@argv_minus_one@mastodon.sdf.org
Post #1387741
2026-04-12 17:56 UTC
@rsalz
The cost argument sounds like splitting hairs, to be honest.
RSA is far more costly than X25519—that's why we're using X25519 in the first place—and people were routinely running RSA on basic home PCs in the 1990s.
The phone in my pocket is a world-class supercomputer by 1990s standards. It can *easily* run ML-KEM+X25519. Let alone what a big beefy server can do.
Replies (2)
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@argv_minus_one@mastodon.sdf.org 2026-04-12 17:59
@rsalz As for satellites and telephone poles, I wasn't under the impression that those do encryption at all. But even if they do, since when was the nature of that encryption defined by the IETF TLS committee? They can use ML-KEM alone if they really want to, can they not? I don't see why they would need the IETF's permission.
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@rsalz@ioc.exchange 2026-04-12 18:37
@argv_minus_one Well, I don't presume to know all the operating environments. Are you sure you do? :)