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Computer Networks
Public Key Cryptography
Q
Which of the following is not a property of public key cryptography?
AA. Uses different keys
BB. Every user has a unique private key
CC. Public key can be same for number of users
DD. Cannot deduce private key from public key
Correct Answer:
C. C. Public key can be same for number of users
Explanation:
There will be a unique public key for every user, who publishes it. Public key prevents spoofing, by acting as the receiver. Sender uses the public key of the receiver to encrypt the message and the receiver will decrypt the message with his secret key.
