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CAS-005 · Question #397

Which of the following enables the meaningful manipulation of encrypted data when the processor does not know the encryption key?

The correct answer is D. Homomorphic encryption. Homomorphic encryption allows for the manipulation and computation of encrypted data without needing to decrypt it, meaning the processor does not require access to the encryption key. This enables meaningful operations on encrypted data while maintaining confidentiality.

Submitted by priya_blr· Mar 6, 2026Security Engineering

Question

Which of the following enables the meaningful manipulation of encrypted data when the processor does not know the encryption key?

Options

  • ASimultaneous authentication of equals
  • BEnvelope encryption
  • CAuthenticated encryption with associated data
  • DHomomorphic encryption

How the community answered

(51 responses)
  • A
    4% (2)
  • B
    2% (1)
  • C
    2% (1)
  • D
    92% (47)

Explanation

Homomorphic encryption allows for the manipulation and computation of encrypted data without needing to decrypt it, meaning the processor does not require access to the encryption key. This enables meaningful operations on encrypted data while maintaining confidentiality.

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