What technique is used to exchange messages

Assignment Help Computer Networking
Reference no: EM13850882

1. Using a ROT5 cipher encrypt the following plaintext. Prove your answer by showing the steps for both the encryption and decryption.

Meet at the baseball field at three oclock

Using a ROT3 cipher decrypt the following ciphertext.

WKHF RUYH WWHL VUHG

2. Following are two problems using a rail fence cipher. Prove both of your answers by showing the steps involved in encryption/decryption. As [art of this problem you must also show the steps involved in reversing what you are being asked for.

Using a rail fence cipher with a depth of 2 encrypt the following message:

The bird is a raven

Reverse the steps to decrypt your answer and explain the steps.

Using a rail fence cipher with zig zag pattern and a depth of 3 decrypt the following message:

MAEKN ETTHPRAOEM ETATP

Reverse the steps to encrypt your answer and explain the steps.

3. This is a three part question. For each part the answer requires identifying an asymmetric encryption technique, hashing or both. As part of each question you need to discuss the technique to demonstrate your understanding of how the functionality (confidentiality, authenticity, integrity) is supported. You need to discuss the details of what the sender and receiver do and the key usage if applicable.

What technique is used to exchange messages between two parties ensuring confidentiality? Discuss.

What technique is used to exchange messages between two parties ensuring authenticity? Discuss.

What technique is used to exchange messages between two parties ensuring integrity? Discuss.

4. Logical operations. Neatly align your result under the operands.

Perform a logical AND on the following two binary strings:
1110111101110
0101011101001

Perform a logical OR on the following two binary strings:
1110111101110
0101011101001

Perform a logical XOR on the following two binary strings:
1110111101110
0101011101001

5. How can hashing be used to ensure that a file you have copied from a website has been completely and accurately copied? You should consider techniques that are in current use today for copying images and other files from servers. Provide some details with your explanation.

Reference no: EM13850882

Questions Cloud

Leading employees to achieve organizational objectives : Directing - Motivating and leading employees to achieve organizational objectives. Once the organization has been staffed, management must direct the employees. Directing is motivating and leading employees to achieve organizational objectives
Advantages and disadvantages of investing in a mutual fund? : advantages and disadvantages of investing in a mutual fund?
Briefly explain why two bonds that have an equal ytm : Briefly explain why two bonds that have an equal YTM
How the effectiveness of individual performance-related pay : Write a report advising the organisation whether and how the effectiveness of this individual performance-related pay scheme can be improved.
What technique is used to exchange messages : What technique is used to exchange messages between two parties ensuring confidentiality? Discuss.  What technique is used to exchange messages between two parties ensuring authenticity? Discuss.
Compare various issues of building security into a system : Compare and contrast the various issues of building security into a system from the initial implementation versus adding security to an existing system. Discuss the problems and issues of one approach versus the other
What is the probability that a randomly selected female : Human heights are known to be normally distributed.  Men have a mean height of 70 inches and females a mean height of 64 inches.  Both have a standard deviation of 3 inches. What is the probability that a randomly selected female is above 70 inches..
How magic kitchens should proceed : Your job is to recommend how Magic Kitchens should proceed. Describe the key issues that need to be addressed if Magic Kitchens are to remain a viable business
Identification of correct disorder : G.C. is a 78-year-old widow who relies on her late husband's Social Security income for all of her expenses. Identification of correct disorder. Description of at least two (2) major causes of the identified disorder. Identification/definition of man..

Reviews

Write a Review

Computer Networking Questions & Answers

  The advantages and disadvantages of social networking

Analyze how the university might integrate at least two social media and networking technologies to accomplish their goals. Your analysis must cover the advantages and disadvantages of social networking. The president of the university also needs ..

  Q1 distinguish between packet switching and circuit

q1. distinguish between packet switching and circuit switching give three advantages and three disadvantages of each

  Time taken by material to be transmitted over t facility

Assume the material is to be transmitted over  T-1 facility (1.544 Mbps). How long will it take, exclusive of overhead, to transmit volume?

  Draw a diagram showing the sliding window and pointer

After b. the source receives acknowledgment of receipt of byte 300 and an announcement of a new window size of 300 bytes. Draw a diagram showing the sliding window and pointer at the source.

  Identify impediments to successfully cybersecurity program

Outline the steps you recommend and identify any impediments to successfully implementing the suggested cybersecurity program.

  Compare to the minimum recommendations for windows

Identify the professor type, processor speed, RAM, and hard disk space - How do these results compare to the minimum recommendations for Windows?

  Question 1a describe what a turtle shell architecture is

question 1a describe what a turtle shell architecture is and give an instance.b briefly clarify the principle of least

  Use the internet to choose four usb drives which support

use the internet to select four usb drives that support hardware encryption. create a table that compares all four and

  Express internet access technologies

Based on your table, select a preferred supplier and briefly explain the reasons for your selection. [Up to 100 words]

  What is the purpose of our dropping the transmit power

In your opinion, what is the purpose of our dropping the transmit power to such a low level? What do access point connectivity statistics collected for the roaming station show

  Depict a network topology graphical model

Depict a network topology graphical model of the initial environment of 10 employees using Visio or its open source alternative software. Note: The graphically depicted solution is not included in the required page length.

  Attacking more than just the enterprise

Suppose you are a security director for a consulting firm that implements, secures, investigates, and supports point-of-sale (POS) for small and medium businesses (SMBs) in the retail industry.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd