Commit Graph

1354 Commits

Author SHA1 Message Date
Steven Valdez
2b8415e8ff Move the Digest/Sign split for SignatureAlgorithms to a lower level.
In order to delay the digest of the handshake transcript and unify
around message-based signing callbacks, a copy of the transcript is kept
around until we are sure there is no certificate authentication.

This removes support for SSL_PRIVATE_KEY_METHOD as a client in SSL 3.0.

Change-Id: If8999a19ca021b4ff439319ab91e2cd2103caa64
Reviewed-on: https://boringssl-review.googlesource.com/8561
Reviewed-by: David Benjamin <davidben@google.com>
2016-07-01 19:01:33 +00:00
David Benjamin
784f6f91e5 Remove a bunch of unnecessary includes.
This file contains nothing but no-op functions. There's nothing to include.

Change-Id: I3a21207d6a47fab3a00c3f72011abef850ed7b27
Reviewed-on: https://boringssl-review.googlesource.com/8541
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-28 20:31:14 +00:00
David Benjamin
32a3780bab Move more non-bc tests down.
Change-Id: Ib661e2f3b87543a4b7a091631e9e2a66709a70e8
Reviewed-on: https://boringssl-review.googlesource.com/8530
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 23:27:06 +00:00
David Benjamin
dcc5531af7 Move the remaining bad modulus tests out of bc test functions.
BUG=31

Change-Id: I11d8dd1499c4e0176ade9698d4b23fdfb20c4eb6
Reviewed-on: https://boringssl-review.googlesource.com/8529
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 23:26:13 +00:00
David Benjamin
96f9447e3e Fix naming of non-bc bn_tests.
The bc ones will all get replaced later.

Change-Id: Ic1c6ee320b3a5689c7dadea3f483bd92f7e39612
Reviewed-on: https://boringssl-review.googlesource.com/8528
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 23:06:20 +00:00
David Benjamin
8b66feffa2 Convert test_div, test_mod, and test_div_word to file_test.
These can all share one test type. Note test_div had a separate
division by zero test which had to be extracted.

BUG=31

Change-Id: I1de0220fba78cd7f82a5dc96adb34b79c07929e9
Reviewed-on: https://boringssl-review.googlesource.com/8527
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 23:05:53 +00:00
Adam Langley
d42e4b2b8f initialise |n| parameter in bn_test.cc to avoid compiler warning.
crypto/bn/bn_test.cc:404:44: error: ‘n’ may be used uninitialized in this
function [-Werror=maybe-uninitialized]

Change-Id: Id590dfee4b9ae1a4fbd0965e133310dac0d06ed3
2016-06-27 15:57:57 -07:00
David Benjamin
cca1c11ae8 Convert test_mul to file_test.
BUG=31

Change-Id: I0af5f30cf62c86d1d41152e1e99840bf83c29b33
Reviewed-on: https://boringssl-review.googlesource.com/8526
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 22:32:29 +00:00
David Benjamin
e1caf3974d Convert test_sqr to file_test.
Two of these were even regression tests for a past bug. These are also
moved to the file, now with the amazing innovation that we *actually
check the regression test gave the right answer*.

BUG=31

Change-Id: I8097336ad39a2bb5c0af07dd8e1e34723b68d182
Reviewed-on: https://boringssl-review.googlesource.com/8525
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 22:31:06 +00:00
David Benjamin
5e9bdc1a77 Convert test_lshift and test_rshift into file_tests.
BUG=31

Change-Id: Ic9acc851d9ad48a7b74f75d5854b7186730f9d3e
Reviewed-on: https://boringssl-review.googlesource.com/8524
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 22:30:25 +00:00
David Benjamin
04000e1e31 Add carry tests to bn_tests.txt.
This adds tests for:

  for i = 0 to 199:
    Sum: 2^i
    A: 2^i - 1
    B: 1

  for i = 0 to 199:
    Sum: 2^200
    A: 2^200 - 2^i
    B: 2^i

I don't believe any of the existing tests actually stressed this,
amazingly enough.

Change-Id: I5edab6327bad45fc21c62bd47f4169f8bb745ff7
Reviewed-on: https://boringssl-review.googlesource.com/8523
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 22:29:12 +00:00
David Benjamin
3058103d70 Convert test_lshift1 and test_rshift1 to FileTest.
This took some finesse. I merged the lshift1 and rshift1 test vectors as
one counted down and the other up. The rshift1 vectors were all rounded
to even numbers, with the test handling the odd case. Finally, each run
only tested positive or negative (it wasn't re-randomized), so I added
both positive and negative versions of each test vector.

BUG=31

Change-Id: Ic7de45ab797074547c44c2e4ff8089b1feec5d57
Reviewed-on: https://boringssl-review.googlesource.com/8522
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 22:28:52 +00:00
David Benjamin
dca125efb5 Remove compatibility 'inline' define.
MSVC 2015 seems to support it just fine.

Change-Id: I9c91c18c260031e6024480d1f57bbb334ed7118c
Reviewed-on: https://boringssl-review.googlesource.com/8501
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 22:16:03 +00:00
David Benjamin
80137ba1d3 Convert test_add and test_sub to file_test.
Test vectors taken from one run of bc_test with the -bc flag, along with
a handful of manual test vectors around numbers close to zero. (The
output was compared against bc to make sure it was correct.)

BUG=31

Change-Id: I9e9263ece64a877c8497716cd4713b4c3e44248c
Reviewed-on: https://boringssl-review.googlesource.com/8521
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 22:06:38 +00:00
David Benjamin
d1fa9f970e Sync x86 perlasm drivers with upstream master.
Upstream added new instructions in
f4d456408d9d7bca31f34765d1a05fbd9fa55826 and
4e3d2866b6e8e7a700ea22e05840a093bfd7a4b1.

Change-Id: I835650426a0dffca2d8686d64aef99097a4bd186
Reviewed-on: https://boringssl-review.googlesource.com/8520
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 22:00:51 +00:00
David Benjamin
66194feedd perlasm/x86_64-xlate.pl: address errors and warnings in elderly perls.
(Imported from upstream's 67b8bf4d849a7c40d0226de4ebe2590c4cc7c1f7.)

Verified a no-op in generate_build_files.py.

Change-Id: I09648893ab5c795f3934da0b2ecbc5fd7eb068d5
Reviewed-on: https://boringssl-review.googlesource.com/8519
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 22:00:26 +00:00
David Benjamin
fdd8e9c8c7 Switch perlasm calling convention.
Depending on architecture, perlasm differed on which one or both of:

  perl foo.pl flavor output.S
  perl foo.pl flavor > output.S

Upstream has now unified on the first form after making a number of
changes to their files (the second does not even work for their x86
files anymore). Sync those portions of our perlasm scripts with upstream
and update CMakeLists.txt and generate_build_files.py per the new
convention.

This imports various commits like this one:
184bc45f683c76531d7e065b6553ca9086564576 (this was done by taking a
diff, so I don't have the full list)

Confirmed that generate_build_files.py sees no change.

BUG=14

Change-Id: Id2fb5b8bc2a7369d077221b5df9a6947d41f50d2
Reviewed-on: https://boringssl-review.googlesource.com/8518
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 21:59:26 +00:00
David Benjamin
ac81d92968 Revert local change to x86masm.pl.
We're not using the masm output (and upstream does not even support it).
Reduce unnecessary diff from upstream.

Change-Id: Ic0b0f804bd7ec1429b3b1f40746297b57dcfcef6
Reviewed-on: https://boringssl-review.googlesource.com/8517
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 21:49:07 +00:00
David Benjamin
bb076e334c Add CBB_add_u32.
It was missing. Writing NewSessionTicket will need it.

Change-Id: I39de237894f2e8356bd6861da2b8a4d805dcd2d6
Reviewed-on: https://boringssl-review.googlesource.com/8439
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 20:12:54 +00:00
David Benjamin
c9ae27ca72 Build up TLS 1.3 record-layer tests.
This also adds a missing check to the C half to ensure fake record types are
always correct, to keep implementations honest.

Change-Id: I1d65272e647ffa67018c721d52c639f8ba47d647
Reviewed-on: https://boringssl-review.googlesource.com/8510
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-27 17:02:01 +00:00
David Benjamin
44bedc348d Handle BN_mod_word failures.
As of 67cb49d045 and the corresponding upstream
change, BN_mod_word may fail, like BN_div_word. Handle this properly and
document in bn.h. Thanks to Brian Smith for pointing this out.

Change-Id: I6d4f32dc37bcabf70847c9a8b417d55d31b3a380
Reviewed-on: https://boringssl-review.googlesource.com/8491
Reviewed-by: Adam Langley <agl@google.com>
2016-06-23 21:25:18 +00:00
David Benjamin
53409ee3d7 Fix BN_is_prime* calls.
This function returns a tri-state -1 on error. We should check this.

Change-Id: I6fe130c11d10690923aac5ac7a6dfe3e3ff3f5e9
Reviewed-on: https://boringssl-review.googlesource.com/8490
Reviewed-by: Adam Langley <agl@google.com>
2016-06-23 21:22:33 +00:00
David Benjamin
ff594ca8c8 Make arm-xlate.pl set use strict.
It was already nearly clean. Just one undeclared variable.

(Imported from upstream's abeae4d3251181f1cedd15e4433e79406b766155.)

Change-Id: I3b8f20034f914fc44faabf165d1553d4084c87cc
Reviewed-on: https://boringssl-review.googlesource.com/8393
Reviewed-by: Adam Langley <agl@google.com>
2016-06-22 23:11:27 +00:00
David Benjamin
b111f7a0e4 Rebase x86_64-xlate.pl atop master.
This functionally pulls in a number of changes from upstream, including:
4e3d2866b6e8e7a700ea22e05840a093bfd7a4b1
1eb12c437bbeb2c748291bcd23733d4a59d5d1ca
6a4ea0022c475bbc2c7ad98a6f05f6e2e850575b
c25278db8e4c21772a0cd81f7873e767cbc6d219
e0a651945cb5a70a2abd9902c0fd3e9759d35867
d405aa2ff265965c71ce7331cf0e49d634a06924
ce3d25d3e5a7e82fd59fd30dff7acc39baed8b5e
9ba96fbb2523cb12747c559c704c58bd8f9e7982

Notably, c25278db8e4c21772a0cd81f7873e767cbc6d219 makes it enable 'use strict'.

To avoid having to deal with complex conflicts, this was done by taking a diff
of our copy of the file with the point just before
c25278db8e4c21772a0cd81f7873e767cbc6d219, and reapplying the non-reverting
parts of our diff on top of upstream's current version.

Confirmed with generate_build_files.py that this makes no changes *except*
d405aa2ff265965c71ce7331cf0e49d634a06924 causes this sort of change throughout
chacha-x86_64.pl's nasm output:

@@ -1179,7 +1179,7 @@ $L$oop8x:
        vpslld  ymm14,ymm0,12
        vpsrld  ymm0,ymm0,20
        vpor    ymm0,ymm14,ymm0
-       vbroadcasti128  ymm14,YMMWORD[r11]
+       vbroadcasti128  ymm14,XMMWORD[r11]
        vpaddd  ymm13,ymm13,ymm5
        vpxor   ymm1,ymm13,ymm1
        vpslld  ymm15,ymm1,12

This appears to be correct. vbroadcasti128 takes a 128-bit-wide second
argument, so it wants XMMWORD, not YMMWORD. I suppose nasm just didn't care.

(Looking at a diff-diff may be a more useful way to review this CL.)

Change-Id: I61be0d225ddf13b5f05d1369ddda84b2f322ef9d
Reviewed-on: https://boringssl-review.googlesource.com/8392
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
2016-06-22 19:54:14 +00:00
Adam Langley
fd4d67cb5b Always generate X25519 private keys that need to be masked.
In order to ensure that we don't randomly interoperate with
implementations that don't mask scalars correctly, always generate
scalars with the wrong fixed bits.

Change-Id: I82536a856f034cfe4464fc545a99c21b3cff1691
Reviewed-on: https://boringssl-review.googlesource.com/8391
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-20 18:57:55 +00:00
David Benjamin
4186b711f4 Don't bother storing the cofactor.
It's always one. We don't support other kinds of curves with this framework.
(Curve25519 uses a much simpler API.) This also allows us to remove the
check_pub_key_order logic.

Change-Id: Ic15e1ecd68662b838c76b1e0aa15c3a93200d744
Reviewed-on: https://boringssl-review.googlesource.com/8350
Reviewed-by: Adam Langley <agl@google.com>
2016-06-20 17:26:02 +00:00
David Benjamin
aaa39e97f4 Don't rely on BN_FLG_CONSTTIME in the DSA code.
DSA is deprecated, but get this aligned with some of the BN_FLG_CONSTTIME work
going on elsewhere.

Change-Id: I676ceab298a69362bef1b61d6f597c5c90da2ff0
Reviewed-on: https://boringssl-review.googlesource.com/8309
Reviewed-by: Adam Langley <agl@google.com>
2016-06-20 17:17:41 +00:00
David Benjamin
99c752ad52 Compute kinv in DSA with Fermat's Little Theorem.
It's a prime, so computing a constant-time mod inverse is straight-forward.

Change-Id: Ie09b84363c3d5da827989300a844c470437fd8f2
Reviewed-on: https://boringssl-review.googlesource.com/8308
Reviewed-by: Adam Langley <agl@google.com>
2016-06-20 17:16:18 +00:00
David Benjamin
8cf79af7d1 Always use Fermat's Little Theorem in ecdsa_sign_setup.
The case where ec_group_get_mont_data is NULL is only for arbitrary groups
which we now require to be prime order. BN_mod_exp_mont is fine with a NULL
BN_MONT_CTX. It will just compute it. Saves a bit of special-casing.

Also don't mark p-2 as BN_FLG_CONSTTIME as the exponent is public anyway.

Change-Id: Ie868576d52fc9ae5f5c9f2a4039a729151bf84c7
Reviewed-on: https://boringssl-review.googlesource.com/8307
Reviewed-by: Adam Langley <agl@google.com>
2016-06-20 17:11:42 +00:00
David Benjamin
2f02854c24 Remove EC_GROUP_new_arbitrary.
The Conscrypt revert cycled in long ago.

Change-Id: If3cdb211d7347dca88bd70bdc643f80b19a7e528
Reviewed-on: https://boringssl-review.googlesource.com/8306
Reviewed-by: Adam Langley <agl@google.com>
2016-06-16 20:25:39 +00:00
Brian Smith
c5e372e6ef Return earlier if inverse is not found in |BN_mod_inverse_ex|.
Make |BN_mod_inverse_ex| symmetric with |BN_mod_inverse_no_branch| in
this respect.

Change-Id: I4a5cbe685edf50e13ee1014391bc4001f5371fec
Reviewed-on: https://boringssl-review.googlesource.com/8316
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-16 18:32:35 +00:00
Adam Langley
3cab5572b1 Don't align NEWPOLY_POLY.
The alignas in NEWPOLY_POLY told the compiler that it could assume a
certain alignment. However, values were allocated with malloc with no
specific alignment.

We could try and allocate aligned memory but the alignment doesn't have
a performance impact (on x86-64) so this is the simpler change. (Also,
Windows doesn't have |posix_memalign|. The cloest thing is
_alligned_alloc but then one has to use a special free function.)

Change-Id: I53955a88862160c02aa5436d991b1b797c3c17db
Reviewed-on: https://boringssl-review.googlesource.com/8315
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-16 17:48:08 +00:00
Brian Smith
13603a8399 Move "no inverse" test earlier in |BN_mod_inverse_no_branch|.
There's no use doing the remaining work if we're going to fail due to
there being no inverse.

Change-Id: Ic6d7c92cbbc2f7c40c51e6be2de3802980d32543
Reviewed-on: https://boringssl-review.googlesource.com/8310
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-16 17:05:55 +00:00
Matt Braithwaite
3675dddab9 newhope_test: corrupt things harder.
This ensures that the test is not flaky after lots of iterations.

Along the way, change newhope_test.cc to C++.

Change-Id: I4ef139444b8c8a98db53d075105eb6806f6c5fc7
Reviewed-on: https://boringssl-review.googlesource.com/8110
Reviewed-by: Adam Langley <agl@google.com>
2016-06-16 16:41:19 +00:00
David Benjamin
da7f0c65ef Unwind X509_LU_RETRY and fix a lot of type confusion.
(This change will be sent upstream. Since the legacy X.509 stack is just
kept around for compatibility, if they decide to fix it in a different
way, we may wish to revert this and apply their fix.)

Dating back to SSLeay, X509_LOOKUP_METHOD had this X509_LU_RETRY
machinery. But it's not documented and it appears to have never worked.

Problems with the existing logic:

- X509_LU_* is not sure whether it is a type enum (to be passed into
  X509_LOOKUP_by_*) or a return enum (to be retained by those same
  functions).

- X509_LOOKUP_by_* is not sure whether it returns 0/1 or an X509_LU_*
  value.  Looking at the functions themselves, one might think it's the
  latter, but for X509_LOOKUP_by_subject returning both 0 and
  X509_LU_FAIL. But looking at the call sites, some expect 0/1 (such as
  X509_STORE_get1_certs) while others expect an X509_LU_* enum (such as
  X509_STORE_CTX_get1_issuer). It is very fortunate that FAIL happens to
  be 0 and X509 happens to be 1.

  These functions primarily call to X509_LOOKUP_METHOD hooks. Looking
  through OpenSSL itself and code checked into Google, I found no
  evidence that any hooks have been implemented except for
  get_by_subject in by_dir.c. We take that one as definitive and observe
  it believes it returns 0/1. Notably, it returns 1 on success even if
  asked for a type other than X509_LU_X509. (X509_LU_X509 = 1. Others are
  different.) I found another piece of third-party software which corroborates
  this worldview.

- X509_STORE_get_by_subject's handling of X509_LU_RETRY (it's the j < 0
  check) is broken. It saves j into vs->current_method where it probably
  meant to save i. (This bug has existed since SSLeay.)

  It also returns j (supposedly X509_LU_RETRY) while all callers of
  X509_STORE_get_by_subject expect it to return 0/1 by checking with !
  instead of <= 0. (Note that all other codepaths return 0 and 1 so this
  function did not actually believe it returned X509_LU_* most of the
  time.)

  This, in turn, gives us a free of uninitialized pointers in
  X509_STORE_get1_certs and other functions which expect that *ret is
  filled in if X509_STORE_get_by_subject returns success. GCC 4.9 with
  optimizations from the Android NDK noticed this, which trigged this
  saga.

  (It's only reachable if any X509_LOOKUP_METHOD returned
  X509_LU_RETRY.)

- Although the code which expects X509_STORE_get_by_subject return 0/1
  does not date to SSLeay, the X509_STORE_get_by_subject call in
  X509_STORE_CTX_get1_issuer *does* (though, at the time, it was inline
  in X509_verify_cert. That code believes X509_STORE_get_by_subject
  returns an X509_LU_* enum, but it doesn't work either! It believes
  *ret is filled in on X509_LU_RETRY, thus freeing another uninitialized
  pointer (GCC noticed this too).

Since this "retry" code has clearly never worked, from SSLeay onwards,
unwind it completely rather than attempt to fix it. No
X509_LOOKUP_METHOD can possibly have depended on it.

Matching all non-broken codepaths X509_LOOKUP_by_* now returns 0/1 and
X509_STORE_get_by_subject returns 0/1. X509_LU_* is purely a type enum
with X509_LU_{REJECT,FAIL} being legacy constants to keep old code
compiling. (Upstream is recommended to remove those values altogether
for 1.1.0.)

On the off chance any get_by_* X509_LOOKUP_METHOD implementations did
not return 0/1 (I have found no evidence anywhere of this, and I believe
it wouldn't have worked anyway), the X509_LOOKUP_by_* wrapper functions
will coerce the return values back to 0/1 before passing up to the
callers which want 0/1. This both avoids the error-prone -1/0/1 calling
convention and, more importantly, avoids problems with third-party
callers which expect a X509_LU_* return code. 0/1 collide with FAIL/X509
while -1 will collide with RETRY and might confuse things.

Change-Id: I98ecf6fa7342866b9124dc6f0b422cb9ce4a1ae7
Reviewed-on: https://boringssl-review.googlesource.com/8303
Reviewed-by: Adam Langley <agl@google.com>
2016-06-16 16:24:44 +00:00
David Benjamin
054e597670 Include intrin.h under cover of warning pragmas.
intrin.h on MSVC seems to have the same problem as other MSVC headers.
https://build.chromium.org/p/client.boringssl/builders/win64_small/builds/455/steps/ninja/logs/stdio

Change-Id: I98e959132c2f6188727d6c432f9c85aa0a78e91e
Reviewed-on: https://boringssl-review.googlesource.com/8305
Reviewed-by: Adam Langley <agl@google.com>
2016-06-16 16:12:32 +00:00
Nico Weber
2b360714ab win: Add an explicit intrin.h include to work around a clang-cl bug.
I did the same change in NaCl in
https://codereview.chromium.org/2070533002/.  I thought NaCl is the only
place where this was needed, but at least it's due to SecureZeroMemory()
again.  So it's two files now, but at least there's only one function we
know of that needs this, and it's only called in three files total in
all projects used by Chromium.

BUG=chromium:592745

Change-Id: I07ed197869e26ec70c1f4b75d91fd64abae5015e
Reviewed-on: https://boringssl-review.googlesource.com/8320
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-16 16:03:46 +00:00
David Benjamin
65dac9c8a3 Fix the name of OPENSSL_add_all_algorithms_conf.
I named the compatibility function wrong.

Change-Id: Idc289c317c5826c338c1daf58a2d3b26b09a7e49
Reviewed-on: https://boringssl-review.googlesource.com/8301
Reviewed-by: Adam Langley <agl@google.com>
2016-06-15 21:29:50 +00:00
David Benjamin
7af3140a82 Remove ASN.1 BIOs.
These are more remnants of CMS. Nothing uses them directly. Removing them means
more code we don't have to think about when importing upstream patches.

Also take out a bunch of dead prototypes nearby.

Change-Id: Ife094d9d2078570006d1355fa4e3323f435be608
Reviewed-on: https://boringssl-review.googlesource.com/8244
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-14 17:39:30 +00:00
David Benjamin
ae0bf3b7c1 Remove ASN1_parse and ASN1_parse_dump.
These are more pretty-printers for generic ASN.1 structures. They're never
called externally and otherwise are only used in the X509V3_EXT_PARSE_UNKNOWN
mode for the X509 pretty-print functions. That makes unknown extensions
pretty-print as ASN.1 structures.

This is a rather useless feature, so have that fall through to
X509V3_EXT_DUMP_UNKNOWN which does a hexdump instead.

(The immediate trigger is I don't know what |op| is in upstream's
8c918b7b9c93ba38790ffd1a83e23c3684e66f57 and don't think it is worth the time
to puzzle that out and verify it. Better ditch this code completely.)

Change-Id: I0217906367d83056030aea64ef344d4fedf74763
Reviewed-on: https://boringssl-review.googlesource.com/8243
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-14 17:39:17 +00:00
David Benjamin
e77b16ef71 Remove ASN.1 print hooks.
These functions are never instantiated. (They're a remnant of the PKCS#7 and
CMS bits.) Next time upstream touches this code, we don't have to puzzle
through the diff and import it.

Change-Id: I67c2102ae13e8e0527d858e1c63637dd442a4ffb
Reviewed-on: https://boringssl-review.googlesource.com/8242
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-14 17:38:31 +00:00
David Benjamin
d0c677cd8e Avoid illegal pointers in asn1_string_canon.
(Imported from upstream's 3892b95750b6aa5ed4328a287068f7cdfb9e55bc.)

More reasonable would have been to drop |to| altogether and act on from[len-1],
but I suppose this works.

Change-Id: I280b4991042b4d330ba034f6a631f8421ddb2643
Reviewed-on: https://boringssl-review.googlesource.com/8241
Reviewed-by: Adam Langley <agl@google.com>
2016-06-13 21:57:05 +00:00
David Benjamin
a353cdb671 Wrap MSVC-only warning pragmas in a macro.
There's a __pragma expression which allows this. Android builds us Windows with
MinGW for some reason, so we actually do have to tolerate non-MSVC-compatible
Windows compilers. (Clang for Windows is much more sensible than MinGW and
intentionally mimicks MSVC.)

MinGW doesn't understand MSVC's pragmas and warns a lot. #pragma warning is
safe to suppress, so wrap those to shush them. This also lets us do away with a
few ifdefs.

Change-Id: I1f5a8bec4940d4b2d947c4c1cc9341bc15ec4972
Reviewed-on: https://boringssl-review.googlesource.com/8236
Reviewed-by: Adam Langley <agl@google.com>
2016-06-09 21:29:36 +00:00
David Benjamin
2e8ba2d25d Use one C99-style for loop.
Switch one for loop to the new spelling as a canary. All our compilers seem to
support it fine, except GCC needs to be told to build with -std=c99. (And, upon
doing so, it'll require _XOPEN_SOURCE=700 for pthread_rwlock_t.)

We'll let this sit for a bit until it's gotten into downstreams without issue
and then open the floodgates.

BUG=47

Change-Id: I1c69d4b2df8206e0b55f30aa59b5874d82fca893
Reviewed-on: https://boringssl-review.googlesource.com/8235
Reviewed-by: Adam Langley <agl@google.com>
2016-06-09 21:27:54 +00:00
David Benjamin
bf1905a910 Revert "Import chacha-x86.pl fix."
This reverts commit 762e1d039c. We no longer need
to support out < in. Better to keep the assembly aligned with upstream.

Change-Id: I345bf822953bd0e1e79ad5ab4d337dcb22e7676b
Reviewed-on: https://boringssl-review.googlesource.com/8232
Reviewed-by: Adam Langley <agl@google.com>
2016-06-09 19:49:12 +00:00
David Benjamin
2446db0f52 Require in == out for in-place encryption.
While most of OpenSSL's assembly allows out < in too, some of it doesn't.
Upstream seems to not consider this a problem (or, at least, they're failing to
make a decision on whether it is a problem, so we should assume they'll stay
their course). Accordingly, require aliased buffers to exactly align so we
don't have to keep chasing this down.

Change-Id: I00eb3df3e195b249116c68f7272442918d7077eb
Reviewed-on: https://boringssl-review.googlesource.com/8231
Reviewed-by: Adam Langley <agl@google.com>
2016-06-09 19:49:03 +00:00
David Benjamin
1a01e1fc88 Remove in-place TLS record assembly for now.
Decrypting is very easy to do in-place, but encrypting in-place is a hassle.
The rules actually were wrong due to record-splitting. The aliasing prefix and
the alignment prefix actually differ by 1. Take it out for now in preparation
for tightening the aliasing rules.

If we decide to do in-place encrypt later, probably it'd be more useful to
return header + in-place ciphertext + trailer. (That, in turn, needs a
scatter/gather thing on the AEAD thanks to TLS 1.3's padding and record type
construction.) We may also wish to rethink how record-splitting works here.

Change-Id: I0187d39c541e76ef933b7c2c193323164fd8a156
Reviewed-on: https://boringssl-review.googlesource.com/8230
Reviewed-by: Adam Langley <agl@google.com>
2016-06-09 19:47:44 +00:00
David Benjamin
67cb49d045 Fix BN_mod_word bug.
On systems where we do not have BN_ULLONG (notably Win64), BN_mod_word() can
return incorrect results if the supplied modulus is too big.

(Imported from upstream's e82fd1b4574c8908b2c3bb68e1237f057a981820 and
e4c4b2766bb97b34ea3479252276ab7c66311809.)

Change-Id: Icee8a7c5c67a8ee14c276097f43a7c491e68c2f9
Reviewed-on: https://boringssl-review.googlesource.com/8233
Reviewed-by: Adam Langley <agl@google.com>
2016-06-09 19:05:31 +00:00
David Benjamin
8f1e113a73 Ensure verify error is set when X509_verify_cert() fails.
Set ctx->error = X509_V_ERR_OUT_OF_MEM when verification cannot
continue due to malloc failure.  Similarly for issuer lookup failures
and caller errors (bad parameters or invalid state).

Also, when X509_verify_cert() returns <= 0 make sure that the
verification status does not remain X509_V_OK, as a last resort set
it it to X509_V_ERR_UNSPECIFIED, just in case some code path returns
an error without setting an appropriate value of ctx->error.

Add new and some missing error codes to X509 error -> SSL alert switch.

(Imported from upstream's 5553a12735e11bc9aa28727afe721e7236788aab.)

Change-Id: I3231a6b2e72a3914cb9316b8e90ebaee009a1c5f
Reviewed-on: https://boringssl-review.googlesource.com/8170
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-09 17:29:39 +00:00
David Benjamin
1e3376a790 Add missing copyright header.
x25519-x86_64.c, like the rest of crypto/curve25519, is descended from
SUPERCOP. Add the usual copyright header along with the SUPERCOP attribution.

BUG=64

Change-Id: I43f3de0731f33ab2aa48492c4b742e9f23c87fe1
Reviewed-on: https://boringssl-review.googlesource.com/8195
Reviewed-by: Adam Langley <agl@google.com>
2016-06-08 20:13:46 +00:00