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Data encrypting and deciphering method of data storing device with laminated storing structure

A technology of data storage device and encryption method, which is applied in the direction of electronic digital data processing, digital data processing parts, preventing unauthorized use of memory, etc., and can solve the problem of poor security, no encryption, decryption device and hierarchical storage structure And other issues

Inactive Publication Date: 2007-05-30
先锋全球投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the storage methods, capacity, and volume of existing memories are different, they are not partitioned according to the level of data access, so data can only be stored in the same memory
In addition, none of the existing portable flash storage devices is equipped with encryption, decryption devices and hierarchical storage structures, so the security of the use is poor

Method used

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  • Data encrypting and deciphering method of data storing device with laminated storing structure
  • Data encrypting and deciphering method of data storing device with laminated storing structure

Examples

Experimental program
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Embodiment Construction

[0030] Fig. 1 is a system structure block diagram, and portable data storage is provided with a communication interface 10, and this device is connected with a host computer through communication interface, and host computer can carry out two-way communication with data processing unit 9, and data processing unit and access control decision-making The unit 6, the primary data storage unit 7 and the secondary data storage unit 8 communicate. The access control decision unit communicates with the protection key processing unit 4 and receives its input signals.

[0031] The protection key processing unit performs two-way communication with the encrypted smart key storage unit 5, and communicates with the data and decision-making unit 3 and receives its input signal for access to the first-level or second-level hierarchical memory and communication interface.

[0032] The data and decision unit 3 communicates with the host computer 11 and receives its key input, or receives its ke...

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PUM

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Abstract

A data storage device consists of a communication interface, microcontroller, one stage storage and two stages storage device, data processing unit, data decision unit, protective cipher key processing unit, access control-decision unit and storage unit for enciphering intelligent cipher key. Its enciphering and deciphering method includes generating a protective cipher key instructed, carrying out cipher key access only by enciphered instructor and deciphering it by data processing unit.

Description

technical field [0001] The invention relates to a data storage device, in particular to a data encryption and decryption method of a portable data storage device with a hierarchical storage structure. Background technique [0002] People know that memory is an important part of electronic computers, and it can be divided into internal memory, external memory, mobile memory and other types. Existing mobile storage includes mobile hard disk and smaller portable flash memory. Although the storage methods, capacities, and volumes of existing memories are different, they are not partitioned according to the level of data access, so the data can only be stored in the same memory. In addition, none of the existing portable flash storage devices is provided with encryption, decryption devices and hierarchical storage structures, so the security of use is relatively poor. Contents of the invention [0003] The present invention aims to solve the above-mentioned problems, and prov...

Claims

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Application Information

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IPC IPC(8): G06F1/00G06F12/14
Inventor 林文南
Owner 先锋全球投资有限公司