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Removing expiry dates for TOFU

colecmac at protonmail.com colecmac at protonmail.com

Tue Jul 7 04:29:37 BST 2020

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Servers can still rotate key pairs without introducing the attack vector of

expiring the old ones [2].

I just don't understand the advantage to

key rotation + expiring the old keys vs. simple key rotation by itself.

Thanks for chiming in mozz!

How can a server rotate a keypair and prove it's still the same serveras before, that there's not an MITM attack going on? This is a genuine question,I haven't heard much about key rotation for TLS before. Could you explain orsend a link on how this works? I can't find much on it.

Thanks,makeworld