22 Jul Practice Test Question- Cryptographic Keys
Preparing for your next security certification exam? After trying your hand at this practice test question, join the FREE CertMike Study Group for the CISSP, Security+, CySA+, PenTest+, CISM+ or SSCP certification to receive new questions each week. You’ll also receive free access to my customized study strategies. Alice and Bob 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 Bob receives an encrypted message from Alice, what key does he use to decrypt the plaintext message’s contents? A. Alice’s public Key B. Alice’s private key C. Bob’s public key D. Bob’s private key Correct Answer: D The recipient of a message that was encrypted us-ing asymmetric cryptography always decrypts that message using their own private key. The sender of the message would have previously encrypted it using the recipient’s public key. The sender’s public and private keys are not used in this process. Interested in more practice test questions? Get a copy of my official CertMike Practice Test books for the Security+ exam, CISSP exam, SSCP exam, or CySA+ exam and practice with hundreds of questions designed just like the real test! ...