1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pshichka [43]
3 years ago
10

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

nual 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
Computers and Technology
1 answer:
Free_Kalibri [48]3 years ago
8 0

Answer:

Check the explanation

Explanation:

1) supposing the keystream is a stream that is of random bits in Z26, we can describe a stream cipher based on the Latin Alphabet that is as follows (where A ↔ 0, B ↔ 1, C ↔ 2 etc):

y_{i} =x_{i} +k_{i} mod26

x_{i} =y_{i} -k_{i} mod26

2)

x_{i} =y_{i} -k_{i} = ” B ” − ” R ” = 1 − 17 = − 16 ≡ 10 mod 26 = ” K ” etc ·

The Decrypted Text is: ”KASPAR HAUSER”

You might be interested in
Why is a class an excellent representation of an abstract data type?
JulsSmile [24]

Answer:

 A class is an good representation of the abstract data type as it is represented independently. For implementing a class, it is use to specify the interface for an abstract class.

Class is one of the type of abstract data type for the objects that whose behavior is basically define by the set of operations and values. It is known as abstract as, it provide an implementation independently.

When the class is using in an abstract data type, then it refers as hidden representation of the data. In this modern era, class is use for the implementation of the abstract data type.

6 0
3 years ago
hi pls help me how to connect my imac to our wifi cause it’s not showing the wifi option (use pic for reference)
Ainat [17]
Your searching in Bluetooth not wifi you need to switch it
7 0
2 years ago
Do you really think our life applications and OSs will be open source at the end for everything?
algol [13]

Answer:

 Yes, the given statement is true because the life applications like various networking application and computer and television shows are basically operated and monitored by various OSS  (operational support system).

The open source basically refers to the system which is open for all so that everyone can easily contribute. The operational support system handle all the applications based on our daily life. By proper analyzing the operational system so that it provide efficient output and various resources.

Therefore, various life application and operational system are open source.  

4 0
2 years ago
Complete the following sentence. <br> _______ is often used to solve riddles and puzzles.
Step2247 [10]

Answer:

An answer-key?

Explanation:

I'm sorry but this needs more context, hope this helps a little.

8 0
2 years ago
Read 2 more answers
Write a destructor for the CarCounter class that outputs the following. End with newline.
ycow [4]

Answer:

Following are the code to this question:

CarCounter::~CarCounter()//Defining destructor CarCounter

{

cout << "Destroying CarCounter\n";//print message Destroying CarCounter

}

Explanation:

Following are the full program to this question:

#include <iostream>//Defining header file

using namespace std;

class CarCounter //Defining class CarCounter

{

public:

CarCounter();//Defining constructor CarCounter

~CarCounter();//Defining destructor CarCounter

private:

int carCount;//Defining integer variable carCount

};

CarCounter::CarCounter()//declaring constructor  

{

carCount = 0;//assign value in carCount variable

return;//using return keyword

}

CarCounter::~CarCounter()//Defining destructor CarCounter

{

cout << "Destroying CarCounter\n";//print message Destroying CarCounter

}

int main() //Defining main method

{

CarCounter* parkingLot = new CarCounter();//Defining class object parkingLot

delete parkingLot;//

return 0;

}

  • In the given C++ language code, a class "CarCounter" is defined, and inside the class, a "constructor, Destructors, and an integer variable" is defined.  
  • Outside the class, the scope resolution operator is used to define the constructor and assign value "0" in the integer variable.  
  • In the above-given code, the scope resolution operator, to define destructor and inside this cout function is used, which prints a message.  
  • In the main method, the class object is created, which automatically calls its class constructor and destructors.  
7 0
3 years ago
Other questions:
  • Write the method public static doublell quizAverages (double (1 scores). which takes a 2D array of doubles that represent quiz s
    11·1 answer
  • Which of the following types of access controls do not describe a lock? (a)- Directive (b)- Physical (c)- Preventative (d)- Dete
    8·1 answer
  • What is the smallest unit of data on the hard drive?
    5·1 answer
  • Which of the following means to find and fix errors in code?Which of the following means to find and fix errors in code?
    5·1 answer
  • Which of the selections below is not a benefit of imaging the computers on your network? There are fewer licensing fees because
    11·1 answer
  • The average price of milk increased from $3.00 last year to $3.50 this year. This is most likely due to:
    14·1 answer
  • Kevin needs to get his data from a database into a text file to send to another group. He needs to _____.
    12·2 answers
  • How much is this worth in dollars​
    9·1 answer
  • which of the following can be represented by a sequence of bits. 1. An integer 2. An alphanumeric character 3. A machine languag
    12·1 answer
  • Do small companies need computers? why?<br>​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!