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crypto/internal/fips140test: collect 300M entropy samples for ESV

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Change-Id: I6a6a69649df8f576df62e22c16db7813cde75224
Reviewed-on: https://go-review.googlesource.com/c/go/+/715401
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Daniel McCarney <daniel@binaryparadox.net>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
Filippo Valsorda
2025-10-28 11:44:57 +01:00
committed by Gopher Robot
parent d5953185d5
commit 3da0356685
1 changed files with 8 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
src/crypto/internal/fips140test/entropy_test.go
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@@ -34,12 +34,17 @@ func TestEntropySamples(t *testing.T) {
cryptotest.MustSupportFIPS140(t)
now := time.Now().UTC()
var seqSamples [1_000_000]uint8
samplesOrTryAgain(t, seqSamples[:])
seqSampleCount := 1_000_000
if *flagEntropySamples != "" {
// The lab requested 300 million samples for a new heuristic procedure.
seqSampleCount = 300_000_000
}
seqSamples := make([]uint8, seqSampleCount)
samplesOrTryAgain(t, seqSamples)
seqSamplesName := fmt.Sprintf("entropy_samples_sequential_%s_%s_%s_%s_%s.bin", entropy.Version(),
runtime.GOOS, runtime.GOARCH, *flagEntropySamples, now.Format("20060102T150405Z"))
if *flagEntropySamples != "" {
if err := os.WriteFile(seqSamplesName, seqSamples[:], 0644); err != nil {
if err := os.WriteFile(seqSamplesName, seqSamples, 0644); err != nil {
t.Fatalf("failed to write samples to %q: %v", seqSamplesName, err)
}
t.Logf("wrote %s", seqSamplesName)