Pfleeger, a Hash Function Is Used for Term Paper

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Pfleeger, a hash function is used for the provision of message integrity checks and digital signatures. It is a transformation that takes an input and returns a fixed-size string. The basic requirements for a cryptographic hash function are that its input can be of any length but its output has a fixed length. It is said to be a one-way function if it is simply hard to invert. If, given a message, it is computationally infeasible to find a message then it is said to be a weakly collision-free hash function. A strongly collision-free hash function is one for which it is computationally infeasible to find any two messages.

2.The use of SSL ensures that SSL servers and clients can be configured to use only specific cryptographic algorithms.

3.Pfleeger's method for costing requires calculation of expenses and costs associated with delivering a cost effective security system based on risk analysis of potential risks from hackers posed to any particular system.

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Computer information security is increasingly being seen as more than simply keeping intruders out and protecting the integrity of data.

5.Your textbook talks about different types of attacks on networks. List three commonly used attacks (not a guess, but as reported in the literature), and describe the operation of each type.

Remember this is a two-part question, first identify the attacks, and then describe how each works.

A denial-of-service attack is a type of attack that is designed to bring the network to its knees by flooding it with useless information. In this type of attack, for example, a smurf attacker sends PING requests to an Internet address, where it is swamped with replies to echo requests. Denial of service attacks do not directly impinge upon the hardware of a system, unlike viruses, which impinge upon a system's programs….....

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