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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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>
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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>
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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>
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crypto/{asn1,x509,x509v3,pem} were skipped as they are still OpenSSL
style.
Change-Id: I3cd9a60e1cb483a981aca325041f3fbce294247c
Reviewed-on: https://boringssl-review.googlesource.com/19504
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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It's confusing to have both mont and mont_data on EC_GROUP. The
documentation was also wrong.
Change-Id: I4e2e3169ed79307018212fba51d015bbbe5c4227
Reviewed-on: https://boringssl-review.googlesource.com/10348
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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Using ADX instructions requires relatively new assemblers. Conscrypt are
currently using Yasm 1.2.0. Revert these for the time being to unbreak
their build.
Change-Id: Iaba5761ccedcafaffb5ca79a8eaf7fa565583c32
Reviewed-on: https://boringssl-review.googlesource.com/19244
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
We can test these with Intel SDE now. The AVX2 code just affects the two
select functions while the ADX code is a separate implementation.
Haswell numbers:
Before:
Did 84630 ECDH P-256 operations in 10031494us (8436.4 ops/sec)
Did 206000 ECDSA P-256 signing operations in 10015055us (20569.0 ops/sec)
Did 77256 ECDSA P-256 verify operations in 10064556us (7676.0 ops/sec)
After:
Did 86112 ECDH P-256 operations in 10015008us (8598.3 ops/sec)
Did 211000 ECDSA P-256 signing operations in 10025104us (21047.2 ops/sec)
Did 79344 ECDSA P-256 verify operations in 10017076us (7920.9 ops/sec)
Skylake numbers:
Before:
Did 75684 ECDH P-256 operations in 10016019us (7556.3 ops/sec)
Did 185000 ECDSA P-256 signing operations in 10012090us (18477.7 ops/sec)
Did 72885 ECDSA P-256 verify operations in 10027154us (7268.8 ops/sec)
After:
Did 89598 ECDH P-256 operations in 10032162us (8931.1 ops/sec)
Did 203000 ECDSA P-256 signing operations in 10019739us (20260.0 ops/sec)
Did 87040 ECDSA P-256 verify operations in 10000441us (8703.6 ops/sec)
The code was slightly patched for delocate.go compatibility.
Change-Id: Ic44ced4eca65c656bbe07d5a7fee91ec6925eb59
Reviewed-on: https://boringssl-review.googlesource.com/18967
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
The AVX2 code has alignment requirements.
Change-Id: Ieb0774f7595a76eef0f3a15aabd63d056bbaa463
Reviewed-on: https://boringssl-review.googlesource.com/18966
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 isn't all of our pointer games by far, but for any code which
doesn't run on armv6, memcpy and pointer cast compile to the same code.
For code with does care about armv6 (do we care?), it'll need a bit more
work. armv6 makes memcpy into a function call.
Ironically, the one platform where C needs its alignment rules is the
one platform that makes it hard to honor C's alignment rules.
Change-Id: Ib9775aa4d9df9381995df8698bd11eb260aac58c
Reviewed-on: https://boringssl-review.googlesource.com/17707
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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This is the last of the non-GTest tests. We never did end up writing
example files or doc.go tooling for them. And probably examples should
be in C++ at this point.
Bug: 129
Change-Id: Icbc43c9639cfed7423df20df1cdcb8c35f23fc1a
Reviewed-on: https://boringssl-review.googlesource.com/17669
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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Change-Id: I8512c6bfb62f1a83afc8f763d681bf5db3b4ceae
Reviewed-on: https://boringssl-review.googlesource.com/17144
Commit-Queue: Adam Langley <alangley@gmail.com>
Reviewed-by: David Benjamin <davidben@google.com>
Drop some redundant instructions in reduction in ecp_nistz256_sqr_montx.
(Imported from upstream's 8fc063dcc9668589fd95533d25932396d60987f9.)
I believe this is a no-op for us as we do not currently enable the
ADX-based optimizations.
Change-Id: I34a5f5ffb965d59c67f6b9f0ca7937e49ba6e820
Reviewed-on: https://boringssl-review.googlesource.com/16884
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>
The only place it is used is EC_KEY_{dup,copy} and no one calls that
function on an EC_KEY with ex_data. This aligns with functions like
RSAPublicKey_dup which do not copy ex_data. The logic is also somewhat
subtle in the face of malloc errors (upstream's PR 3323).
In fact, we'd even changed the function pointer signature from upstream,
so BoringSSL-only code is needed to pass this pointer in anyway. (I
haven't switched it to CRYPTO_EX_unused because there are some callers
which pass in an implementation anyway.)
Note, in upstream, the dup hook is also used for SSL_SESSIONs when those
are duplicated (for TLS 1.2 ticket renewal or TLS 1.3 resumption). Our
interpretation is that callers should treat those SSL_SESSIONs
equivalently to newly-established ones. This avoids every consumer
providing a dup hook and simplifies the interface.
(I've gone ahead and removed the TODO(fork). I don't think we'll be able
to change this API. Maybe introduce a new one, but it may not be worth
it? Then again, this API is atrocious... I've never seen anyone use argl
and argp even.)
BUG=21
Change-Id: I6c9e9d5a02347cb229d4c084c1e85125bd741d2b
Reviewed-on: https://boringssl-review.googlesource.com/16344
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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This avoids depending the FIPS module on crypto/bytestring and moves
ECDSA_SIG_{new,free} into the module.
Change-Id: I7b45ef07f1140873a0da300501141b6ae272a5d9
Reviewed-on: https://boringssl-review.googlesource.com/15984
Reviewed-by: Adam Langley <agl@google.com>
The names in the P-224 code collided with the P-256 code and thus many
of the functions and constants in the P-224 code have been prefixed.
Change-Id: I6bcd304640c539d0483d129d5eaf1702894929a8
Reviewed-on: https://boringssl-review.googlesource.com/15847
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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