As the usage of digital images continues to grow in most fields, safeguarding visual data against unauthorized access and tampering has gained more significance. This work proposes a novel secure image distribution and reconstruction framework through the integration of XOR-based secret sharing and robust symmetric encryption schemes. A secret image in this scheme is broken down into a number of indistinguishable shares, and each share is then password-encrypted. This multi-layered security strategy ensures that no individual share exposes any meaningful visual information. Correct restoration of the original image can only be achieved when all shares along with the relevant authentication information are made available. The architecture consists of independent modules to securely generate the keys, divide the image, and reconstruct the image. To measure performance and image recovery quality, the system is tested based on measures such as PSNR, SSIM, and entropy. The experimental results show that the given solution ensures high levels of data protection in addition to an impressive image recovery.

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Construction of Visual Cryptography Scheme on Colour Images

  • Bandlamudi Neerajakshi,
  • M. V. P. Chandra Sekhara Rao,
  • Bandaru Pravallika,
  • Popuri Srinivasarao

摘要

As the usage of digital images continues to grow in most fields, safeguarding visual data against unauthorized access and tampering has gained more significance. This work proposes a novel secure image distribution and reconstruction framework through the integration of XOR-based secret sharing and robust symmetric encryption schemes. A secret image in this scheme is broken down into a number of indistinguishable shares, and each share is then password-encrypted. This multi-layered security strategy ensures that no individual share exposes any meaningful visual information. Correct restoration of the original image can only be achieved when all shares along with the relevant authentication information are made available. The architecture consists of independent modules to securely generate the keys, divide the image, and reconstruct the image. To measure performance and image recovery quality, the system is tested based on measures such as PSNR, SSIM, and entropy. The experimental results show that the given solution ensures high levels of data protection in addition to an impressive image recovery.