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USB digital signature device and its operation method

A technology of digital signature and operation method, which is applied in the direction of electronic digital data processing, computer security device, user identity/authority verification, etc., to achieve the effect of preventing attacks

Inactive Publication Date: 2008-09-10
阎琳 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The present invention aims to provide a USB digital signature device and its operating method, which is used to solve the problem in the prior art that an intruder breaks into a USB digital signature device from an external user device

Method used

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  • USB digital signature device and its operation method
  • USB digital signature device and its operation method
  • USB digital signature device and its operation method

Examples

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Embodiment Construction

[0036] figure 1 Shown is a structure diagram of a USB digital signature device with a password keyboard according to an embodiment of the present invention, which includes a USB interface 10 for connecting external user equipment; a smart card 40 for verifying the user equipment; also includes : a keyboard 30, which is built in a USB digital signature device, is connected to the controller 20, and forwards the key input received from the user about the verification request to the smart card 40; the controller 20, which is connected to the keyboard 30, the USB interface 10 and the The smart card 40 controls the operation of the keyboard 30 , the USB interface 10 and the smart card 40 and forwards data streams between them.

[0037] Since the device transfers the information input function from the general-purpose PC keyboard to the proprietary keyboard with USBKey independent kernel control, when the user needs to input key transaction data (such as account number, amount and P...

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PUM

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Abstract

The invention provides a USB-digital signature device and an operation method thereof, wherein, the device comprises a USB interface and an intelligent card. The USB interface is used for connecting external user equipments; the intelligent card is used for checking the user equipments. The USB-digital signature device is characterized in that: the USB-digital signature device is also provided with a built-in keyboard and a controller; the built-in keyboard is connected to the controller and used for transmitting the received key input concerning checking requests from users to the intelligent card; the controller is connected with the keyboard, the USB interface and the intelligent card and is used for controlling the working and data flow transmission among the keyboard, the USB interface and the intelligent card. The USB-digital signature device and the operation method of the invention improve the safety of the USB-digital signature device.

Description

technical field [0001] The invention relates to computer encryption, in particular to a USB digital signature device and its operating method. Background technique [0002] With the development of the Internet and the wide application of Internet banking, e-commerce, and e-government, digital certificate technology, smart card technology and USBKey (USB key) based on PKI (Public Key Infrastructure) are widely used in various industries and region. More and more Internet users accept and use USBKey as a device for identity authentication and digital signature. [0003] PKI digital certificate technology is a new security technology, which is composed of basic components such as public key cryptography technology, digital certificate, certificate issuing authority (CA) and public key security policies. Communication PKI is an infrastructure to ensure the security of network communications and online transactions. It is a system that uses public key technology to realize e-co...

Claims

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Application Information

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IPC IPC(8): H04L9/32G06F21/00G06F21/85
Inventor 阎琳李爱珍付强
Owner 阎琳
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