CN101635018A - Method of safety ferriage of USB flash disk data - Google Patents
Method of safety ferriage of USB flash disk data Download PDFInfo
- Publication number
- CN101635018A CN101635018A CN200910092125A CN200910092125A CN101635018A CN 101635018 A CN101635018 A CN 101635018A CN 200910092125 A CN200910092125 A CN 200910092125A CN 200910092125 A CN200910092125 A CN 200910092125A CN 101635018 A CN101635018 A CN 101635018A
- Authority
- CN
- China
- Prior art keywords
- usb flash
- flash disk
- data
- write
- read
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Storage Device Security (AREA)
Abstract
The invention discloses a method of safety ferriage of USB flash disk data, which belongs to the technical field of information safety and computer software. The method realizes the data ferriage between an inner network and an outer network and is characterized in that an inner ferriage USB flash disk works in a pre-bringing-in state and a bringing-in state, wherein in the pre-bringing-in state, the inner ferriage USB flash disk can be read and written in the outer network and can not be read or written in the inner network, and in the bringing-in state, the inner ferriage USB flash disk can be read and can not be written both in the inner network and the outer network; an outer ferriage USB flash disk works in a pre-bringing-out state and a bringing-out state, wherein in the pre-bringing-out state, the outer ferriage USB flash disk can not be read or written in the outer network and can be read and written in the inner network, and in the bringing-out state, the outer ferriage USB flash disk can be read and can not be written both in the inner network and the outer network; after being approved, the inner ferriage USB flash disk and the outer ferriage USB flash disk are converted between two respective states; and the approval process comprises the step of correcting the reading and writing authority of the inner ferriage USB flash disk and the outer ferriage USB flash disk. The method can be used for the safety ferriage of data and realize the data safety interaction between the inner network and the outer network of a detail network.
Description
Technical field
It is mutual to the present invention relates to inner-external network data safety, relate in particular to the ferrying data safely method of a kind of use USB storage (hereinafter to be referred as USB flash disk), the Intranet of realization concerning security matters network and the data security of outer net are mutual, belong to information security and computer software technical field.
Background technology
The data ferry-boat is meant takes data out of external network from the internal network of isolating, or brings the data of external network into internal network.The former is called as " outwards ferry-boat " (or be called for short " outer ferry-boat "), and the latter is called " inwardly ferry-boat " (or abbreviate as " interior ferry-boat ").Under the situation that inside and outside network isolated mutually, CD burning, USB flash disk copy become the main instrument of data ferry-boat.CD burning and USB flash disk copy respectively have excellent, inferior position: come compared with CD burning, it is more simple and direct, convenient that the ferry-boat of USB flash disk seems; But the read-write property of USB flash disk has been brought a lot of potential safety hazards to ferry-boat.
One of hidden danger, different with CD, USB flash disk can write at any time.If the user is left classified papers on the USB flash disk in, in case when USB flash disk externally used, the trojan horse program on the external network spread out the classified papers in the USB flash disk with regard to having an opportunity, and causes and divulges a secret.Two of hidden danger, USB flash disk uses inside and outside intersection, is easy to infective virus, and takes virus to internal network.Three of hidden danger also is difficult to most take precautions against, and is that trojan horse program utilizes USB flash disk as springboard, by three simple steps, steals the confidential information of internal network: 1. when USB flash disk externally uses, slip into USB flash disk silently; 2. when this USB flash disk uses in inside, collect the classified papers in the internal network, it is deposited in the USB flash disk; 3. when this USB flash disk externally used, the wooden horse that resides in this USB flash disk sent to the classified papers on the USB flash disk on the destination server of appointment.This behavior of stealing secret information of trojan horse program has very strong disguise and specific aim, and its harm is very big.
In known systems, generally all be that method by hardware level realizes the read-only control to USB flash disk.For example, utility model patent " anti-ferry-boat USB flash disk storer " (200720305553.3) has installed a write-protect switch device additional on common U, the data that write in the USB flash disk is controlled, thereby solved the problem that the USB flash disk ferry-boat is divulged a secret.Yet, because its convenience, still the common U of the more uses of people, and carry out data under the situation that does not have to take precautions against through being everlasting and ferry, make internal network suffer virus attack, caused in a large number accidentally and divulged a secret, brought about great losses for Party and government offices, army and military enterprise and other enterprises and institutions, also individual privacy has been constituted a serious threat.So, provide a kind of data ferry-boat method based on USB flash disk safe, that versatility is stronger to have great and the urgent realistic meaning.
Summary of the invention
At several hidden danger above-mentioned, the object of the present invention is to provide a kind of safe data ferry-boat method based on USB flash disk.The inventive method is further utilized and is embedded in the COS program on the USB flash disk and is installed in Agent on the internal network main frame, realizes the two-way authentication of USB flash disk and internal network main frame, and finish to the read-only of USB flash disk with write control.Described COS is the abbreviation of Chip Operating System, is the operating system that is embedded in firmware in the safety chip (firm ware), based on the application program of COS exploitation the COS program.
In order to realize above-mentioned technical purpose, the present invention adopts following technical scheme.
A kind of USB flash disk ferrying data safely method, described method realize the data ferry-boat between Intranet and the outer net, it is characterized in that,
Interior ferry-boat USB flash disk works in brings and brings into state in advance into, is bringing in advance under the state, and described USB flash disk is read-write at outer net, and is not read-write in Intranet; Bringing under the state, described USB flash disk can not be write in that intranet and extranet are all readable;
Outer ferry-boat USB flash disk works in takes and takes out of state in advance out of, is taking out of in advance under the state, and described USB flash disk can not be read and write at outer net, and is read-write in Intranet; Taking out of under the state, described USB flash disk can not be write in that intranet and extranet are all readable;
The ferry-boat USB flash disk and the USB flash disk of ferrying outward change between two states separately through examining the back in described, and the described process of examining comprises the access limit of revising USB flash disk.
The described process of examining also can comprise: the file baseline of All Files on the record USB flash disk, and the virus of the All Files discovery on the deletion scanning USB flash disk.
Preferably, the present invention installs a COS program in described USB flash disk, and what described COS program obtained data reads and write request, and whether accepts the described request of reading and write according to residing duty of USB flash disk and the decision of intranet and extranet environment.
Further, after described COS program is accepted to write request, write after with data encryption by the cipher mode of setting; After described COS program is accepted to read request, read after with the ciphered data deciphering by the manner of decryption of setting.
Further, when USB flash disk was in Intranet, described COS program was only accepted the request that writes of the process set.
Preferably, install one and act on behalf of program on each main frame of Intranet, described Agent only allows to set up data through the USB flash disk of authorizing with intranet host and is connected.The described built-in COS safety chip of USB flash disk through authorizing.
Below technical solution of the present invention is described further.
The present invention is mainly based on following design:
One, reading of USB flash disk controlled.The present invention judges (such as by the COS program) to the residing intranet and extranet environment of USB flash disk, in specific, the authority that USB flash disk is only read, Viruses such as wooden horse just can not slip into USB flash disk, thereby trojan horse program also can't be write sensitive data silently and cause on the USB flash disk and divulge a secret, and has eliminated the hidden danger of divulging a secret greatly.
Two, writing of USB flash disk controlled.When carrying out the data ferry-boat, if have only dedicated process data could be write USB flash disk through checking, and this dedicated process must be operated by the user, then the pairing process of trojan horse program can not write USB flash disk with data, can not steal user right and start this process, stop the chance that trojan horse program writes USB flash disk effectively.Even have wooden horse in the environment that USB flash disk uses, also can not cause and divulge a secret.
Three, to bringing and take out of data examining into.In the use of USB flash disk, often can have a mind to by mistake sensitive data is exposed in outside unsafe environment, thereby be stolen by hacker or trojan horse program.The present invention carries out the third party to data and examines at the USB flash disk that is used for ferrying, and prevents from significant data is copied into USB flash disk, causes and divulges a secret; Even have the leakage of a state or party secret to take place, also have good grounds.
Four, distinguish the inside and outside network.Both called ferry-boat, and just should have " two sides " of ferry-boat, thereby USB flash disk ferry-boat scheme must possess the ability of distinguishing internal network and external network.Have only the differentiation internal and external environment, USB flash disk just may be provided with different reading and writing authorities in inside and outside varying environment.For example, when USB flash disk is from inside to outside ferried data, should write, otherwise USB flash disk can not have data to come at internal network; When ferrying the outside, USB flash disk should be read-only, blocks the injection silently that write permission prevents wooden horse.Vice versa.For distinguishing internal-external network, the present invention adopts following scheme: an Agent is installed, COS program of prepackage on each USB flash disk that uses in this network on every main frame in internal network.Agent on the main frame and the COS program on the USB flash disk are confirmed identity mutually by two-way authentication.Like this, not only the main frame in the internal network can be discerned legal USB flash disk and it is managed, and USB flash disk also can be made rational judgement and switch to corresponding read-write control model own residing network environment.
Use the master agent program to cause a lot of other problems, at first, need server to the Agent unified management on every main frame, unified distributing policy, the daily record on the Agent will be uploaded onto the server, and also needs a user interface to be used for the mutual or the like of people and server.Secondly, need to solve and forge Agent and server, promptly the problem of device authentication prevents the counterfeit of USB flash disk mandate, from the USB flash disk to the Agent, all needs two-way authentication from the Agent to the server, guarantees that the identity of each side is legal.Therefore, another object of the present invention is to provide a cover complete TRSM system, be used to realize above-mentioned safe ferry-boat method based on USB flash disk.
So-called TRSM is the abbreviation of English Trusted Removable Storage Management; its Core Feature is to divide the inside and outside network boundary; all USB mobile memories that use in inside are carried out lifecycle management, and storage data are thereon carried out encipherment protection.The present invention is based upon USB flash disk ferry-boat scheme on the TRSM, be because TRSM provides the ability of enough differentiation inside and outside network: the disk of authorizing through TRSM has adopted proprietary data layout, can only use in inside, can not externally use, and the data on the disk are encrypted; The disk of authorizing through TRSM can not use in inside, can only externally use.
As the USB flash disk of ferry-boat, after authorizing, adopted the proprietary data layout of TRSM through TRSM.And by the ferry-boat sign is set, system also distinguishes common U and comes with the ferry-boat USB flash disk, has only those USB flash disks that have " ferry-boat sign " just can be used as ferry-boat, and other USB flash disk cannot be used as the data ferry-boat.Simultaneity factor also stipulates to have only the special USB flash disk of the built-in COS of having safety chip just can be used for ferrying.In order to improve the security of ferry-boat, interior ferry-boat and outer ferry-boat are distinguished also by flag is set by the TRSM system, and the disk that is used as interior ferry-boat can not be used as outer ferry-boat, and vice versa.
Outer ferry-boat purpose is with the internal data outside of ferrying, for outside use.In other words, the USB flash disk of ferrying outward at first will possess the ability that obtains data internally, could arrive outside these data of using then.So the USB flash disk of ferrying outward afterwards, be actually USB flash disk and obtained the authority (USB flash disk can use arbitrarily in inside) of obtaining data internally, but at this moment this USB flash disk can't externally use immediately obtaining mandate, be set up " ferry-boat sign ".Have only when needs are ferried, through " an examining " program, the state of the USB flash disk of ferrying outward is configured to " taking state out of " afterwards, this USB flash disk externally just become readable (read-only).Like this, the data in the USB flash disk can externally have been used, and have finished data ferry-boat process from inside to outside.
The same ground, interior ferry-boat USB flash disk can not use in inside immediately, but externally can use arbitrarily obtaining mandate and " ferry-boat sign " afterwards.Have only process " to examine " program, its state is configured to " bringing state into " afterwards, and just become in inside readable (read-only), thus the realization data are inwardly ferried.
One of technique effect of the present invention is: a USB flash disk or read-write in inside, otherwise externally read-write in the network.Can not there be such USB flash disk, simultaneously all read-write in inside and outside portion.The purpose of doing like this is in order to prevent the inside and outside cross-infection, to have improved the security of data ferry-boats.
Description of drawings
Fig. 1 represents embodiment TRSM system construction drawing;
Fig. 2 represents the classification chart of USB flash disk among the embodiment TRSM;
Fig. 3 represents ferry-boat USB flash disk state transition graph in the embodiment;
Fig. 4 represents the embodiment USB flash disk state transition graph of ferrying outward;
Fig. 5 represents that the embodiment USB flash disk writes the control program surface chart.
Embodiment
Below in conjunction with accompanying drawing, describe the present invention in detail by specific embodiment.
Now the USB flash disk that uses with certain unit is example, at first a TRSM server and control desk are installed at internal network, each main frame is installed the TRSM client in the LAN (Local Area Network), form a work safety territory (internal network), the system construction drawing of this security domain as shown in Figure 1, the function of each ingredient is as follows among the figure:
TRSM client (Client) is the main frame in the internal network, installation agent program on it, and whether the disk that Agent identification is inserted has passed through mandate, if the disk through having authorized, TRSM side allows USB flash disk to insert main frame;
TRSM server (Server) is the place of data (user account number, daily record, strategy) centralized stores, is installed in independently on the server host;
The TRSM control desk (Console) provide human-computer interaction interface.
In the TRSM system, USB flash disk is divided into two big classes: unauthorized USB flash disk and mandate USB flash disk, and authorize USB flash disk to be divided into ferry-boat USB flash disk and non-ferry-boat USB flash disk again, ferry in the ferry-boat USB flash disk is divided into again USB flash disk and outer ferry-boat USB flash disk.
Complete TRSM system USB flash disk classification chart as shown in Figure 2.
Except above-mentioned " taking state out of " and " bringing state into ", the USB flash disk state difference called after that present embodiment will " be examined " before " is taken state out of " and " bringing state in advance into " in advance.The state transition graph of USB flash disk as shown in Figure 3 and Figure 4.In the ferry-boat USB flash disk externally network is read-write under the state bringing in advance, can not use at internal network, all be read-only bringing under the state at the inside and outside network; Outer ferry-boat USB flash disk is being taken out of under the state read-writely at internal network in advance, and externally network is unavailable, all is read-only taking out of under the state at the inside and outside network.
As can be seen, to " taking state out of ", or the transfer process present embodiment from " bringing state in advance into " to " bringing state into " is referred to as " examining " from " taking state in advance out of " from Fig. 3 and 4, and vice versa." examine " and comprise following three functions:
(1) sets up ferry-boat file baseline.Artificial deliberately divulging a secret accounts for the significant proportion of the leakage of a state or party secret, bribed by hostile force, more domestic lawless persons deliberately will be referred to the information of country and military secret and take out of by the USB flash disk copy, data that enterprises employee is important with company such as prescription, patented technology, customer information etc. are deliberately copied into USB flash disk, or the like.For preventing that the internal staff from deliberately divulging a secret, all files of taking out of, bring into by USB flash disk need be checked through relevant responsible official (user or the person liable that are different from USB flash disk), and set up the file baseline.The file baseline is one " snapshot " of listed files on particular point in time on the USB flash disk, comprises the details and the check information thereof of All Files on the USB flash disk.The file baseline will send to server end and preserve, so that carry out audit trail in the future.
(2) virus scan and deletion.Inspection and deletion are because a variety of causes remains in the viruses such as wooden horse on the USB flash disk.
(3) the USB flash disk access limit is set.The change of USB flash disk access limit is by the COS system special sign position (Read and Write) to be set to realize.Based on the ferry-boat USB flash disk of safety chip, writing and reading of data controlled by the COS system, after the COS system start-up, can determine its access limit according to being provided with of work at present environment and oneself state position.
Conclusion is got up, and the access limit of ferry-boat USB flash disk is nothing more than following three kinds: read-write, and read-only and denied access.
Read-write.Under this mode of operation, what the COS system accepted data writes, reads request.If write request, the COS system is responsible for data are encrypted, and is written to the corresponding memory unit; If instead be the request of reading, COS system reading of data and carry out decryption oprerations from storer.
Read-only.Under this mode of operation, the read-only flag of COS system is set to ON, and COS only operates the request of reading of data, and the refusal data write request.
Denied access (not read-write).Under this pattern, the forbidding flag of COS system is set to ON, and the COS system ignores that all write, the sense data request.
When needs when internal network is ferried data, externally control is not done in internally the ferry write operation of USB flash disk of network.Because the purpose of interior ferry-boat USB flash disk is to collect the external file inside of ferrying to use, when USB flash disk externally network use, even wooden horse writes some files of not expecting to USB flash disk, can not cause yet and divulge a secret.However, trojan horse program itself can take this opportunity to slip in the interior ferry-boat USB flash disk.When USB flash disk entered the internal network use under " bringing state into ", wooden horse had an opportunity to enter internal network, attempts to steal internal data.But the wooden horse attempt of stealing data in the present embodiment can not succeeded, and reason has two:
Interior ferry-boat USB flash disk uses in inside, must be in " bringing state into ", and at this moment USB flash disk has only read right, and wooden horse can't be taken data out of by USB flash disk.
Interior ferry-boat USB flash disk must just can be transformed into " bringing state into " through " examining " before use inside, examine in the process and will carry out virus scan to USB flash disk, in case find that viral (wooden horse) is promptly deleted.
When needs when external network is ferried data, carry out strictness control and be very important in externally the ferry write operation of USB flash disk of internal network, because USB flash disk has write permission in inside, write operation not to be controlled, wooden horse just has an opportunity silently inner sensitive data to be write USB flash disk.
Present embodiment is realized the control of writing to USB flash disk by the built-in COS program of USB flash disk.Outer ferry-boat USB flash disk has only a unique appointed process to carry out write operation to it at internal network under " taking state in advance out of ".The COS program has such function, and whether can discern from the write operation requests of client legal, and wants to write data to the storage unit of USB flash disk according to the legitimacy decision of write request.It is legal that the write operation requests of having only the user to send to USB flash disk by specific program interface (as shown in Figure 5) is only, the COS program just allows data are write in the ferry-boat USB flash disk, has guaranteed that trojan horse program can not steal user right and significant data is write USB flash disk cause and divulge a secret.Though this has changed user's use habit to a certain extent, prevented that effectively the wooden horse process from moving file to USB flash disk.
In sum, according to the needs of ferry-boat USB flash disk, present embodiment has been realized following function in the COS program:
Authority is provided with
USB flash disk places a kind of of following several states: read-only, read-write, can not be accessed.And according to the authority setting of USB flash disk, the writing, read of the data in the control USB flash disk.
" write " the request validity checking
To write data requests from main frame, judge whether from legitimate client, rather than from counterfeit client-side program.
Data write control
If but USB flash disk is configured to write state, COS will want to write data to the flash of USB flash disk according to the legitimacy decision of " writing " request.
Data encryption, deciphering
To the data that write, according to the key that is stored in the safety chip, the data that write are carried out encryption, deposit in then in the storage space of USB flash disk; The data of reading are decrypted with this key.
Claims (8)
1. USB flash disk ferrying data safely method, described method realize the data ferry-boat between Intranet and the outer net, it is characterized in that,
Interior ferry-boat USB flash disk works in brings and brings into state in advance into, is bringing in advance under the state, and described USB flash disk is read-write at outer net, and is not read-write in Intranet; Bringing under the state, described USB flash disk can not be write in that intranet and extranet are all readable;
Outer ferry-boat USB flash disk works in takes and takes out of state in advance out of, is taking out of in advance under the state, and described USB flash disk can not be read and write at outer net, and is read-write in Intranet; Taking out of under the state, described USB flash disk can not be write in that intranet and extranet are all readable;
The ferry-boat USB flash disk and the USB flash disk of ferrying outward change between two states separately through examining the back in described, and the described process of examining comprises the access limit of revising USB flash disk.
2. USB flash disk ferrying data safely method as claimed in claim 1 is characterized in that, the described process of examining also comprises the file baseline of All Files on the record USB flash disk.
3. USB flash disk ferrying data safely method as claimed in claim 1 is characterized in that, the described process of examining also comprises the virus that the All Files on the deletion scanning USB flash disk is found.
4. USB flash disk ferrying data safely method as claimed in claim 1, it is characterized in that, one COS program is installed in described USB flash disk, and what described COS program obtained data reads and writes request, and whether accepts the described request of reading and write according to residing duty of USB flash disk and the decision of intranet and extranet environment.
5. USB flash disk ferrying data safely method as claimed in claim 4 is characterized in that, after described COS program is accepted to write request, writes after with data encryption by the cipher mode of setting; After described COS program is accepted to read request, read after with the ciphered data deciphering by the manner of decryption of setting.
6. USB flash disk ferrying data safely method as claimed in claim 4 is characterized in that, when USB flash disk was in Intranet, described COS program was only accepted the request that writes of the process set.
7. USB flash disk ferrying data safely method as claimed in claim 1 is characterized in that, installs one and act on behalf of program on each main frame of Intranet, and described Agent only allows to set up data through the USB flash disk of authorizing with intranet host and is connected.
8. USB flash disk ferrying data safely method as claimed in claim 7 is characterized in that, the described built-in COS safety chip of USB flash disk through authorizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910092125A CN101635018A (en) | 2009-09-01 | 2009-09-01 | Method of safety ferriage of USB flash disk data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910092125A CN101635018A (en) | 2009-09-01 | 2009-09-01 | Method of safety ferriage of USB flash disk data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101635018A true CN101635018A (en) | 2010-01-27 |
Family
ID=41594204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910092125A Pending CN101635018A (en) | 2009-09-01 | 2009-09-01 | Method of safety ferriage of USB flash disk data |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101635018A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847190A (en) * | 2010-05-31 | 2010-09-29 | 北京测腾信息技术有限公司 | Method and system for ferrying data safely |
| CN102195951A (en) * | 2010-03-12 | 2011-09-21 | 新奥特（北京）视频技术有限公司 | Method and system for publishing program contents to external network |
| CN102196004A (en) * | 2010-03-12 | 2011-09-21 | 新奥特（北京）视频技术有限公司 | Management method and system of remote material file |
| CN102970127A (en) * | 2011-08-31 | 2013-03-13 | 上海夏尔软件有限公司 | Device and method for internetwork file ferry |
| 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 |
| CN103942502A (en) * | 2013-01-22 | 2014-07-23 | 浙江安科网络技术有限公司 | Method and device for ferry type safety data exchange |
| CN105653990A (en) * | 2014-11-11 | 2016-06-08 | 江苏威盾网络科技有限公司 | U disc data safety switching method |
| CN106844254A (en) * | 2016-12-29 | 2017-06-13 | 武汉烽火众智数字技术有限责任公司 | Mobile memory medium switching device, data ferry-boat system and method |
| CN109389998A (en) * | 2018-10-24 | 2019-02-26 | 北京星震维度信息技术有限公司 | A kind of data ferry device and method |
| CN109743297A (en) * | 2018-12-17 | 2019-05-10 | 六合远教(成都)科技有限公司 | Management service system and its working method are done in a kind of cruising |
| CN111083104A (en) * | 2019-10-31 | 2020-04-28 | 中国船舶重工集团公司第七0九研究所 | Method and system for realizing simultaneous access of host to internal and external networks |
| CN111737722A (en) * | 2020-08-21 | 2020-10-02 | 北京志翔科技股份有限公司 | Method and device for safely ferrying data between intranet terminals |
| CN113114626A (en) * | 2021-03-17 | 2021-07-13 | 宁波万德高科智能科技有限公司 | Security gateway system based on edge calculation and construction 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 |
| CN113934376A (en) * | 2021-10-22 | 2022-01-14 | 珠海全志科技股份有限公司 | External device mounting method and device and computer readable storage medium |
-
2009
- 2009-09-01 CN CN200910092125A patent/CN101635018A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195951A (en) * | 2010-03-12 | 2011-09-21 | 新奥特（北京）视频技术有限公司 | Method and system for publishing program contents to external network |
| CN102196004A (en) * | 2010-03-12 | 2011-09-21 | 新奥特（北京）视频技术有限公司 | Management method and system of remote material file |
| CN102196004B (en) * | 2010-03-12 | 2015-09-23 | 新奥特（北京）视频技术有限公司 | A kind of management method of remote material file and system |
| CN102195951B (en) * | 2010-03-12 | 2015-11-25 | 新奥特（北京）视频技术有限公司 | The method and system that a kind of programme content outer net is issued |
| CN101847190A (en) * | 2010-05-31 | 2010-09-29 | 北京测腾信息技术有限公司 | Method and system for ferrying data safely |
| CN102970127A (en) * | 2011-08-31 | 2013-03-13 | 上海夏尔软件有限公司 | Device and method for internetwork file ferry |
| 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 |
| CN103942502B (en) * | 2013-01-22 | 2018-08-31 | 浙江安科网络技术有限公司 | Ferry-boat formula secure data exchange method and device |
| CN103942502A (en) * | 2013-01-22 | 2014-07-23 | 浙江安科网络技术有限公司 | Method and device for ferry type safety data exchange |
| CN105653990A (en) * | 2014-11-11 | 2016-06-08 | 江苏威盾网络科技有限公司 | U disc data safety switching method |
| CN106844254A (en) * | 2016-12-29 | 2017-06-13 | 武汉烽火众智数字技术有限责任公司 | Mobile memory medium switching device, data ferry-boat system and method |
| CN109389998A (en) * | 2018-10-24 | 2019-02-26 | 北京星震维度信息技术有限公司 | A kind of data ferry device and method |
| CN109389998B (en) * | 2018-10-24 | 2024-04-02 | 北京星震维度信息技术有限公司 | Data ferrying device and method |
| CN109743297A (en) * | 2018-12-17 | 2019-05-10 | 六合远教(成都)科技有限公司 | Management service system and its working method are done in a kind of cruising |
| CN109743297B (en) * | 2018-12-17 | 2021-05-04 | 六合远教(成都)科技有限公司 | Patrol and office management service system and working method thereof |
| CN111083104A (en) * | 2019-10-31 | 2020-04-28 | 中国船舶重工集团公司第七0九研究所 | Method and system for realizing simultaneous access of host to internal and external networks |
| CN111737722A (en) * | 2020-08-21 | 2020-10-02 | 北京志翔科技股份有限公司 | Method and device for safely ferrying data between intranet terminals |
| CN113114626A (en) * | 2021-03-17 | 2021-07-13 | 宁波万德高科智能科技有限公司 | Security gateway system based on edge calculation and construction 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 |
| CN113934376A (en) * | 2021-10-22 | 2022-01-14 | 珠海全志科技股份有限公司 | External device mounting method and device and computer readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101635018A (en) | Method of safety ferriage of USB flash disk data | |
| CN101819612B (en) | Versatile content control with partitioning | |
| CN103065100B (en) | Container-based method of users to protect private data | |
| CN101908106B (en) | Memory system with versatile content control | |
| CN101572660B (en) | Comprehensive control method for preventing leakage of data | |
| US6212635B1 (en) | Network security system allowing access and modification to a security subsystem after initial installation when a master token is in place | |
| CN100449561C (en) | Divulging secrets prevention system of USB storage device date based on certificate and transparent encryption technology | |
| CN101120355B (en) | System for creating control structure for versatile content control | |
| US20090150631A1 (en) | Self-protecting storage device | |
| US20150227748A1 (en) | Method and System for Securing Data | |
| JP2010191946A (en) | Enforcing use of chipset key management services for encrypted storage device | |
| CN101971186A (en) | Information leak prevention device, and method and program thereof | |
| CN104318176A (en) | Terminal and data management method and device thereof | |
| CN105740725A (en) | File protection method and system | |
| CN109684866A (en) | A kind of safe USB disk system for supporting multi-user data to protect | |
| EP3376426B1 (en) | Information management terminal device | |
| KR101223427B1 (en) | Apparatus for safely distributing an internal document and methods thereof | |
| CN107273725B (en) | Data backup method and system for confidential information | |
| CN101382919A (en) | Storage data isolating method based on identity | |
| JP6729013B2 (en) | Information processing system, information processing apparatus, and program | |
| Alawneh et al. | Defining and analyzing insiders and their threats in organizations | |
| CN105205403A (en) | Method and system for managing and controlling file data of local area network based on file filtering | |
| CN105653990A (en) | U disc data safety switching method | |
| CN114357398A (en) | Terminal access right processing method and device and electronic equipment | |
| CN111737722B (en) | Method and device for safely ferrying data between intranet terminals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100127 |