Blockchain Based Data Integrity Security Management

Blockchain is current demanding technology in the field of data and information security. In this paper, we present a model of the data integrity assurance by the use of blockchain. Our proposed method, the message authentication code is stored under the block of blockchain with hash value, timestamp, and nonce. The existing message authentication code, SHA-256 is used to generate the hash value to store into the blockchain after encrypting by asymmetric key cryptography with recipient public key. We also compared the strength of our blockchain based data integrity assurance method with others existing method of integrity assurance and management. We have applied penetration testing by using five different tools to test the strength and robustness of proposed method of integrity assurance. It is found that blockchain based integrity assurance method is more robust than other methods of integrity assurance.