PERFORMANCE ANALYSIS OF BIGDATA SECURITY IN BLOCKCHAIN TECHNOLOGY
K Kaviya, T. Sangeetha, P. Avinash · 2025
In today's digital age, it is common for parties to exchange sensitive information. Banking information, insurance data, and health records are just a few instances of sensitive data or documents that necessitate a digital interchange. In many circumstances, the transaction takes place between unidentified and untrustworthy persons. As a result, executing the data exchange using a fair nonrepudiation protocol is critical. Nonrepudiation is indisputable proof of one's accountability for the veracity of whatever data he shares/receives in digital communication. This is usually accomplished via the use of a cryptographic digital signature. Neither side can deny that their digital signature is legitimate in this situation. At every point throughout the exchange process, the protocol meets the fairness property if and only if it does not provide the sender any benefits over the receiver or vice versa. In many applications, combining fair exchange and non-repudiation for digital trade is crucial, and it may be obtained with or without the use of a trusted third party (TTP). Fairness becomes probabilistic without TTP's participation, and TTP's inclusion might lead to excessive dependency on the third party. In many applications, a peer-to-peer (P2P) fair nonrepudiation protocol that does not rely on a trusted third-party is desired. The blockchain network is built in such a manner that it can manage a trust less environment while still delivering the proper result. As a result, if the exchanges are conducted using Blockchain, genuine fairness will be ensured, and none of the parties would have to deal with the problem of trust. An ever-increasing amount of sensitive patient information is shared between healthcare institutions.The proposed methodology is experimentally tested and validated with the existing techniques regarding encryption time, decryption time, throughput, delay, and overall processing time.