Question
Q3: Suppose Bob wants to send an encrypted message to Alice. Which one of the followings...
Q3: Suppose Bob wants to send an encrypted message to Alice. Which one of the followings is correct? 1. Bob uses a shared secret key to encrypt the message. Alice uses Bob's public key to decrypt the encrypted message. 2. Bob uses Alice's private key to encrypt the message. Alice uses a shared secret key to decrypt the encrypted message. 3. Bob uses Alice's public key to encrypt the message digest. Alice uses Bob's public key to decrypt the encrypted digest. 4. Bob uses Alice's public key to encrypt the message digest. Alice uses Alice's public key to decrypt the encrypted digest. 5. Bob uses Alice's public key to encrypt the message digest. Alice uses Alice's private key to decrypt the encrypted digest.
Answers
5.Bob uses Alice's public key to encrypt the message digest.Alice uses Alice's private key to decrypt the encrypted digest.
Explanation:-
It is asymmetric cryptography in which two key is key one is public used for encryption and other is priavte which used for decryption.
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