Security Requirements and Attacks
Explain the term Security Requirements and Attacks in network security.
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Security Requirements: There are five principle requirements that are addressed by network security:
Security Attacks: Two major categories of security attacks are: 1) passive and 2) active attacks.
Passive attacks involve exposure of a message to a non-authorized party, such as in eavesdropping, but do not involve any alteration of the message content. These attacks are very difficult to detect, and they are best prevented by using various types of message encryption.
Active attacks involve some data modification and can be grouped in four categories:
Write out any three hash algorithm.
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