ExpertEasy1 markMultiple Choice
CPA · Question 26 · Area II: Security
Which of the following is a characteristic of a 'Symmetric' encryption algorithm?
Which of the following is a characteristic of a 'Symmetric' encryption algorithm?
Answer options:
A.
The same key is used for both encryption and decryption.
B.
A public key encrypts and a private key decrypts.
C.
It is generally slower than asymmetric encryption.
D.
It solves the key exchange problem inherently.
How to approach this question
Symmetric = Same. Asymmetric = Different.
Full Answer
A.The same key is used for both encryption and decryption.✓ Correct
Symmetric encryption uses a single shared secret key for both encryption and decryption (e.g., AES). Asymmetric encryption uses a pair of keys (Public/Private).
Common mistakes
Confusing Symmetric and Asymmetric properties.
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