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
CN102307100AInactive Publication Date: 2012-01-04FEITIAN TECHNOLOGIES
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
FEITIAN TECHNOLOGIES
Publication Date
2012-01-04
Estimated Expiration
Not applicable Β· inactive patent

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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.
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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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