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USB interface hardware storage apparatus with log off function when missed and implementing method

A USB interface and storage device technology, applied in computer security devices, preventing unauthorized use of memory, instruments, etc., can solve problems such as USBKey access and potential safety hazards

Inactive Publication Date: 2009-07-29
BEIJING JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the current problems of access and potential safety hazards after USBKey is lost, a USBKey with lost logout function and a method for realizing lost logout are proposed

Method used

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  • USB interface hardware storage apparatus with log off function when missed and implementing method
  • USB interface hardware storage apparatus with log off function when missed and implementing method
  • USB interface hardware storage apparatus with log off function when missed and implementing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1, combining Figure 1 to Figure 6 This embodiment will be described.

[0018] A kind of USB interface hardware storage device with lost logout function, it comprises USB interface circuit 1, power supply circuit 2, logout circuit device 3, encryption CPU 4, encryption CPU peripheral circuit 5 and flash memory circuit 6, the input and output of USB interface circuit 1 end is connected with the output and input ends of power supply circuit 2, and two output ends of power supply circuit 2 are connected with two power supply input ends of cancellation circuit device 3 respectively, and the signal output terminal of encryption CPU4 is connected with the control input terminal of cancellation circuit device 3, The data input and output terminals of the encryption CPU 4 are connected with the data input and output terminals of the encryption CPU peripheral circuit 5, and the storage data input and output terminals of the encryption CPU 4 are connected with the data...

Embodiment 2

[0022] Embodiment 2, the steps of the described method for implementing lost logout are:

[0023] Step 11. Format the USBKey-A disk and USBKey-B disk with the same hardware through the client formatting tool software;

[0024] Step 12. Divide the initialized USBKey-A disk and USBKey-B disk into three areas: CD-ROM area, encrypted U disk area and hidden area, and set the authoritative USBKey logo on the USBKey-B disk to realize USBKey-B disk pairing Logout permission of USBKey-A drive;

[0025] Step 13, store the client software in the USBKey-A disk and the USBKey-B disk respectively, wherein the client software to be protected is stored in the CD-ROM area of ​​the USBKey-A disk and the USBKey-B disk, and the administrator password, Common user password and Windows login password;

[0026] Step 14. Set the USBKey-A disk authentication to boot through the client software, enter the access password to access the host, and when the USBKey-A disk is lost or canceled, the USBKey-B...

Embodiment 3

[0027] Embodiment 3, this embodiment is different from embodiment 2 in that the optical disk area is a read-only attribute; the encrypted U disk area is accessed and used through identity authentication; the hidden area is divided into unauthorized access, read-only and read-write attributes , the administrator sets the user's access authority, and the hidden area is accessed after the user logs in according to the access authority set by the administrator, which is completed through the application program interface library.

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PUM

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Abstract

The invention discloses a USB interface hardware memory device with a loss log-off function and a realization method thereof, relating to the field of computer security and solving the existing problems such as unauthorized access and the potential security hazards after the loss of a USB Key. The USB interface hardware memory device comprises a USB interface circuit, a power supply circuit, a log-off circuit device, an encrypted CPU, a CPU peripheral circuit and a flash memory circuit. A log-off circuit is designed on hardware for being capable of realizing physical log-off; and as to software, memory area can be divided into a virtual drive, a hidden area and a memory area. Client software is stored in the virtual drive and prevented from being tampered. The log-off authority of a USB Key-B disk to a USB Key-A disk is written in the interior of a USB Key CPU through upper software so as to ensure the performability of the authority and realize the pre-boot authentication of Windows simultaneously.

Description

technical field [0001] The invention relates to the field of computer security, in particular to a USB interface hardware storage device with a lost logout function and an implementation method. Background technique [0002] Office personnel in enterprises and institutions often use USBKey (USB interface hardware storage device) to realize identity authentication or remotely access the company to obtain corresponding services or upload data, etc. The existing USBKey products can solve the problem of remote access, but cannot solve the problem of USBKey loss. Post-access and security risks. Contents of the invention [0003] In order to solve the current problems of access and security risks after the USBKey is lost, a USBKey with a lost logout function and a method for implementing a lost logout are proposed. [0004] A kind of USB interface hardware storage device with lost logout function according to the present invention, comprises USB interface circuit, power supply ...

Claims

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Application Information

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IPC IPC(8): G06F21/00G06F12/14G06F21/44
Inventor 刘吉强韩磊韩臻陈雪志
Owner BEIJING JIAOTONG UNIV
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