High-performance password card security management method, device and system

The embodiment of the invention provides a high-performance password card security management method, device and system, and relates to the technical field of network security. When the request message is received, the host acquires the current service load of each password card; based on the current service load capacity of each password card and the data volume of the data to be processed indicated by the slave request message, determining the data volume needing to be processed by each password card; and sending the data corresponding to the data volume required to be processed by the password card in the data to be processed through the DMA channel between the password card and each password card, and calling the logic processing core in the password card to carry out service processing on the received data when each password card receives the data sent by the host. Therefore, the processing performance of the password card can be fully utilized, and the data processing efficiency is improved. 本申请实施例提供了一种