Câu 359: CISA: Certified Information Systems Auditor

An organization uses public key infrastructure (PKI) to provide email security. Which of the following would be the MOST efficient method to determine whether email messages have been modified in transit?

1. A. The message is sent along with an encrypted hash of the message. — đáp án hiện tại
2. B. The message is sent using Transport Layer Security (TLS) protocol.
3. C. The message is encrypted using a symmetric algorithm.
4. D. The message is encrypted using the private key of the sender.