USB storage device based on hardware encryption

A hardware encryption, storage device technology, applied in the direction of preventing unauthorized use of memory, etc., to achieve the effect of fast reading and writing speed, large capacity, and preventing leakage

Active Publication Date: 2011-04-06
国核信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many loopholes in this technology. For example, unauthenticated users can obtain all files in the hidden encryption area through low-level disk access (read / write to memory sectors)

Method used

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  • USB storage device based on hardware encryption
  • USB storage device based on hardware encryption
  • USB storage device based on hardware encryption

Examples

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Embodiment Construction

[0018] For ease of description, the drawings only show the relevant parts of the embodiments of the present invention. Such as figure 1 As shown, the USB storage device includes a USB interface module 1 , a USB switch 2 , a CPU module, a storage control module 4 and a Flash memory 5 . The DIN input terminal of the USB switch is composed of D+ and D- two pins, the DOUT1 output terminal is composed of 1D+ and 1D- two pins, the DOUT2 output terminal is composed of 2D+ and 2D- two pins, and the CONTROL control terminal is composed of S and OE two pins, such as figure 2 shown. CPU module 3 comprises microprocessor unit and its peripheral chip module 301, the USB interface 302 of CPU module, the IO interface 303 and the IO interface 303 of CPU module. 2 C bus interface 304, the microprocessor unit and its peripheral chip module 301 are respectively connected with the USB interface 302 of the CPU module, the IO interface 303 and the I of the CPU module. 2 The C bus interface 304...

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Abstract

A USB storage device based on hardware encryption belongs to the computer technical field and mainly solves the problem that the encryption performance of the existing USB storage device is low. The USB storage device comprises a USB interface module, a USB switch, a CPU module, a storage control module and a Flash memory, wherein the CPU module is used to control the USB switch to switch the USB interface module and the CPU module and the data transmission of the storage control module; and the connection control of the USB storage device hardware and the control of read-write limit can be realized through user authentication. In the USB storage device of the invention, the USB switch and the CPU module are added on the basis of the traditional USB storage device and a Z8HM2 memory main-control chip is adopted, thus the user identity can be verified and the login information of the user can be stored; and the hardware can be used to encrypt a file written in the storage device, thus preventing that the right file can be obtained from the memory through the mode of low-level disk access.

Description

technical field [0001] The invention relates to a storage device, in particular to a USB storage device based on hardware encryption. Background technique [0002] At present, the storage device based on the USB interface can not only provide users with a large storage space but also has the characteristics of fast speed and plug-and-play. It has won the favor of the majority of users and has become a common device for users to exchange and store data. However, the hardware circuit of the existing USB storage device is mainly composed of a storage controller and a memory. The computer can directly perform file read / write operations on the storage device, but the identity of the user of the storage device is not verified, and there is no The stored files are encrypted more effectively. If the storage device is lost or stolen, the confidential files in it will be leaked. [0003] Equally, the existing encryption processing technology for stored files only uses software to div...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/14
Inventor 李岩赵世柏程艳磊张恩忠
Owner 国核信息科技有限公司
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