2e8973aeea
Adds ACVP test coverage for the SP 800-108r1 KDF feedback mode algorithm based on the NIST spec: https://pages.nist.gov/ACVP/draft-celi-acvp-kbkdf.html The HKDF-based implementation in our FIPS module fixes some parameters, requiring tailoring of the advertised capability to match. Notably: * We only support fixedDataOrder "after fixed data" * We only support a counter length of 8 bits * We only support empty IVs No acvp_test.config.json update accompanies this support because the ACVP tests for this algorithm aren't amenable to fixed data testing. Updates #69642 Change-Id: I729e899377a64d2b613d6435241aebabeef93bca Reviewed-on: https://go-review.googlesource.com/c/go/+/640016 Reviewed-by: Filippo Valsorda <filippo@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Roland Shoemaker <roland@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Auto-Submit: Filippo Valsorda <filippo@golang.org>
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