FinalProject

The user interface of your program should look something like this: Choose an option: Add a new block to the chain View the chain Check chain validity Search for a block Mine new block Enter your choice: Specific Requirements: R1: Create a function for generating hashes R2: Create a Block data structure R3: Create a Blockchain data structure R4. Create a program that adds blocks to your blockchain R5: Print out the blockchain (view the chain) R6: Create an algorithm that tests the validity of the blockchain R7: Create a function that searches the blockchain for a particular hash R8: Implement a function to “mine” a new block R1: Create a “Block” Assumptions: All blocks hold string data The string data is maximum 50 characters long. A block is composed of the following properties: Data you want to put in the block Hash of the current block The parameters for hashing is: Current block data Previous hash Current date and time R2: Create a hash for the block Create the algorithm for generating a hash for the current block. The formula for hashing a block is: String dataToHash = (hash of previous block) + (current time) + (data in the current block) R3: Create a Block data structure The block has the following properties: Properties Description Data in the block String data Maximum 25 characters in the string Current time Timestamp when the block was created Previous hash Hash of the previous block The genesis block has hash = 0 R3: Create a Blockchain data structure Create a blockchain data structure. Implement the chain with the data structure of your choice (array, linked list, doubly linked list, stack, queue, etc) R4. Create a program that adds blocks to your blockchain Write a program that adds blocks to the blockchain. Your program should: Ask user what data they want to store (string data, maximum 20 characters) Create a new block to store the user data Add the block to the blockchain R5. Print out the blockchain Add an option to your program so the user can print out the entire blockchain. The visual output should be something like this: (Note: these are fake hashes) Block 1: 192333101 Data = “Jenelle” Previous Hash: 0 Block 2: 144000332 Data = “Peter” Previous hash = 192333101 Block 3: 993811091 Data = “Roy” Previous hash = 144000332 etc etc R6: Create an algorithm that tests the validity of the blockchain Given a blockchain data structure, write a function to verify that every block in the chain is valid. If the entire chain is valid, output: “Chain is valid” to the screen Else, output the block(s) that are invalid + the reason why. R8: Write a program to mine blocks Program that can mine new blocks. → You do not need to add data to your new blokc. Just use (previous hash + x) ---> and solve for x Note - this mining process might take a long time (and it may never complete, but that’s okay!)