SM9 key authentication method and system based on quantum key cloud, and storage medium

The invention discloses an SM9 key authentication method and system based on quantum key cloud, and a storage medium. The method comprises the following steps: obtaining an encrypted private key; decrypting the encrypted private key according to the quantum key to obtain a private key; and performing identity authentication according to the private key. According to the invention, the private keyis decrypted through the quantum key, the SM9 key generation security is improved through the randomness and distribution security of the quantum key, and the secure transmission mode of the SM9 private key is expanded through a one-time pad absolute security encryption mode. By utilizing the security and symmetry of quantum key distribution, online distribution of asymmetric keys is avoided, andthe security of private key application is improved. 本发明公开了一种基于量子密钥云的SM9密钥认证方法、系统及存储介质，所述方法包括：获取加密私钥；根据量子密钥对加密私钥进行解密，获取私钥；根据所述私钥进行身份认证。本发明通过量子密钥对私钥进行解密的应用，通过量子密钥的随机性和分发安全性，提升SM9密钥生成的安全性，并通过一次一密绝对安全的加密方式来扩展国密SM9私钥的安全传输方式。利用量子密钥