-08-11 16:46:34 +00:00
Adam Langley
37b486aade Remove optimisation for known DH groups.
Since we are eliminating DHE support in TLS, this is just a waste of
bytes.

Change-Id: I3a23ece564e43f7e8874d1ec797def132ba59504
Reviewed-on: https://boringssl-review.googlesource.com/10260
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2016-08-11 16:41:50 +00:00
Martin Kreichgauer
19d5cf86de Move remaining ScopedContext types out of scoped_types.h
Change-Id: I7d1fa964f0d9817db885cd43057a23ec46f21702
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2016-08-11 01:15:45 +00:00
Brian Smith
e4a432687e Reset |out_no_inverse| before returning errors in BN_mod_inverse_odd.
This more accurately reflects the documented contract for
|BN_mod_inverse_odd|.

Change-Id: Iae98dabe3943231859eaa5e798d06ebe0231b9f1
Reviewed-on: https://boringssl-review.googlesource.com/9160
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2016-08-10 22:59:54 +00:00
David Benjamin
96e1a25943 Add BN_get_rfc3526_prime_1536.
In OpenSSL 1.1.0, this API has been renamed to gain a BN prefix. Now
that it's no longer squatting on a namespace, provide the function so
wpa_supplicant needn't carry a BoringSSL #ifdef here.

BUG=91

Change-Id: Iac8e90238c816caae6acf0e359893c14a7a970f1
Reviewed-on: https://boringssl-review.googlesource.com/10223
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2016-08-10 19:28:15 +00:00