Message Integrity: Data integrity means that the data must arrive at the receiver exactly as it was sent.This aspect of confidentiality is commonly used to achieve secure communication. Therefore, there is a requirement to encrypt the message so that the message cannot be intercepted.

Only the sender and receiver should be able to understand the transmitted message as eavesdroppers can intercept the message. The transmitted message should be sent only to the intended receiver while the message should be opaque for other users. Aspects of Network Security:įollowing are the desirable properties to achieve secure communication: A network administrator assigns the user ID and password to the authorized person. Network Administrator controls access to the data and software on the network. For example, a home office requires basic network security while large businesses require high maintenance to prevent the network from malicious attacks. Computer network security consists of measures taken by business or some organizations to monitor and prevent unauthorized access from the outside attackers.ĭifferent approaches to computer network security management have different requirements depending on the size of the computer network.