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Multiple Image Encryption Using Hadamard Codes in Fast Fourier Transform-Based Encryption Scheme

  • Journal of Software Forensics
  • Abbr : JSF
  • 2026, 22(2), pp.67~77
  • DOI : 10.29056/jsf.2026.06.07
  • Publisher : Korea Software Assessment and Valuation Society
  • Research Area : Engineering > Computer Science
  • Received : June 1, 2026
  • Accepted : June 20, 2026
  • Published : June 30, 2026

SONG JAE HUN 1

1경기과학기술대학교

Accredited

ABSTRACT

Rapid growth in the IT industry has increased reliance on digital technologies, leading to escalating security threats such as data leakage and unauthorized duplication. Consequently, effective information security technologies have become increasingly important for ensuring the integrity and confidentiality of transmitted data. This study proposes a multiple-image encryption scheme using Hadamard codes in a Fast Fourier Transform (FFT)-based optical encryption system. By incorporating Hadamard-code multiplexing into the high-speed FFT optical encryption framework, the proposed method enables selective decryption of target images, thereby improving data management efficiency. In addition, the cryptographic performance of the proposed scheme is validated through correlation coefficient analysis of the original, encrypted, and decrypted images.

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