CN104244171A - Data transmission system and method on basis of NFC (near field communication) connection - Google Patents

Data transmission system and method on basis of NFC (near field communication) connection Download PDF

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Publication number
CN104244171A
CN104244171A CN201410509927.8A CN201410509927A CN104244171A CN 104244171 A CN104244171 A CN 104244171A CN 201410509927 A CN201410509927 A CN 201410509927A CN 104244171 A CN104244171 A CN 104244171A
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China
Prior art keywords
data
nfc communication
nfc
external equipment
crypto token
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Pending
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CN201410509927.8A
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Chinese (zh)
Inventor
刘牛
包卫卫
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Shanghai Feixun Data Communication Technology Co Ltd
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Shanghai Feixun Data Communication Technology Co Ltd
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Priority to CN201410509927.8A priority Critical patent/CN104244171A/en
Publication of CN104244171A publication Critical patent/CN104244171A/en
Pending legal-status Critical Current

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Abstract

The invention provides a data transmission system and method on the basis of NFC (near field communication) connection. The data transmission method includes steps of transmitting NFC communication connection requests to a communication transmission end from a data receiving end, generating encryption tokens by the data transmission end according to MAC (media access control) addresses of the receiving end in the requests, feeding the encryption tokens back to be stored, comparing the encryption tokens by the data transmission end in the follow-up process to determine whether data transmission requests are legal or not, transmitting data acquired according to the data transmission requests if legal and transmitting the data encrypted according to the encryption tokens and decrypting so as to guarantee data safety. The data transmission system and method has the advantages that users are capable of customizing demand data, the demand data are automatically transmitted and received, and safety in data transmission is improved and the like.

Description

The data transmission system connected based on NFC and method
Technical field
The present invention relates to communication technical field, particularly relate to a kind of data transmission system based on NFC connection and method.
Background technology
The function of current phone is no longer confined to make a phone call and send short messages.The progress of soft and hardware, add the new features that many another users and developer continue saying it with interest simultaneously, the exploitation of communication (Near Field Communication, NFC) technology of particularly marching into the arena, for mobile phone New function developing provide huge space.Near-field communication technology is a kind of short-distance wireless communication technology based on magnetic field induction.It can exchange message intuitively, simply and safely between two electronic equipments closed on again.The application of NFC technique is that mobile phone is to an important trend that is multi-functional, intelligent direction development.
NFC can take three kinds of different mode of operations according to the difference of application: read-write mode (also referred to as card reader pattern), P2P (point-to-point) pattern, snap gauge simulation models (also claiming payment mode).The more also comparative maturity of the application of read-write mode, snap gauge simulation models in the market, but compare less for the application of P2P pattern.The application of current P2P pattern, concentrates on the transmission of the fixed datas such as the contact person of Android system, browsing device net page, picture and file mostly, and the transfer of data before two terminals all needs artificially to select operation.
Technical background
1, ad hoc mode: the function being a kind of point-to-point (P2P) exchanges data, the data format transmitted is NDEF, it is the abbreviation of Nfc Data Exchange Format, this data format is used for the exchange of Point-to-Point Data between equipment, such as web page address, contact person, mail, picture etc.For the data except picture, data volume is smaller, directly be encapsulated in class NdefMessage, by NFC, NdefMessage categorical data is sent to another equipment, and for the larger data of the such data volume of picture, need the NdefMessage data of a structure standard, send to an other equipment, after having response, then transmit data by bluetooth or WIFI.
2, close implementation, SuperBeam application that more famous is, it is the application of the exchanges data completed in conjunction with the advantage that NFC and WIFI is direct-connected.
But the shortcoming of prior art have following some:
(1) data receiver cannot customize the data of needs;
(2) data of search data transmitting terminal that cannot be intelligent according to demand;
(3) data sending terminal needs artificial confirmation to send, lack of wisdom.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide the data transmission system and method that connect based on NFC, solves single, the intelligent weak problem of existing NFC communication transmit data functionality in above-mentioned prior art.
For realizing above-mentioned target and other related objectives, the invention provides a kind of data transmitting terminal connected based on NFC, comprising: transmitting terminal NFC communication module, being connected for setting up NFC communication with external equipment; Data acquisition module, comes from the data sending request of the external equipment that described NFC communication connects with corresponding image data for basis; Transmitting terminal security module, for generating crypto token when receiving the first connection request with external equipment MAC Address, to preserve described crypto token this locality and by described NFC communication module feedback to external equipment; And for before according to data sending request image data, request external equipment beams back its crypto token received to compare with local preservation crypto token, thus judge that whether data sending request is legal, and when judging legal, connect the described image data that sends and encrypt through described crypto token to external equipment by described NFC communication.
Optionally, described NFC communication connects is use ad hoc mode communication.
Optionally, the collection of described data adopts way of search to perform.
Optionally, described search performs according to one or more following conditional combinations: data type, keyword, time, file size and filename.
Optionally, described data transmitting terminal also comprises: send limiting module, for limiting the described image data of transmission according to default restrictive condition.
For realizing above-mentioned target and other related objectives, the invention provides a kind of data transmission method for uplink connected based on NFC, comprising: set up NFC communication with external equipment and be connected; According to coming from the data sending request of the external equipment that described NFC communication connects with corresponding image data; Generating crypto token when receiving the first connection request with external equipment MAC Address, described crypto token this locality to be preserved and by described NFC communication module feedback to external equipment; Before according to data sending request image data, request external equipment beams back its crypto token received to compare with local preservation crypto token, thus judge that whether data sending request is legal, and when judging legal, connect the described image data that sends and encrypt through described crypto token to external equipment by described NFC communication.
For realizing above-mentioned target and other related objectives, the invention provides a kind of data receiving terminal connected based on NFC, comprising: receiving terminal NFC communication module, being connected for setting up NFC communication with external equipment, and outgoing being with the NFC communication request of the machine MAC Address; Demand data module, for generating data sending request, and connects transmission by described NFC communication; Receiving terminal security module, is received crypto token for being connected by described NFC communication and preserves, and wherein, described crypto token sets up the external equipment that NFC communication is connected first to generate according to described the machine MAC Address with described data receiving terminal; Described receiving terminal security module is also for before receiving the data gathered according to data sending request correspondence from described external equipment, preserved crypto token is sent to external equipment for comparison to verify that whether described data sending request is legal, and receive the described image data of encrypting through described crypto token by described NFC communication connection in the legal situation of checking, and described crypto token is used to decipher.
Optionally, described MAC Address is Bluetooth MAC address or the WiFi MAC Address of data receiving terminal.
Optionally, described NFC communication connects is use ad hoc mode communication.
For realizing above-mentioned target and other related objectives, the invention provides a kind of data receive method connected based on NFC, comprising: set up NFC communication with external equipment and be connected, and outgoing being with the NFC communication request of the machine MAC Address; Generate data sending request and connected by described NFC communication and send; Connected by described NFC communication and receive crypto token and preserve, wherein, described crypto token sets up the external equipment that NFC communication is connected first to generate according to described the machine MAC Address with described data receiving terminal; Before receiving the data gathered according to data sending request correspondence from described external equipment, preserved crypto token is sent to external equipment for comparison to verify that whether described data sending request is legal, and receive the described image data of encrypting through described crypto token by described NFC communication connection in the legal situation of checking, and described crypto token is used to decipher.
As mentioned above, the invention provides the data transmission system and method that connect based on NFC, by data receiver is sent NFC communication connection request to communication transmitting terminal, data sending terminal generates crypto token according to the receiving terminal MAC Address in request, return and preserve, and by described crypto token comparison, data sending terminal confirms that whether data sending request is legal in subsequent process, and when legal, transmitting the data gathered corresponding to data sending request, described data are by sending and then decipher to ensure Information Security after described crypto token encryption; Realize the meeting of customization demand data, the realization of automatic transceiving, the advantage such as the fail safe lifting of transfer of data.
Accompanying drawing explanation
Fig. 1 is shown as the system construction drawing based on the data transmission system of NFC connection in one embodiment of the invention.
Fig. 2 is shown as the application interface figure of the demand data CMOS macro cell data sending request of data receiver in one embodiment of the invention.
Fig. 3 is shown as the schematic flow sheet based on the data transmission method for uplink of NFC connection in one embodiment of the invention.
Fig. 4 is shown as the schematic flow sheet based on the data receive method of NFC connection in one embodiment of the invention.
Element numbers explanation
1 data sending terminal
11 transmitting terminal NFC communication modules
12 data acquisition modules
13 transmitting terminal security modules
2 data receivers
21 receiving terminal NFC communication modules
22 demand data modules
23 receiving terminal security modules
S11 ~ S13 data transmission method for uplink step
S21 ~ S24 data receive method step
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
As shown in Figure 1, the invention provides a kind of data transmission system connected based on NFC, comprising: data sending terminal 11 and data receiver 2.
Described data sending terminal 11 comprises: transmitting terminal NFC communication module 11, data acquisition module 12 and transmitting terminal security module 13 etc.
Described transmitting terminal NFC communication module 11, is connected for setting up NFC communication with data receiver 2.In one embodiment, NFC technique alleged by the present invention is the abbreviation of Near Field Commuication, i.e. near field communication (NFC), allow to carry out contactless Point-to-Point Data Transmission (generally in ten centimetres) swap data between electronic equipment, the data sending terminal 11 in the present invention and data receiver 2 can be integrated in the mobile terminal such as mobile phone or panel computer; By NFC technique, can establish a communications link by modes such as the bluetooth of identical type, WiFi; Optionally, in the present embodiment, described NFC communication connects is use point-to-point (P2P) communication pattern.
Described data acquisition module 12, comes from the data sending request of the data receiver 2 that described NFC communication connects with corresponding image data for basis.In one embodiment, the collection of described data adopts way of search to perform, described search performs according to one or more following conditional combinations: data type (graphic file, audio file, video file, application installation file, text etc.), keyword, time, file size and filename etc., these conditions are included in the described data sending request sent by data receiver 2, the customized demand of the data sending request namely sent according to data receiver 2 searches for the data gathering and meet request, in existing operating system, can by this request of certain format specificationization, such as in Android system, the form of this request is " type:apk, keyword:qq, time:2014-6-3, size:50M, name:qq ", wherein, data type is apk, be installation file in Android system, keyword qq, June 3 2014 time, size 50M, file is called " qq ", that is, be the installation file of a demand qq.apk, described data receiver 2 is in order to generate the data sending request of this belt transect demand condition, inevitable also needs carries out some process, and this will be described later, described data acquisition module 12 can software simulating, is similar to a searcher or search engine.
Certainly, preferably, described data send interrupts also can comprising transmission limiting module, in one embodiment, it can provide at graphical interfaces " send restriction arrange " option, comprises such as " only sending audio-video document ", " only send installation file ", " only send text file ", " limiting all transmissions ", options such as " transmission All Fileses "; According to the setting options of data sending terminal 11, from sending data the data (filtering through setting option) selecting finally will send, such as select " only sending installation file ", always select installation file as the data that will send using at Search Results, thus avoid some significant datas automatically to send.
Described transmitting terminal security module 13, for generating crypto token when receiving the first connection request with data receiver 2MAC address, to preserve described crypto token this locality and by described NFC communication module feedback to data receiver 2; And for before according to data sending request image data, request msg receiving terminal 2 beams back its crypto token received to compare with local preservation crypto token, thus judge that whether data sending request is legal, and when judging legal, the described image data that sends and encrypt through described crypto token is connected to data receiver 2 by described NFC communication, if judge illegal, then do not send.In one embodiment, in conjunction with foregoing, namely described crypto token can be the token of the MAC Address design encryption and decryption data according to WiFi or bluetooth of recipient, and the mode of P2P can be used to be sent to by crypto token data receiver 2 to use for contrast, and this will be described in detail later; Wherein, just related to the algorithm of data sending terminal 11 enciphered data, data receiver 2 data decryption, the design of algorithm can realize in conjunction with the cryptographic algorithm (as MD5, RSA, DES, AES, ECC, SHA etc.) that MAC Address design comparison is popular.
Corresponding, the described data receiving terminal connected based on NFC, comprising: receiving terminal NFC communication module 21, demand data module 22 and receiving terminal security module 23.
Described receiving terminal NFC communication module 21, is connected for setting up NFC communication with data sending terminal 11, and outgoing is with the NFC communication request of the machine MAC Address.In one embodiment, described receiving terminal NFC communication module 21 is communication modules identical with described transmitting terminal NFC communication module 11 standard, transmitted by wireless communication protocol, so the bluetooth of data receiver 2 or the MAC Address of WiFi are carrying out sending to data sending terminal 11 after communication connection is set up by one of feature of the present invention.
Described demand data module 22, for generating data sending request, and connects transmission by described NFC communication.In one embodiment, from the above, described data sending request has particular requirement, it can comprise following one or more conditions: data type (graphic file, audio file, video file, application installation file, text etc.), keyword, time, file size and filename etc., these conditions are included in the described data sending request sent by data receiver 2, the customized demand of the data sending request namely sent according to data receiver 2 searches for the data gathering and meet request, in existing operating system, can by this request of certain format specificationization, such as in Android system, this request can with form such as " type:apk, keyword:qq, time:2014-6-3, size:50M, name:qq " such byte symbol form sends, and wherein, data type is apk, is installation file in Android system, keyword qq, June 3 2014 time, size 50M, file is called " qq ", that is, is the installation file of a demand qq.apk, the condition of certain described data sending request can be given tacit consent in advance, and being such as defaulted as file type is apk etc., so conveniently automatically performs.
Please refer to Fig. 2, in one embodiment, each described condition can be set by man-machine interface, only need at data receiver 2 by installing the modes such as specific settings software client, thus default setting interface for users input set point, preservation set point is provided and preserves default setting etc., and described data sending request can be generated according to this.
Described receiving terminal security module 23, for being connected the crypto token that receives and generate according to its MAC Address by described NFC communication and preserving, the transmission of described crypto token can be transmitted by bluetooth or WiFi; Wherein, described crypto token sets up the data sending terminal 11 that NFC communication is connected first to generate according to described the machine MAC Address with described data receiving terminal, if not first connection, then the crypto token automatic or manual performing data transmission action generated before can using; Described receiving terminal security module 23 is also for before receiving the data gathered according to data sending request correspondence from described data sending terminal 11, preserved crypto token is sent to data sending terminal 11, should compare and confirm that whether described data sending request is legal by identical crypto token in theory with generating before data sending terminal 11 and preserve, if comparison is consistent, legal, judging to be connected by described NFC communication in legal situation to receive the described image data of encrypting through described crypto token, and using described crypto token to decipher; If judge illegal, then data cannot be received.
In one embodiment, the program of configuration also can be stored in data sending terminal 11 by described data receiver 2 in advance, such as System recover file, configuration file etc.:
A () for example, such as data sending terminal 11 is mobile phone A, and data receiver 2 is the mobile phone B of identical configuration, supposes that mobile phone B is new machine, lack a lot of application software, then adopt system of the present invention some mounting softwares that mobile phone A prestores can be sent to mobile phone B and install;
B () in another scenario, supposes that mobile phone A stores backup file in mobile phone B, when mobile phone A needs to call this backup file, send to A by B.
C (), in an embodiment again, mobile phone A and mobile phone B include the function of above-mentioned data sending terminal 11 and data receiver 2, then can mutually store the Backup Data needed to each other in advance between mobile phone A and mobile phone B, and then obtain desired data mutually.
Visible, in above-mentioned various situation, all existingly carry out downloading and installing of desired data by mobile communications network, the Internet etc. without the need to using, not only convenient but also saving network flow expense, and, existence due to crypto token makes whole process more safe and reliable, and especially when current various mobile phone mounting software binding has advertisement or wooden horse etc., safe effect is more outstanding.
Certainly, it should be noted that, in other embodiments, data sending terminal 11 in the above-mentioned preferably embodiment of the present invention and data receiver 2 is non-essential together uses, only need connection separately to realize external equipment that is similar or partial function substitute thus complete transmission and the receiving function of respective data, be not limited with above-described embodiment.
Refer to Fig. 3, in conjunction with the effect of data sending terminal in above-described embodiment 1, the invention provides a kind of data transmission method for uplink connected based on NFC, its portion of techniques principle and details can with reference to the data sending terminals 1 in previous embodiment; Described data receive method comprises:
Step S11: set up NFC communication with external equipment and be connected;
Step S12: according to coming from the data sending request of the external equipment that described NFC communication connects with corresponding image data; Generating crypto token when receiving the first connection request with external equipment MAC Address, described crypto token this locality to be preserved and by described NFC communication module feedback to external equipment;
Step S13: before according to data sending request image data, request external equipment beams back its crypto token received to compare with local preservation crypto token, thus judge that whether data sending request is legal, and when judging legal, connect the described image data that sends and encrypt through described crypto token to external equipment by described NFC communication.
Refer to Fig. 4, in conjunction with the effect of data receiver in above-described embodiment 2, the invention provides a kind of data receive method connected based on NFC, its portion of techniques principle and details can with reference to the data receivers 2 in previous embodiment; Described data receive method comprises:
Step S21: set up NFC communication with external equipment and be connected, and outgoing is with the NFC communication request of the machine MAC Address;
Step S22: generate data sending request and connect transmission by described NFC communication;
Step S23: connected by described NFC communication and receive crypto token and preserve, wherein, described crypto token sets up the external equipment that NFC communication is connected first to generate according to described the machine MAC Address with described data receiving terminal;
Step S24: before receiving the data gathered according to data sending request correspondence from described external equipment, preserved crypto token is sent to external equipment for comparison to verify that whether described data sending request is legal, and receive the described image data of encrypting through described crypto token by described NFC communication connection in the legal situation of checking, and described crypto token is used to decipher.
Certainly, data transmission method for uplink provided by the present invention and data receive method also can be combined, and correspondence can be understood with reference to above-mentioned data transmission system.
In sum, the invention provides the data transmission system and method that connect based on NFC, by data receiver is sent NFC communication connection request to communication transmitting terminal, data sending terminal generates crypto token according to the receiving terminal MAC Address in request, return and preserve, and by described crypto token comparison, data sending terminal confirms that whether data sending request is legal in subsequent process, and when legal, transmitting the data gathered corresponding to data sending request, described data are by sending and then decipher to ensure Information Security after described crypto token encryption; Realize the meeting of customization demand data, the realization of automatic transceiving, the advantage such as the fail safe lifting of transfer of data.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.

Claims (10)

1., based on the data transmitting terminal that NFC connects, it is characterized in that, comprising:
Transmitting terminal NFC communication module, is connected for setting up NFC communication with external equipment;
Data acquisition module, comes from the data sending request of the external equipment that described NFC communication connects with corresponding image data for basis;
Transmitting terminal security module, for generating crypto token when receiving the first connection request with external equipment MAC Address, to preserve described crypto token this locality and by described NFC communication module feedback to external equipment; And for before according to data sending request image data, request external equipment beams back its crypto token received to compare with local preservation crypto token, thus judge that whether data sending request is legal, and when judging legal, connect the described image data that sends and encrypt through described crypto token to external equipment by described NFC communication.
2. the data transmitting terminal connected based on NFC according to claim 1, is characterized in that, it is use ad hoc mode communication that described NFC communication connects.
3. the data transmitting terminal connected based on NFC according to claim 1, is characterized in that, the collection of described data adopts way of search to perform.
4. the data transmitting terminal connected based on NFC according to claim 3, is characterized in that, described search performs according to one or more following conditional combinations: data type, keyword, time, file size and filename.
5. the data transmitting terminal connected based on NFC according to claim 4, is characterized in that, also comprise: send limiting module, for limiting the described image data of transmission according to default restrictive condition.
6., based on the data transmission method for uplink that NFC connects, it is characterized in that, comprising:
Set up NFC communication with external equipment to be connected;
According to coming from the data sending request of the external equipment that described NFC communication connects with corresponding image data;
Generating crypto token when receiving the first connection request with external equipment MAC Address, described crypto token this locality to be preserved and by described NFC communication module feedback to external equipment;
Before according to data sending request image data, request external equipment beams back its crypto token received to compare with local preservation crypto token, thus judge that whether data sending request is legal, and when judging legal, connect the described image data that sends and encrypt through described crypto token to external equipment by described NFC communication.
7., based on the data receiving terminal that NFC connects, it is characterized in that, comprising:
Receiving terminal NFC communication module, is connected for setting up NFC communication with external equipment, and outgoing is with the NFC communication request of the machine MAC Address;
Demand data module, for generating data sending request, and connects transmission by described NFC communication;
Receiving terminal security module, is received crypto token for being connected by described NFC communication and preserves, and wherein, described crypto token sets up the external equipment that NFC communication is connected first to generate according to described the machine MAC Address with described data receiving terminal; Described receiving terminal security module is also for before receiving the data gathered according to data sending request correspondence from described external equipment, preserved crypto token is sent to external equipment for comparison to verify that whether described data sending request is legal, and receive the described image data of encrypting through described crypto token by described NFC communication connection in the legal situation of checking, and described crypto token is used to decipher.
8. the data receiving terminal connected based on NFC according to claim 7, it is characterized in that, described MAC Address is Bluetooth MAC address or the WiFi MAC Address of data receiving terminal.
9. the data receiving terminal connected based on NFC according to claim 7, it is characterized in that, it is use ad hoc mode communication that described NFC communication connects.
10., based on the data receive method that NFC connects, it is characterized in that, comprising:
Set up NFC communication with external equipment to be connected, and outgoing is with the NFC communication request of the machine MAC Address;
Generate data sending request and connected by described NFC communication and send;
Connected by described NFC communication and receive crypto token and preserve, wherein, described crypto token sets up the external equipment that NFC communication is connected first to generate according to described the machine MAC Address with described data receiving terminal;
Before receiving the data gathered according to data sending request correspondence from described external equipment, preserved crypto token is sent to external equipment for comparison to verify that whether described data sending request is legal, and receive the described image data of encrypting through described crypto token by described NFC communication connection in the legal situation of checking, and described crypto token is used to decipher.
CN201410509927.8A 2014-09-28 2014-09-28 Data transmission system and method on basis of NFC (near field communication) connection Pending CN104244171A (en)

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CN108833445A (en) * 2018-07-31 2018-11-16 中国银联股份有限公司 A kind of authentication method and device suitable for Internet of things system

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