Secured Quantum Image Communication Using New Two Dimensional Chaotic Map Based Encryption Methods

A chaos-based cryptosystem requires an extremely nonlinear chaotic map with many chaotic regions. Quantum computers efficiently provide speed and security in image communication. A new two-dimensional triangle function combined with a discrete chaotic map (2D-TFCDM) is proposed in this research. The generated map is tested on various grounds such as attractor plot, bifurcation diagram, sensitivity test, Lyapunov exponent, 0–1 Test, permutation entropy and National Institute of Standards and Technology (NIST) test suite. The proposed map combined with the Secure Hash Algorithm (SHA) is utilised in image cryptography applications. Furthermore, the encrypted image is communicated by the novel enhanced quantum representation (NEQR) method using the qasm_simulator of IBM quantum computer (Qiskit) to utilise the benefits of the laws of physics to secure data. The numerical analyses are done, and simulation results are compared with recent techniques that depict the effectiveness of the image encryption method in resisting various attacks.