We zero out memory in |OPENSSL_free| already.
Change-Id: I84a0f3cdfadd4544c0fade1d3d727baa6496ffe5
Reviewed-on: https://boringssl-review.googlesource.com/c/33446
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
It's not clear that CPUID will always report the correct value here,
especially for hyper-threading environments. It also isn't clear that
the assumptions made by AMD processors are correct and will always be
correct. It also seems likely that, if a code path is
security-sensitive w.r.t. SMT, it is probably also security-sensitive
w.r.t. other processor (mis)features. Finally, it isn't clear that all
dynamic analysis (fuzzing, SDE, etc.) is done separately for the cross
product of all CPU feature combinations * the value of this bit.
With all that in mind, instruct code sensitive to this bit to always
choose the more conservative path.
I only found one place that's sensitive to this bit, though I didn't
look too hard:
```
aes_nohw_cbc_encrypt:
[...]
leaq OPENSSL_ia32cap_P(%rip),%r10
mov (%r10), %r10d
[...]
bt \$28,%r10d
jc .Lcbc_slow_prologue
```
I didn't verify that the code in the HTT-enabled paths is any better
than the code in the HTT-disabled paths.
Change-Id: Ifd643e6a1301e5ca2174b84c344eb933d49e0067
Reviewed-on: https://boringssl-review.googlesource.com/c/33404
Reviewed-by: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
We don't support Windows XP, so we can rely on SRWLOCK. Per
https://crbug.com/592752, SRWLOCKs are more efficient and less of a
hassle to use. We'd previously converted CRYPTO_MUTEX to SRWLOCK, but I
missed this one. Not that this one lock matters much, may as well. It's
less initialization code.
Change-Id: I7ae435be5202b0a19f42015c9abff932dc04dbc7
Reviewed-on: https://boringssl-review.googlesource.com/c/33445
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This way we'll notice if we ever generate a bad padding extension or
duplicate an extension. This did require fixing one of the JDK11 test
vectors. When I manually added a padding extension, I forgot the
contents were all zeros and incorrectly put in "padding" instead.
Change-Id: Ifec5bb01a739014ed0fdf5b49b82a6b514646e9a
Reviewed-on: https://boringssl-review.googlesource.com/c/33444
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
On Linux, this introduces yet another symbol to blacklist.
Change-Id: Ieafe45a25f3b41da6c6934dd9488f4ee400bcab9
Reviewed-on: https://boringssl-review.googlesource.com/c/33350
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This teaches read_symbols.go to use debug/pe, and fixes miscellaneous
issues with NASM. It also reveals a problem with this strategy of
getting symbols out at the linker level: inline functions. I'm thinking
a better long-term mechanism may be to parse our header files.
Change-Id: I11b008543a7a97db3db9d4062ee4ddb910d174b7
Reviewed-on: https://boringssl-review.googlesource.com/c/33349
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Apparently Windows' .lib files are also ar. Add tests.
Change-Id: Ie35f410268086b8fe6d4d1b491de3f30a46309dd
Reviewed-on: https://boringssl-review.googlesource.com/c/33348
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
One less bit of special-casing in read_symbols.go. We filter out the
sysv-style symbol table, so we should filter out the macOS one too.
Add tests for util/ar to cover this and the Linux case.
Change-Id: Id16d8b0526c1b6e0149df1df4006848d7b3a4b2f
Reviewed-on: https://boringssl-review.googlesource.com/c/33347
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Uses of BORINGSSL_MAKE_DELETER must be inside BSSL_NAMESPACE_BEGIN for
the specializations to work.
Change-Id: Ib96cf5d235586b24c052973d7034c0e5a8019f17
Reviewed-on: https://boringssl-review.googlesource.com/c/33346
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
The symbol-listing code already removes the leading underscore.
Change-Id: I2f93382af932e8027f2aa8596886ba685836b3a6
Reviewed-on: https://boringssl-review.googlesource.com/c/33345
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
It's more verbose, but trimming the panics should make it easier to move
to a library (e.g. a symbol checker) or unit test later.
Change-Id: Iab37eff2689955e58057528be092d6dd5d8d26bc
Reviewed-on: https://boringssl-review.googlesource.com/c/33344
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Squatting these names is rather rude. Also hex_to_string and
string_to_hex do the opposite of what one would expect, so rename them
to something a bit less confusing.
Update-Note: This removes some random utility functions. name_cmp is
very specific to OpenSSL's config file format, so it's unlikely anyone
is relying on it. I removed the one use of hex_to_string and
string_to_hex I could find.
Change-Id: I01554885ad306251e6982100d0b15cd89b1cdea7
Reviewed-on: https://boringssl-review.googlesource.com/c/33364
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Errors are supposed to be fragments that go into sentences, rather than
sentences themselves.
Change-Id: I6569fce25535475162c85e7b0db7eeb62c93febd
Reviewed-on: https://boringssl-review.googlesource.com/c/33324
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Folks keep assuming checked-in assembly files are the source. Between
the preprocessor, delocate, NASM not using the C preprocessor, and GAS's
arch-specific comment syntax, comment markers are kind of a disaster.
This set appears to work for now.
Change-Id: I48e26dafb444dfa310df80dcce87ac291fde8037
Reviewed-on: https://boringssl-review.googlesource.com/c/33304
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
JDK 11 shipped with a TLS 1.3 implementation enabled by default.
Unfortunately, that implementation does not work and fails to send the
SNI extension on resumption. See
https://bugs.openjdk.java.net/browse/JDK-8211806.
This means servers which enable TLS 1.3 will see JDK 11 clients work on
the first connection and then fail on all subsequent connections. Add
SSL_set_jdk11_workaround which configures a workaround to fingerprint
JDK 11 and disable TLS 1.3 with the faulty clients.
JDK 11 also implemented the downgrade signal, which means that
connections that trigger the workaround also must not send the downgrade
signal. Unfortunately, the downgrade signal's security properties are
sensitive to the existence of any unmarked TLS 1.2 ServerHello paths. To
salvage this, pick a new random downgrade marker for this scenario and
modify the client to treat it as an alias of the standard one.
Per the link above, JDK 11.0.2 will fix this bug. Hopefully the
workaround can be retired sometime after it is released.
Change-Id: I0627609a8cadf7cc214073eb7f1e880acdf613ef
Reviewed-on: https://boringssl-review.googlesource.com/c/33284
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
ClusterFuzz folks want to switch to a shared library build, so call into
these another way. The new setup isn't quite ideal because the real code
builds as C and now tests as C++, but it should work.
Bug: chromium:907115
Change-Id: Ia1ffc18832739b09fee21b84ee5d181e61feaa15
Reviewed-on: https://boringssl-review.googlesource.com/c/33285
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
clang-format seems to have decided to format things differently now.
This will eliminate diff noise in the future when there are actual
changes.
Change-Id: I1f94cf0f0859023b6c926119f39bf0a587464e52
Reviewed-on: https://boringssl-review.googlesource.com/c/33266
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Change-Id: I48a1e9e27013bb91b783949b65463208516bb3d2
Reviewed-on: https://boringssl-review.googlesource.com/c/33265
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Put data in .rodata and, rather than adr, use the combination of adrp :pg_hi21:
and add :lo12:. Unfortunately, iOS uses different syntax, so we must add more
transforms to arm-xlate.pl.
Tested manually by:
1. Use Android NDK r19-beta1
2. Follow usual instructions to configure CMake for aarch64, but pass
-DCMAKE_EXE_LINKER_FLAGS="-fuse-ld=lld -Wl,-execute-only".
3. Build. Confirm with readelf -l tool/bssl that .text is not marked
readable.
4. Push the test binaries onto a Pixel 3. Test normally and with
--cpu={none,neon,crypto}. I had to pass --gtest_filter=-*Thread* to
crypto_test. There appears to be an issue with some runtime function
that's unrelated to our assembly.
No measurable performance difference.
Going forward, to support this, we will need to apply similar changes to
all other AArch64 assembly. This is relatively straightforward, but may
be a little finicky for dual-AArch32/AArch64 files (aesv8-armx.pl).
Update-Note: Assembly syntax is a mess. There's a decent chance some
assembler will get offend.
Change-Id: Ib59b921d4cce76584320fefd23e6bb7ebd4847eb
Reviewed-on: https://boringssl-review.googlesource.com/c/33245
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
The standard computation model for constant-time code is that memory
access patterns must be independent of secret data.
BN_mod_exp_mont_consttime was previously written to a slightly weaker
model: only cacheline access patterns must be independent of secret
data. It assumed accesses within a cacheline were indistinguishable.
The CacheBleed attack (https://eprint.iacr.org/2016/224.pdf) showed this
assumption was false. Cache lines may be divided into cache banks, and
the researchers were able to measure cache bank contention pre-Haswell.
For Haswell, the researchers note "But, as Haswell does show timing
variations that depend on low address bits [19], it may be vulnerable to
similar attacks."
OpenSSL's fix to CacheBleed was not to adopt the standard constant-time
computation model. Rather, it now assumes accesses within a 16-byte
cache bank are indistinguishable, at least in the C copy_from_prebuf
path. These weaker models failed before with CacheBleed, so avoiding
such assumptions seems prudent. (The [19] citation above notes a false
dependence between memory addresses with a distance of 4k, which may be
what the paper was referring to.) Moreover, the C path is largely unused
on x86_64 (which uses mont5 asm), so it is especially questionable for
the generic C code to make assumptions based on x86_64.
Just walk the entire table in the C implementation. Doing so as-is comes
with a performance hit, but the striped memory layout is, at that point,
useless. We regain the performance loss (and then some) by using a more
natural layout. Benchmarks below.
This CL does not touch the mont5 assembly; I haven't figured out what
it's doing yet.
Pixel 3, aarch64:
Before:
Did 3146 RSA 2048 signing operations in 10009070us (314.3 ops/sec)
Did 447 RSA 4096 signing operations in 10026666us (44.6 ops/sec)
After:
Did 3210 RSA 2048 signing operations in 10010712us (320.7 ops/sec)
Did 456 RSA 4096 signing operations in 10063543us (45.3 ops/sec)
Pixel 3, armv7:
Before:
Did 2688 RSA 2048 signing operations in 10002266us (268.7 ops/sec)
Did 459 RSA 4096 signing operations in 10004785us (45.9 ops/sec)
After:
Did 2709 RSA 2048 signing operations in 10001299us (270.9 ops/sec)
Did 459 RSA 4096 signing operations in 10063737us (45.6 ops/sec)
x86_64 Broadwell, mont5 assembly disabled:
(This configuration is not actually shipped anywhere, but seemed a
useful data point.)
Before:
Did 14274 RSA 2048 signing operations in 10009130us (1426.1 ops/sec)
Did 2448 RSA 4096 signing operations in 10046921us (243.7 ops/sec)
After:
Did 14706 RSA 2048 signing operations in 10037908us (1465.0 ops/sec)
Did 2538 RSA 4096 signing operations in 10059986us (252.3 ops/sec)
Change-Id: If41da911d4281433856a86c6c8eadf99cd33e2d8
Reviewed-on: https://boringssl-review.googlesource.com/c/33268
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
It's a table of BN_ULONGs. No particular need to use unsigned char.
Change-Id: I397883cef9f39fb162c2b0bfbd6a70fe399757a2
Reviewed-on: https://boringssl-review.googlesource.com/c/33267
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Make it more obvious something is happening.
Change-Id: Ie68d1e96a9bedd4b572c1cc99910348f89f07624
Reviewed-on: https://boringssl-review.googlesource.com/c/33244
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>
We can actually use modules now.
Change-Id: I0bd8abaf4e3318069f93fa17e89b4804d03944eb
Reviewed-on: https://boringssl-review.googlesource.com/c/33205
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Bug: chromium:347402
Change-Id: I1442b595ed7296b9d9fe88357565f68e1ab80ffd
Reviewed-on: https://boringssl-review.googlesource.com/c/32644
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>
We test all Intel variants via SDE. For ARM, we can do the next best
thing and tweak with OPENSSL_armcap_P. If the host CPU does not support
the instructions we wish to test, skip it, but print something so we
know whether we need a more featureful test device.
Also fix the "CRASHED" status to "CRASH", to match
https://chromium.googlesource.com/chromium/src/+/master/docs/testing/json_test_results_format.md
(It's unclear if anything actually parses that JSON very carefully...)
Bug: 19
Change-Id: I811cc00a0d210a454287ac79c06f18fbc54f96dd
Reviewed-on: https://boringssl-review.googlesource.com/c/33204
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Contraction was always and only done immediately prior to calling
|p224_felem_to_generic| so merge it into that function.
Change-Id: If4fb46c6305ba724dfff15e8362a094c599f3f2c
Reviewed-on: https://boringssl-review.googlesource.com/c/33165
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
cfd50c63 switched to using the add/dbl of p224_64.c, but the outputs
weren't contracted before being returned and could be out of range,
giving invalid results.
Change-Id: I3cc295c7ddbff43375770dbafe73b37a668e4e6b
Reviewed-on: https://boringssl-review.googlesource.com/c/33184
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
C99 added macros such as PRIu64 to inttypes.h, but it said to exclude them from
C++ unless __STDC_FORMAT_MACROS or __STDC_CONSTANT_MACROS was defined. This
text was never incorporated into any C++ standard and explicitly overruled in
C++11.
Some libc headers followed C99. Notably, glibc prior to 2.18
(https://sourceware.org/bugzilla/show_bug.cgi?id=15366) and old versions of the
Android NDK.
In the NDK, although it was fixed some time ago (API level 20), the NDK used to
use separate headers per API level. Only applications using minSdkVersion >= 20
would get the fix. Starting NDK r14, "unified" headers are available which,
among other things, make the fix available (opt-in) independent of
minSdkVersion. In r15, unified headers are opt-out, and in r16 they are
mandatory.
Try removing these and see if anyone notices. The former is past our five year
watermark. The latter is not and Android has hit
https://boringssl-review.googlesource.com/c/boringssl/+/32686 before, but
unless it is really widespread, it's probably simpler to ask consumers to
define __STDC_CONSTANT_MACROS and __STDC_FORMAT_MACROS globally.
Update-Note: If you see compile failures relating to PRIu64, UINT64_MAX, and
friends, update your glibc or NDK. As a short-term fix, add
__STDC_CONSTANT_MACROS and __STDC_FORMAT_MACROS to your build, but get in touch
so we have a sense of how widespread it is.
Bug: 198
Change-Id: I56cca5f9acdff803de1748254bc45096e4c959c2
Reviewed-on: https://boringssl-review.googlesource.com/c/33146
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>
The change seems to have stuck, so bring us closer to C/++11 static asserts.
(If we later find we need to support worse toolchains, we can always use
__LINE__ or __COUNTER__ to avoid duplicate typedef names and just punt on
embedding the message into the type name.)
Change-Id: I0e5bb1106405066f07740728e19ebe13cae3e0ee
Reviewed-on: https://boringssl-review.googlesource.com/c/33145
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
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Chromium has now switched to building our assembly with NASM
(https://crbug.com/766721), which is more maintained. Next step
is to switch remaining folks (Conscrypt, not sure if there's anyone
else) and we'll drop Yasm.
Change-Id: If4f45399b48d0d7477afb47647e83e7250bf854f
Reviewed-on: https://boringssl-review.googlesource.com/c/33144
Reviewed-by: Adam Langley <agl@google.com>
The function does not take ownership of |e| and this makes that clear.
Change-Id: I53bb5fa94bec5d16d1c904b59391d36df7abbde6
Reviewed-on: https://boringssl-review.googlesource.com/c/33164
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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With the allocations and BN_CTX gone, ECDH and point2oct are much, much
shorter.
Bug: 242
Change-Id: I3421822e94100f7eb2f5f2373df7fb3b3311365e
Reviewed-on: https://boringssl-review.googlesource.com/c/33071
Commit-Queue: David Benjamin <davidben@google.com>
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(Otherwise the individual-file build breaks.)
Change-Id: Id3defd08cd2b49af1d8eb6890bd8454332c1aa1e
Reviewed-on: https://boringssl-review.googlesource.com/c/33124
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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These are used for field elements too.
Change-Id: I74e3dbcafdce34ad507f64a0718e0420b56b51ae
Reviewed-on: https://boringssl-review.googlesource.com/c/33070
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: Adam Langley <agl@google.com>
Now the only allocations in ECDSA are the ECDSA_SIG input and output.
Change-Id: If1fcde6dc2ee2c53f5adc16a7f692e22e9c238de
Reviewed-on: https://boringssl-review.googlesource.com/c/33069
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: Adam Langley <agl@google.com>
For simplicity, punt order > field or width mismatches. Analogous
optimizations are possible, but the generic path works fine and no
commonly-used curve looks hits those cases.
Before:
Did 5888 ECDSA P-384 verify operations in 3094535us (1902.7 ops/sec)
After [+6.7%]:
Did 6107 ECDSA P-384 verify operations in 3007515us (2030.6 ops/sec)
Also we can fill in p - order generically and avoid extra copies of some
constants.
Change-Id: I38e1b6d51b28ed4f8cb74697b00a4f0fbc5efc3c
Reviewed-on: https://boringssl-review.googlesource.com/c/33068
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: Adam Langley <agl@google.com>
The Clang used in the Android SDK, at least, defines both __ARM_NEON__
and __ARM_NEON for ARMv7, but only the latter for AArch64.
This change switches each use of __ARM_NEON__ to accept either.
Change-Id: I3b5d5badc9ff0210888fd456e9329dc53a2b9b09
Reviewed-on: https://boringssl-review.googlesource.com/c/33104
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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This removes the failure cases for cmp_x_coordinate, this clearing our
earlier dilemma.
Change-Id: I057f705e49b0fb5c3fc9616ee8962a3024097b24
Reviewed-on: https://boringssl-review.googlesource.com/c/33065
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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This is in preparation for removing the BIGNUM from cmp_x_coordinate.
Change-Id: Id8394248e3019a4897c238289f039f436a13679d
Reviewed-on: https://boringssl-review.googlesource.com/c/33064
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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I forgot to refresh the public key in those tests, so they weren't
actually testing what they were supposed to. With this fix, injecting
too larger of a P_MINUS_ORDER into p256-x86_64.c now breaks tests.
Change-Id: I5d10a85c84b09629448beef67c86de607525fc71
Reviewed-on: https://boringssl-review.googlesource.com/c/33044
Reviewed-by: Adam Langley <agl@google.com>
Reportedly some combination of C++ modules and old clang gets upset.
That seems an inadvisable combination, but including headers under
extern "C" is rude, so fix it.
Change-Id: I12f873e1be41697b67f2b1145387a3c6fc769c28
Reviewed-on: https://boringssl-review.googlesource.com/c/33024
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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Having to lazily create it is a little wordy, and we append to it in
three places now. V2ClientHello makes this slightly finicky, but I think
this is still clearer.
Change-Id: If931db0b56efd7f0728c0b7d119886864dd7933a
Reviewed-on: https://boringssl-review.googlesource.com/c/32824
Commit-Queue: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@google.com>
This function is not EC_METHOD-specific, nor is there any reason it
would be (we do not support GF2m).
Change-Id: I4896cd16a107ad6a99be445a0dc0896293e8c8f9
Reviewed-on: https://boringssl-review.googlesource.com/c/32884
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
