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This commit includes changes required for supporting a hardware based montgomery modexp (r = a ^ e mod N). The function bn_is_bit_set() was previously static, and now added to internal.h, as this function is used by the hardware implementation. Add function declarations for new functions related to the hardware implementation to chip/g/dcrypto/internal.h BRANCH=none CQ-DEPEND=CL:*260618,CL:*260895 BUG=chrome-os-partner:43025,chrome-os-partner:47524 TEST=all tests in test/tpm_test/tpmtest.py pass Change-Id: I5fe4a6692678b64f27659f42a08d200b6fe6f0cc Signed-off-by: nagendra modadugu <ngm@google.com> Reviewed-on: https://chromium-review.googlesource.com/347462 Commit-Ready: Nagendra Modadugu <ngm@google.com> Tested-by: Nagendra Modadugu <ngm@google.com> Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit For instructions on building from source, refer to http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly