Change-Id: Id8b69bb6103dd938f4c6d0d2ec24f3d50ba5513c
Update-Note: fixes b/70034392
Reviewed-on: https://boringssl-review.googlesource.com/23744
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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Rejecting values where we'd previous called BN_nnmod may have been
overly ambitious. In the long run, all the supported ECC APIs (ECDSA*,
ECDH_compute_key, and probably some additional new ECDH API) will be
using the EC_SCALAR version anyway, so this doesn't really matter.
Change-Id: I79cd4015f2d6daf213e4413caa2a497608976f93
Reviewed-on: https://boringssl-review.googlesource.com/23584
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
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This is only a hair faster than the signing change, but still something.
I kept the call to BN_mod_inverse_odd as that appears to be faster
(constant time is not a concern for verification).
Before:
Did 22855 ECDSA P-224 verify operations in 3015099us (7580.2 ops/sec)
Did 21276 ECDSA P-256 verify operations in 3083284us (6900.4 ops/sec)
Did 2635 ECDSA P-384 verify operations in 3032582us (868.9 ops/sec)
Did 1240 ECDSA P-521 verify operations in 3068631us (404.1 ops/sec)
After:
Did 23310 ECDSA P-224 verify operations in 3056226us (7627.1 ops/sec)
Did 21210 ECDSA P-256 verify operations in 3035765us (6986.7 ops/sec)
Did 2666 ECDSA P-384 verify operations in 3023592us (881.7 ops/sec)
Did 1209 ECDSA P-521 verify operations in 3054040us (395.9 ops/sec)
Change-Id: Iec995b1a959dbc83049d0f05bdc525c14a95c28e
Reviewed-on: https://boringssl-review.googlesource.com/23077
Reviewed-by: Adam Langley <agl@google.com>
Hasse's theorem implies at most one subtraction is necessary. This is
still using BIGNUM for now because field elements
(EC_POINT_get_affine_coordinates_GFp) are BIGNUMs.
This gives an additional 2% speedup for signing.
Before:
Did 16000 ECDSA P-224 signing operations in 1064799us (15026.3 ops/sec)
Did 19000 ECDSA P-256 signing operations in 1007839us (18852.2 ops/sec)
Did 1078 ECDSA P-384 signing operations in 1079413us (998.7 ops/sec)
Did 484 ECDSA P-521 signing operations in 1083616us (446.7 ops/sec)
After:
Did 16000 ECDSA P-224 signing operations in 1054918us (15167.1 ops/sec)
Did 20000 ECDSA P-256 signing operations in 1037338us (19280.1 ops/sec)
Did 1045 ECDSA P-384 signing operations in 1049073us (996.1 ops/sec)
Did 484 ECDSA P-521 signing operations in 1085492us (445.9 ops/sec)
Change-Id: I2bfe214f968eca7a8e317928c0f3daf1a14bca90
Reviewed-on: https://boringssl-review.googlesource.com/23076
Reviewed-by: Adam Langley <agl@google.com>
None of the asymmetric crypto we inherented from OpenSSL is
constant-time because of BIGNUM. BIGNUM chops leading zeros off the
front of everything, so we end up leaking information about the first
word, in theory. BIGNUM functions additionally tend to take the full
range of inputs and then call into BN_nnmod at various points.
All our secret values should be acted on in constant-time, but k in
ECDSA is a particularly sensitive value. So, ecdsa_sign_setup, in an
attempt to mitigate the BIGNUM leaks, would add a couple copies of the
order.
This does not work at all. k is used to compute two values: k^-1 and kG.
The first operation when computing k^-1 is to call BN_nnmod if k is out
of range. The entry point to our tuned constant-time curve
implementations is to call BN_nnmod if the scalar has too many bits,
which this causes. The result is both corrections are immediately undone
but cause us to do more variable-time work in the meantime.
Replace all these computations around k with the word-based functions
added in the various preceding CLs. In doing so, replace the BN_mod_mul
calls (which internally call BN_nnmod) with Montgomery reduction. We can
avoid taking k^-1 out of Montgomery form, which combines nicely with
Brian Smith's trick in 3426d10119. Along
the way, we avoid some unnecessary mallocs.
BIGNUM still affects the private key itself, as well as the EC_POINTs.
But this should hopefully be much better now. Also it's 10% faster:
Before:
Did 15000 ECDSA P-224 signing operations in 1069117us (14030.3 ops/sec)
Did 18000 ECDSA P-256 signing operations in 1053908us (17079.3 ops/sec)
Did 1078 ECDSA P-384 signing operations in 1087853us (990.9 ops/sec)
Did 473 ECDSA P-521 signing operations in 1069835us (442.1 ops/sec)
After:
Did 16000 ECDSA P-224 signing operations in 1064799us (15026.3 ops/sec)
Did 19000 ECDSA P-256 signing operations in 1007839us (18852.2 ops/sec)
Did 1078 ECDSA P-384 signing operations in 1079413us (998.7 ops/sec)
Did 484 ECDSA P-521 signing operations in 1083616us (446.7 ops/sec)
Change-Id: I2a25e90fc99dac13c0616d0ea45e125a4bd8cca1
Reviewed-on: https://boringssl-review.googlesource.com/23075
Reviewed-by: Adam Langley <agl@google.com>
Imported from upstream's a78324d95bd4568ce2c3b34bfa1d6f14cddf92ef. I
think the "regression" part of that change is some tweak to BN_usub and
I guess the bn_*_words was to compensate for it, but we may as well
import it. Apparently the loop instruction is terrible.
Before:
Did 39871000 bn_add_words operations in 1000002us (39870920.3 ops/sec)
Did 38621750 bn_sub_words operations in 1000001us (38621711.4 ops/sec)
After:
Did 64012000 bn_add_words operations in 1000007us (64011551.9 ops/sec)
Did 81792250 bn_sub_words operations in 1000002us (81792086.4 ops/sec)
loop sets no flags (even doing the comparison to zero without ZF) while
dec sets all flags but CF, so Andres and I are assuming that because
this prevents Intel from microcoding it to dec/jnz, they otherwise can't
be bothered to add more circuitry since every compiler has internalized
by now to never use loop.
Change-Id: I3927cd1c7b707841bbe9963e3d4afd7ba9bd9b36
Reviewed-on: https://boringssl-review.googlesource.com/23344
Reviewed-by: Adam Langley <agl@google.com>
These allow precomputation of k, but bypass our nonce hardening and also
make it harder to excise BIGNUM. As a bonus, ECDSATest.SignTestVectors
is now actually covering the k^-1 and r computations.
Change-Id: I4c71dae162874a88a182387ac43999be9559ddd7
Reviewed-on: https://boringssl-review.googlesource.com/23074
Reviewed-by: Adam Langley <agl@google.com>
wpa_supplicant appear to be using these.
Change-Id: I1f220cae69162901bcd9452e8daf67379c5e276c
Reviewed-on: https://boringssl-review.googlesource.com/23324
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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mem.h for |OPENSSL_cleanse| and bn/internal.h for things like
|bn_less_than_words| and |bn_correct_top|.
Change-Id: I3c447a565dd9e4f18fb2ff5d59f80564b4df8cea
Reviewed-on: https://boringssl-review.googlesource.com/23164
Reviewed-by: Adam Langley <agl@google.com>
Change-Id: Id12ab478b6ba441fb1b6f4c2f9479384fc3fbdb6
Reviewed-on: https://boringssl-review.googlesource.com/23144
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
|EC_POINT_mul| is almost exclusively used with reduced scalars, with
this exception. This comes from consumers following NIST SP 800-56A
section 5.6.2.3.2. (Though all our curves have cofactor one, so this
check isn't useful.)
Add a test for this so we don't accidentally break it.
Change-Id: I42492db38a1ea03acec4febdd7945c8a3933530a
Reviewed-on: https://boringssl-review.googlesource.com/23084
Reviewed-by: Adam Langley <agl@google.com>
I still need to revive the original CL, but right now I'm interested in
giving every EC_GROUP an order_mont and having different ownership of
that field between built-in and custom groups is kind of a nuisance. If
I'm going to do that anyway, better to avoid computing the entire
EC_GROUP in one go.
I'm using some manual locking rather than CRYPTO_once here so that it
behaves well in the face of malloc errors. Not that we especially care,
but it was easy to do.
This speeds up our ECDH benchmark a bit which otherwise must construct the
EC_GROUP each time (matching real world usage).
Before:
Did 7619 ECDH P-224 operations in 1003190us (7594.8 ops/sec)
Did 7518 ECDH P-256 operations in 1060844us (7086.8 ops/sec)
Did 572 ECDH P-384 operations in 1055878us (541.7 ops/sec)
Did 264 ECDH P-521 operations in 1062375us (248.5 ops/sec)
After:
Did 8415 ECDH P-224 operations in 1066695us (7888.9 ops/sec)
Did 7952 ECDH P-256 operations in 1022819us (7774.6 ops/sec)
Did 572 ECDH P-384 operations in 1055817us (541.8 ops/sec)
Did 264 ECDH P-521 operations in 1060008us (249.1 ops/sec)
Bug: 20
Change-Id: I7446cd0a69a840551dcc2dfabadde8ee1e3ff3e2
Reviewed-on: https://boringssl-review.googlesource.com/23073
Reviewed-by: Adam Langley <agl@google.com>
Later code will take advantage of these invariants. Enforcing them on
custom curves avoids making them go through a custom codepath.
Change-Id: I23cee72a90c2e4846b41e03e6be26bc3abeb4a45
Reviewed-on: https://boringssl-review.googlesource.com/23072
Reviewed-by: Adam Langley <agl@google.com>
These can be used to invert values in ECDSA. Unlike their BIGNUM
counterparts, the caller is responsible for taking values in and out of
Montgomery domain. This will save some work later on in the ECDSA
computation.
Change-Id: Ib7292900a0fdeedce6cb3e9a9123c94863659043
Reviewed-on: https://boringssl-review.googlesource.com/23071
Reviewed-by: Adam Langley <agl@google.com>
These use the square and multiply functions added earlier.
Change-Id: I723834f9a227a9983b752504a2d7ce0223c43d24
Reviewed-on: https://boringssl-review.googlesource.com/23070
Reviewed-by: Adam Langley <agl@google.com>
bn_from_montgomery_in_place is actually constant-time. It is, of course,
only used by non-constant-time BIGNUM callers, but that will soon be
fixed.
Change-Id: I2b2c9943dc3b8d6a4b5b19a5bc4fa9ebad532bac
Reviewed-on: https://boringssl-review.googlesource.com/23069
Reviewed-by: Adam Langley <agl@google.com>
As part of excising BIGNUM from EC scalars, we will need a "words"
version of BN_mod_mul_montgomery. That, in turn, requires BN_sqr and
BN_mul for cases where we don't have bn_mul_mont.
BN_sqr and BN_mul have a lot of logic in there, with the most complex
cases being not even remotely constant time. Fortunately, those only
apply to RSA-sized numbers, not EC-sized numbers. (With the exception, I
believe, of 32-bit P-521 which just barely exceeds the cutoff.) Imposing
a limit also makes it easier to stack-allocate temporaries (BN_CTX
serves a similar purpose in BIGNUM).
Extract bn_mul_small and bn_sqr_small and test them as part of
bn_tests.txt. Later changes will build on these.
If we end up reusing these functions for RSA in the future (though that
would require tending to the egregiously non-constant-time code in the
no-asm build), we probably want to extract a version where there is an
explicit tmp parameter as in bn_sqr_normal rather than the stack bits.
Change-Id: If414981eefe12d6664ab2f5e991a359534aa7532
Reviewed-on: https://boringssl-review.googlesource.com/23068
Reviewed-by: Adam Langley <agl@google.com>
Also replace a pointless call to bn_mul_words with a memset.
Change-Id: Ief30ddab0e84864561b73fe2776bd0477931cf7f
Reviewed-on: https://boringssl-review.googlesource.com/23066
Reviewed-by: Adam Langley <agl@google.com>
This rewrites the internals with a "words" variant that can avoid
bn_correct_top. It still ultimately calls bn_correct_top as the calling
convention is sadly still BIGNUM, but we can lift that calling
convention out incrementally.
Performance seems to be comparable, if not faster.
Before:
Did 85000 ECDSA P-256 signing operations in 5030401us (16897.3 ops/sec)
Did 34278 ECDSA P-256 verify operations in 5048029us (6790.4 ops/sec)
After:
Did 85000 ECDSA P-256 signing operations in 5021057us (16928.7 ops/sec)
Did 34086 ECDSA P-256 verify operations in 5010416us (6803.0 ops/sec)
Change-Id: I1159746dfcc00726dc3f28396076a354556e6e7d
Reviewed-on: https://boringssl-review.googlesource.com/23065
Reviewed-by: Adam Langley <agl@google.com>
BN_from_montgomery_word doesn't have a constant memory access pattern.
Replace the pointer trick with constant_time_select_w. There is, of
course, still the bn_correct_top leak pervasive in BIGNUM itself.
I wasn't able to measure a performance on RSA operations before or after
this change, but the benchmarks would vary wildly run to run. But one
would assume the logic here is nothing compared to the actual reduction.
Change-Id: Ide761fde3a091a93679f0a803a287aa5d0d4600d
Reviewed-on: https://boringssl-review.googlesource.com/22904
Reviewed-by: Adam Langley <agl@google.com>
We don't currently have test coverage for the order_mont bits (or lack
thereof) for custom curves.
Change-Id: I865d547c783226a5a3d3d203e10b0e59bad36984
Reviewed-on: https://boringssl-review.googlesource.com/23064
Commit-Queue: David Benjamin <davidben@google.com>
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This was primarily for my own understanding, but this should hopefully
also be clearer and more amenable to using unsigned indices later.
Change-Id: I09cc3d55de0f7d9284d3b3168d8b0446274b2ab7
Reviewed-on: https://boringssl-review.googlesource.com/22889
Reviewed-by: Adam Langley <agl@google.com>
Normal shifts do the trick just fine and are less likely to tempt the
compiler into inserting a jump.
Change-Id: Iaa1da1b6f986fd447694fcde8f3525efb9eeaf11
Reviewed-on: https://boringssl-review.googlesource.com/22888
Reviewed-by: Adam Langley <agl@google.com>
Change-Id: I482093000ee2e4ba371c78b4f7f8e8b121e71640
Reviewed-on: https://boringssl-review.googlesource.com/22886
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
We capitalize things Go-style.
Change-Id: Id002efb8a85e4e1886164421bba059d9ca425964
Reviewed-on: https://boringssl-review.googlesource.com/22885
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
BN_generate_dsa_nonce will never generate a zero value of k.
Change-Id: I06964b815bc82aa678ffbc80664f9d788cf3851d
Reviewed-on: https://boringssl-review.googlesource.com/22884
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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Even without strict-aliasing, C does not allow casting pointers to types
that don't match their alignment. After this change, UBSan is happy with
our code at default settings but for the negative left shift language
bug.
Note: architectures without unaligned loads do not generate the same
code for memcpy and pointer casts. But even ARMv6 can perform unaligned
loads and stores (ARMv5 couldn't), so we should be okay here.
Before:
Did 11086000 AES-128-GCM (16 bytes) seal operations in 5000391us (2217026.6 ops/sec): 35.5 MB/s
Did 370000 AES-128-GCM (1350 bytes) seal operations in 5005208us (73923.0 ops/sec): 99.8 MB/s
Did 63000 AES-128-GCM (8192 bytes) seal operations in 5029958us (12525.0 ops/sec): 102.6 MB/s
Did 9894000 AES-256-GCM (16 bytes) seal operations in 5000017us (1978793.3 ops/sec): 31.7 MB/s
Did 316000 AES-256-GCM (1350 bytes) seal operations in 5005564us (63129.7 ops/sec): 85.2 MB/s
Did 54000 AES-256-GCM (8192 bytes) seal operations in 5054156us (10684.3 ops/sec): 87.5 MB/s
After:
Did 11026000 AES-128-GCM (16 bytes) seal operations in 5000197us (2205113.1 ops/sec): 35.3 MB/s
Did 370000 AES-128-GCM (1350 bytes) seal operations in 5005781us (73914.5 ops/sec): 99.8 MB/s
Did 63000 AES-128-GCM (8192 bytes) seal operations in 5032695us (12518.1 ops/sec): 102.5 MB/s
Did 9831750 AES-256-GCM (16 bytes) seal operations in 5000010us (1966346.1 ops/sec): 31.5 MB/s
Did 316000 AES-256-GCM (1350 bytes) seal operations in 5005702us (63128.0 ops/sec): 85.2 MB/s
Did 54000 AES-256-GCM (8192 bytes) seal operations in 5053642us (10685.4 ops/sec): 87.5 MB/s
(Tested with the no-asm builds; most of this code isn't reachable
otherwise.)
Change-Id: I025c365d26491abed0116b0de3b7612159e52297
Reviewed-on: https://boringssl-review.googlesource.com/22804
Reviewed-by: Adam Langley <agl@google.com>
These functions don't appear to do any stack manipulation thus all they
need are start/end directives in order for the correct CFI tables to be
emitted.
Change-Id: I4c94a9446030d363fa4bcb7c8975c689df3d21dc
Reviewed-on: https://boringssl-review.googlesource.com/22765
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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Change-Id: Id70cfc78c8d103117d4c2195206b023a5d51edc3
Reviewed-on: https://boringssl-review.googlesource.com/22764
Commit-Queue: Adam Langley <agl@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
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It's not clear if it's a feature or bug, but binutils-2.29[.1]
interprets 'adr' instruction with Thumb2 code reference differently,
in a way that affects calculation of addresses of constants' tables.
(Imported from upstream's b82acc3c1a7f304c9df31841753a0fa76b5b3cda.)
Change-Id: Ia0f5233a9fcfaf18b9d1164bf1c88217c0cbb60d
Reviewed-on: https://boringssl-review.googlesource.com/22724
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
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Generating a 2048-bit RSA key with e = 3 (don't do this), the failure
rate at 5*bits iterations appears to be around 7 failures in 1000 tries.
Bump the limit up to 32*bits. This should give a failure rate of around
2 failures in 10^14 tries.
(The FIPS 186-4 algorithm is meant for saner values of e, like 65537. e
= 3 implies a restrictive GCD requirement: the primes must both be 2 mod
3.)
Change-Id: Icd373f61e2eb90df5afaff9a0fc2b2fbb6ec3f0a
Reviewed-on: https://boringssl-review.googlesource.com/22584
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It always returns one, so just void it.
Change-Id: I8733cc3d6b20185e782cf0291e9c0dc57712bb63
Reviewed-on: https://boringssl-review.googlesource.com/22564
Reviewed-by: Adam Langley <agl@google.com>
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Credit to OSS-Fuzz for finding this.
CVE-2017-3736
(Imported from upstream's 668a709a8d7ea374ee72ad2d43ac72ec60a80eee and
420b88cec8c6f7c67fad07bf508dcccab094f134.)
This bug does not affect BoringSSL as we do not enable the ADX code.
Note the test vector had to be tweaked to take things in and out of
Montgomery form. (There may be something to be said for test vectors for
just BN_mod_mul_montgomery, though we'd need separate 64-bit and 32-bit
ones because R can be different.)
Change-Id: I832070731ac1c5f893f9c1746892fc4a32f023f5
Reviewed-on: https://boringssl-review.googlesource.com/22484
Commit-Queue: Adam Langley <agl@google.com>
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This partially reverts commit 38636aba74.
Some build on Android seems to break now. I'm not really sure what the
situation is, but if the weird common symbols are still there (can we
remove them?), they probably ought to have the right flags.
Change-Id: Ief589d763d16b995ac6be536505acf7596a87b30
Reviewed-on: https://boringssl-review.googlesource.com/22404
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
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Those EXPECTs should be ASSERTs to ensure bn is not null.
Change-Id: Icb54c242ffbde5f8eaa67f19f214c9eef13705ea
Reviewed-on: https://boringssl-review.googlesource.com/22366
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Currently we only check that the underlying EC_METHODs match, which
avoids the points being in different forms, but not that the points are
on the same curves. (We fixed the APIs early on so off-curve EC_POINTs
cannot be created.)
In particular, this comes up with folks implementating Java's crypto
APIs with ECDH_compute_key. These APIs are both unfortunate and should
not be mimicked, as they allow folks to mismatch the groups on the two
multiple EC_POINTs. Instead, ECDH APIs should take the public value as a
byte string.
Thanks also to Java's poor crypto APIs, we must support custom curves,
which makes this particularly gnarly. This CL makes EC_GROUP_cmp work
with custom curves and adds an additional subtle requirement to
EC_GROUP_set_generator.
Annoyingly, this change is additionally subtle because we now have a
reference cycle to hack around.
Change-Id: I2efbc4bd5cb65fee5f66527bd6ccad6b9d5120b9
Reviewed-on: https://boringssl-review.googlesource.com/22245
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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Also switch them to accepting a u16 length prefix. We appear not to have
any such tests right now, but RSA-2048 would involve modulus well larger
and primes just a hair larger than a u8 length prefix alows.
Change-Id: Icce8f1d976e159b945302fbba732e72913c7b724
Reviewed-on: https://boringssl-review.googlesource.com/22284
Commit-Queue: Steven Valdez <svaldez@google.com>
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I really need to resurrect the CL to make them entirely static
(https://crbug.com/boringssl/20), but, in the meantime, to make
replacing the EC_METHOD pointer in EC_POINT with EC_GROUP not
*completely* insane, make them refcounted.
OpenSSL did not do this because their EC_GROUPs are mutable
(EC_GROUP_set_asn1_flag and EC_GROUP_set_point_conversion_form). Ours
are immutable but for the two-function dance around custom curves (more
of OpenSSL's habit of making their objects too complex), which is good
enough to refcount.
Change-Id: I3650993737a97da0ddcf0e5fb7a15876e724cadc
Reviewed-on: https://boringssl-review.googlesource.com/22244
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This is an OpenSSL thing to support platforms where BN_ULONG is not
actually the size it claims to be. We define BN_ULONG to uint32_t and
uint64_t which are guaranteed by C to implement arithemetic modulo 2^32
and 2^64, respectively. Thus there is no need for any of this.
Change-Id: I098cd4cc050a136b9f2c091dfbc28dd83e01f531
Reviewed-on: https://boringssl-review.googlesource.com/21784
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>
This reverts commit f6942f0d22.
Reason for revert: This doesn't actually work in clang-cl. I
forgot we didn't have the clang-cl try bots enabled! :-( I
believe __asm__ is still okay, but I'll try it by hand
tomorrow.
Original change's description:
> Use uint128_t and __asm__ in clang-cl.
>
> clang-cl does not define __GNUC__ but is still a functioning clang. We
> should be able to use our uint128_t and __asm__ code in it on Windows.
>
> Change-Id: I67310ee68baa0c0c947b2441c265b019ef12af7e
> Reviewed-on: https://boringssl-review.googlesource.com/22184
> 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>
TBR=agl@google.com,davidben@google.com
Change-Id: I5c7e0391cd9c2e8cc0dfde37e174edaf5d17db22
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://boringssl-review.googlesource.com/22224
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>
clang-cl does not define __GNUC__ but is still a functioning clang. We
should be able to use our uint128_t and __asm__ code in it on Windows.
Change-Id: I67310ee68baa0c0c947b2441c265b019ef12af7e
Reviewed-on: https://boringssl-review.googlesource.com/22184
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>
I've left EVP_set_buggy_rsa_parser as a no-op stub for now, but it
shouldn't need to last very long. (Just waiting for a CL to land in a
consumer.)
Bug: chromium:735616
Change-Id: I6426588f84dd0803661a79c6636a0414f4e98855
Reviewed-on: https://boringssl-review.googlesource.com/22124
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Our assembly does not use the GOT to reference symbols, which means
references to visible symbols will often require a TEXTREL. This is
undesirable, so all assembly-referenced symbols should be hidden. CPU
capabilities are the only such symbols defined in C.
These symbols may be hidden by doing at least one of:
1. Build with -fvisibility=hidden
2. __attribute__((visibility("hidden"))) in C.
3. .extern + .hidden in some assembly file referencing the symbol.
We have lots of consumers and can't always rely on (1) happening. We
were doing (3) by way of d216b71f90 and
16e38b2b8f, but missed 32-bit x86 because
it doesn't cause a linker error.
Those two patches are not in upstream. Upstream instead does (3) by way
of x86cpuid.pl and friends, but we have none of these files.
Standardize on doing (2). This avoids accidentally getting TEXTRELs on
some 32-bit x86 build configurations. This also undoes
d216b71f90 and
16e38b2b8f. They are no now longer needed
and reduce the upstream diff.
Change-Id: Ib51c43fce6a7d8292533635e5d85d3c197a93644
Reviewed-on: https://boringssl-review.googlesource.com/22064
Commit-Queue: Matt Braithwaite <mab@google.com>
Reviewed-by: Matt Braithwaite <mab@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
sha1-altivec.c is not sensitive to OPENSSL_NO_ASM, so sha1.c needs to
disable the generic implementation accordingly.
Bug: 204
Change-Id: Ic655f8b76907f07da33afa863d1b24d62d42e23a
Reviewed-on: https://boringssl-review.googlesource.com/21064
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>
