Performance Test of Hash Functions in Proof of Work Schemes in Blockchain

Blockchain is a decentralized system mechanism on each node. There are many aspects required to build a good blockchain system. One of the important aspects is a hash function in cryptography. Each block generated will depend on the hash value of the previous block, and the last block in the blockchain network will become the data material to generate the next block. The speed and effectiveness of the hash function algorithm for generating a hash value in the blockchain scheme are some of the reasons why this hash function algorithm was chosen. In a block, a lot of transaction data will be recorded and then computed by the hash function algorithm to produce a block hash value. The faster the computation of the resulting hash function algorithm will maintain the stability and speed of transactions in the blockchain network. This research wants to test several hash function algorithms in a simple blockchain scheme.