Some consumer stumbled upon EC_POINT_{add,dbl} being faster with a
"custom" P-224 curve than the built-in one and made "custom" clones to
work around this. Before the EC_FELEM refactor, EC_GFp_nistp224_method
used BN_mod_mul for all reductions in fallback point arithmetic (we
primarily support the multiplication functions and keep the low-level
point arithmetic for legacy reasons) which took quite a performance hit.
EC_FELEM fixed this, but standalone felem_{mul,sqr} calls out of
nistp224 perform a lot of reductions, rather than batching them up as
that implementation is intended. So it is still slightly faster to use a
"custom" curve.
Custom curves are the last thing we want to encourage, so just route the
tuned implementations out of EC_METHOD to close this gap. Now the
built-in implementation is always solidly faster than (or identical to)
the custom clone. This also reduces the number of places where we mix
up tuned vs. generic implementation, which gets us closer to making
EC_POINT's representation EC_METHOD-specific.
Change-Id: I843e1101a6208eaabb56d29d342e886e523c78b4
Reviewed-on: https://boringssl-review.googlesource.com/c/32848
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>
This commit improves the performance of ECDSA signature verification
(over NIST P-256 curve) for x86 platforms. The speedup is by a factor of 1.15x.
It does so by:
1) Leveraging the fact that the verification does not need
to run in constant time. To this end, we implemented:
a) the function ecp_nistz256_points_mul_public in a similar way to
the current ecp_nistz256_points_mul function by removing its constant
time features.
b) the Binary Extended Euclidean Algorithm (BEEU) in x86 assembly to
replace the current modular inverse function used for the inversion.
2) The last step in the ECDSA_verify function compares the (x) affine
coordinate with the signature (r) value. Converting x from the Jacobian's
representation to the affine coordinate requires to perform one inversions
(x_affine = x * z^(-2)). We save this inversion and speed up the computations
by instead bringing r to x (r_jacobian = r*z^2) which is faster.
The measured results are:
Before (on a Kaby Lake desktop with gcc-5):
Did 26000 ECDSA P-224 signing operations in 1002372us (25938.5 ops/sec)
Did 11000 ECDSA P-224 verify operations in 1043821us (10538.2 ops/sec)
Did 55000 ECDSA P-256 signing operations in 1017560us (54050.9 ops/sec)
Did 17000 ECDSA P-256 verify operations in 1051280us (16170.8 ops/sec)
After (on a Kaby Lake desktop with gcc-5):
Did 27000 ECDSA P-224 signing operations in 1011287us (26698.7 ops/sec)
Did 11640 ECDSA P-224 verify operations in 1076698us (10810.8 ops/sec)
Did 55000 ECDSA P-256 signing operations in 1016880us (54087.0 ops/sec)
Did 20000 ECDSA P-256 verify operations in 1038736us (19254.2 ops/sec)
Before (on a Skylake server platform with gcc-5):
Did 25000 ECDSA P-224 signing operations in 1021651us (24470.2 ops/sec)
Did 10373 ECDSA P-224 verify operations in 1046563us (9911.5 ops/sec)
Did 50000 ECDSA P-256 signing operations in 1002774us (49861.7 ops/sec)
Did 15000 ECDSA P-256 verify operations in 1006471us (14903.6 ops/sec)
After (on a Skylake server platform with gcc-5):
Did 25000 ECDSA P-224 signing operations in 1020958us (24486.8 ops/sec)
Did 10373 ECDSA P-224 verify operations in 1046359us (9913.4 ops/sec)
Did 50000 ECDSA P-256 signing operations in 1003996us (49801.0 ops/sec)
Did 18000 ECDSA P-256 verify operations in 1021604us (17619.4 ops/sec)
Developers and authors:
***************************************************************************
Nir Drucker (1,2), Shay Gueron (1,2)
(1) Amazon Web Services Inc.
(2) University of Haifa, Israel
***************************************************************************
Change-Id: Idd42a7bc40626bce974ea000b61fdb5bad33851c
Reviewed-on: https://boringssl-review.googlesource.com/c/31304
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>
Reviewed-by: Adam Langley <agl@google.com>
- In base.h, if BORINGSSL_PREFIX is defined, include
boringssl_prefix_symbols.h
- In all .S files, if BORINGSSL_PREFIX is defined, include
boringssl_prefix_symbols_asm.h
- In base.h, BSSL_NAMESPACE_BEGIN and BSSL_NAMESPACE_END are
defined with appropriate values depending on whether
BORINGSSL_PREFIX is defined; these macros are used in place
of 'namespace bssl {' and '}'
- Add util/make_prefix_headers.go, which takes a list of symbols
and auto-generates the header files mentioned above
- In CMakeLists.txt, if BORINGSSL_PREFIX and BORINGSSL_PREFIX_SYMBOLS
are defined, run util/make_prefix_headers.go to generate header
files
- In various CMakeLists.txt files, add "global_target" that all
targets depend on to give us a place to hook logic that must run
before all other targets (in particular, the header file generation
logic)
- Document this in BUILDING.md, including the fact that it is
the caller's responsibility to provide the symbol list and keep it
up to date
- Note that this scheme has not been tested on Windows, and likely
does not work on it; Windows support will need to be added in a
future commit
Change-Id: If66a7157f46b5b66230ef91e15826b910cf979a2
Reviewed-on: https://boringssl-review.googlesource.com/31364
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
Change-Id: I45866c3a4aa98ebac51d4e554a22eb5add45002f
Reviewed-on: https://boringssl-review.googlesource.com/31404
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>
Along the way, split up the EVPTest Wycheproof tests into separate tests (they
shard better when running in parallel).
Change-Id: I5ee919f7ec7c35a7f2e0cc2af4142991a808a9db
Reviewed-on: https://boringssl-review.googlesource.com/30846
Reviewed-by: Adam Langley <agl@google.com>
Also remove some transition step for a recent format change. Together, this
removes the curve hacks in the converter, which can now be purely syntactic.
The RSA ones are still a bit all over the place in terms of sharded vs
combined, so leaving that alone for now.
Change-Id: I721d6b0de388a53a39543725e366dc5b52e83561
Reviewed-on: https://boringssl-review.googlesource.com/30845
Reviewed-by: Adam Langley <agl@google.com>
This only updates the repository. We'll catch up with the new tests in a
subsequent commit.
Change-Id: I074a041479159ce1141af3241e7158599b648365
Reviewed-on: https://boringssl-review.googlesource.com/30844
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
They've since added new files that split up ECDH and RSA. The former especially
could be useful. A later commit will switch to those. Along the way, fix the
aes_cmac_test.json entry in the convert_wycheproof.go which got lost at some
point.
Change-Id: I9c4a2e5fc5f3e0935482f583c5466c1b64fe325e
Reviewed-on: https://boringssl-review.googlesource.com/29686
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 file is not part of the Wycheproof project and consumers of
BoringSSL who wish to provide Wycheproof themselves (and not have
third_party/wycheproof_testvectors) need it in another location.
Change-Id: I730fe294f46a9aac77b858a91a03ee64fb8ea579
Reviewed-on: https://boringssl-review.googlesource.com/28704
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Change-Id: Ib12f41dec023e20dfd1182513bf11571950d7c85
Reviewed-on: https://boringssl-review.googlesource.com/28245
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>
Make it clear this is not a pristine full copy of all of Wycheproof as a
library.
Change-Id: I1aa5253a1d7c696e69b2e8d7897924f15303d9ac
Reviewed-on: https://boringssl-review.googlesource.com/28188
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Martin Kreichgauer <martinkr@google.com>
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The bug, courtesy of Wycheproof, is that AES key wrap requires the input
be at least two blocks, not one. This also matches the OpenSSL behavior
of those two APIs.
Update-Note: AES_wrap_key with in_len = 8 and AES_unwrap_key with
in_len = 16 will no longer work.
Change-Id: I5fc63ebc16920c2f9fd488afe8c544e0647d7507
Reviewed-on: https://boringssl-review.googlesource.com/27925
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>
Per Brian, x25519_ge_frombytes_vartime does not match the usual
BoringSSL return value convention, and we're slightly inconsistent about
whether to mask the last byte with 63 or 127. (It then gets ANDed with
64, so it doesn't matter which.) Use 127 to align with the curve25519
RFC. Finally, when we invert the transformation, use the same constants
inverted so that they're parallel.
Bug: 243, 244
Change-Id: I0e3aca0433ead210446c58d86b2f57526bde1eac
Reviewed-on: https://boringssl-review.googlesource.com/27984
Reviewed-by: Adam Langley <agl@google.com>
Stop interleaving the GFp_x25519_* wrappers with the code from upstream
so that merges are easier and so we don't have to reorganize them when
the upstream code is reorganized.
Give each function in the interface a "GFp_x25519_" prefix, instead of
just "GFp_". (BoringSSL uses "x25519" isntead of "curve25519" even when
the function is useful/used for more than just x25519 key agreement.)
Move the function prototypes for these functions to fiat/internal.h to
help with merging BoringSSL changes.
Unfortunately, this driver suffers a lot from Wycheproof's Java
heritgate, but so it goes. Their test formats bake in a lot of Java API
mistakes.
Change-Id: I3299e85efb58e99e4fa34841709c3bea6518968d
Reviewed-on: https://boringssl-review.googlesource.com/27865
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>
This is to make it easier to correlate the two.
Change-Id: I62aa381499d67ae279bbe86eebeb9a5bc9ef5266
Reviewed-on: https://boringssl-review.googlesource.com/27864
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>
DSA is deprecated and will ultimately be removed but, in the
meantime, it still ought to be tested.
Change-Id: I75af25430b8937a43b11dced1543a98f7a6fbbd3
Reviewed-on: https://boringssl-review.googlesource.com/27825
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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This works with basically no modifications.
Change-Id: I92f4d90f3c0ec8170d532cf7872754fadb36644d
Reviewed-on: https://boringssl-review.googlesource.com/27824
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
EC_POINT is split into the existing public EC_POINT (where the caller is
sanity-checked about group mismatches) and the low-level EC_RAW_POINT
(which, like EC_FELEM and EC_SCALAR, assume that is your problem and is
a plain old struct). Having both EC_POINT and EC_RAW_POINT is a little
silly, but we're going to want different type signatures for functions
which return void anyway (my plan is to lift a non-BIGNUM
get_affine_coordinates up through the ECDSA and ECDH code), so I think
it's fine.
This wasn't strictly necessary, but wnaf.c is a lot tidier now. Perf is
a wash; once we get up to this layer, it's only 8 entries in the table
so not particularly interesting.
Bug: 239
Change-Id: I8ace749393d359f42649a5bb0734597bb7c07a2e
Reviewed-on: https://boringssl-review.googlesource.com/27706
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>
Replace them with asserts and better justify why each of the internal
cases are not reachable. Also change the loop to count up to bits+1 so
it is obvious there is no memory error. (The previous loop shape made
more sense when ec_compute_wNAF would return a variable length
schedule.)
Change-Id: I9c7df6abac4290b7a3e545e3d4aa1462108e239e
Reviewed-on: https://boringssl-review.googlesource.com/27705
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>
Along the way, add some utility functions for getting common things
(curves, hashes, etc.) in the names Wycheproof uses.
Change-Id: I09c11ea2970cf2c8a11a8c2a861d85396efda125
Reviewed-on: https://boringssl-review.googlesource.com/27786
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>
