Key escrow method and device and computer-readable storage medium

The present invention discloses a key escrow method. The method comprises a step of receiving a key escrow request sent by a key custodian and acquiring a custodian identity identifier and an asymmetric key to be escrowed carried in the key escrow request, a step of verifying the custodian identity identifier and the asymmetric key to be escrowed, and a step of storing the custodian identity identifier and the asymmetric key to be escrowed into a front-end escrow system of a blockchain participants when the verification is passed. The invention also discloses a key escrow device and a computer-readable storage medium. The usage threshold of a blockchain application can be reduced, and the quick promotion of a blockchain application deployed by other participants of the blockchain is facilitated. 本发明公开了种密钥托管方法，该方法包括：接收密钥托管方发送的密钥托管请求，获取所述密钥托管请求中携带的托管方身份标识和待托管的非对称密钥；对所述托管方身份标识和所述待托管的非对称密钥进行校验；在校验通过时，将所述托管方身份标识和所述待托管的非对称密钥保存至区块链参与方的前置托管系统中。本发明还公开了种密钥托管设备和种计算机可读存储介质。本发明能够降低区块链应用的使用门槛，便于区块链的其他参与方将自己部署的区块链应用快速推广。