An Attacker Captures the Encrypted Communication Between Two Parties for a Week

question 385

Multiple Choice

An attacker captures the encrypted communication between two parties for a week, but is unable to decrypt the messages. The attacker then compromises the session key during one exchange and successfully compromises a single message. The attacker plans to use this key to decrypt previously captured and future communications, but is unable to. This is because the encryption scheme in use adheres to:

• A) Asymmetric encryption
• B) Out-of-band key exchange
• C) Perfect forward secrecy
• D) Secure key escrow

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Definitions:

Founder Effect

A genetic phenomenon that occurs when a new colony is started by a few members of the original population, leading to reduced genetic variation.

Isolated

Being separated from others, either physically or socially, resulting in a lack of contact or interaction.

Demographic Bottleneck

A sharp reduction in the size of a population due to environmental events or human activities, leading to a decrease in genetic diversity and potential survival challenges for the population.