ExpertEasy1 markMultiple Choice
CPA · Question 21 · Area II: Security
Which encryption method uses a pair of keys: a public key for encryption and a private key for decryption?
Which encryption method uses a pair of keys: a public key for encryption and a private key for decryption?
Answer options:
A.
Symmetric encryption
B.
Asymmetric encryption
C.
Hashing
D.
Tokenization
How to approach this question
Recall the definition of Public Key Infrastructure (PKI) or Asymmetric cryptography.
Full Answer
B.Asymmetric encryption✓ Correct
Asymmetric encryption
Asymmetric encryption (like RSA) uses a public key to encrypt and a private key to decrypt.
Common mistakes
Confusing Symmetric (Same key) with Asymmetric.
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