Answer to Question #296118 in Computer Networks for kitty ku

Question

Briefly describe the following terms implemented in network security. (9 marks)

a Confidentiality (3)

b Authentication (3)

c Message Integrity (3)

Answer 1

1. Confidentiality in network security is the policy that information or data being transmitted should be a secret or private. It should be only known & accessed by the parties that are involved and not from the public.

2. Authentication means that only the users who have been verified and their identities confirmed to be who they are, will have access to resources in a system usually by being given session token for that period. E.g. in kerberos tickets are issued to authenticate users to resources.

3. Message integrity ensures that data being transmitted is at its most original/authentic form without being tampered/altered with during transmission, this is achieved through encryption.