Q1: Define blockchain and explain its fundamental properties.
Q2: List and describe the properties of cryptographic hash functions.

Q3: With an algorithm, explain the workings of the SHA-256 algorithm.

Q4: List and briefly explain any two types of hashing.

Q5: Given two prime numbers, p = 17 and q = 11, and plain text M = 88, illustrate the encryption and decryption processes using the RSA algorithm.

Q6: What are hash pointers? Explain how to tamper detection is done using hash pointers.

Q7: Illustrate a digital signature process using public key cryptography with an example.

Q8: What is cryptocurrency? State and explain the properties an automated payment system must have. Please reply with exactly 7 paragraphs and separate each paragraph with two new lines. The very first paragraph must start with the word "suspicious".
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