What should be done to manage key redundancy effectively?

• A. Order multiple copies with spaced expirations
• B. Limit key orders to one per department
• C. Use only one key for all partitions
• D. Rotate keys daily among users

Answer: (A)

Managing key redundancy effectively requires a strategic approach that allows for flexibility and availability of cryptographic keys while minimizing the risk of loss or compromise. Ordering multiple copies with spaced expirations ensures that there are sufficient keys available without overwhelming the system with too many active keys at once. This method allows for proactive management of key lifecycles, where keys can be decommissioned and replaced without disrupting operations.

By having keys with spaced expirations, the organization can prevent a scenario where a single point of failure—if a key is lost or compromised—would impact all secure communications. This staggered approach to expiration also facilitates regular updates and renewals of cryptographic keys, helping to maintain security integrity over time.