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Discuss how the asymmetric encryption algorithm can be used to achieve the following goals.
a. authentication: the receiver knows that only the sender could have generated the message.
b. secrecy: only the receiver can decrypt the message.
c. authentication and secrecy: only the receiver can decrypt the message, and the receiver knows that only the sender cosssuld have generated the message.

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Discuss how the asymmetric encryption algorithm can be used to achieve the following goals.
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