1. Using a ROT-5 cipher encrypt the following plaintext. Prove your answer by sh
ID: 3623860 • Letter: 1
Question
1. Using a ROT-5 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 ROT-3 cipher decrypt the following ciphertext.
WKHF RUYH WWHL VUHG
2. Using a rail fence cipher with a depth of 2 encrypt the following message:
The bird is a raven
Using a rail fence cipher with zig zag pattern and a depth of 3 decrypt the following message:
MAEKN ETTHPRAOEM ETATP
Prove both of your answers by showing the steps involved in encryption/decryption and the steps involved in reversing what you are being asked for.
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.
a. What technique is used to exchange messages between two parties ensuring confidentiality? Discuss.
b. What technique is used to exchange messages between two parties ensuring authenticity? Discuss.
c. What technique is used to exchange messages between two parties ensuring integrity? Discuss.
4. 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 could hashing be used to ensure that a file you have copied from a website has been completely and accurately copied?
Explanation / Answer
4. 1) 1110111101110 AND 0101011101001 = 0100011101000 2) 1110111101110 OR 0101011101001 = 1111111101111 3) 1110111101110 XOR 0101011101001 = 1011100000111 I hope this will helps to You !Related Questions
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