METHOD, DEVICE, AND SYSTEM FOR IMPROVING NETWORK SECURITY

摘要

Disclosed are a method, a device, and a system for improving network security. The method for improving network security comprises: a network manager receiving a certificate message reported by a network element; the network manager generating a first list; when determining that a certificate corresponding to certificate information in the first list needs to be revoked, the network manager generating a certificate revocation request file according to the certificate information, and removing the certificate information in the first list from the first list; and the network manager sending the certificate revocation request file to a public key infrastructure (PKI) system. By means of the method of the embodiment, a device certificate in a network can be automatically revoked, which lowers the risk of manual revocation mistakes, and improves network security. Also disclosed are a device and a system for improving network security.