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?
A.
The message is sent along with an encrypted hash of the message.
B.
The message is sent using Transport Layer Security (TLS) protocol.
C.
The message is encrypted using a symmetric algorithm.
D.
The message is encrypted using the private key of the sender.
This method involves creating a digital signature by encrypting a hash of the message with the sender's private key. The recipient can then use the sender's public key to decrypt the signature and compare it with a newly computed hash of the received message. If the two hashes match, it indicates that the message has not been modified in transit. Digital signatures provide integrity and authenticity verification for email messages.
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4 months agoswmasinde
1 year ago