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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
Write down a python program which takes two numbers and creates the factors of both numbers and displays the greatest common factor.
Needless to say, the dictionary order based on the ASCII order is not what a real-world indexing software wants. So, we want to implement the dictionary order of strings in the standard wa
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("--..
Design a prgram USING PYTHON that students can use to calculate what score they need on final exam to get a certan final grade for a course.
Write a function numOccur(s), where s is a string; the function should return a dictionary whose keys are the 26 ascii letters abcdefghijklmnopqrstuvwxyz
Improve the readability and structural design of the code by improving the function names, variables, and loops, as well as whitespace. Move functions close to related functions or blocks of code related to your organised code.
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..
The data file is a comma separated text values stored in a file with '.CSV' extension. The file has five columns corresponding to employee data fields listed above.
Rewrite the cleint software so that it does not display an echo of a message sent by the users. Maybe it means that each time a user tries to send a private message that same message is also sent back to them? summary: stop that from happening?
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.
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 ..
This programming project will be a simple, working program, using Python language, which utilizes a good design process and includes:Sequential, selection, and repetitive programming statements as well as,At least one function call.
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