CN101778089A - Bluetooth protocol-based high-security peer-to-peer file transmission method - Google Patents
Bluetooth protocol-based high-security peer-to-peer file transmission method Download PDFInfo
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- CN101778089A CN101778089A CN200910000632A CN200910000632A CN101778089A CN 101778089 A CN101778089 A CN 101778089A CN 200910000632 A CN200910000632 A CN 200910000632A CN 200910000632 A CN200910000632 A CN 200910000632A CN 101778089 A CN101778089 A CN 101778089A
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Abstract
The invention relates to a Bluetooth protocol-based file transmission method, in particular to a Bluetooth protocol-based high-security peer-to-peer file transmission method. According to the method, a file transmission protocol is constructed on the basis of a serial connection protocol, like on the basis of a Bluetooth standard file transmission protocol, without modifying a standard serial connection protocol provided by a Bluetooth bottom layer protocol. The method comprises the following steps of: setting a high-grade equipment authentication flow; and establishing a peer-to-peer transmission protocol on the basis of a standard Bluetooth serial equipment simulation protocol. The method is applied to the Bluetooth bottom layer protocol and can run on the premise of ensuring the hardware compatibility of Bluetooth equipment. Compared with an FT file transmission protocol of Bluetooth standards, the method has the advantages of avoiding the potential safety hazard of operation authority extension generated when an FT file transmission protocol works, along with simple operation and easy implementation.
Description
Technical field
The present invention relates to a kind of document transmission method, the point-to-point document transmission method of particularly a kind of high security based on Bluetooth protocol based on Bluetooth protocol.
Background technology
The FP file transfer applications standard or the FT file transfer protocol (FTP) of the issue of bluetooth sig tissue are the bluetooth standard application technology standards that is based upon on the general object exchange agreement basis, with reference to the 366th～396 page of the open bluetooth specification of issuing (BLUETOOTH SPECIFICATION Version 1.1) of bluetooth sig Bluetooth SIG (Bluetooth Special Interest Group), PartK:12 File Transfer Profile part.
The general file transmission specifications that bluetooth sig is organized to set up, its essence have encapsulated the operand of a cover file transfer exactly on the serial port profile level.Bluetooth specification according to standard, FP file transfer applications standard is a technical specification of directly facing the highest level of user's application, is formed by the application service content of adding in the face of the user on the general object switching technology normative foundation that is encapsulated as in the serial port profile.How FP file transfer applications normalized definition transfers data to another equipment from an equipment (computer, PDA, smart mobile phone etc.).Therefore FP file transfer applications standard is applicable to the All Files type with the mode transfer files of data flow.FP file transfer applications standard also comprises the ability of browsing far-end facility inventory and file content.In the serial port profile of more following one deck, agreement has only defined the peer device role who connects between two serial ports, does not have master-slave relationship, between the serial communication equipment is equality.And in FP file transfer applications standard, do not have peer-to-peer.To be responsible for initialized equipment in the FP file transfer applications standard and be defined as client computer, another device definition is a server.In this Client, client computer can be by being encapsulated in the OBEX operational order of (the general object exchange agreement is used for setting up the object exchange session between the client-server equipment), the concrete function below realizing:
1, from drop-down (download) file of server and file
2, draw (uploading) file and file on to server
3, the file on the browser server
4, file and the file on the deletion server
5, on server, create new folder
The function of the bluetooth file transfer protocol (FTP) of standard is very powerful, except file transfer operation, also relates to complicated telefile and catalogue browsing, deletion or the like operation, and still, strong functions also means complicated operations.In the normative document host-host protocol, one side of master control operation not only needs the man-machine interface of browsing and managing local file system, also the man-machine interface of browsing and control Telefile will be arranged, therefore this complicated operations is unfavorable for realizing on the simple platform of man-machine interface.
In addition, because the bluetooth file transfer protocol (FTP) of standard is when realizing file transfer, as initiator's client, what require when realizing file transfer that server end provides the operation catalogue at least browses and rewrites authority, causes the catalogue of server end inevitable by client-access; The file that is transmitted except necessity; the information of other file of this locality under the operation catalogue of server end will inevitably be revealed to client; therefore cause the unnecessary opening of the private information of server end: if two people use the computer equipment of support bluetooth file transfer protocol (FTP) to realize that file can to passing on Gong; a side who initiates file transfer has the authority of browsing and rewriting certain file directory of the opposing party; this application model occurs in transceiver and belongs between two different owners, is being can not be received aspect information security and the secret protection obviously.The maximum safety problem that the standard bluetooth agreement exists is exactly for realizing that the operating right that certain specific file transfer provides is whole file directory, and operating right is greater than finishing the necessary information opening authority of certain specific file transfer.
Summary of the invention
A kind of different bluetooth document transmission method of FT file transfer protocol (FTP) that provides with bluetooth specification is provided technical problem to be solved by this invention, the present invention does not revise the standard serial port connection protocol that the bluetooth underlying protocol provides, but the same with the bluetooth standard file transfer protocol (FTP), on the serial ports connection protocol, make up file transfer protocol (FTP).This method works on the bluetooth underlying protocol, can on the basis of the hardware compatibility that guarantees bluetooth equipment, move, but compare with the FT file transfer protocol (FTP) of bluetooth standard, the potential safety hazard that the operating right that takes place in the time of can avoiding the work of FT file transfer protocol (FTP) enlarges, and simple to operate.For solving the problems of the technologies described above, the present invention realizes as follows:
In the blue tooth radio network system that the computer system that has the standard bluetooth jockey more than two is formed, the method of a computer program transfer files is provided, this method comprises from a computer with bluetooth communication module the step of a file transfer to computer of the same type, this transmission course has been carried out strict access authority limitation, in the document transmission process that device authentication takes place later on, only transmit the data of file itself, do not deposit the catalogue of file and any information of other file and do not relate to the computer equipment that sends and receive, do not send and the recipient provides the stored information of any the other side's computer-internal to file.
The program of paying is before setting up the file transfer connection, be provided with high-grade equipment authentication flow, can set up the sophisticated equipment authentication irrelevant, by realize the identification and the authentication of connection object equipment fully based on the program of standard serial device access with the bluetooth equipment low layer.The operating procedure of sophisticated equipment checking and option program is as follows:
1, the foundation of sophisticated equipment ID: sophisticated equipment ID leaves in the particular memory space of configuration file that the program of issue can have access to or computer system, this device id is different from producer's device id of bluetooth self, but the device id that can edit by the user, briefly, be exactly the name that the user gets for the bluetooth equipment of oneself;
2, sophisticated equipment ID checking: the checking of sophisticated equipment name is the important checking foundation in self-defining bluetooth serial ports Hosts file transmission system.The program of paying the further concrete operations of encapsulation has:
2.1, receiving equipment ID obtains: but transmit leg obtains the senior ID of the receiver equipment that is in accepting state, in one two the blueteeth network environment more than the equipment, by the bluetooth equipment random pair, obtains more than one sophisticated equipment ID;
2.2, the receiving equipment remote control releases: if be not the equipment that transmit leg is wanted, then receiving equipment will be received from " the remote control release equipment " session that sends, and withdraw from automatically and use bluetooth equipment to be in the state of temporary transient " not accepting any network response "; If transmit leg is ended point-to-point connection, also will carry out this and release action;
2.3, transmitting apparatus ID obtains: confirm that recipient ID is assigned I D, send the host service function person done confirm operation after, the recipient obtains transmit leg ID;
2.4, device id checking passes through: transmit leg is selected receiving equipment, and the recipient also permits transmitting apparatus ID, and then bi-directional verification is passed through.
3, point-to-point connection is set up and finished: after sophisticated equipment ID checking is passed through, enter point-to-point connection automatically and set up state, transmit leg and recipient are with the corresponding file structure that transmits and receive data; Point-to-point connection can be ended when not needing to continue transfer files, perhaps, also point-to-point connection will be ended owing to connect the physics link failure.
On the bluetooth serial ports device emulation agreement of standard, set up file point-to-point transmission agreement.Simple serial port protocol is the passage of data flow, realizes that any application all will produce that initiate to use and a main frame response application.In the program of paying, the implementation method of employing is to tell primary and secondary simply, rather than sets up client/server system.In case the point-to-point connection based on the Bluetooth virtual serial equipment is set up, the step of the file transfer that the program of payment provides is as follows:
1, file router operating procedure
1.1, file attribute transmits: send main frame filename and base attribute (include file length, other content can customize as required) at least sent to the reception main frame by false serial equipment;
1.2, the file transfer License Authentication: receive from file and receive the file transfer License Authentication that main frame sends by virtual serial port;
1.3, file content transmission: file content is cut into a certain size packet, and transmission and checking in order automatically are that unit is retransmitted with the packet in validation failure;
1.4, file transfer is ended and finish.
2, file receives the procedure operation step
2.1, file attribute receives: receive main frame and receive filename and base attribute;
2.2, file receives License Authentication: after receiving main frame and obtaining reception host service function person and agree to receive the checking of file by man machine operation interface (being generally screen and button), set up legal local store path (comprising possible filename adjustment) for file, will set up the file transfer permission and respond to receiving Hosts file by virtual serial port;
2.3, content delivery: file content is cut into a certain size packet, and transmission and automatically checking in order are that unit is retransmitted with the packet in validation failure;
2.4, file transfer is ended and finish.
Good effect of the present invention is: the point-to-point document transmission method of the high security based on Bluetooth protocol of the present invention; because operation is gone up based on simple virtual serial port equipment; be encapsulated in fully on the concrete operating protocol of bluetooth; being more suitable for low-cost the embedding on the platform realizes; and the fail safe and the secret protection of operation are all better; therefore be fit to realize between the different individuals not relying on the direct file exchange of equipment such as PC, PDA, perhaps certain on-site data gathering system uses.The miniature embedding bluetooth movable storage device that plural user uses this agreement to support, can not need to open and expose under the situation of either party PC, PDA, any other file of movable storage device and directory information, the specific file of needs is realized transmission and shared, and simple to operate, realize easily.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is conventional at present bluetooth applications technical specification level.
Fig. 2 is the protocol stack model of the FT file transfer protocol (FTP) of at present conventional bluetooth standard.
Fig. 3 is conventional at present serial ports specification protocol stack.
Fig. 4 is the direct transfer operation encapsulation schematic diagram of model of self-defined point-to-point file according to the present invention.
Fig. 5 is the direct transfer protocol stack of model of self-defined point-to-point file according to the present invention.
Embodiment
Be conventional at present bluetooth applications technical specification level as shown in Figure 1:
From the hierarchical structure of bluetooth applications technical specification, can see, the level status of bluetooth FP file transfer applications standard residing maximum layer in the bluetooth applications standard system, also can see simultaneously, when the bluetooth applications standard that relates to the processing of document form and transmission is handled file content at last, all adopt serial port profile to finish down the exchanges data of one deck in essence.So the general file transmission specifications that Bluetooth technology is organized to set up, its essence have encapsulated the operand of a cover file transfer exactly on the serial port profile level.
Be the protocol stack model of the FT file transfer protocol (FTP) of at present conventional bluetooth standard as shown in Figure 2:
The FT file transfer protocol (FTP) of standard bluetooth is a kind of Client, sends file transfer requests by the client computer of initiating to server, observes from client one end, and its running is:
1, initiates request;
2, obtain the browse right of certain catalogue of server;
3, the file that needs downloaded files or need upload from the corresponding catalogue selection of server from this locality selection;
4, execute file is downloaded or upload operation.
Be conventional at present serial ports specification protocol stack as shown in Figure 3:
Serial port profile be bluetooth all relate to the lower-layer protocols of file transfer.Insert parts of the using standard of computer equipment because serial port profile is all by serial ports, so the terminal device of its communication object is the role of equity, do not have master-slave relationship.It is as follows to set up standard procedure connected in series by bluetooth:
1, the SDP of local device inquires about the server channel numbering of equipment for no reason;
2, remote equipment is responded the channel number of server;
3, carry out necessary authentication;
4, setting up L2CAP connects;
5, on server channel, set up RFCOMM and connect, constitute a false serial equipment.
On function, the bluetooth serial ports using standard is equal to the standard serial port that a main process equipment drives simply, does not have concrete application operating, and the serial ports of computers operating protocol of its operation sequence and standard is identical.
Be the direct transfer operation encapsulation schematic diagram of model of self-defined point-to-point file according to the present invention as shown in Figure 4.
The program of paying is before setting up the file transfer connection, be provided with high-grade equipment authentication flow, can set up the sophisticated equipment authentication irrelevant, by realize the identification and the authentication of connection object equipment fully based on the program of standard serial device access with the bluetooth equipment low layer.The operating procedure of sophisticated equipment checking and option program is as follows:
1, the foundation of sophisticated equipment ID: sophisticated equipment ID leaves in the particular memory space of configuration file that the program of issue can have access to or computer system, this device id is different from producer's device id of bluetooth self, but the device id that can edit by the user, briefly, be exactly the name that the user gets for the bluetooth equipment of oneself;
2, sophisticated equipment ID checking: the checking of sophisticated equipment name is the important checking foundation in self-defining bluetooth serial ports Hosts file transmission system.The program of paying the further concrete operations of encapsulation has:
2.1, receiving equipment ID obtains: but transmit leg obtains the senior ID of the receiver equipment that is in accepting state, in one two the blueteeth network environment more than the equipment, by the bluetooth equipment random pair, obtains more than one sophisticated equipment ID;
2.2, the receiving equipment remote control releases: if be not the equipment that transmit leg is wanted, then receiving equipment will be received from " the remote control release equipment " session that sends, and withdraw from automatically and use bluetooth equipment to be in the state of temporary transient " not accepting any network response "; If transmit leg is ended point-to-point connection, also will carry out this and release action;
2.3, transmitting apparatus ID obtains: confirm that recipient ID is assigned I D, send the host service function person done confirm operation after, the recipient obtains transmit leg ID;
2.4, device id checking passes through: transmit leg is selected receiving equipment, and the recipient also permits transmitting apparatus ID, and then bi-directional verification is passed through.
3, point-to-point connection is set up and finished: after sophisticated equipment ID checking is passed through, enter point-to-point connection automatically and set up state, transmit leg and recipient are with the corresponding file structure that transmits and receive data; Point-to-point connection can be ended when not needing to continue transfer files, perhaps, also point-to-point connection will be ended owing to connect the physics link failure.
Be the direct transfer protocol stack of model of self-defined point-to-point file according to the present invention as shown in Figure 5.
On the bluetooth serial ports device emulation agreement of standard, set up file point-to-point transmission agreement.Simple serial port protocol is the passage of data flow, realizes that any application all will produce that initiate to use and a main frame response application.In the program of paying, the implementation method of employing is to tell primary and secondary simply, rather than sets up client/server system.In case the point-to-point connection based on the Bluetooth virtual serial equipment is set up, the step of the file transfer that the program of payment provides is as follows:
1, file router operating procedure
1.1, file attribute transmits: send main frame filename and base attribute (include file length, other content can customize as required) at least sent to the reception main frame by false serial equipment;
1.2, the file transfer License Authentication: receive from file and receive the file transfer License Authentication that main frame sends by virtual serial port;
1.3, file content transmission: file content is cut into a certain size packet, and transmission and checking in order automatically are that unit is retransmitted with the packet in validation failure;
1.4, file transfer is ended and finish.
2, file receives the procedure operation step
2.1, file attribute receives: receive main frame and receive filename and base attribute;
2.2, file receives License Authentication: after receiving main frame and obtaining reception host service function person and agree to receive the checking of file by man machine operation interface (being generally screen and button), set up legal local store path (comprising possible filename adjustment) for file, will set up the file transfer permission and respond to receiving Hosts file by virtual serial port;
2.3, content delivery: file content is cut into a certain size packet, and transmission and automatically checking in order are that unit is retransmitted with the packet in validation failure;
2.4, file transfer is ended and finish.
Though the present invention illustrates and describes with reference to its preferred embodiment, but will be understood by those skilled in the art that, under the situation of the spirit and scope of the present invention that do not break away from the appended claims and limited, can carry out the change of various forms and details.
Claims (4)
1. the point-to-point document transmission method of the high security based on Bluetooth protocol is characterized in that this method comprises the steps: to be provided with high-grade equipment authentication flow; On the bluetooth serial ports device emulation agreement of standard, set up file point-to-point transmission agreement.
2. the point-to-point document transmission method of the high security based on Bluetooth protocol according to claim 1 is characterized in that: the described high-grade equipment authentication flow that is provided with also comprises the steps:
The foundation of sophisticated equipment ID: sophisticated equipment ID leaves in the particular memory space of configuration file that the program of issue can have access to or computer system, and this device id is different from producer's device id of bluetooth self, but the device id that can edit by the user;
Sophisticated equipment ID checking;
After sophisticated equipment ID checking is passed through, enter automatically and set up file point-to-point transmission protocol status.
3. the point-to-point document transmission method of the high security based on Bluetooth protocol according to claim 2 is characterized in that: described sophisticated equipment ID checking comprises the steps:
Receiving equipment ID obtains: but transmit leg obtains the senior ID of the receiver equipment that is in accepting state, in one two the blueteeth network environment more than the equipment, by the bluetooth equipment random pair, obtains more than one sophisticated equipment ID;
The receiving equipment remote control is released: if be not the equipment that transmit leg is wanted, then receiving equipment will be received from " the remote control release equipment " session that sends, and withdraw from automatically and use bluetooth equipment to be in the state of temporary transient " not accepting any network response "; If transmit leg is ended point-to-point connection, also will carry out this and release action;
Transmitting apparatus ID obtains: confirm that recipient ID is assigned I D, after transmission host service function person had done and confirmed operation, the recipient obtained transmit leg ID;
The device id checking is passed through: transmit leg is selected receiving equipment, and the recipient also permits transmitting apparatus ID, and then bi-directional verification is passed through.
4. the point-to-point document transmission method of the high security based on Bluetooth protocol according to claim 1 and 2 is characterized in that: the described file point-to-point transmission agreement of setting up also comprises the steps:
File router operating procedure
File attribute transmits: send main frame with filename and base attribute include file length at least, send to the reception main frame by false serial equipment;
File transfer License Authentication: receive from file and receive the file transfer License Authentication that main frame sends by virtual serial port;
File content transmission: file content is cut into a certain size packet, and transmission and checking in order automatically are that unit is retransmitted with the packet in validation failure;
File transfer is ended and is finished;
File receives the procedure operation step
File attribute receives: receive main frame and receive filename and base attribute;
File receives permission and tests: receive main frame and be generally screen and button by man machine operation interface, obtaining to receive the host service function person agrees to receive after the checking of file, for file is set up legal local store path, comprise possible filename adjustment, will set up the file transfer permission and respond to receiving Hosts file by virtual serial port;
Content delivery: file content is cut into a certain size packet, and transmission and automatically checking in order are that unit is retransmitted with the packet in validation failure;
File transfer is ended and is finished.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910000632A CN101778089A (en) | 2009-01-12 | 2009-01-12 | Bluetooth protocol-based high-security peer-to-peer file transmission method |
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| CN200910000632A CN101778089A (en) | 2009-01-12 | 2009-01-12 | Bluetooth protocol-based high-security peer-to-peer file transmission method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868713A (en) * | 2011-07-07 | 2013-01-09 | 中兴通讯股份有限公司 | Method, device and wireless terminal for processing file |
| CN107786968A (en) * | 2017-09-20 | 2018-03-09 | 陕西法士特齿轮有限责任公司 | A kind of reliable communicating method between PC bluetooth modules and outside bluetooth |
| WO2018126616A1 (en) * | 2017-01-03 | 2018-07-12 | 中兴通讯股份有限公司 | Sharing method, apparatus and system |
| CN108416207A (en) * | 2018-03-07 | 2018-08-17 | 北京元心科技有限公司 | Bluetooth access right discrimination method, device and mobile terminal |
| CN113423109A (en) * | 2021-08-24 | 2021-09-21 | 深圳兆瑞优品科技有限公司 | Designated data sharing method facing personal computer user |
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| CN1838054A (en) * | 2005-03-22 | 2006-09-27 | 联想(北京)有限公司 | Blue tooth data transmission processing apparatus and transmission method thereof |
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| US20030022667A1 (en) * | 2001-07-28 | 2003-01-30 | Samsung Electronics Co., Ltd. | Multimedia service providing system and method using bluetooth communications in mobile communication system |
| CN1705245A (en) * | 2004-06-01 | 2005-12-07 | 上海迪比特实业有限公司 | Authentication and connection method between mobile phones having bluetooth module |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102868713A (en) * | 2011-07-07 | 2013-01-09 | 中兴通讯股份有限公司 | Method, device and wireless terminal for processing file |
| CN102868713B (en) * | 2011-07-07 | 2017-12-19 | 中兴通讯股份有限公司 | A kind of method, apparatus and wireless terminal for handling file |
| WO2018126616A1 (en) * | 2017-01-03 | 2018-07-12 | 中兴通讯股份有限公司 | Sharing method, apparatus and system |
| CN107786968A (en) * | 2017-09-20 | 2018-03-09 | 陕西法士特齿轮有限责任公司 | A kind of reliable communicating method between PC bluetooth modules and outside bluetooth |
| CN108416207A (en) * | 2018-03-07 | 2018-08-17 | 北京元心科技有限公司 | Bluetooth access right discrimination method, device and mobile terminal |
| CN108416207B (en) * | 2018-03-07 | 2022-09-16 | 北京元心科技有限公司 | Bluetooth use permission identification method and device and mobile terminal |
| CN113423109A (en) * | 2021-08-24 | 2021-09-21 | 深圳兆瑞优品科技有限公司 | Designated data sharing method facing personal computer user |
| CN113423109B (en) * | 2021-08-24 | 2021-10-29 | 深圳兆瑞优品科技有限公司 | Designated data sharing method facing personal computer user |
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