Seonglae ChoPFS (Perfect Forward Secrecy)
만약 private key 노출되면 과거에 녹음된 encrypted 된 메시지 해독 가능한가
DH can give you forward secrecy much more efficiently than RSA. (Faster key generation)
Forward Secrecy
- A property of a key exchange protocol
- Forward secrecy prevents key recording attack
- Forward secrecy that a long-term secret compromise does not affect the security of past session keys.