ConceptsForward Secrecy

Forward Secrecy

A property of encrypted connections where compromising a server's long-term private key later does not let an attacker decrypt past sessions, because each session used a unique, ephemeral key that was never stored.

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Diffie-Hellman

The foundation Forward Secrecy builds on, worth understanding first.

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Diffie-HellmanStart here

A key-exchange method that lets two parties establish a shared secret over an insecure channel without ever transmitting the secret itself, foundational to setting up encrypted connections like TLS.

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