Message ________ means that the sender and the receiver expect privacya.Integrityb.Confidentialityc.Authenticationd.None of the above

To identify the correct answer, let’s break down the given options:

1. Privacy - This term typically involves keeping personal matters and relationships secret or hidden. While related to confidentiality, it does not specifically denote the mechanisms ensuring message protection.

2. Integrity - This term implies that the message has not been altered in any unauthorized manner during transmission. It does not necessarily cover the expectation of privacy.

3. Confidentiality - This term refers to the expectation that information is accessible only to those authorized to have access, thus ensuring that the sender and receiver can maintain privacy regarding the message content.

4. Authentication - This term indicates verifying the identities of the sender and receiver but does not focus on privacy or confidentiality.

Considering these definitions, the most appropriate answer is:

Final Answer

b. Confidentiality