Matrix Character Relocation Technique for Improving Data Privacyin Shard-Based Private Blockchain Environments


KIPS Transactions on Computer and Communication Systems, Vol. 11, No. 2, pp. 51-58, Feb. 2022
https://doi.org/10.3745/KTCCS.2022.11.2.51,   PDF Download:
Keywords: Blockchain, data privacy, Hash Algorithm, Shard
Abstract

Blockchain technology is a system in which data from users participating in blockchain networks is distributed and stored. Bitcoin and Ethereum are attracting global attention, and the utilization of blockchain is expected to be endless. However, the need for blockchain data privacy protection is emerging in various financial, medical, and real estate sectors that process personal information due to the transparency of disclosing all data in the blockchain to network participants. Although studies using smart contracts, homomorphic encryption, and cryptographic key methods have been mainly conducted to protect existing blockchain data privacy, this paper proposes data privacy using matrix character relocation techniques differentiated from existing papers. The approach proposed in this paper consists largely of two methods: how to relocate the original data to matrix characters, how to return the deployed data to the original. Through qualitative experiments, we evaluate the safety of the approach proposed in this paper, and demonstrate that matrix character relocation will be sufficiently applicable in private blockchain environments by measuring the time it takes to revert applied data to original data.


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Cite this article
[IEEE Style]
Y. K. Lee, J. W. Seo, S. Y. Park, "Matrix Character Relocation Technique for Improving Data Privacyin Shard-Based Private Blockchain Environments," KIPS Transactions on Computer and Communication Systems, vol. 11, no. 2, pp. 51-58, 2022. DOI: https://doi.org/10.3745/KTCCS.2022.11.2.51.

[ACM Style]
Yeol Kook Lee, Jung Won Seo, and Soo Young Park. 2022. Matrix Character Relocation Technique for Improving Data Privacyin Shard-Based Private Blockchain Environments. KIPS Transactions on Computer and Communication Systems, 11, 2, (2022), 51-58. DOI: https://doi.org/10.3745/KTCCS.2022.11.2.51.