Secure computing method and device, equipment and medium

The embodiment of the invention discloses a secure computing method and device, equipment and a medium, and the secure computing method comprises the steps: receiving a confidential computing instruction, and offline an associated processor of a target processor, wherein the target processor is a processor used for executing confidential calculation, and the associated processor is a homonuclear logic processor of the target processor; placing the target processor in a confidential computing environment to cause the target processor to perform confidential computing; and after a confidential calculation completion instruction is received, enabling the associated processor to be online. 本说明书实施例公开了一种安全计算方法、装置、设备及介质，安全计算方法包括：接收机密计算指令后，下线目标处理器的关联处理器；其中，所述目标处理器为用于执行机密计算的处理器，所述关联处理器为所述目标处理器的同核逻辑处理器；将所述目标处理器置于机密计算环境，以使所述目标处理器执行机密计算；接收机密计算完成指令后，上线所述关联处理器。