2026.04.11 02:42:46 (Mastodon 116383768045293420, Twitter 2042795476550893773) from Daniel J. Bernstein:
Some energy numbers for breaking a post-quantum proposal, SIKEp751: https://eprint.iacr.org/2023/376 reports 11 seconds to break one key on a mass-market Intel Xeon Gold 6248R. That's a 200-watt CPU; maybe 100 watts more for MB, RAM, PS inefficiency; so about $0.0001 electricity per key.