Two Mark Questions
1 A: Define Cryptography.
1 B: Write the difference between Symmetric and Asymmetric ciphers.
1 C: Define Stream ciphers.
1 D: Define Block ciphers.
1 E: Name any two applications of Cryptographic Hash functions.
1 F: What are the requirements of Hash functions.
1 G: Define Smart Contract.
1 H: What is the importance of Consensus?
Five Mark Questions
SECTION - I:
2.A: Convert "MEET ME" using the Hill cipher with the 3x3 encryption key given below. Try converting the ciphertext back to the plaintext.
2.B: Discuss any two Substitution Techniques and list their merits and demerits.
(OR)
3.A: Explain the substitution ciphers - Playfair cipher and Vernam cipher.
3.B: Explain the basic principle of Rotor Machine.
SECTION - II:
4.A: Briefly explain the design principle of Block Ciphers.
4.B: Discuss in detail about DES Algorithm.
(OR)
5.A: What are the design parameters of Feistel Cipher Network?
5.B: Write the difference between ECB and CBC with neat diagram.
