研究目的
Development of an application capable of simulating the behavior of the quantum cryptography protocol E91 in a distributed environment.
研究成果
The developed application successfully simulates the E91 quantum cryptography protocol, demonstrating its potential for secure key distribution. Despite the loss of approximately 70% of the initial bits, the remaining bits form a secure shared key. The application's performance varies with the network medium, with wired connections offering better efficiency. Future work could focus on optimizing the protocol's efficiency and exploring its application in real-world quantum computing environments.
研究不足
The application is purely demonstrative and academic, simulating quantum cryptography protocols on classical computers. The performance is affected by the network medium (wired vs. wireless), and the final key length is significantly reduced due to the protocol's inherent properties.
1：Experimental Design and Method Selection:
The study involved an exhaustive investigation of quantum mechanics principles and quantum cryptographic protocols, followed by the development of a simulator application using Java RMI for distributed communication.
2：Sample Selection and Data Sources:
The application was tested with various key lengths (8, 16, 32, 64, 128, 256, 512, 1024, 2048 bits) to evaluate its performance.
3：List of Experimental Equipment and Materials:
Computers with different operating systems (Windows, Mac OS) connected via a local network (both wired and wireless) were used for testing.
4：Experimental Procedures and Operational Workflow:
The application was first tested locally, then in a distributed environment. The process involved generating entangled particles, exchanging measurement bases, and comparing results to generate a final quantum key.
5：Data Analysis Methods:
The performance of the application was evaluated based on the final key length obtained, the time taken for key generation, and the number of bits lost during the process.
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