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crypto: re-add crypto.timingSafeEqual #8304

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crypto: re-add crypto.timingSafeEqual #8304

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627cbc0
Revert "Revert "crypto: add crypto.timingSafeEqual""
not-an-aardvark Aug 24, 2016
7e9869a
test: fix timing flake for crypto.timingSafeEqual
not-an-aardvark Aug 27, 2016
ca0e08a
squash: temporarily log detailed results if test fails
not-an-aardvark Aug 28, 2016
03ff774
squash: flip the order of the benchmarks
not-an-aardvark Aug 28, 2016
0c2077c
squash: change the order of the benchmarks every iteration
not-an-aardvark Aug 28, 2016
872e563
squash: split into two benchmark functions
not-an-aardvark Aug 28, 2016
e484b5f
squash: remove temporary logging
not-an-aardvark Aug 28, 2016
7d60f75
squash: add some eval()
not-an-aardvark Sep 1, 2016
f901e32
squash: never mind about eval()
not-an-aardvark Sep 1, 2016
5a36833
squash: use memory very inefficiently
not-an-aardvark Sep 1, 2016
9a0bba2
squash: update t-threshold for 1/10000 failure rate
not-an-aardvark Sep 2, 2016
bcee4a8
squash: allocate everything before benchmarking
not-an-aardvark Sep 2, 2016
240e8ac
squash: change the order of the benchmarks every iteration (take 2)
not-an-aardvark Sep 2, 2016
d810e06
squash: alternate the allocation order too
not-an-aardvark Sep 2, 2016
5a6f19e
squash: add note to docs about ensuring timing-safety
not-an-aardvark Sep 3, 2016
3c5ba3c
squash: add linebreaks in docs
not-an-aardvark Sep 3, 2016
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squash: change the order of the benchmarks every iteration
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@not-an-aardvark
not-an-aardvark committed Aug 28, 2016
commit 0c2077c1496cfb41a328137d072944aab8e623d4
16 changes: 10 additions & 6 deletions test/sequential/test-crypto-timing-safe-equal.js
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Expand Up @@ -57,13 +57,17 @@ function getTValue(compareFunc) {
const rawUnequalBenches = Array(numTrials);

for (let i = 0; i < numTrials; i++) {
// FIXME: The order of these benchmarks is swapped.
// Flip them back before merging.

// Second benchmark: comparing two unequal buffers
rawUnequalBenches[i] = runBenchmark(compareFunc, bufferB, bufferC, false);
// First benchmark: comparing two equal buffers
rawEqualBenches[i] = runBenchmark(compareFunc, bufferA1, bufferA2, true);
if (i % 2) {
// First benchmark: comparing two equal buffers
rawEqualBenches[i] = runBenchmark(compareFunc, bufferA1, bufferA2, true);
// Second benchmark: comparing two unequal buffers
rawUnequalBenches[i] = runBenchmark(compareFunc, bufferB, bufferC, false);
} else {
// Flip the order of the benchmarks every other iteration
rawUnequalBenches[i] = runBenchmark(compareFunc, bufferB, bufferC, false);
rawEqualBenches[i] = runBenchmark(compareFunc, bufferA1, bufferA2, true);
}
}

const equalBenches = filterOutliers(rawEqualBenches);
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