[issue40791] hmac.compare_digest could try harder to be constant-time.

[Gregory P. Smith]

Gregory P. Smith <greg at krypto.org> added the comment:

Christian - Devin could likely use some help with the build/ifdef plumbing required for (2) to use CRYPTO_memcmp from Modules/_operator.c when OpenSSL is available.

----------
assignee:  -> christian.heimes

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40791>
_______________________________________