Which activities are included in cryptographic key management?

• A. Generating, distributing, storing, revoking cryptographic keys
• B. Setting ship logs
• C. Scheduling watch rotations
• D. Adjusting antenna polarization

Answer: (A)

Key management covers the lifecycle of cryptographic keys, from creation to retirement. It includes generating keys so there is material to use for encryption and decryption, distributing those keys only to authorized users or devices, storing them securely to prevent unauthorized access, and revoking or destroying them when they are no longer trusted or when personnel or access changes occur. Generating creates the material, distributing ensures only the right recipients have it, storing protects against theft or leakage, and revocation stops any use of compromised or outdated keys and prompts replacement. The other activities—setting ship logs, scheduling watch rotations, and adjusting antenna polarization—are administrative, personnel, or equipment configuration tasks and do not involve handling cryptographic material, so they are not part of key management.