Data processing device and data processing method thereof

A data processing device and data processing technology, applied in the field of information security, can solve the problem that the data processing device cannot guarantee the security of data transmission, and achieve the effect of ensuring security

Inactive Publication Date: 2012-01-04
FEITIAN TECHNOLOGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing data processing device cannot guarantee the security of data transmission on the public network, the present invention provides a data processing device and its data processing method

Method used

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  • Data processing device and data processing method thereof
  • Data processing device and data processing method thereof
  • Data processing device and data processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] see figure 1 , Embodiment 1 of the present invention provides a data processing method of a data processing device, and the specific steps are as follows:

[0070] Step 101: establish a connection with the host computer and perform initialization;

[0071] Specifically, the data processing device establishes a connection with the host computer through a USB interface;

[0072] Step 102: Declare to the upper computer that it is a device conforming to the CCID interface standard;

[0073] Wherein, the data processing device can declare itself as a device conforming to the CCID interface standard in the form of a device type descriptor, specifically including: the data processing device sends a CCID type device descriptor to the host computer, and the host computer receives the CCID type device description After the identifier, according to the device descriptor of the CCID type, identify the device to establish a connection with it as a CCID device;

[0074] Step 103: ...

Embodiment 2

[0135] see Image 6 , Embodiment 2 of the present invention provides a data processing device, the data processing device includes: a USB interface module 201, a first communication module 202, a first judgment module 203, an analysis module 204, a second judgment module 205, a dynamic password Module 206, processing module 207, encryption module 208, decryption module 209, group package module 210, the third judging module 211, the second communication module 212, card slot module 213, power supply module 214; The concrete functions of above-mentioned each module are as follows:

[0136] USB interface module 201: connected to the first communication module 202, used for establishing a connection between the data processing device and the host computer;

[0137] The first communication module 202: connected with the USB interface module 201, the first judging module 203, and the grouping module 210, for receiving the data sent by the upper computer to the data processing devic...

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Abstract

The invention discloses a data processing device and a data processing method thereof, belonging to the field of information security. The data processing device comprises an interface module, a receiving module, an acquisition module, an encryption sending module, a generation sending module, a decryption module, a card slot module and a power supply module. The working method comprises the steps of: establishing a connection between the device and an upper computer; declaring to the upper computer that the device is in accordance with the CCID (chip card interface device) interface standard; receiving a BULK_OUT data packet; acquiring the types of a CCID command according to the byte of the CCID command in the BULK_OUT data packet, wherein the types of the CCID command comprise a data encryption command, an acquisition encryption result command and a data decryption command; executing the corresponding operation according to the types of the CCID command; and returning the corresponding response to the upper computer.

Description

technical field [0001] The invention relates to the field of information security, in particular to a data processing device and a data processing method thereof. Background technique [0002] The CPU card is also called a smart card. The integrated circuit in the card has a microprocessor CPU, a storage unit (including random access memory RAM, program memory ROM, user memory EEPROM) and a chip operating system COS. The CPU card equipped with COS is equivalent to a microcomputer, which not only has the function of data storage, but also has the functions of command processing and data security protection. [0003] The use of smart cards requires a corresponding terminal tool that supports smart card operations, that is, a data processing device. The data processing device provides an economical, safe and universal interface for smart cards and computers. The powerful software is compatible with various existing and upcoming smart cards, operating systems and industrial API...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32
Inventor 陆舟于华章
Owner FEITIAN TECHNOLOGIES
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