System and method for information security device with compact flash interface

A system comprising a card reading apparatus and an information security device with a compact flash (CF) interface;

• wherein the card reading apparatus comprises an operation module and a reset module, the operation module being used for the host to perform a write operation or a read operation on a flash module of the information security device as normal or to perform an information security operation on an information security module of the information security device, and the reset module being used for resetting the information security device after the card reading apparatus is identified as an information security device;
• wherein the information security device comprises a control module, the flash module and the information security module;
• wherein the control module controls communication between the card reading apparatus and the information security device and determines whether the object being operated by the host with the card reading apparatus is a real section or a virtual section inside the device, wherein the real section refers to the section in the flash module of the information security device, and the virtual section is predefined in the information security module in the information security device, and controls operations and communication among all modules inside the information security device;
• wherein the flash module performs a Read operation or a Write operation on sections in the information security device;
• wherein the information security module performs an information security operation on the information security device and returns an information security operation result;
• wherein the control module comprises a determining unit for determining whether the operation performed on the information security device is an operation on the flash module or the information security module of the information security device including determining whether the object being operated by the host with the card reading apparatus is a real section or a virtual section inside the device, wherein the real section refers to the section in the flash module of the information security device;
• and
• the control module further comprises a buffer unit for buffering the information security operation result returned by the information security module, and the virtual section is predefined in the information security chip in the information security device.