Data processing method for USB equipment and USB equipment

A data processing and USB interface technology, applied in the field of data processing, can solve the problems of high heat generation and high price and cost

Pending Publication Date: 2017-01-18
WATCHDATA SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a data processing method of a USB device and the USB device, which can not only solve the problem...

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  • Data processing method for USB equipment and USB equipment
  • Data processing method for USB equipment and USB equipment

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Embodiment Construction

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0060] In the following embodiments, the host computer refers to a computer that can directly issue manipulation instructions, but is not limited thereto. A USB device (USB Key) is a hardware device with a USB interface. Wherein, the USB device is connected with the host computer through the USB interface.

[0061] The USB device in the embodiment of the present invention is a USB device with multiple security chips. Concurrent operations are realized through multiple security chi...

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Abstract

The embodiment of the invention discloses a data processing method for the USB equipment. The USB equipment is connected with an upper computer through a USB interface and comprises a main control chip and a plurality of security chips. The method comprises the following steps: after receiving an instruction from the upper computer, the main control chip determines one of the security chips to be a secure chip for executing the instruction and transmits the instruction to the security chip executing the instruction; and after receiving the instruction, the security chip used for executing the instruction executes the instruction. The concurrent operation is implemented through the plurality of security chips, the arithmetic speed of a cryptographic algorithm is increased, and meanwhile, the additional problems of high cost or high calorific value are also avoided.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a data processing method of a USB device and the USB device. Background technique [0002] A USB device (USB Key) is a hardware device with a 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] The application of USB Key as the carrier of digital certificates in the field of PKI (Public Key Infrastructure) is becoming more and more common. It has expanded from online banking to other applications, such as online tax declaration and other scenarios that require batch signatures. Due to the limit...

Claims

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Application Information

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IPC IPC(8): G06F21/34G06F13/42
CPCG06F13/4295G06F21/34
Inventor 陈国
Owner WATCHDATA SYST
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