BLOCKCHAIN: MINING OF HASH FUNCTION USING POW ALGORITHM

Electronics Communication Engineering

Cryptography is an art of secret writing. Major cryptography applications are Cryptographic hash functions (message digests), block chain, MAC, digital signature and digital time stamping. The cryptographic hash work is essentially utilized for security objectives for example, credibility, computerized marks, uprightness and many more. Blockchain is a growing list of transactions record. Blockchain-based applications are covering many fields including financial services, reputation systems, Internet of Things (IoT), healthcare, asset management, Insurance, Voting and Supply chain management. In this paper, the basic structure of blockchain is presented and general steps or procedure for utilizing blockchain in health care sector for managing patients records have been discussed. The concept of mining is related to the proof-of-work consensus algorithm. Although blockchain technology faces two major problems scalability and security. This paper contains an overview of healthcare services which are used to make sure that the patient’s health management is given top priority. Federal regulations are made in the health sector in order to provide effective patient care. It affects many sectors like business, industry and financial area. Security, data sharing and Trust computation are major problems that are being faced in health care domain. The structure of blockchain procedure is defined in terms of mining of hash functions for different blocks. Proof-of –work (POW) consensus algorithm is used to find the value of hash functions, previous hash functions, digital time stamping, and nonce value for each block in terms of results. Mainly Blockchain transaction procedure is used for better security. Using Mining technique, it is proved that the proposed method performs better than the existing methods.

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