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Bogdan [553]
4 years ago
7

Tecty Motors Pvt. Ltd. has recently deployed RFID technology in the vehicles which allows the car owner to unlock the car with t

he exchange of a valid RFID signal between a reader and a tag. Jamie, on the other hand, is a hacker who decided to exploit this technology with the aim of stealing the target vehicle. To perform this attack on the target vehicle, he first used an automated tool to intercept the signals between the reader and the tag to capture a valid RFID signal and then later used the same signal to unlock and steal the victim’s car.Which of the following RFID attacks Jamie has performed in the above scenario?A . RFID cloningB . Replay attackC . DoS attackD . Power analysis attack
Computers and Technology
1 answer:
loris [4]4 years ago
7 0

Answer:

The answer is B.

Explanation:

Radio Frequency Identification (RFID) is a technology that uses radio waves to  secure objects, pair devices, tag them etc. and it is made up of a transmitter which emits radio waves and a receiver.

The example given in the question where Jamie listens to the communication between the RFID tag and the devide of the user and copies the information to later use it to gain access to the vehicle is an example of a replay attack.

Also called "eavesdropping & replay", the first part is the listening to the conversation to steal the data and the replay part is where he uses the information to gain access.

I hope this answer helps.

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Algorithm for converting decimal into binary.
belka [17]
The simplest way is to make for loop first you need to<span> generate 1,2,4,8,16,32,64,128,256....and others number in Array. Then you will check every number. Like this.</span>
<span>Decimal </span>Input 84;
64 is closest to 84.
84-64=20
<span>Write: </span>1
20-32=-12(Because It's negative you will write 0)
Write:10
20-16=4
<span>Write: </span>101
4-8=-4 (Negative)
Write:1010
4-4=0
<span>Write: </span>10101
0-2=-2
0-1=-1
<span>Write: </span><span>1010100 = 84</span>
7 0
4 years ago
In which encryption strategy is the plaintext encrypted one character at a time and each encrypted character depends on that sin
Natasha_Volkova [10]

Answer:

Caesar cipher

Explanation:

In formation technology, cryptography or cryptology is a process of coding or encrypting information, using algorithms and input values in a network, where there is a present of a third party called adversaries or attackers.

There are different types of cryptography, namely, symmetric, assymmetric and hash cryptography.

Ciphers are algorithms used in cryptography to encode (encrypt) or decode (decrypt) information. An example of cipher is the Ceasar's cipher.

Ceasar cipher is a simple type of substitution cipher that encrpts plain text one character at a time and each coded character depends on the single character and a fixed distance value.

4 0
3 years ago
Given a string on one line and an integer index on a second line, output the character of the string at that index.
morpeh [17]

The code is in Java.

It uses a built-in function named chartAt() to get the character at the entered index.

Recall that built-in functions are functions that are already defined in the language. We can use them by calling the function and passing the required argument. The chartAt() function takes an index and returns the character at that index.

Comments are used to explain each line of the code.

//Main.java

import java.util.Scanner;

public class Main

{

public static void main(String[] args) {

    //Scanner object to get input from the user

    Scanner input = new Scanner(System.in);

   

    //Declaring the variables

    String s;

    int index;

    char c;

   

    //Getting the inputs

    s = input.nextLine();

    index = input.nextInt();

   

    //Getting the character at the index using the charAt() function

    c = s.charAt(index);

   

    //Printing the character

 System.out.println(c);

}

}

You may check the following link to see another similar question:

brainly.com/question/15688375

5 0
3 years ago
The owner of a candle shop has asked for your help. The shop sells three types of candles as shown below:
Keith_Richards [23]

Answer:

import java.util.Scanner;

public class Main {

 public static void main(String[] args) {

   double total = 0;

   double fPrice, sPrice, tPrice;

   int firstN = 0, secdN = 0, thirdN = 0, fTime, sTime, tTime;

   int totalT = 0;

   isEnd = "n";

   for (;;){

       if (isEnd == "y"){

           break;

       }

       Scanner in = new Scanner(System.in);

       int option = in.nextInt();

       switch (option){

         case 1:

             fPrice = 2.50;

             fTime = 5;

             System.out.print("Enter number of items: ");

             firstN += in.nextInt();

             totalT += fTime * firstN;

             total += fPrice * firstN;

             break,

         case 2:

             sPrice = 3.75;

             sTime = 7;

             System.out.print("Enter number of items: ");

             secdN += in.nextInt();

             totalT += sTime * secdN;

             total += sPrice * secdN;

             break,

         case 3:

             tPrice = 5.99;

             tTime = 12;

             System.out.print("Enter number of items: ");

             thirdN += in.nextInt();

             totalT += tTime * thirdN ;

             total += tPrice * thirdN;

             break,

        default:

             System.out.println("Looking forward to the Weekend");

       }

       System.out.print("Do you want to end the order? y/n: ");

       isEnd = in.nextLine();

   }

   System.out.println("Number of Type 1 candles bought : "+firstN);

   System.out.println("Number of Type 2 candles bought : "+secdN);

   System.out.println("Number of Type 3 candles bought : "+thirdN);

   System.out.println("Total cost is : "+total);

   System.out.println("Total burn time is : "+totalT);

   double costPerBurn = (totatT * 60) / total;

   System.out.println("Cost per minute : "+ costPerBurn);

 }

}

Explanation:

The Java program creates a continuous for-loop statement that gets the candle type, price and amount ordered from a switch and accumulates the total cost and burn time of the candles bought and the cost per minute burn of the candles consecutively.

3 0
3 years ago
A colleague asks you to research a CPU for a new server that will run Windows Server 2019. He explains the server roles that he
SashulF [63]

Answer:

a

Explanation:

just gesing

3 0
3 years ago
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