Question

In: Computer Science

Try to make it as simple as you can and explain as much as it needed....

Try to make it as simple as you can and explain as much as it needed.

  1. What are the differences between symmetric encryption and asymmetric encryption? (1 point)

Ans:

  1. What is pseudo random numbers? (1 point)

Ans:

  1. What is Moore’s Law? (1 point)

Ans:

  1. What are four different block cipher modes? (1 point)

Ans:

  1. What is one-time pad? (1 point)

Ans:

Solutions

Expert Solution

Symmetric Key Encryption Asymmetric Key Encryption
It only requires a single key for both encryption and decryption. It requires two key one to encrypt and the other one to decrypt.
The size of cipher text is same or smaller than the original plain text. The size of cipher text is same or larger than the original plain text.
The encryption process is very fast. The encryption process is slow.
It is used when a large amount of data is required to transfer. It is used to transfer small amount of data.
It only provides confidentiality. It provides confidentiality, authenticity and non-repudiation.
Examples: 3DES, AES, DES and RC4 Examples: Diffie-Hellman, ECC, El Gamal, DSA and RSA
In symmetric key encryption, resource utilization is low as compared to asymmetric key encryption.

In asymmetric key encryption, resource utilization is high.

2)

A set of values or elements that is statistically random, but it is derived from a known starting point and is typically repeated over and over. ... It is called "pseudo" random, because the algorithm can repeat the sequence, and the numbers are thus not entirely random.

3)

  • Electronic Code Book (ECB) – Electronic code book is the easiest block cipher mode of functioning. ...
  • Cipher Block Chaining – ...
  • Cipher Feedback Mode (CFB) – ...
  • Output Feedback Mode – ...
  • Counter Mode –

4)

one-time pad is a system in which a private key generated randomly is used only once to encrypt a message that is then decrypted by the receiver using a matching one-time pad and key.


Related Solutions

Try to make it as simple as you can and explain as much as it needed....
Try to make it as simple as you can and explain as much as it needed. What is Trusted Third Party (TTP)? What are the problems with TTP? (3 points) Ans: Using Caesar cipher algorithm and key value = 4, encrypt the plain text “Network Security”. Show your work.          (3 points) Ans: Let k be the encipherment key for a Caesar cipher. The decipherment key differs; it is 26 - k. One of the characteristics of a public key system...
Try to make it as simple as you can and explain as much as it needed....
Try to make it as simple as you can and explain as much as it needed. Define Integrity and Nonrepudiation? (2 points) Ans: What are the differences between Stream Cipher and Block Cipher? (2 points) Ans: What is Access Control and why is it important? (2 points) Ans: Message Authentication Code ensures authentication or integrity or both? Justify and explain your answer. (3 points) Ans: What are the weaknesses of DES? Why triple DES is better than Double DES? (3...
Try to make it as simple as you can and explain as much as it needed....
Try to make it as simple as you can and explain as much as it needed. Define Integrity and Nonrepudiation? (2 points) Ans: What are the differences between Stream Cipher and Block Cipher? (2 points) Ans: What is Access Control and why is it important? (2 points) Ans: Message Authentication Code ensures authentication or integrity or both? Justify and explain your answer. (3 points) Ans: What are the weaknesses of DES? Why triple DES is better than Double DES? (3...
Try to make it as simple as you can and explain as much as it needed....
Try to make it as simple as you can and explain as much as it needed. What are the differences between symmetric encryption and asymmetric encryption? (1 point) Ans: What is pseudo random numbers? (1 point) Ans: What is Moore’s Law? (1 point) Ans: What are four different block cipher modes? (1 point) Ans: What is one-time pad? (1 point) Ans:
Try to make it as simple as you can and explain as much as it needed....
Try to make it as simple as you can and explain as much as it needed. What is Trusted Third Party (TTP)? What are the problems with TTP? (3 points) Ans: Using Caesar cipher algorithm and key value = 4, encrypt the plain text “Network Security”. Show your work.          (3 points) Ans: Let k be the encipherment key for a Caesar cipher. The decipherment key differs; it is 26 - k. One of the characteristics of a public key system...
Try to make it as simple as you can and explain as much as it needed....
Try to make it as simple as you can and explain as much as it needed. Define Integrity and Nonrepudiation? (2 points) Ans: What are the differences between Stream Cipher and Block Cipher? (2 points) Ans: What is Access Control and why is it important? (2 points) Ans: Message Authentication Code ensures authentication or integrity or both? Justify and explain your answer. (3 points) Ans: What are the weaknesses of DES? Why triple DES is better than Double DES? (3...
Try to make it as simple as you can and explain as much as it needed....
Try to make it as simple as you can and explain as much as it needed. Define Integrity and Nonrepudiation? (2 points) Ans: What are the differences between Stream Cipher and Block Cipher? (2 points) Ans: What is Access Control and why is it important? (2 points) Ans: Message Authentication Code ensures authentication or integrity or both? Justify and explain your answer. (3 points) Ans: What are the weaknesses of DES? Why triple DES is better than Double DES? (3...
Try to make it as simple as you can and explain as much as it needed....
Try to make it as simple as you can and explain as much as it needed. What are the differences between symmetric encryption and asymmetric encryption? (1 point) Ans: What is pseudo random numbers? (1 point) Ans: What is Moore’s Law? (1 point) Ans: What are four different block cipher modes? (1 point) Ans: What is one-time pad? (1 point) Ans:
Try to make it as simple as you can. You need to do some research on...
Try to make it as simple as you can. You need to do some research on different types of cryptography libraries in Python. Find out how can we use cryptography libraries in Python. Write down the steps to install the cryptography library in Python. Write a small program to encrypt and decrypt a message using the Python library.
Try to make it as simple as you can. Please provide the answers with some examples...
Try to make it as simple as you can. Please provide the answers with some examples as fast as you can. 11-Which of the following do all domains in the same forest have in common? (Choose all that apply.) a) The same domain name    b) The same schema c) The same user accounts    d) The same global catalog   12-Which of the following is a valid reason for using multiple forests? a) Centralized management     b) Need for different schemas c) Easy...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT