Hash digest performance (Rust vs. Python)

[scottmcm]

This thread looks like a dup? The issue was solved in

Hash digest performance (Rust vs. Python)

Thank you! Now I am down to 0.17-0.19s, on par with Python's C-based lib (and learned quite a lot along the way). FWIW, someone on the duplicate post (now unlisted) suggested using ring instead of sha2. The code is indeed slightly faster – 0.15-0.16s – (and a bit simpler) with ring: let hasher = ring::digest::digest(&digest::SHA256, &bytes); println!("{}", hex::encode(hasher)); Thanks again to everyone answering to my post (and not berating me for my ignorance).