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Bob is stationed as a spy in Cyberia for a week and wants to prove everyday of this week that he is alive and has not been captured. He has chosen a secret random number, x, which he memorized and told to no one. But he did tell his boss the value y = h(h(h(h(h(h(h(x))))))), where h is a one-way function. Unfortunately, he knows that the Cyberian Intelligence Agency (CIA) was able to listen in on that message; hence, they also know the value of y. Explain how he can send a single message every day that proves he is still alive and has not been captured. Your solution should not allow anyone to replay any previous message from Bob as a (false) proof he is still alive.
Perceptions of product create its personality. Bottom, round the back. And even there they are ugly. Is that essential? Could they not, in some small degree, give pleasure?
Design a hashed file of words that could be used as a spell checker. What would you use as a hash function? Would your choice of a hash function depend on the language from which the words are chosen? Why should such a file not be stored as a sequent..
Why the SDLC is adequate to develop any system. Explain by giving at least two examples of systems, such as client-management systems and decision-support systems.
Using the register operation's, show the fetch-execute cycle. Show the fetch-execute cycle for an instruction that clears A (i.e., sets A to 0).
Draw the block diagram for the hardware that implements the following: y + xz: AR ß BR + CR where AR, BR and CR are n-bit registers and x, y, and z are control variables.
Write an UPDATE statement to change the phone number of employee with EmployeeNumber 11 to 360-287-8810. Run this SQL statement.
This code uses separate chaining ...implement it using double hashing. Implement a separate-chaining table in which each integer x is hashed twice using two different hash functions h1(x) and h2(x). This will perhaps produce two different location..
A website sells three products whose retail prices are as follows: product 1, $2.98; product 2 $4.50; and product 3, $9.98. Write an application that reads a series of pairs of numbers.
You have file containing sporting goods which are sold online. Each item record contains item id, item name, item description, item category, item price, and units in stock.
How you see you role in integrating software, hardware, and business management cpabilities? What challenges do you anticipate encounting as head of of the IT management effort at Magnum?
What changing conditions do you think have the most significant influence on way the health information is managed today? Why?
Part of a surgical admitting process orderlies are available to escort patients to the pre-surgery preparation area. Patients are not allowed to go by themselves as a matter of policy.
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