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slega [8]
3 years ago
10

2.1. The stream cipher described in Definition 2.1.1 can easily be generalized to work in alphabets other than the binary one. F

or manual encryption, an especially useful one is a stream cipher that operates on letters. 1. Develop a scheme which operates with the letters A, B,..., Z, represented by the numbers 0,1,...,25. What does the key (stream) look like? What are the encryption and decryption functions? 2. Decrypt the following cipher text: bsaspp kkuosp which was encrypted using the key: rsidpy dkawoa 3. How was the young man murdered?

Computers and Technology
1 answer:
nekit [7.7K]3 years ago
7 0

Answer:

See attached image

Explanation:

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The ___________ method returns the length of an array.
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A. Append

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Complete the sentence.<br> The IP protocol creates and addresses packets at the _____ layer.
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A business wants to centralize its administrative tasks. At the same time, it wants the existing systems to manage and sustain t
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4 years ago
Which commas is used to combine two or more cells together into one cell
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5 0
3 years ago
Write a program that replaces words in a sentence. The input begins with an integer indicating the number of word replacement pa
kramer

Answer: provided in the explanation segment

Explanation:

This is the code to run the program:

CODE:  

//Input: 3 automobile car manufacturer maker children kids

  //15 The automobile manufacturer recommends car seats for children if the automobile doesn't already have one.

  import java.util.Scanner;

  public class LabProgram{

  public static int findWordInWordList(String[] wordList, String wordToFind, int numInList) {

          for (int i = 0; i < numInList; i++) {

              if (wordList[i].equals(wordToFind)) {

                  return i;

              }

          }

          return -1;

      }

      public static void main(String[] args) {

          Scanner scan = new Scanner(System.in);

          String[] original_String = new String[20];

              String[] modified_String = new String[20];

          int numInList = scan.nextInt();

          for (int i = 0; i < numInList; i++) {

              original_String[i] = scan.next();

              modified_String[i] = scan.next();

          }

          int num_Of_Words = scan.nextInt();

          String[] words_To_Replace = new String[num_Of_Words];

          for (int i = 0; i < num_Of_Words; i++) {

              words_To_Replace[i] = scan.next();

          }

          int indx;

          for (int i = 0; i < num_Of_Words; i++) {

              indx = findWordInWordList(original_String, words_To_Replace[i], numInList);

              if (indx != -1)

                  words_To_Replace[i] = modified_String[indx];

          }

          for (int i = 0; i < num_Of_Words; i++)

              System.out.print(words_To_Replace[i] + " ");

          System.out.println();

      scan.close();

      }

  }

cheers i hope this helps!!!!1

3 0
4 years ago
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