BLAKE3

Trying out the BLAKE3 cryptographic hash function (HN discussion).

Let's first install it via cargo.

cargo install b3sum

Then we're generating a 1GB file.

head -c 1000000000 /dev/urandom > /tmp/bigfile

Hashing it with SHA-2 takes ~7 seconds.

time shasum -a 256 /tmp/bigfile

With blake3 only ~0.8s.

time b3sum /tmp/bigfile