Question: 2.3 Encryption Mode - Corrupted Cipher Text (60 pts) To understand the properties of various encryption modes, we would like to do the following exercise:

2.3 Encryption Mode - Corrupted Cipher Text (60 pts) To understand

2.3 Encryption Mode - Corrupted Cipher Text (60 pts) To understand the properties of various encryption modes, we would like to do the following exercise: 1. Create a text file that is at least 64 bytes long. Please provide the file content. 2. Encrypt the file using the AES-128 cipher. The encryption mode you should use is ECB, CBC, CFB, and OFB. Now we should have four encrypted files. Please provide the commands. (10 pts) 3. Unfortunately, you just need to corrupt a single bit of the 30th byte in the encrypted files. You can achieve this corruption using ghex. Please provide the information of which bit you got flipped. 4. Decrypt the corrupted files (encrypted) using the correct key and IV. Please provide the the commands and results. (10 pts) 5. Please answer the following questions: || (1) How much information can you recover by decrypting the corrupted file, if the encryption mode is ECB, CBC, CFB, or OFB, respectively? Please answer this question before you conduct this task, and then find out whether your answer is correct or wrong after you finish this task. (20 pts) (2) Explain why. (10 pts) (3) What are the implication of these differences? (10 pts)

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Task 3: Encryption Mode Corrupted Cipher Text To understand the properties of various encryption modes, we would like to do the following exercise: 1. Create a text file that is at least 64 bytes...

Installing a hex editor: In this assignment, we need to be able to view and modify files of binary and Hex formats just as we did in lectures. You can install a binary file editor called ``bless...

4 Task 4 : Error Propagation - Corrupted Cipher Text To understand the error propagation property of various encryption modes, we would like to do the following exercise: Create a text file that is...

Task 5: Error Propagation Corrupted Cipher Text To understand the error propagation property of various encryption modes, we would like to do the following exercise: 1. Create a text file that is at...

3.3 Task 3: Corrupted Cipher Text Lab Question: Display the encrypted picture using any picture viewing software and include the screenshot in your report. Can you derive any useful information about...

Task 5 : Error Propagation Corrupted Cipher Text [ 2 points ] Tounderstand the error propagation property of various encryption modes, we would like to do the following exercise: 1 . Create a text...

Objectives 1. Working on a project that utilizes a broad spectrum of knowledge from this course 2. Using various forms of indirect addressing 3. Passing parameters on the stack 4. Extensive...

this is cryptography , please help Symmetric key cryptography provides several modes of operation, including Electronic Codebook (ECB), Cipher-Block Chaining (CBC), Cipher Feedback (CFB), Output...

In this programming assignment, you will implement Vigenere encryption and decryption with Cipher Block Chaining (CBC). The original form of Vigenere cipher has been introduced in L6: Symmetric...

Encoding messages! Caesar cipher PIC One of the most fundamental tasks in information processing is information encoding . It forms the bases of computer networks, data storage, compression (for...

Use trigonometry/parallelogram law to determine the resultant force (magnitude and direction from the positive x-axis) of the two forces. Lunits units 30 Problem 1/2 27 units

The cost management plan identifies who has no authority to approve changes to the project or its budget True or False

The financial ratios that measure a firm's ability to pay its short - term debts are called _ _ _ _ _ _ _ _ _ _ Blank ratios.

a You are employed as a food technologist in a fruit and vegetable processing company. Management would like to make avocados available for sale throughout the year and not just after the winter...

What is the difference between Needs and GAP Analyses?

What are ERP suites? Are HCMSs part of ERPs?

An economy is operating with output $400 billion below its natural rate, and fiscal policymakers want to close this recessionary gap. The central bank agrees to adjust the money supply to hold the...