CompTIA CASP+ (CAS-004) — Question 162

Which of the following BEST describes a common use case for homomorphic encryption?

Answer options

• A. Processing data on a server after decrypting in order to prevent unauthorized access in transit
• B. Maintaining the confidentiality of data both at rest and in transit to and from a CSP for processing
• C. Transmitting confidential data to a CSP for processing on a large number of resources without revealing information
• D. Storing proprietary data across multiple nodes in a private cloud to prevent access by unauthenticated users

Correct answer: C

Explanation

The correct answer is C, as homomorphic encryption allows for processing of encrypted data without revealing the underlying sensitive information. Option A describes traditional encryption methods that do not maintain confidentiality during processing, while B focuses on data at rest and in transit without the unique capabilities of homomorphic encryption. Option D addresses data storage security rather than the processing capability that homomorphic encryption provides.