Harrisburg University Computer Science Classical Cyphers Questions

User Generated

1arrquryc

Computer Science

Harrisburg University of Science and Technology

Description

Question 1

Demonstrate your understanding of classical cipher like Caesar Cipher - its process and security value.

Question 2 

Describe the Kerckhoff's Principle of Cryptosystem.

Question 3

What are the challenges of key crytosystem?

Explanation & Answer:
3 Questions 4 Pages
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Explanation & Answer

Attached.

Running Head: CLASSICAL CYPHERS

Classical Cyphers

Student’s Name
Institution Affiliation
Date

CLASSICAL CYPHERS
2

Question 1
Classical cipher is an ancient and simplest form of encrypting a specific message. It is
also referred to as shift cipher, which is widely known as an encryption technique. Classical
cipher is a type of substitution ciphers that involves replacements of any letter in the original
message. This only happens when the letter corresponds to a particular number of letters that are
shifted down or up in the alphabet. Its process involves shifting each letter of the plaintext by a
specific number of letters applying in the opposite direction. For instance, using a shift of
number 2, letter B can be replaced by letter C, and the technique repeats itself. However, it is
named after a man by the name Julius Caesar who used this technique as a way of
communication to his generals. Through this technique, the message that was initially simple to
read ends up becoming in a way that cannot be understood easily. However, the structure of the
original plaintext will remain intact, making the encryption procedure vulnerable to frequency
analysis (Siambaton, 2016). Thus, classical cipher is a vital technique that can be used for
security purposes in communication or storing relevant data.
The security of this technique is enhanced when the plain text data is converted from
simple form to unreadable form. This enables the data to be protected from access by
unauthorized individuals or being hacked by hackers. However, the classical cipher involves two
techniques that are used for converting data into other forms, such as transposition technique and
substit...


Anonymous
I was stuck on this subject and a friend recommended Studypool. I'm so glad I checked it out!

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4

Similar Content

Related Tags