Complete the code in c++ for b and c in the image below 3. Encryption AlgorithmThe encryption algorithm shall consist of two parts: (1) substitution, and (2) encryption on blocksof size 4 x 4 characters. The detailed description of the steps is as follows:a)PreprocessingRemove any punctuation and whitespace characters from the input.o Example:Input Text:Output Text: ENCRYPTTHISMESSAGEUSINGTHEALGORITHMDESCRIBEDBELOWb) SubstitutionKey:Input Text:Output Text:Perform a polyalphabetic substitution using the Vigenère cipher on the input file with thekey provided in the key input file.O Example:o Example:Input:WVOGJTXQHUHXICWYYMGHTRKQHQPWKYVGENCRYPT THIS MESSAGE USING THE ALGORITHM DESCRIBED BELOW.LPYSPWGOPageSIMPLEEXAMPLEKEYc) PaddingSteps d) f) are performed on blocks of size 4 x 4 characters formed from the output ofstep b (i.e., substitution). They are parts of AES and as in any block cipher, the input hasto be padded. In this particular case, pad the output from the previous step with A's sothat the length of the message is divisible by 16.ENCRYPTTHISMESSAGEUSINGTHEALGORITHMDESCRIBEDBELOWwVOGJTXQHUHXICWYYMGHTRKQHQPWKYVGLPYSPWGOINTOFOPMOOutput:WVOGJTXQHUHXICWYYMGHTRKQHQPWKYVGLPYSPWGO2>0

One way to encrypt the alphabetic text is with the Vigenere Cipher. Polyalphabetic substitution is used in its simplest form. Any substitution-based cipher that employs several substitution alphabets is said to be polyalphabetic. The original text is encrypted by employing the Vigenère square or Vigenère table. The table has the alphabet printed out 26 times in various rows, with each alphabet being cyclically moved to the left in comparison to the previous alphabet to represent the 26 potential Caesar Ciphers.The cipher switches to an alphabet from a different row at various stages during the encryption process.An ongoing keyword determines which alphabet is used at each stage. Encryption The plaintext(P) and key(K) are added modulo 26. Ei = (Pi + Ki) mod 26 Decryption Di = (Ei - Ki + 26) mod 26 program // C++ code to implement Vigenere Cipher#include<bits/stdc++.h>using namespace std; // This function generates the key in// a cyclic manner until its length isn't// equal to the length of the original text string generateKey(string str, string key){ int x = str.size(); for (int i = 0; ; i++) { if (x == i) i = 0; if (key.size() == str.size()) break; key.push_back(key[i]); } return key;} // This function returns the encrypted text// generated with the help of the keystring cipherText(string str, string key){ string cipher_text; for (int i = 0; i < str.size(); i++) { // converting in range 0-25 char x = (str[i] + key[i]) %26; // convert into alphabets(ASCII) x += 'A'; cipher_text.push_back(x); } return cipher_text;} // Driver program to test the above functionint main(){ string str = "ENCRYPTTHISMESSAGEUSINGTHEALGORITHMDESCRIBEDBELOW"; string keyword = "SIMPLEEXAMPLEKEY"; string key = generateKey(str, keyword); string cipher_text = cipherText(str, key); cout << "Ciphertext: " << cipher_text << "\n"; return 0;}1) In the main function take 2 variables one for the input message and another for the key. 2) In this code keyword and str are the string-type variable that is taken to store the key and input text. 3) Then create a key of the same size as the input pass key, str to a user-defined function generateKey as arguments generateKey(str,keyword) 4) this function will return a key of the same size as our input text. Store it into a new string type variable key. 5)Pass this new key and input text to a user-defined function cipherText(str, key) and store its return text into a variable called cipher_text . 6) Now see about generateKey function=>generateKey(str, keyword) first of all, take the size of the input string into a variable x using size() function Run an infinite for loop inside for loop check condition if the size of the input string is equal to I then assign 0 to i. again one more condition checks if key.size() equals to input string size break the for loop otherwise, make the length of the key equal to the size of the input text by putting key elements one by one into the key. This function generates the key in a cyclic manner until its length isn't equal to the length of the original text cipherText function will take 2 arguments one is the original string another one is the return value of generateKey function. string cipherText(string str, string key) take a variable cipher_text of string type. run a for loop until I become equal to the size of str. convert the range into 0-25 using (char x = (str[i] + key[i]) %26) then convert them into alphabets using (x += 'A') then insert x into cipher text string variable using (cipher_text.push_back(x)) return cipher_text D part can be done using the same logic

Engineering

Computer Engineering

b) Substitution Perform a polyalphabetic substitution using the Vigenère cipher on the input file with the key provided in the key input file. 4 o Example: Key: Input Text: Output Text: SIMPLEEXAMPLEKEY ENCRYPTTHISMESSAGEUSINGTHEALGORITHMDESCRIBEDBELOW wVOGJTXQHUHXICWYYMGHTRKQHQPWKYVGLPYSPWGOINTOFOPMO

b) Substitution Perform a polyalphabetic substitution using the Vigenère cipher on the input file with the key provided in the key input file. 4 o Example: Key: Input Text: Output Text: SIMPLEEXAMPLEKEY ENCRYPTTHISMESSAGEUSINGTHEALGORITHMDESCRIBEDBELOW wVOGJTXQHUHXICWYYMGHTRKQHQPWKYVGLPYSPWGOINTOFOPMO

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

See similar textbooks

Related questions

Q: Use a loop to print all array alpha separated with a space.Please the codes in C++.

A: In the program below, an array alpha is declared and initialized with 10 values. The elements of the…

Q: Write a program in c bullet: to Input data into an array of 5 elements Calculate the sum and average…

A: Note : since its mentioned to provide input and output on c++ . we are providing code in c++…

Q: Write a C++ code snippet and 0,2,4,6,7,5,3 by using this run a code with array and I want…

A: The C++ code is

Q: Q1: Write a program in C++ to handle the four operations (+,, , and /) on 2D matrices.

A: Programming instructions: Include the necessary header file. Declare require variables and…

Q: (a) If r and s are regular expressions, explain why (r+s)* # r* + s* . (b) Also carefully explain…

A: Your answer is given below. Introduction :- If r and s are regular expression then, r* = ε + r +…

Q: In C++, the result produced by the expression (20-2*3)/(6-3) is A 4 NONE D 18 E) 4.67

A: Here we need to consider the precedence and associativity of operator to evaluate the expression.…

Q: program to find the summation of the elements of each column in 2-D array

A: Please find the answer below :

Q: Question 2.2 Write a c++ program to generate 10, 2 digit random numbers and print all the numbers,…

A: here have to determine about c++ code for print 10 random number and max of them.

Q: Please fill in the blanks for C /*This task creates a program that reads 3 lowercase strings and…

A: Please find the answer below :

Q: Write a C++ program to sort a numeric array and a string array. (Length order)

A: Include Header necessary header files in main function declare array variable for numeric and string…

Q: Write C++ statement(s) to do the following: a. Declare an array A of 50 elements of type int b.…

A: The following code answer the few sub-division only, as per guidelines only 3 subdivision can be…

Q: The for, while, and do-while are the 3 looping structures in C++. In several sentences, describe…

A: A pre-test loop tests its condition before each iteration. A post-test loop tests its condition…

Q: 51- Write a function which accepts two array of integers (like arr1 anc of the same size (100), then…

A: here in this question we have asked to write a c++ program which take two array and add its element…

Q: Write a C++ code to print the sum of the elements of the array.

A: The C++ code to print the sum of the elements of the array is as given below:…

Q: 5. Write a C++ program to initialize an array up to five elements. Your answer should include an…

A: In this question we need to write some C++ programs related to array operations.

Q: C ++ program to order the array in ascending

A: C ++ program to order the array in ascending and descending order.

Q: o read a 1D-array with 10 elemen

A: Write a C++ program to read a 1D-array with 10 elements, ' * .factorial for each element and store…

Q: Objective To learn to code, compile and run a program containing selection structures Assignment…

A: Step 1: Prompt and accept date in the format mm/dd/yyyy. Step 2: Use the delimiter "/" to obtain the…

Q: 2-Write a C++ program to input elements in an array and reverse the array using pointers. How to…

A: Logic to reverse an array using pointers is : Take a pointer variable and point to the first…

Q: Given two dictionaries d1 and d2, write a function combine_dict(d1, d2), which return a new…

A: Python code to perform the rule for combine dictionary is given below, hope you like it.

Q: Take input 10 numbers, store them in a array. Add 15 to each value and print them, In C++.

A: Run a for loop from i=0 to i=9, numbers of iteration should be 10. In each iteration take input…

Q: Write a C++ program using array and loop that prompts a user to enter 15 Students' marks in Program…

A: #include<bits/stdc++.h>//Imports all library using namespace std; int main() { // your code…

Q: Using C Code A. Write a program that contains a global structure variable that is initialized to…

A: To write: To write a C program that displays the student's first name, last name, lucky number,…

Q: I am studying on Udemy c++. I had a question of vectors of vectors as code. Is there a way to…

A: You seem to be working on an intriguing project that entails mapping letters to musical notes once…

Q: Read a variable n from the user and generate a series of Fibonacci numbers up to the given n. The…

A: The Fibonacci numbers are the numbers in the following integer sequence.0, 1, 1, 2, 3, 5, 8, 13, 21,…

Q: Write a program in C++ that reads a matrix 3 x 99 and do the following:- Switch between the elements…

A: Write a program in C++ that reads a matrix 3 x99 and do the following:- ‘Switch between the elements…

Q: check if a given array of integers contains 5 next to a 5 somewhere.

A: We have to check whether an array contains 5 next to 5 in it or not in C++ programming language.

Q: Explain following data types [with relevant sample code] which are used in C++

A: Data type: In C++ programming language, datatype is one of the keyword that determines the type and…

Q: Write a code to display the total number of vowels using call by reference approach in C++

A: #include <iostream>using namespace std; void countVowel(string &stringRef, int &count)…

Q: C++ - Vowels and Consonants - Just do everything in main and make sure you comment each step

A: Algorithm: Step-1) First, defining and Initializing the variables which will be used in program as…

Q: Write a C program which is a function printArrayReverse(int* arr, int size) that uses a pointer to…

A: Answer : #include <stdio.h> #define MAX_SIZE 100 struct reverseArray { int…

Q: I am a beginner in C++, show me how to declare a vector of integers in C++. Do not give any fixed…

A: Write a C++ program to declare a Vector in C++. Solution- The syntax to declare a vector in C++ is:…

Q: Q6: Write a C++ program, using function, to merge two arrays in one array.

A: An array is a collection of elements of the same type placed in contiguous memory locations that can…

Q: en inline, bl

A: The difference between inline, block and inline-block?

Q: Multiplication without MUL or *: Write program in C and assembly that multiplies two numbers without…

A: Below is an example of a program written in both C and x86 assembly that multiplies two numbers…

Q: Write a code in C++ and create a two dimensional Array of size 5 X 5. (1) Inserting the following…

A: By given instructions, to create a two dimensional having 5 rows and 5 columns, the programming will…

Q: Reserve string vector and print in C++.(Write in the simplest way,please)

A: Given: Reserve string vector and print in C++.(Write in the simplest way,please)

Question

Complete the code in c++ for b and c in the image below

3. Encryption Algorithm
The encryption algorithm shall consist of two parts: (1) substitution, and (2) encryption on blocks
of size 4 x 4 characters. The detailed description of the steps is as follows:
a)
Preprocessing
Remove any punctuation and whitespace characters from the input.
o Example:
Input Text:
Output Text: ENCRYPTTHISMESSAGEUSINGTHEALGORITHMDESCRIBEDBELOW
b) Substitution
Key:
Input Text:
Output Text:
Perform a polyalphabetic substitution using the Vigenère cipher on the input file with the
key provided in the key input file.
O Example:
o Example:
Input:
WVOG
JTXQ
HUHX
ICWY
YMGH
TRKQ
HQPW
KYVG
ENCRYPT THIS MESSAGE USING THE ALGORITHM DESCRIBED BELOW.
LPYS
PWGO
Page
SIMPLEEXAMPLEKEY
c) Padding
Steps d) f) are performed on blocks of size 4 x 4 characters formed from the output of
step b (i.e., substitution). They are parts of AES and as in any block cipher, the input has
to be padded. In this particular case, pad the output from the previous step with A's so
that the length of the message is divisible by 16.
ENCRYPTTHISMESSAGEUSINGTHEALGORITHMDESCRIBEDBELOW
wVOGJTXQHUHXICWYYMGHTRKQHQPWKYVGLPYSPWGOINTOFOPMO
Output:
WVOG
JTXQ
HUHX
ICWY
YMGH
TRKQ
HQPW
KYVG
LPYS
PWGO
2
>
0

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Recommended textbooks for you

Computer Networking: A Top-Down Approach (7th Edi…

Computer Engineering

ISBN:

9780133594140

Author:

James Kurose, Keith Ross

Publisher:

PEARSON

Computer Organization and Design MIPS Edition, Fi…

Computer Engineering

ISBN:

9780124077263

Author:

David A. Patterson, John L. Hennessy

Publisher:

Elsevier Science

Network+ Guide to Networks (MindTap Course List)

Computer Engineering

ISBN:

9781337569330

Author:

Jill West, Tamara Dean, Jean Andrews

Publisher:

Cengage Learning

Concepts of Database Management

Computer Engineering

ISBN:

9781337093422

Author:

Joy L. Starks, Philip J. Pratt, Mary Z. Last

Publisher:

Cengage Learning

Prelude to Programming

Computer Engineering

ISBN:

9780133750423

Author:

VENIT, Stewart

Publisher:

Pearson Education

Sc Business Data Communications and Networking, T…

Computer Engineering

ISBN:

9781119368830

Author:

FITZGERALD

Publisher:

WILEY

Computer Networking: A Top-Down Approach (7th Edi…

Computer Engineering

ISBN:

9780133594140

Author:

James Kurose, Keith Ross

Publisher:

PEARSON

Computer Organization and Design MIPS Edition, Fi…

Computer Engineering

ISBN:

9780124077263

Author:

David A. Patterson, John L. Hennessy

Publisher:

Elsevier Science

Network+ Guide to Networks (MindTap Course List)

Computer Engineering

ISBN:

9781337569330

Author:

Jill West, Tamara Dean, Jean Andrews

Publisher:

Cengage Learning

Concepts of Database Management

Computer Engineering

ISBN:

9781337093422

Author:

Joy L. Starks, Philip J. Pratt, Mary Z. Last

Publisher:

Cengage Learning

Prelude to Programming

Computer Engineering

ISBN:

9780133750423

Author:

VENIT, Stewart

Publisher:

Pearson Education

Sc Business Data Communications and Networking, T…

Computer Engineering

ISBN:

9781119368830

Author:

FITZGERALD

Publisher:

WILEY

SEE MORE TEXTBOOKS

GET THE APP

About FAQ Academic Integrity Sitemap Document Sitemap

Contact Bartleby Contact Research (Essays)High School Textbooks Literature Guides Concept Explainers by Subject Essay Help Mobile App

GET THE APP

Privacy

Your CA Privacy Rights

Your NV Privacy Rights

Cookie Policy

About Ads

Manage My Data

bartleby, a Learneo, Inc. business