Why are secure channels required for CSOSS command and data?

• A. Prevent tampering and eavesdropping.
• B. Speed up data transmission.
• C. Replace encryption with plain text.
• D. Allow non-secure communications.

Answer: (A)

Secure channels are needed to protect the integrity and confidentiality of CSOSS command and data. They provide encryption and authentication so that anyone listening cannot read the content (eavesdropping) and cannot alter or spoof commands in transit (tampering and impersonation). By guaranteeing that messages come from an authorized source and remain unchanged, the ship’s systems can execute the correct actions safely and reliably. Protective measures like integrity checks and, where appropriate, replay protection, help ensure commands are authentic and timely.

The other choices don’t fit the purpose. Speeding up transmission isn’t the goal of a secure channel and security measures can add some processing overhead. Replacing encryption with plain text would defeat the security purpose, and allowing non-secure communications would defeat the very protection these channels provide.