For aes with a 128-bit block length and a 128-bit key length, what is the output of the first round of aes if the plaintext consists of 128 zeros and the first subkey consists of 128 zeros?

Answers

Answer 1
The answer is 66e94bd4ef8a2c3b884cfa59ca342b2e.

You can check it with the following node.js program:

const crypto = require('crypto');
const zeros = Buffer.alloc(16);
var cipher = crypto.createCipheriv('aes-128-cbc', zeros, zeros);
var encrypted = Buffer.concat([cipher.update(zeros), cipher.final()]);
console.log(encrypted.toString('hex'));

Note that the output will contain 2 blocks of 128 bit, this is due to the padding algorithm. For this question you can ignore the second block.
Answer 2

Final answer:

The output of the first round of AES with a 128-bit block length and a 128-bit key length, where both the plaintext and subkey are 128 zeros, remains as 128 zeros due to the characteristics of the XOR operation in the AddRoundKey step.

Explanation:

For AES with a 128-bit block length and a 128-bit key length, the output of the first round will be a series of binary values that result from the initial round of AES encryption, which includes SubBytes, ShiftRows, and MixColumns transformations, followed by AddRoundKey. However, in this specific case where both the plaintext and the first subkey consist of 128 zeros, the output after the AddRoundKey operation remains the same as the input plaintext because the AddRoundKey step essentially XORs the round key with the plaintext, and XORing anything with zero yields the original value unmodified.

Consequently, the initial series of zeros would remain unchanged after the first round due to the zeroed key.


Related Questions

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Internet2 is known today as the new high-speed network. It is define in this question as a plan to implement a newer, very high-speed network that will cover the United States, interconnecting universities and research centers at transmission rates up to a gigabit per second (1000 Mbps). The answer in this question is Internet2.

Identify and describe the difference between: an internet connected computer's numerical address and the human readable name for that computer.

Answers

An internet connected computer's numerical address is also called Internet Protocol address or commonly known as IP address. It is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. IP address serves two principal functions: location addressing and host or network interface identification. While the human readable name for that computer is commonly known as Computer Name or Machine Address, it is the identification of the device. Now, we can conclude the difference between an IP address and a machine address: In brief, the machine address is only one part of the IP address that identifies a location of a machine, and the IP address consists of numbers which identify a network as well as a computer machine.

The purpose of the ____________ element is to provide a method for a browser to display different images depending on specific criteria indicated by the web developer

Answers

Answer: <img>

Explanation:
The <img> element is used in HTML to display an image.
The <img> element has several attributes that point to different image types.
(a) It has a "src" attribute which points to the location of the image.
(b) It has an "alt" attribute that displays descriptive text in case the image cannot be displayed.
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After unit and integration testing are completed, _________ testing ensures that all hardware and software components work together.​
Question 5 options:

​application

​system

​unit

​integration

Answers

After unit and integration testing are completed, _________ testing ensures that all hardware and software components work together.​

System

Ping pc-b from a command prompt window on pc-a. were the pings successful? why?

Answers

If the pings are successful you are either on the same subnet and everything is configured correctly or ICMP echo is enabled on the router which it should be by default internally. Externally, ICMP can/should be disabled to avoid DOS attacks.

List two windows utilities that can give you information about your hard drive. describe the steps you take to access these utilities.

Answers

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Final answer:

File Explorer and Task Manager are Windows utilities that provide information about the hard drive; you can access them through specific steps.

Explanation:

Two Windows utilities that can provide information about your hard drive are File Explorer and Task Manager. To access these utilities:

For File Explorer, click Start > File Explorer or select the File Explorer icon in the taskbar. You can view drive information by right-clicking on a drive and selecting Properties.

For Task Manager, right-click the taskbar and choose Task Manager. Go to the Performance tab to view disk usage and other details about your hard drive.

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Answers

I would use the grep command on the path /etc/diet/config and pass in the word "those" as an argument in order to print out all the lines that have that word in them.

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Answers

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With this assumption in mind, each individual layer in a multi-layered security approach focuses on a specific area where the malware could attack. By working in concert, these layers of security offer a better chance of stopping intruders from breaching company networks than using a single solution.

The types of security layers you can use in your network defense include:

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Provide the type assembly language instruction and binary representation of instruction

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it is the msinpoin of the passage

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Answers

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Answers

The correct answer would be Windows.

Write a for loop to populate array userguesses with num_guesses integers. read integers using scanner. ex: if num_guesses is 3 and user enters 9 5 2, then userguesses is {9, 5, 2} java

Answers

import java.util.Scanner; public class StoreGuesses {   public static void main (String [] args) {
   public static void main (String [] args) {      Scanner scnr = new Scanner(System.in);
      Scanner scnr = new Scanner(System.in);      final int NUM_GUESSES = 3;
      final int NUM_GUESSES = 3;      int[] userGuesses = new int[NUM_GUESSES];
      int[] userGuesses = new int[NUM_GUESSES];      int i = 0;
      int i = 0;             for (i = 0; i < NUM_GUESSES; ++i) {         
                  userGuesses[i] = scnr.nextInt();
      }
       for (i = 0; i < NUM_GUESSES; ++i){         System.out.print(userGuesses[i] + " ");
         System.out.print(userGuesses[i] + " ");      }
      }       return;   }
   }}
}

Answer:

For displaying the number guesses in array user guess, first declare the number guess variable and set it to 3. After this, store the number guesses in array user guesses variables. Then declare the for loop and run till the number of guesses. Finally, print the number of guesses using print statement.

Further explanation:

Following is the JAVA program to populate the array user guesses with number guesses integers.

Code:

import java.util.Scanner;

//class definition

public class NumberGuesses

{

public static void main (String [] args)  

{

Scanner scnr = new Scanner(System.in);

//initialize the variable number guesses with 3

final int num_guesses=3;

//store the number guesses variable in an array

int[] user_guesses = new int[num_guesses];

int i = 0;

//for loop declaration

for (i = 0; i < num_guesses; ++i)

{

user_guesses[i] = scnr.nextInt();

}

for (i = 0; i < num_guesses; ++i)

{

//print the output

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

}

}

return;

}

Learn more:

1. A company that allows you to license software monthly to use online is an example of ? brainly.com/question/10410011

2. Prediction accuracy of a neural network depends on _______________ and ______________. brainly.com/question/10599832

3. The shape of our galaxy was determined ‘on the inside looking out' by surveying the milky way using ____________ telescopes. brainly.com/question/7866623

4. List 3 characteristics of the ideal encryption scheme. brainly.com/question/3000161

Answer details:

Grade: College Engineering

Subject: Computer Science and Engineering

Chapter: JAVA Programming

Keyword:

C Language, C++ language, JAVA, python, for loop, populate, array, read, scanner, class, num_guesses, user_guesses, enters, 9, 5, 2, variable, function, print, condition, true, false, return, system.out.print

What type of device is built into a tablet computer and can send data over radio waves to another device such as a laser printer?

Answers

Wifi and/or Bluetooth 

Write a code that prompts the user to enter a number in the range of 1 through 100 and validates the input python

Answers

foo = int( input( "Enter a number between 1 and 100 inclusive: " ) )
if( ( foo > 100 ) or ( foo < 1 ) ):
    print( "Stoopid!" )
    exit( 1 )

The code that prompts the user to enter a number in the range of 1 through 100 and validates the input python the programming is givn below.

What is the motive of programming?

It is to discover a collection of commands with the intention to automate the overall performance of a task (which may be as complicated as a running system) on a computer, frequently for fixing a given problem.

Foo = int(input("Enter a variety of between

1 and one hundred inclusive: "))

if((foo>10)or(foo<1)): print("Stoopid!") exit(1)

Read more about the input :

https://brainly.com/question/1786465

#SPJ2

A _______ file is a type of vector graphics file created specifically for Windows.

Answers

A .wmf file is a type of vector graphics file created specifically for Windows.

Answer:

A WMF file is a type of vector graphics file created specifically for Windows.

Explanation:

A Windows Metafile (WMF) contains a special type of graphic file used on Microsoft operating systems. It does not contain a pixel by pixel representation of the image, but instead uses commands to recreate the image. The most common place to view WMF files is in your clip art folders. A simple way to view a WMF file is to open it with the Paint program that comes with Windows.

Java programming 4.26 write a program that displays the value of e for i

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