Transposition Cipher. As the name suggests, the basic idea of the transposition cipher is to take themessage's symbols and jumble them up so that they become unreadable. The cipher decides how tomove the symbols around using what's known as the key, denoted by k. To encrypt a text of lengthn, the key k is usually chosen to be a number between 2 and k -1 (inclusive). The exact encryptionprocess is best described using an example.Consider encrypting the textCommon_ sense_in an_uncommon_degree_is.what the_world calls_wisdomwhich contains 65 symbols, including spaces. The spaces are indicated by the symbol.We'll use k = 10. First, we’ll draw k boxes in a row–hence, drawing 10 boxes in our case.Following that, we'll start filling the boxes from left to right using the symbols (letters and punctuationmarks) from the input text. When you run out of boxes, you create a new row of k boxes and continuefilling them until you accommodate the text entirely:COmmose innc0 m|mgree itheanudeWhater1dс а11Widm3 We include the x's in the last row only to remind ourselves that they aren't part of the input text andshould be ignored in later processing.To complete the encryption, we'll read the symbol in the first (leftmost) column from top to bottom,then the second column from top to bottom, so on so forth. Notice that when we hit an x, we simplyskip over it onto the next column. The resulting encrypted string isCsngalioecrtdsm_oedmimetcoonm_hamn_oiel ans lsnwse_dwo_nuehrwYOUR TASK: Implement a function enc (msg: str, key: int) -> str that takes a message stringmsg and a key key, 1< key < len(msg), and returns a string representing the message encrypted usingthe transposition cipher (as explained above). Here are some more examples:• enc("abc",2) == 'acb'• enc("monosodium glutamate", 7)=='mitouanmmo asgtoledu'• enc("polylogarithmicsubexponential", 3)=='pygimseonaolatiuxntllorhcbpei'

#Creating function for encryption using transposition def enc(msg:str, key:int): ciphertext =…

Answered: YOUR TASK: Implement a function enc…

Engineering

Computer Science

YOUR TASK: Implement a function enc (msg: str, key: int) -> strthat takes a message string msg and a key key, 1< key

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Example Input14 31 1 1 24 14 23 2Example Output432
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Write a subroutine that takes a simple sentence in noun-verb-object form and parses the sentence into its different parts. For example, the sentence “Mary walked the dog” is parsed into this:Noun: MaryVerb: walkedObject: the dogThis function should work with both String objects and StringBuilder objects.
Question 2: Encoding Cryptography is the study of trying to create secure information by obscuring the original message. One simple encryption method is to substitute letters from the original message with other letters. To make it harder to decrypt the hidden message, we may also remove clues such as the length of the words in the message and any punctuation or capitalization. Write a function encode that consumes a string message. The function produces a string which is encrypted according the following procedure: • Only the letters from the original message will be encrypted. Other characters such as spaces, punctuation, numeric digits, etc. are not included in the encrypted message at all. • The encrypted message will only contain uppercase letters. • Each letter will be replaced by the uppercase letter at the opposite end of the English alphabet. In other words, A or a will become z, B or b will become Y, C or c will become x, .., z or z will become A. • The encrypted message will…
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