Falcon anti-quantum attack scheme based on 8-qubits channel RSP

Quantum secure communication is divided into two key branches: quantum teleportation and quantum state remote preparation. The objective of quantum state remote preparation is to leverage classical communication and quantum entanglement for creating known quantum states at remote locations. Given that these known quantum states encompass amplitude coefficients, transmitting them over classical channels poses a security risk. This proposed solution emulates a scenario of three-party controlled remote preparation involving sender Alice, receivers Bob and Charlie, and controller Eve sharing an 8-bit quantum transmission channel. The plan entails preparing a dual quantum transmission channel at Bob and a triple quantum transmission channel at Charlie, followed by employing linear independent measurements and single quantum measurements, respectively. This approach effectively facilitates a positive operation at the receiving end to restore the original quantum state, ensuring secure quantum transmission. Furthermore, the solution integrates the Falcon post-quantum encryption algorithm for identity authentication on the amplitude coefficients, thereby thwarting potential information theft and tampering by malicious third parties. Through security analysis, efficiency comparisons, and validation via quantum simulators and Falcon code experiments, this solution notably enhances the efficiency of quantum state remote preparation while upholding performance integrity on classical channels. By enabling secure transmission on the channel, it enhances resilience against intermediary attacks.