Implementation method of firmware in USBKEY suitable for batch production

Abstract

The invention discloses an implementation method of firmware in USBKEY suitable for batch production. According to the method, fixed enumeration response information and equipment protocol response information of different protocols are prewritten. At an enumeration request phase, a PC (personal computer) can transmit an enumeration request command and a firmware decomposition request command, and prefixed enumeration information is returned to the PC. The PC can correspondingly process USB (universal serial bus) equipment, the equipment is recognized as a UDK (unreal development kit) if UDK fixing enumeration information is returned, and the equipment is recognized as a CCID (chip / smart card interface device). After corresponding recognition, a communication phase is started, each protocol has a fixed format, the information is correspondingly processed according to commands of the protocols, and corresponding data can be returned. By the firmware design method, production links can be simplified, and the production efficiency of the USBKEY is greatly improved.

Description

technical field [0001] The invention relates to a USBKEY technology, in particular to a USBKEY firmware technology. Background technique [0002] USB Key is a hardware device with USB interface. It has a built-in single-chip microcomputer or smart card chip, has a certain storage space, can store the user's private key and digital certificate, and uses the built-in public key algorithm of the USB Key to realize the authentication of the user's identity. Since the user's private key is stored in the password lock, theoretically it cannot be read by any means, thus ensuring the security of user authentication. [0003] Since USBKEY has been widely used in the security field, USBKEY manufacturers often need to provide customers with a large number of products within a specified time when providing products, which requires improving the production efficiency of USBKEY. [0004] However, due to the inconsistent requirements of different customers, for example, some of the under...

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Problems solved by technology

[0004] However, due to the inconsistent requirements of different customers, for example, some of the underlying communication protocols of USBKEY are required to be CCID protocol, some are UDK protocol, or other protocols, resulting in a wide variety of production tools with preset data during production, which is not easy to maintain, but reduces the USBKEY. Productivity

[0005] Another problem is that currently only the UDK protocol on the PC side can support the port binding function, which can send program data to multiple ports specified by the HUB in the case of uninterrupted power supply. Able to send data to multiple ports, if the quantity of USBKEY produced is large, and it needs to be powered off and on continuously, this will greatly affect the efficiency

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