I'd have to assume the issue there is really speed. Edit: @alex made a much better comment here: https://github.com/pyca/cryptography/issues/5771#issuecomment

I'd have to assume the issue there is really speed. Edit: @alex made a much better comment here: https://github.com/pyca/cryptography/issues/5771#issuecomment-775549504 https://github.com/pyca/cryptography/issues/5771#issuecommen... One point that I didn't think of, but makes a ton of sense: >There's no way to implement constant-time code in pure Python securely