Construction of quantum error-correcting codes for quantum cryptography

量子密码学原则上不能被破解。与RSA密码系统相比，这是一个很大的优势，如果对手拥有一台强大的计算机，RSA密码系统就可以被破解。虽然量子密码学是安全的，但其密钥生成率很小。本研究的目的是构造更高密钥率的量子密码学。研究项目由两个步骤组成。在第一步中，我们研究扩展的CSS码的性质和译码，在第二步中，我们使用在第一步中获得的结果来构造更高的密钥率协议。不幸的是，我们还没有证明该协议的安全性。

Quantum cryptography cannot be broken in principle. This is a big advantage over the RSA cryptosystem that can be broken if an adversary has a powerful computer. Although quantum cryptography is secure, its key generation rate is small. The aim of this research is to construct higher key rate quantum cryptography. The research project consists of two steps. In the 1^<st> step we investigate properties and decoding of the enlarged CSS code and in the 2^<nd> step we use the results obtained in the 1^<st> step to construct a higher key rate protocol. Unfortunately, we have not yet proved the security of the protocol.