easy
Single Answer
0Melania and Leonidas would like to use an asymmetric cryptosystem to communicate with each other. They are located in different parts of the country but have exchanged encryption keys by using digital certificates signed by a mutually trusted certificate authority. When Leonidas receives the encrypted message from Melania, what key does he use to decrypt the message's plaintext content?
Answer Options
A
Melania's public key
B
Melania's private key
C
Leonidas's public key
D
Leonidas's private key
Correct Answer: D
Explanation
When Leonidas receives the message, he uses his own private key to decrypt it. Since he is the only one with his private key, he is the only one who should be able to decrypt it, thus preserving confidentiality.