关键词: 量子密钥分发, 量子密码网络, 公钥基础设施, 量子密钥数字证书, 对称密钥签名

Abstract: The security of classical network communication is mostly based on computational security, which is nonunconditional. The emergence of quantum key distribution (QKD) network based on physical security changes this situation. By means of quantum key distribution network generated quantum key, classical network data communication can achieve unconditional security. At present, the most effective information system authentication method is based on the identity authentication method of PKI (public key infrastructure). Its security depends on the security of public key encryption. The security of public key encryption is based on the complexity of large number decomposition. Based on the quantum cryptography network, a quantum key digital certificate system can be constructed by means of a trusted center, and a quantum key infrastructure (QKI) with quantum authentication mechanism (QCA) is established. Quantum key digital certificate in the identification and digital signature of the specific application methods.

Key words: quantum key distribution (QKD), quantum cryptography network, public key infrastructure (PKI), quantum key digital certificate, symmetric key signature