Glossary

Plain-English definitions of post-quantum terminology.

Crypto-agilityThe ability to change cryptographic algorithms without re-architecting, and why it matters more than any single algorithm choice.Forward secrecyWhy a stolen server key should not decrypt past sessions, and why static RSA key exchange is the worst case for harvest-now-decrypt-later.Hybrid key exchangeRunning a classical and a post-quantum key exchange together, so the session stays secure if either one holds.KEMA KEM establishes a shared secret by encapsulating it to a public key, rather than combining public values as Diffie-Hellman does.