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Permutation Ciphers (a.k.a. Transposition Ciphers) are another class of simple cryptosystems. For this we use the functions apply(.,.) and inv(.) from Homework 4; copy these two functions into your le as auxiliary functions.(1.a) De ne a function encr(k,m), where the message m is any string over the characters a...zA...Z, and where the key k is a permutation. When len(m) is not a multiple of len(k) we append (a minimum number of) Z's to m to make len(m) a multiple of len(k). In the encryption, m is subdivided into successive chunks of length len(k), and the permutation k is applied to each chunk. The number of chunks is ceil(len(m)/len(k)).(1.b) De ne a decryption function decr(k,c), which inverts the encryption. Here, c is any string over the characters a...zA...Z, such that len(c) is a multiple of len(k).(1.c) As comments, answer the following:Give the encryption of the following text, with key [3, 2, 4, 1, 0] :'SineLaboreNihil'Decrypt the following cipher with the key [6, 1, 0, 2, 7, 4, 5, 3]:EAGLSIALDOTMIISNPIVSAINAATREMUNM
Analyze the emails and predict whether the mail is a spam or not a spam - Create a training file and copy the text of several mails and spams in to it And create a test set identical to the training set but with different examples.
Write a simple Python ATM program. Ask user to enter their account number, and print their initail balance. (Just make one up). Ask them if they wish to make deposit or withdrawal.
Write a Python program called hours.py which imports three dictionaries, and uses the data in them to calculate how many hours each person has spent in the lab.
Be sure to define a function to calculate the values and print the table displaying the interest rate in the first column, the monthly payment in the second column, and the total payment in the third column. Your program should not allow the user to ..
Without using the system() function to call any bash commands, write a python program that will implement a simple version of the diff command.
The program is to print the time in seconds that the iterative version takes, the time in seconds that the recursive version takes, and the difference between the times.
Write a function numOccur(s), where s is a string; the function should return a dictionary whose keys are the 26 ascii letters abcdefghijklmnopqrstuvwxyz
the program will ask you to insert the year that the user is interested in, then ask the gender that the user is interested in, and print out the most popular names corresponding to the year and gender. FYI, the number on the right represents how man..
Then, after the functions, read in the initial number for generating the sequences. Here, check that it is a positive integer. If it is not, give an error message and exit the program.
Design a function that accepts an integer argument and returns the sum of all the integers from 1 up to the number passed as an argument. For example, if 50 is passed as an argument, the function will return the sum of 1, 2, 3, 4, . . . 50. Use recur..
Please use primarily PHP or Python to solve the exercise and create a simple and responsive GUI, using HTML, CSS and JavaScript.Do not use a database.
Fill in the Python code to play Tic Tac Toe. I won't award points unless it runs succesfully. # Tic-Tac-Toe Game def drawBoard(board): # Draws the board using the list of numbers print(" ") print(" ",board[0]," | ",board[1]," | ", board[2]) print("--..
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