Earlier quoted context omitted.
Perhaps the meta-message here is that you absolutely have to design for cryptographic agility. You may not need to jump to the next best thing every 3 years, but as certain constructs are proven weak, you’ll need to start migrating systems and data off of them to modern equivalents.
> you absolutely have to design for cryptographic agility Yes, but for heaven’s sake don’t design something with “cipher suite negotiation” which has been an endless source of vulnerability over the years in SSL/TLS, IPsec, PGP… Instead one should advance the version of the entire protocol or file format when you need to upgrade the cryptography. Then you deprecate old versions as quickly as possible. WireGuard and a…
Yeah, very very important point