Which of the following statements about symmetric key cryptography is not true?
A. Symmetric key cryptography uses one shared key.
B. Symmetric algorithms can provide confidentiality.
C. Symmetric algorithms can provide nonrepudiation and authenticity.
D. Symmetric key cryptography uses a single secret key.
Answer: C
Explanation: Symmetric algorithms cannot provide nonrepudiation and authenticity because the keys are shared.
Computer Science & Information Technology
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