Current Optics and Photonics

Optical Society of Korea (한국광학회)
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Privacy Information Protection Applying Digital Holography to Blockchain

  • Jeon, Seok Hee (Department of Electronic Engineering, Incheon National University) ;
  • Gil, Sang Keun (Department of Electronic Engineering, The University of Suwon)
  • Received : 2022.07.20
  • Accepted : 2022.09.14
  • Published : 2022.10.25
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Abstract

Blockchain technology provides a decentralized and peer-to-peer network, which has the advantages of transparency and immutability. In this paper, a novel secure authentication scheme applying digital holography to blockchain technology is proposed to protect privacy information in network nodes. The transactional information of the node is chained permanently and immutably in the blockchain to ensure network security. By designing a novel two-dimensional (2D) array data structure of the block, a proof of work (PoW) in the blockchain is executed through digital holography technology to verify true authentication and legal block linkage. A hash generated from the proposed algorithm reveals a random number of 2D array data. The real identity of each node in the network cannot be forged by a hacker's tampering because the privacy information of the node is encrypted using digital holography and stored in the blockchain. The reliability and feasibility of the proposed scheme are analyzed with the help of the research results, which evaluate the effectiveness of the proposed method. Forgery by a malicious node is impossible with the proposed method by rejecting a tampered transaction. The principal application is a secure anonymity system guaranteeing privacy information protection for handling of large information.

Keywords

Acknowledgement

This work was supported by an Incheon National University (International Cooperative) Research Grant in 2020.

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