Computer Network Security

Recall the linear cryptanalysis of TDES. Assume that equation (6.33) holds with probability (3/4)3 « 0.42. Also assume that the key satisfies fco®fci = 0. Then if we conduct the attack using 100 known plaintexts, what are the expected counts for c\ θρι = 0 and c\ Θ pio = 1? Compare your answer with the empirical results presented in the text. Why do you think the theoretical and empirical results differ?

Suppose that Bob’s knapsack public key is

Don't use plagiarized sources. Get Your Custom Essay on
Computer Network Security
Just from $13/Page
Order Essay

T = [2195,4390,1318, 2197,7467,5716,3974,3996,7551,668]

Suppose that Alice encrypts a message with Bob’s public key and the resulting ciphertext is C1 = 8155. Implement the LLL attack and use your program to solve for the plaintext P1. For the same public key, find the plaintext P2 for the ciphertext C2 = 14748. Can you determine the private key?

Place Order
Grab A 14% Discount on This Paper
Pages (550 words)
Approximate price: -
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Try it now!

Grab A 14% Discount on This Paper

Total price:

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.