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Computer Networks
Digital Signatures
Q
A signature function must be performed before the confidentiality function on a plain text in symmetric key digital signatures.
AA. True
BB. False
CC.
DD.
Correct Answer:
A. A. True
Explanation:
Confidentiality function involves receivers public key for encryption, and private key for decryption. The sender cannot deceive the receiver when the digital signature function is inside. Because decryption of the message cannot be done by the sender without receiver’s private key. And the sender cannot change the digital signature.
