Comment by ivanr

I wrote about OpenSSL's performance regressions in the December issue of Feisty Duck's cryptography newsletter [1]. In addition to Alex's and Paul's talk on Python cryptography, at the recent OpenSSL conference there have been several other talks worth watching:

- William Bellingrath, from Juniper Networks, benchmarked versions from 1.1.1 to 3.4.x https://www.youtube.com/watch?v=b01y5FDx-ao

- Tomáš Mráz wrote about how to get better performance, which, in turn, explains why it's bad by default: https://www.youtube.com/watch?v=Cv-43gJJFIs

- Martin Schmatz from IBM presented about their _very detailed_ study of post-quantum cipher suite performance https://www.youtube.com/watch?v=69gUVhOEaVM

Note: be careful with these recorded talks as they have a piercing violin sound at the beginning that's much louder than the rest. I've had to resort to muting the first couple of seconds of every talk.

[1] https://www.feistyduck.com/newsletter/issue_132_openssl_perf...