4183. [cleanup] Use timing-safe memory comparisons in cryptographic
code. Also, the timing-safe comparison functions have
been renamed to avoid possible confusion with
memcmp(). [RT #40148]
(cherry picked from commit 420a43c8d8)
3611. [bug] Improved resistance to a theoretical authentication
attack based on differential timing. [RT #33939]
(cherry picked from commit 5b7abbef51)