Providing Security in Genesis and Other Blocks of Blockchain Technology Using SHA256 Algorithm

The term Blockchain is familiar to everyone in the world, it is an immutable, decentralized with peer to peer network and distributed hyper ledger system. So no one can tamper or hacking this transactions easily. In the world various types of blockchain methods are used that are private bockchain public blockchain and hybrid blockchain. Now these methods are implemented in all organizations for security reasons, e.g. Crypto currency, logistic, education and economic etc. The blockchain allows all types of transactions and data to be more secure. Decentralized hyper digital ledger is used to securely record transactions on the blockchain network using a hash function that should be consistency. These data transactions are completed with a consensus algorithm called Proof of Work (PoW) and Proof of Stake (POS) with the help of hash function related algorithm SHA256. In this paper, we are going to explain how to provide security in genesis node, subsequent nodes and Markel tree construction of blockchain using SHA-256 algorithm, cryptography and hash functions and implementation of security in all level of Blockchain using SHA-256.