Caddy 2.11's default post-quantum key exchange sends six times more handshake bytes

DEV Community·12 points·alexgeorgiev17·12 days ago·dev.to

I measured Caddy's new default X25519MLKEM768 key exchange against classical X25519: ClientHello grows from 318 to 1494 bytes, ServerHello from 122 to 1210, but the raw crypto costs under 65 microseconds and old clients still connect fine.

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#caddy #key #bytes #exchange #default #key exchange #quantum #11s

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