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A message* that has been encrypted by the sender’s private key and again by the receiver’s public

A message* that has been encrypted by the sender’s private key and again by the receiver’s
public key achieves:

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A.
authentication and authorization.

B.
confidentiality and integrity.

C.
confidentiality and nonrepudiation.

D.
authentication and nonrepudiation.

Explanation:

Encryption by the private key of the sender will guarantee authentication and nonrepudiation.
Encryption by the public key of the receiver will guarantee confidentiality.


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