What is the binary representation of the '5' character (NOT the number 5)?

C++ for Engineers and Scientists
4th Edition
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Bronson, Gary J.
Chapter5: Repetition Statements
Section: Chapter Questions
Problem 2PP: (Mechanics) The deflection at any point along the centerline of a cantilevered beam, such as the one...
icon
Related questions
Question

What is the binary representation of the '5' character (NOT the number 5)?

"Give me six hours to chop down a tree and I will spend the first four sharpening the
axe." - Abraham Lincoln
Is it ever a good idea to reuse a key in the One-Time-Pad eneryption scheme? Is it a
good idea to shoot yourself in a foot?. With a bazooka?. While seating on 10kg of
TNT?.. Before you get any ideas, no - that would be a horrible blunder, and this
project will demonstrate just how easily this scheme falls apart when the key is
reused. "Easily" here is used relatively as you will find out; this is, in fact, your first
challenging project. Make sure you give it enough attention and effort.
Knowing how the logical XOR operation works is crucial to your success - after all,
ciphertext[i] = message[i] XOR key[i]. Recall from lecture that the bit-wise XOR
operation yields a 1 when and only when the two bits are different (that is, when
either bit x is 1 or bit y is 1, but NOT both):
Bit x Bit y x XOR y
1
1
1
1
1
1
Before we get to an actual cipher, let's practice implementing XOR (Psst! These are
hints of how you should go about cracking the One-Time-Pad with key reuse *hint-
hint-wink-wink*. You should be using your helper methods from lab 1 to help you
easily convert between ASCII text strings, hex strings, and byte arrays. Keep in mind
that the XOR operator executes on the byte data type. To get binary representation of
strings in the standard ASCII 8-bit format, you can just Google the ASCII table or use
a website to translate.
Transcribed Image Text:"Give me six hours to chop down a tree and I will spend the first four sharpening the axe." - Abraham Lincoln Is it ever a good idea to reuse a key in the One-Time-Pad eneryption scheme? Is it a good idea to shoot yourself in a foot?. With a bazooka?. While seating on 10kg of TNT?.. Before you get any ideas, no - that would be a horrible blunder, and this project will demonstrate just how easily this scheme falls apart when the key is reused. "Easily" here is used relatively as you will find out; this is, in fact, your first challenging project. Make sure you give it enough attention and effort. Knowing how the logical XOR operation works is crucial to your success - after all, ciphertext[i] = message[i] XOR key[i]. Recall from lecture that the bit-wise XOR operation yields a 1 when and only when the two bits are different (that is, when either bit x is 1 or bit y is 1, but NOT both): Bit x Bit y x XOR y 1 1 1 1 1 1 Before we get to an actual cipher, let's practice implementing XOR (Psst! These are hints of how you should go about cracking the One-Time-Pad with key reuse *hint- hint-wink-wink*. You should be using your helper methods from lab 1 to help you easily convert between ASCII text strings, hex strings, and byte arrays. Keep in mind that the XOR operator executes on the byte data type. To get binary representation of strings in the standard ASCII 8-bit format, you can just Google the ASCII table or use a website to translate.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Random access
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
C++ for Engineers and Scientists
C++ for Engineers and Scientists
Computer Science
ISBN:
9781133187844
Author:
Bronson, Gary J.
Publisher:
Course Technology Ptr
Fundamentals of Information Systems
Fundamentals of Information Systems
Computer Science
ISBN:
9781305082168
Author:
Ralph Stair, George Reynolds
Publisher:
Cengage Learning
A+ Guide To It Technical Support
A+ Guide To It Technical Support
Computer Science
ISBN:
9780357108291
Author:
ANDREWS, Jean.
Publisher:
Cengage,