Earn Higher Grades With Instant Assignment Help.Ask Question!

Python Programming
(5/5)

The aim of this lab is to check the validity of the Blockchain. Calculate Hash independently and compare it with stored hash to ensure there is no tampering in the data

INSTRUCTIONS TO CANDIDATES
ANSWER ALL QUESTIONS

Part 1:

The aim of this lab is to check the validity of the Blockchain. Follow the steps mentioned below:

1- Check Hash Values of all linked blocks, and make sure every block is linked with next.

2- Calculate Hash independently and compare it with stored hash to ensure there is no

tampering in the data.
Tips:

  1. Create class Block and class Blockchain, as mentioned in Lab1.

  2. Create class ChainValidation. In this class, create two functions: head_check() and

integrity_check().

The head_check() function should see and compare the

hashes of each block and see if the previous hash value mentioned in this block header

matches with the actual hash value of the previous block.

If the hashes are not matching,print the message that Blockchain not linked properly, else print that Blocks are linkedproperly.

The integriy_check()function calculate hash independently and compare

it with stored hash to ensure that there is not tampering in the data

Part 2:

Using the Code from part 1.

The aim of this lab is to implement Proof-of-Work (PoW) consensus algorithm of the Blockchain.

Follow the steps mentioned below:

  1. Refer to Lab # 1, step 3, there you provided different parameters values in Blockchain

class, such as difficulty in mining, maxNonce, and target value.

  1. Using the above values, incorporate a function mine() in Blockchain class which will

implement the logic of Proof-of-Work (PoW) consensus algorithm.

For illustration purpose, see the output below, where when we increase the difficulty, the number of

hashes required to mine the block increases.

In the mine() function, you just need to implement this logic: If the value of Hash is less than target, the block is not mined, else increment the nonce and the block is mined successfully. Then print the number of hashes required to mine the block

Attachments:
(5/5)

Related Questions

Introgramming & Unix Fall 2018, CRN 44882, Oakland University Homework Assignment 6 - Using Arrays and Functions in C

DescriptionIn this final assignment, the students will demonstrate their ability to apply two ma

The standard path finding involves finding the (shortest) path from an origin to a destination, typically on a map. This is an

Path finding involves finding a path from A to B. Typically we want the path to have certain properties,such as being the shortest or to avoid going t

Develop a program to emulate a purchase transaction at a retail store. This program will have two classes, a LineItem class and a Transaction class. The LineItem class will represent an individual

Develop a program to emulate a purchase transaction at a retail store. Thisprogram will have two classes, a LineItem class and a Transaction class. Th

SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of Sea Ports. Here are the classes and their instance variables we wish to define:

1 Project 1 Introduction - the SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of

Project 2 Introduction - the SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of Sea Ports. Here are the classes and their instance variables we wish to define:

1 Project 2 Introduction - the SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of

Ask This Assignment To Be Done By Our ExpertsGet A+ Grade Solution Guaranteed

expert
joyComputer science
(4/5)
12 Answers Hire Me
expert
Robert DLaw
(4.8/5)
843 Answers Hire Me
expert
Dr Samuel BarberaStatistics
(5/5)
960 Answers Hire Me
expert
Tutor For YouEconomics
(5/5)
736 Answers Hire Me