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Weekly CISSP Exam Questions

In cryptography, which of the following is NOT a type of key used?

A.  Symmetric Key
B.  Public Key
C.  Asymmetric Key
D.  Elliptic Key

Answer: D
Explanation:
In the context of cryptography, keys are categorized mainly as symmetric, asymmetric (public and private), but there is no "Elliptic Key."

  • Symmetric Key: One key for both encryption and decryption.
  • Public Key: Used in asymmetric encryption, publicly shared.
  • Asymmetric Key: Refers to the use of a pair of keys (public and private).
  • Elliptic Key: This is not a type of key. Elliptic Curve Cryptography (ECC) is a type of asymmetric cryptography that may use elliptic curves, but the keys are still asymmetric keys.

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