2
77%
master: 77%

Ran 29 Oct 2020 08:51PM UTC

Files 452

Run time 1min

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Committed 29 Oct 2020 07:18PM UTC coverage: 77.387% (-0.03%) from 77.414%

Job # COVERITY_SCAN_TOKEN=[secure] CONFIG="--with-openssl --prefix=/usr --with-tpm2 --enable-test-coverage" TARGET="install" NPROC="nproc"

Build Type

push

travis-ci

Committed by

stefanberger

Commit Message

tpm2: EcSM2: Enforce that the random bnK has no leading zeros

Make sure that the value of bnK is not short so that the subsequent
BnEccModMult() runs in constant time. We take the same approach as with
the modifications to BnEccGenerateKeyPair() where we request bnK to have
all bytes set (no leading zeros that will be cut away) in case the order
of the curve is as byte boundary. In the other cases we add the order
to bnK, which creates bnK1, which we then use for BnEccModMult's scalar
parameter.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Suggested-by: Charanjit Jutla <csjutla@us.ibm.com>

Run Details

28908 of 37355 relevant lines covered (77.39%)

89679.97 hits per line

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