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You are working for a cryptography department, where one of your jobs is to decipher intercepted messages that have been encrypted using a book cipher. The messages are sent by different people, each of whom writes their plaintext in a different language to confuse any attempt to decipher the messages. But this has made them a little too confident, and you have discovered a very useful secret: unaware that their messages can be cracked, each sender tends to use the same book passage over and over; all that changes is where in that passage they start the encryption. Being very lazy, they always start the encryption within 20 letters of the start of the passage. So for the purposes of this task, the 'key' is simply the starting position in the book text, and is a number from 0 to 20. Your job now is to write a computer program (a real executable program, not a spreadsheet) that can be used to decrypt these intercepted messages. The program will be required to read the ciphertext from a file and to display the plaintext on the screen, along with the key that was used to encrypt it. You will be asked to demonstrate your program to the tutor in the lab class on the due date. This is so that you will be there to run the program and make any decisions that need making. You will be given several ciphertexts to practice on, but in the demonstration you will be asked to demonstrate your program on files you have not seen. You may write your program in whatever programming language you wish.
Short Arrays: Array = randi(10,1,randi(6,1,1)+4)-5 This command will generate an array which you should be able to evaluate by hand (and also have your code evaluate for te
a) Write a program i_language(Sentence,NewSentence) that translates a sentence to the i-language. In this language all vowels are changed to i and all other characters are kep
Real Distinct and 1 Double Eigenvalue with 1 Eigenvector From the real eigenvalue/vector pair, l 1 and ?h 1 , we find one solution, e l1 t ?h 1 By our work in the 2x
Question: (a) How does HTML allow you to: (i) turn an image into a clickable hyperlink? Include code to switch off the default border (ii) convert the above hyperlink i
In this section we need to take a brief look at systems of differential equations which are larger than 2 x 2. The problem now is not like the first few sections where we looked at
i want another php script like that one in assignment: EM201484 SA727PHP i want to parse out an urls form log file i will post attachments for a demo
Do you guys do linux projects?
Why is this correct/when is this the right idea
how to create a screen for messages for a data transmission system
This assignment is divided into two parts. The goal is to write a Java program that calculates capital gain on a stock market, see Lab 7. When a share of common stock of some co
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