Fix a security issue CVE-2020-36242 where certain sequences of
``update()`` calls when symmetrically encrypting very large
payloads (>2GB) could result in an integer overflow, leading to
buffer overflows.
Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Trevor Gamblin <trevor.gamblin@windriver.com>
