A Quantum Image Secret Sharing Scheme Based on Designated Multi-Verifier Signature

This paper presents a quantum image secret sharing scheme based on designated multi-verifier signature. First, k$k$ share images are generated by a 2D hyperchaotic system incorporating sinusoidal mapping, Henon mapping, and Cubic mapping using the cascade modulation method. Quantum Arnold scrambling and diffusion are performed on the secret image. Subsequently, the concept of designated multi-verifier signature is introduced. In the secret image sharing phase, the pixel values of the share images are used to sign the secret image, and the signed secret image and k$k$ share images are sent to a trusted third party and k$k$ designated verifiers, respectively. In this scheme, no carrier images are required, and the share images held by the participants do not contain any information about the secret image. Finally, simulation experiments and security analysis are conducted on IBM Qiskit platform and Matlab software. To tackle the challenge of safeguarding image information in quantum image secret sharing, where shadows could inadvertently reveal clues to attackers, this paper introduces a fresh approach grounded in designated multi-verifier signatures. The simulations showcase how this new scheme tightens the security, making it harder for unauthorized parties to sneak a peek at the hidden images. By weaving in multi-verifier signatures, the scheme not only keeps the image data secure but also ensures that only the right people can verify and access it, all while maintaining a smooth and seamless flow of information. image