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3 years ago

Consider a k=8 block cipher.

Computers and Technology

1 answer:

sukhopar [10]3 years ago

8 0

Answer:

BlockBlock[1] cryptography, a block cipher is a deterministic algorithm operating on fixed-length groups of bits, called blocks. It uses an unvarying transformation, that is, it uses a block. They are specified elementary components in the design of many cryptographic protocols and are widely used to implement the encryption of large amounts of data, including data exchange protocols.

Even a secure block cipher is suitable for the encryption of only a single block of data at a time, using a fixed key. A multitude of modes of operation have been designed to allow their repeated use in a secure way to achieve the security goals of confidentiality and authenticity. However, block ciphers may also feature as building blocks in other cryptographic protocols, such as universal hash functions and pseudorandom number generators.

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Meg[] elements = {new Lois(), new Stewie(), new Meg(), new Brian()}; for (int i =0; i

Stells [14]

Complete question is attached as snapshot.

Answer:

This will result in a compilation error.

Here's the inheritance hierarchy:

Meg -> Lois -> Brian -> Stewie

Now Meg has 2 public Fxns, a() and toString().

Lois inherits from Meg and all its public functions as well but, overrides the a() fxn of its super class.

So finally Lois has fxns a(), b() and toString().

Brian extends Lois and inherits all the above listed fxns of Lois, but overrides the b() and toString() fxns.

Stewie extends Brian and inherits all the fxns of Brian, but overrides the a() and toString() fxns.

In the Main driver fxn, we call a() and b() methods of all these classes but, the base class Meg has no b() and it is not extending any class so its not available in its scope.

This results in a compilation error.

Explanation:

7 0

3 years ago

Write a program whose inputs are two integers, and whose output is the smallest of the two values.

andrezito [222]

Method 1 :

Using If else statements: If the condition checks whether num1 is smaller than num2 if so it will print 'Smallest of these two integers is num1'.

else it will print 'Smallest of these two integers is num2'

Method 2:

Using the 'min' method: using the method min(num1,num2), the program finds the smallest value and prints it directly to the user.

Python Program using method 1

#PYTHON PROGRAM TO FIND SMALLEST INTEGER VALUE FROM TWO INPUTS FROM USER - Method 1

#Accepts inputs from user

num1 = int (input ("Enter your first number:")) #Gets the first integer input from user and stores in num1

num2 = int (input ("Enter your second number: ")) #Gets the second integer input from user and stores in num2

#Finding output by if else

#Checks num1 smaller than num2

if (num1 < num2):

#assign num1 to small

small = num1

else:

#assign num2 to small

small = num2

print ("Smallest of these two integers is", small)

Python Program using method 2

#PYTHON PROGRAM TO FIND SMALLEST INTEGER VALUE FROM TWO INPUTS FROM USER - Method 2

#Accepts inputs from user

num1 = int (input ("Enter your first number:")) #Gets the first integer input from user and stores in num1

num2 = int (input ("Enter your second number: ")) #Gets the second integer input from user and stores in num2

#Finding output using min method

print("\n Smallest of these two integers is",min(num1,num2)) #Prints output to user

8 0

2 years ago

What is a functionalist perspective of cell phones, internet and personal computers?

Sedbober [7]

As these technologies are rapidly evolving a functionalist would say that they unbalance the equilibrium of the social state, and is therefore undesirable as there is more interaction and adaptation of habits from other societies. But they also say that it's not a good thing to change immediately because it might disrupt the society. Therefore it has to change slowly.

3 0

4 years ago

Explain insert a ternary operator.?

jek_recluse [69]

Explain insert ternary operator.?

______________________________________

<h3>QUESTION;</h3>

Explain insert ternary operator.?

<h2>ANSWER;</h2>

The ternary operator is an operator that exists in some programming languages,which takes three operands rather than typical one or two that most operators use. lt provides a way to shorten a simple of else block. for example,consider the below JavaScript code. var num =4, msg = "";if (num === 4 )

6 0

2 years ago

Can you give me a long list of kid's cartoons

notka56 [123]

Gravity Falls
Adventure Time
SpongeBob SquarePants,
Cailou
Bubble Guppies
Dora
Teletubbies

4 0

3 years ago

Read 2 more answers