CN101504711A - Movable storage device and method for controlling computer data downloading - Google Patents
Movable storage device and method for controlling computer data downloading Download PDFInfo
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- CN101504711A CN101504711A CNA2009100806962A CN200910080696A CN101504711A CN 101504711 A CN101504711 A CN 101504711A CN A2009100806962 A CNA2009100806962 A CN A2009100806962A CN 200910080696 A CN200910080696 A CN 200910080696A CN 101504711 A CN101504711 A CN 101504711A
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Abstract
The invention discloses mobile storage equipment and a mobile storage method for controlling computer data downloading. The equipment comprises a USB interface used for inserting into a USB socket of a computer, a readable/writable storage module connected with the USB interface, and a control module connected with the USB interface and the storage module, wherein the control module is used for executing judgment of external connection and internal connection of the computer and setting a storage region state of the storage module according to a judgment result; when the control module judges that the computer is an external network computer, the storage region state of the storage module is set as readable/writable; and when the control module judges that the computer is an internal network computer, the storage region state of the storage module is set as read-only. The equipment can automatically change the read/write access permission of the storage region according to networking types of the computer. Therefore, the equipment can be used as ordinary mobile storage equipment on the external network computer, and can also be used as unidirectional mobile storage equipment on the internal network computer.
Description
Technical field
The present invention relates to the Apparatus and method for that the control computer data are downloaded, particularly the movable storage device and the method for the download of control inner net computer data.
Background technology
The making rapid progress of computer technology, computer network development, popularizing day by day of electronic office make global IT application become the megatrend of human development, and government and the enterprises and institutions data more than 80% leave in the computing machine with electronic format.Enjoying the information-based convenience of bringing and while efficiently, the security of information also is on the hazard, and so-called information leakage deliberately or is by accident detectd receipts exactly, intercepted and captured, steals, analyzes, collects the information in the system, particularly secret information and sensitive information, thus the leakage of a state or party secret caused.Specifically, the installation anti-virus software causes the virus attack loss or divulges a secret to have terminal computer not have in time, not having timely installation system patch to cause the malicious code invasion to cause divulges a secret, and the internal staff consciously or unconsciously divulges a secret, external staff's malice is stolen etc., bring all potential safety hazards to important information, especially for the entity and individual that privacy requirements is arranged, the assurance important information does not leak by any approach and becomes the most basic Security Target.
More Intranet unit has carried out physical isolation with inner net computer and internet at present, to prevent the leakage of Intranet information.But in real work; information on the internet need be taken on the inner net computer through regular meeting and to be used; the main mode of recommending is that needs are imported to the file logging of inner net computer to CD at present; then CD is taken on the inner net computer and used, to prevent that data on the inner net computer are by bootlegging.This method has guaranteed the safety of Intranet information to a certain extent, but it is not too convenient to use, and cost higher (at every turn all wanting recording disk), therefore do not obtain really using widely, thus need provide a kind of method can be safely, easily internet information is imported inner net computer.
Summary of the invention
The purpose of this invention is to provide a kind of movable storage device that the unidirectional control computer data that import to inner net computer of information are downloaded.
Another object of the present invention provides a kind of method of utilizing movable storage device control computer data of the present invention to download.
According to a first aspect of the invention, the movable storage device that the control computer data that provided are downloaded comprises:
Be used to insert the USB interface of the USB socket of computing machine;
The read-write memory module that connects described USB interface;
The control module that connects described USB interface, described memory module is used for that object computer outreaches, inline judgement, and the storage area state of described memory module is set according to judged result.
Computing machine described here outreaches, inline judgement is meant, judges that computing machine is to connect outer net or connection Intranet.Therefore, the computing machine that the present invention will connect outer net is referred to as the outer net computing machine, and the computing machine that connects Intranet is referred to as inner net computer.
Wherein, when described control module judged that described computing machine is the outer net computing machine, the storage area state of described memory module was set to read-write;
Judging described computing machine when described control module is inner net computer, and the storage area state of described memory module is set to read-only.
Wherein when described control module connects described computing machine by USB interface, by to the connection situation of external nameserver or according to the whether identical judgement of carrying out Intranet or outer net computing machine of the return address after a plurality of domain name mappings.
The movable storage device that control computer data of the present invention are downloaded also comprises a usb hub, and wherein said control module is connected USB interface with memory module by described usb hub.
Wherein said control module comprises: be solidified with and realize that computing machine outreaches, first flash memory of inline judgement, memory module read and write access control of authority functional software; Move the described software that solidifies in the described flash memory, object computer outreaches, first controller of inline judgement, memory module read and write access control of authority.
Wherein said memory module comprises: the second read-write flash memory; And second controller of controlling the described second flash reading and writing access rights.
Wherein, described memory module also comprises: the single-chip microcomputer that off line is wiped described second flash memory; And off line is to the battery of single-chip microcomputer and the power supply of second flash memory.
Single-chip microcomputer is set and, can guarantees under off-line state, second flash memory to be wiped to the battery of single-chip microcomputer and second flash memory power supply.
First controller of wherein said control module connects second controller of described memory module, and it is carried out electric Loading Control, so that described second controller is switched on or switched off and being connected of usb hub.Wherein under the state that described second controller disconnects with described usb hub is connected, finish erase operation to described second flash memory by a hand switch.
According to a second aspect of the invention, the method for utilizing above-mentioned movable storage device control computer data to download that is provided may further comprise the steps:
When movable storage device is inserted into the USB socket of computing machine, movable storage device by its control module object computer outreach, inline judgement, and the storage area state of the memory module of described movable storage device is set according to judged result.
Wherein, when described control module judged that described computing machine is the outer net computing machine, the storage area state of described memory module was set to read-write;
When described control module judged that described computing machine is inner net computer, the storage area state of described memory module was set to read-only.
Wherein said control module is by to the connection situation of external nameserver or according to the whether identical judgement of carrying out Intranet or outer net computing machine of the return address after a plurality of domain name mappings.
The present invention has following technique effect:
1, can change the read and write access authority of movable storage device automatically according to the networking type of computing machine, can guarantee data can only one-way transmission in inner net computer, thereby prevent that intranet data from leaking;
2, under off-line state, Flash to memory module wipes by manual control, thisly memory module is carried out physical erase by off line, rather than online format (it being formatd processing) by computing machine, can thoroughly eliminate with may have in the memory module such as the viral communication of wooden horse hidden danger to inner net computer.
Below in conjunction with accompanying drawing principle of the present invention, details are elaborated.
Description of drawings
Fig. 1 has shown the theory structure of movable storage device of the present invention, and the movable storage device that these control computer data are downloaded comprises:
Be used to insert the usb 1 of the USB socket of computing machine 5;
The read-write memory module 3 that connects described usb 1;
The control module 2 that connects described usb 1 is used for that object computer outreaches, inline judgement, and according to judged result the storage area state of described memory module 3 is set, and in an example, described storage area can be FLASH.
When described control module 2 judged that described computing machine 5 is the outer net computing machine, the storage area state of control module 2 described memory modules 3 was set to read-write, thereby can equally use this memory module 3 to normal memory;
When described control module 2 judges that described computing machine 5 is an inner net computer, the storage area state of control module 2 described memory modules 3 is set to read-only, computing machine can only read the data in the memory module 3 like this, and data can not be write in the memory module 3, thereby avoid the inner net computer leakage of data.
Computing machine is inline, outreach deterministic process can be: when described control module 2 connects described computing machine 5 by usb 1, control module 2 is initiated the connection to external nameserver immediately, judges that thus this computing machine is inner net computer or outer net computing machine.If be connected to external nameserver, judge that then computing machine 5 is outer net computing machines; Get nowhere if connect, judge that then computing machine 5 is inner net computer.
Computing machine is inline, outreach deterministic process can also be: when described control module 2 connects described computing machine 5 by usb 1, a plurality of domain names are resolved, whether identical according to described a plurality of domain name addresses of returning after resolving then, carry out the judgement of Intranet or outer net computing machine.If a plurality of domain name addresses differences judge that then computing machine 5 is outer net computing machines; If a plurality of domain name addresses are identical, judge that then computing machine 5 is inner net computer.
Fig. 2 has shown an embodiment of the movable storage device that the control computer data are downloaded, in this embodiment, usb 1 is used to connect the USB socket of computing machine 5, and movable storage device of the present invention also comprises a usb hub 4, and wherein said control module 2 is connected usb 1 with memory module 3 by described usb hub 4.
In the embodiment shown in Figure 2, control module 2 comprises: be solidified with and realize that computing machine outreaches, first flash memory (FLASH) 22 of inline judgement, memory module read and write access control of authority functional software; First flash memory 22 only provides working procedure, does not have write-in functions.
Move in the described flash memory 22 the described software that solidifies, object computer outreaches, first controller 21 of inline judgement, memory module read and write access control of authority.First controller 21 can be made of microcontroller, and it connects parts such as usb hub 4, first flash memory 22 by universal I/O port.
In the embodiment shown in Figure 2, memory module 3 comprises:
The second read-write flash memory 32, it can be the FLASH in the common U disk;
Control second controller 31 of the described second flash reading and writing state.Second controller 31 can be made of microcontroller, and it connects parts such as usb hub 4, second flash memory 32 by universal I/O port;
Carry out the single-chip microcomputer 33 that off line is wiped;
Give the battery 34 of single- chip microcomputer 33 and 32 power supplies of second flash memory.
In order to realize the storage area state setting to memory module 3, the instantiation that the read and write access authority is set of the present invention is to utilize API (application programming interface) interface function to change the read and write access authority of the logical partition of second flash memory 32.
On the other hand, 21 pairs second controllers of second controller 32 carry out electric Loading Control, so that described second controller 31 is switched on or switched off and being connected of usb hub 4.Under described second state that controller 31 disconnects with described usb hub 4 is connected, action by a hand switch, 34 pairs of described single-chip microcomputers 33 of described battery and described second flash memory 32 are powered, and finish erase operation to described second flash memory 32 by the single-chip microcomputer 33 of described memory module 3, so that thoroughly remove the virus that may exist in second flash memory 32.
Fig. 3 has shown the detailed process that realizes movable storage device control computer data download method, and this method starts from step 300.In step 301, the user inserts movable storage device of the present invention in the USB socket of computing machine.In step 302, the software application of first controller 21 by solidifying in operation first flash memory 22 in the movable storage device judges that computing machine 5 outreaches computing machine or inline computing machine.If judging computing machine 5 is to outreach computing machine, then the storage area state of the memory module of movable storage device is set to read-writely in step 303, and just the read and write access authority of second flash memory 320 is set to read-write.If judging computing machine 5 is inline computing machines, then the storage area state of the memory module of movable storage device is set to read-onlyly in step 304, and just the read and write access authority of second flash memory 32 is set to read-only.This method ends at step 305,
An important feature of the present invention is, when movable storage device of the present invention inserts computing machine, judge at first whether this computing machine is inner net computer, judgement time was no more than for 3 seconds, after finishing judgement, storage area can represent with the form of movable storage device and be used by the user on computers.
Another important feature of the present invention is, utilizes the application program of 22 li of first flash memories in the control module 2 that the read and write access authority of the second flash memory logical partition is controlled.
Another important feature of the present invention is under off-line state, by manual control second flash memory 32 of memory module 3 to be wiped.This be because, when movable storage device uses, may catch virus in the outer net computing machine, as trojan horse, second flash memory is carried out physical erase by off line, can thoroughly eliminate inner net computer catch virus hidden danger.This wipes the format that is different under the on line state, but powers by 34 pairs of described single-chip microcomputers 33 of described battery and described second flash memory 32, and finishes erase operation to described second flash memory 32 by the single-chip microcomputer 33 of described memory module 3.After thorough removing of data quilt that is kept on the flash memory 2, can not be by the data of physical erase by any Reading and writing instrument or software rejuvenation.
In addition, when carrying out after off line wipes, storage area if will reuse storage area, must use the recovery instrument that provides that storage area is recovered with unavailable, makes it return to original state.
The recovery instrument can be mounted in the recovery software on the end host of appointment.If flash memory 2 is wiped through off line, can insert this to movable storage device of the present invention so and be equipped with on the main frame that recovers software, the storage area to memory module 3 carries out initialization again.
The present invention can use in the following manner:
1. the user application software of realizing the inventive method at first is installed on terminal computer.
2. after the movable storage device that control computer data of the present invention are downloaded is connected to certain USB interface of computing machine, the automatic pop-up window dialog box of computing machine meeting, the storage area state of prompting movable storage device is read-write or read-only, after prompting is finished, storage area shows on computers with the form of movable storage device, uses for the user.If computing machine has been forbidden the automatic playing function of moveable magnetic disc, then need manually to move the program among the CD-ROM.
Although above the present invention is had been described in detail, the invention is not restricted to this, those skilled in the art of the present technique can carry out various modifications according to principle of the present invention.Therefore, all modifications of doing according to the principle of the invention all should be understood to fall into protection scope of the present invention.
Claims (10)
1, a kind of movable storage device of control computer data download comprises:
Be used to insert the USB interface (1) of the USB socket of computing machine (5);
The read-write memory module (3) that connects described USB interface (1);
The control module (2) that connects described USB interface (1) is used for that object computer outreaches, inline judgement, and the storage area state of described memory module (3) is set according to judged result.
2, the movable storage device of control computer data download according to claim 1, wherein when described control module (2) connects described computing machine (5) by USB interface (1), by to the connection situation of external nameserver or according to the whether identical judgement of carrying out Intranet or outer net computing machine of the return address after a plurality of domain name mappings.
3, the movable storage device of control computer data download according to claim 1 and 2 also comprises a usb hub (4), and wherein said control module (2) is connected USB interface (1) with memory module (3) by described usb hub (4).
4, the movable storage device downloaded of control computer data according to claim 3, wherein said control module (2) comprising: be solidified with and realize that computing machine outreaches, first flash memory (22) of inline judgement, memory module read and write access control of authority functional software; Move the described software that solidifies in the described flash memory (22), object computer outreaches, first controller (21) of inline judgement, memory module read and write access control of authority.
5, the movable storage device of control computer data download according to claim 4, wherein said memory module (3) comprising:
Read-write second flash memory (32); And
Control second controller (31) of described second flash memory (32) read-write state.
6, the movable storage device of control computer data download according to claim 5, wherein said memory module (3) also comprises:
The single-chip microcomputer (33) that off line is wiped described second flash memory (32); And
Off line is to the battery (34) of single-chip microcomputer and the power supply of second flash memory.
7, the movable storage device of control computer data download according to claim 5, first controller (21) of wherein said control module (2) connects second controller (31) of described memory module (3), it is carried out electric Loading Control, so that described second controller (31) is switched on or switched off and being connected of usb hub (4).
8, the movable storage device of control computer data download according to claim 7, wherein under the state that described second controller (31) disconnects with described usb hub (4) is connected, after the action by a hand switch, described battery (34) is powered to described single-chip microcomputer (33) and described second flash memory (32), and finishes erase operation to described second flash memory (32) by the single-chip microcomputer (33) of described memory module (3).
9, a kind of method of utilizing each movable storage device control computer data of aforesaid right requirement 1-8 to download may further comprise the steps:
When movable storage device is inserted into the USB socket of computing machine (5), movable storage device by its control module (2) object computer outreach, inline judgement, and the storage area state of the memory module (3) of described movable storage device is set according to judged result;
Wherein, when described control module (2) was judged described computing machine (5) for the outer net computing machine, the storage area state of described memory module (3) was set to read-write;
Judging described computing machine (5) when described control module (2) is inner net computer, and the storage area state of described memory module (3) is set to read-only.
10, method according to claim 9, computing machine outreaches wherein said control module (2), inline judgement by initiating the connection of external nameserver carried out; Perhaps
Whether described control module (2) by resolving a plurality of domain names and identical according to a plurality of addresses of returning after resolving, carries out that computing machine outreaches, inline judgement.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910080696A CN100583119C (en) | 2009-03-26 | 2009-03-26 | Mobile memory and method for controlling data download of computer |
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| CN200910080696A CN100583119C (en) | 2009-03-26 | 2009-03-26 | Mobile memory and method for controlling data download of computer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404161A (en) * | 2010-09-14 | 2012-04-04 | 北京哈工大计算机网络与信息安全技术研究中心 | Method and universal serial bus (USB) equipment for detecting secret leakage |
| CN103051593A (en) * | 2011-10-12 | 2013-04-17 | 国民技术股份有限公司 | Method and system for secure data ferry |
| CN105657508A (en) * | 2016-01-20 | 2016-06-08 | 上海战诚电子科技股份有限公司 | Flash memory data processing method for television board card |
| CN109074455A (en) * | 2016-04-25 | 2018-12-21 | 横河电机株式会社 | Erasing apparatus |
| CN110941582A (en) * | 2019-11-08 | 2020-03-31 | 浪潮(北京)电子信息产业有限公司 | USB bus structure of BMC chip and communication method thereof |
| CN113344163A (en) * | 2021-05-24 | 2021-09-03 | 南通大学 | Mobile memory and method for realizing one-way data transmission based on NFC |
| CN113505403A (en) * | 2021-01-26 | 2021-10-15 | 南通大学 | One-way data transmission removable memory and method |
| CN113780509A (en) * | 2021-03-12 | 2021-12-10 | 南通大学 | Proximity switch-based memory and method for secure data transmission |
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2009
- 2009-03-26 CN CN200910080696A patent/CN100583119C/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404161A (en) * | 2010-09-14 | 2012-04-04 | 北京哈工大计算机网络与信息安全技术研究中心 | Method and universal serial bus (USB) equipment for detecting secret leakage |
| CN102404161B (en) * | 2010-09-14 | 2015-05-20 | 北京哈工大计算机网络与信息安全技术研究中心 | Method and universal serial bus (USB) equipment for detecting secret leakage |
| CN103051593A (en) * | 2011-10-12 | 2013-04-17 | 国民技术股份有限公司 | Method and system for secure data ferry |
| CN103051593B (en) * | 2011-10-12 | 2016-09-14 | 国民技术股份有限公司 | A kind of method and system of ferrying data safely |
| CN105657508A (en) * | 2016-01-20 | 2016-06-08 | 上海战诚电子科技股份有限公司 | Flash memory data processing method for television board card |
| CN105657508B (en) * | 2016-01-20 | 2018-08-07 | 上海战诚电子科技股份有限公司 | Television board flash memory data processing method |
| CN109074455A (en) * | 2016-04-25 | 2018-12-21 | 横河电机株式会社 | Erasing apparatus |
| CN110941582A (en) * | 2019-11-08 | 2020-03-31 | 浪潮(北京)电子信息产业有限公司 | USB bus structure of BMC chip and communication method thereof |
| CN113505403A (en) * | 2021-01-26 | 2021-10-15 | 南通大学 | One-way data transmission removable memory and method |
| CN113780509A (en) * | 2021-03-12 | 2021-12-10 | 南通大学 | Proximity switch-based memory and method for secure data transmission |
| CN113780509B (en) * | 2021-03-12 | 2024-01-12 | 南通大学 | Memory and method for data security transmission based on proximity switch |
| CN113344163A (en) * | 2021-05-24 | 2021-09-03 | 南通大学 | Mobile memory and method for realizing one-way data transmission based on NFC |
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| CN100583119C (en) | 2010-01-20 |
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