tree f07b8797f0eef79c8ce67014ac192c93a0d0f543
parent d8e2e8347b4a7514d310e6c629aa3a71d9d5f857
author Gilles Peskine <Gilles.Peskine@arm.com> 1639168510 +0100
committer Gilles Peskine <Gilles.Peskine@arm.com> 1639231326 +0100

Catch failures of md_hmac operations

Declare mbedtls_md functions as MBEDTLS_CHECK_RETURN_TYPICAL, meaning that
their return values should be checked.

Do check the return values in our code. We were already doing that
everywhere for hash calculations, but not for HMAC calculations.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>