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For hash functions it is crucial to have a sufficiently large number of output bits, with, e.g., 160 bits, in order to thwart attacks based on the birthday paradox. Why are much shorter output lengths of, e.g., 80 bits, sufficient for MACs? For your answer, assume a message x that is sent in clear together with its MAC over the channel: (x,MACk(x)). Exactly clarify what Oscar has to do to attack this system.
The billing department at the bank has asked for your team's help. They want to develop a program that will determine the monthly charges for checking accounts.
Write a function called "problem3" that accept ONE input. This single input will be formatted as follows: Row 1: X coordinates Row 2: Y coordinates Your function should then shift the shape
You need to convert the data to a table. You will manage the large worksheet, prepare the worksheet for printing, sort and filter the table, include calculations, and format the table -
The design features for your home office network should include wired and wireless connectivity, the applications and operating systems use on the network, and shared network resources (files, printers). Include as much information as you can in your..
How do these issues relate to the strategic choices that the firm has made? Does the analogy to a manufacturing firm seem appropriate?
Are there any instances when a firm would pass up such software and decide to prepare custom code? If so, what are they?Discuss the pros and cons of buying software vs. creating custom software.
a. How many bits are needed for the opcode? b. How many bits are left for the address part of the instruction? c. What is the maximum allowable size for memory?
ABC was launched as a retail dive shop with 10 employees in Turkey by Mr Beans. As a small business owner, Beans wanted to offer the e-commerce capabilities of a large firm using a small company's budget. Within a year, he had installed an Ethernet L..
An executive once commented that his company was having trouble managing projects, not because of a lack of tools and techniques, but because they (employees) did not know how to manage what they had. How does this relate to project management?
A got is tied on a rectangular plot at one corner. The length of the rope is 21 m and the plot measures 25 by 30 m. What area is the goat unable to graze on?
Liquid sodium is to be heated from 500 K to 600 K by passing it at a flow rate of 5.0 kg/s through a 5-cm-ID tube whose surface is maintained at 620 K. What length of tube is required?
A key issue in such systems is the degree of variability in the size of the extents. What are the advantages and disadvantages of the following schemes?
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