If a current private key is compromised, which of the following would ensure it cannot be used to decrypt ail historical data?

If a current private key is compromised, which of the following would ensure it cannot be used to decrypt ail historical data?
A . Perfect forward secrecy
B. Elliptic-curve cryptography
C. Key stretching
D. Homomorphic encryption

View Answer

Answer: A

Explanation:

Perfect forward secrecy would ensure that it cannot be used to decrypt all historical data. Perfect forward secrecy (PFS) is a security protocol that generates a unique session key for each session between two parties. This ensures that even if one session key is compromised, it cannot be used to decrypt other sessions.