CN105554062A - Method, associated device and system of file transmission - Google Patents
Method, associated device and system of file transmission Download PDFInfo
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- CN105554062A CN105554062A CN201510869823.2A CN201510869823A CN105554062A CN 105554062 A CN105554062 A CN 105554062A CN 201510869823 A CN201510869823 A CN 201510869823A CN 105554062 A CN105554062 A CN 105554062A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a file transmission method. The method comprises: receiving a service port number, a secret key and a BSSID sent by a sender through a NFC mode; establishing a WiFi connection according the BSSID and aclear cryptographic WiFi hot spot started by a receiver; receiving an IP address distributed by the sender, obtaining an IP address of the sender according to the distributed IP address; establishing a file transmission link with the sender according to the IP address of the sender and the service port number; and receiving an encryption file sent by the sender through the file transmission link, and performing decryption of the encryption file through adoption of the secret key. The embodiment of the invention further discloses a sender, a receiver and a file transmission system. According to the invention, a file transmission link may be quickly established, and the safety of file transmission may be ensured.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of document transmission method, relevant device and system.
Background technology
WiFi (WirelessFidelity supported by increasing terminal equipment at present, Wireless Fidelity, be called for short WiFi) focus sharing functionality, the Wi-Fi hotspot of opening is utilized to carry out the transmission of file, transmission speed is much higher than bluetooth and infrared transmission, and therefore this file obtains using more and more widely.The current method of Wi-Fi hotspot transfer files that utilizes is: terminal equipment can open Wi-Fi hotspot after arranging the WiFi title of Wi-Fi hotspot and network cipher, WiFi equipment scanning Wi-Fi hotspot around, generate Wi-Fi hotspot list, then in Wi-Fi hotspot list, select target Wi-Fi hotspot connects, identification authentication is carried out after input network cipher, after the WiFi equipment network cipher that the checking of target Wi-Fi hotspot connects is legal, set up WiFi with this WiFi equipment to be connected, transmission thread opened by the terminal equipment opening Wi-Fi hotspot, WiFi equipment opens receiving thread, file is sent to WiFi equipment by terminal equipment.Or the Wi-Fi hotspot of not encrypting opened by terminal equipment, WiFi equipment scanning Wi-Fi hotspot around, generate Wi-Fi hotspot list, then in Wi-Fi hotspot list, select target Wi-Fi hotspot connects, target Wi-Fi hotspot receives connection request not to be needed to carry out identification authentication and namely sets up WiFi with this WiFi equipment and be connected, target Wi-Fi hotspot is opened and is sent thread, and WiFi equipment opens receiving thread, realizes the transmitting procedure of file.
As seen from the above, utilize the process of Wi-Fi hotspot transfer files too loaded down with trivial details at present, need manually select target list from WiFi list, when Wi-Fi hotspot is encrypted, manually input password connects, and exists and connects long problem consuming time; Connect when Wi-Fi hotspot is not encrypted, though the time of certain WiFi connection can be reduced, but the fail safe of file transfer cannot be guaranteed.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, provides a kind of document transmission method, relevant device and system.Can solve in prior art and set up the file transfer link long problem not high with fail safe consuming time.
In order to solve the problems of the technologies described above, embodiments provide a kind of document transmission method, comprising:
A kind of document transmission method, is characterized in that, comprising:
The Wi-Fi hotspot that transmit leg opening of device is not encrypted;
Described transmit leg equipment obtains the BSSID of service port number, key and described Wi-Fi hotspot, and by NFC mode, described service port number, described key and described BSSID is sent to receiver equipment;
The association request of carrying described BSSID that described transmit leg equipment sends according to described receiver equipment, sets up WiFi with described receiver equipment and is connected;
Described transmit leg equipment is described receiver equipment distributing IP address, and by described WiFi connection, the IP address of distribution is sent to described receiver equipment;
Described transmit leg equipment receives the transmission connection request that described receiver equipment sends on the serve port that described service port number is corresponding;
Described transmit leg equipment sets up file transfer link according to described transmission connection request and described receiver equipment;
Described in described transmit leg equipment utilization, double secret key file to be transmitted is encrypted rear generation encrypt file, and by described file transfer link, described encrypt file is sent to described receiver equipment.
Correspondingly, the embodiment of the present invention additionally provides a kind of document transmission method, comprising:
Receiver equipment receives service port number, key and the BSSID that transmit leg equipment is sent by NFC mode;
The Wi-Fi hotspot of not encrypting that described receiver equipment is opened according to described BSSID and described receiver equipment is set up WiFi and is connected;
Described receiver equipment receives the IP address that described transmit leg equipment distributes, and obtains the IP address of described transmit leg equipment according to the IP address of described distribution;
Described receiver equipment sets up file transfer link according to the IP address of described transmit leg equipment and described service port number and described transmit leg equipment;
Described receiver equipment receives the encrypt file of described transmit leg equipment transmission by described file transfer link, and utilizes encrypt file described in described double secret key to be decrypted.
Accordingly, the embodiment of the present invention also provides a kind of transmit leg equipment, comprising:
Focus opening module, for opening the Wi-Fi hotspot of not encrypting;
Hot information sending module, for obtaining the BSSID of service port number, key and described Wi-Fi hotspot, and sends to receiver equipment by NFC mode by described service port number, described key and described BSSID;
WiFi connection establishment module, for the association request of carrying described BSSID sent according to described receiver equipment, sets up WiFi with described receiver equipment and is connected;
IP address assignment module, for being described receiver equipment distributing IP address, and sends to described receiver equipment by described WiFi connection by the IP address of distribution;
Connection request receiver module, for receiving the transmission connection request that described receiver equipment sends on the serve port that described service port number is corresponding;
Link establishment module, for setting up file transfer link according to described transmission connection request and described receiver equipment;
File send module, for utilizing described double secret key file to be transmitted to be encrypted rear generation encrypt file, and sends to described receiver equipment by described file transfer link by described encrypt file.
Accordingly, the embodiment of the present invention also provides a kind of receiver equipment, comprising:
Hot information receiver module, for receiving service port number, key and BSSID that transmit leg equipment is sent by NFC mode;
Focus link block, sets up WiFi be connected for the Wi-Fi hotspot of not encrypting of opening according to described BSSID and described receiver equipment;
IP address configuration module, for receiving the IP address that described transmit leg equipment distributes, and obtains the IP address of described transmit leg equipment according to the IP address of described distribution;
Link establishment module, for setting up file transfer link according to the IP address of described transmit leg equipment and described service port number and described transmit leg equipment;
File receive module, for being received the encrypt file that described transmit leg equipment sends by described file transfer link, and utilizes encrypt file described in described double secret key to be decrypted.
Accordingly, the embodiment of the present invention also provides a kind of document transmission system, comprises transmit leg equipment and the receiver equipment of the embodiment of the present invention.
Implement the embodiment of the present invention, there is following beneficial effect:
Service port number, key and BSSID are sent to receiver equipment by NFC mode by transmit leg equipment, receiver equipment can be connected with the Wi-Fi hotspot of not encrypting of transmit leg opening of device fast according to BSSDI, and set up file transfer link by service port number and receiver equipment, transmit leg equipment adopts the file to be transmitted of secret key encryption by the file transfer link transmission set up, can ensure that transmit leg equipment and receiver equipment connect rapidly, can ensure again the safety of file transfer like this.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the mutual schematic diagram of a kind of document transmission system that the embodiment of the present invention provides;
Fig. 2 is the schematic flow sheet of a kind of document transmission method that the embodiment of the present invention provides;
Fig. 3 is another schematic flow sheet of a kind of document transmission method that the embodiment of the present invention provides;
Fig. 4 is the structural representation of a kind of transmit leg equipment that the embodiment of the present invention provides;
Fig. 5 is the structural representation of a kind of receiver equipment that the embodiment of the present invention provides;
Fig. 6 is another structural representation of a kind of transmit leg equipment that the embodiment of the present invention provides;
Fig. 7 is another structural representation of a kind of receiver equipment that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, for the mutual schematic diagram of a kind of document transmission system that the embodiment of the present invention provides, in embodiments of the present invention, document transmission system comprises transmit leg equipment and receiver equipment, the transmit leg equipment that the embodiment of the present invention provides supports that Wi-Fi hotspot is shared, receiver equipment supports that WiFi connects, and transmit leg equipment and receiver equipment include but not limited to carry
or the mobile terminal of other operating system, such as mobile phone.Also can be other mobile terminal, such as there is the laptop computer of Touch sensitive surface (such as, touch-screen display and/or Trackpad) or panel computer or desktop computer.The reciprocal process of transmit leg equipment and receiver equipment is as follows:
The Wi-Fi hotspot that S101, transmit leg opening of device are not encrypted.
Concrete, transmit leg equipment supports Wi-Fi hotspot sharing functionality, and transmit leg opening of device WiFI focus, is set to not encrypted state by Wi-Fi hotspot, and namely any WiFi equipment does not need to carry out the authentication i.e. Wi-Fi hotspot of accessible transmit leg opening of device.Transmit leg equipment also needs the SSID arranging Wi-Fi hotspot, namely usually alleged WiFi title.
S102, transmit leg equipment obtain BSSID, service port number and key.
Concrete, BSSID (BasicServiceSetIdentifier, basic service set identification, be called for short BSSID) be the unique identification of the Wi-Fi hotspot of transmit leg opening of device, BSSID is generally MAC (MediumAccessControl, the medium access control of transmit leg equipment, be called for short MAC) address, service port number is used for the port to receiving transmit leg device transmission file to be transmitted, and can arrange as required, the present invention is not restricted.Key is used for treating transfer files and is encrypted, and receiver equipment also needs to hold this key and could be decrypted the file to be transmitted after encryption.
S103, transmit leg equipment send BSSID, service port number and key in NFC mode.
Wherein, transmit leg equipment and receiver equipment all support NFC (NearFieldCommunication, near-field communication are called for short NFC) function, when transmit leg equipment is positioned at receiver equipment preset range, the BSSID that transmit leg equipment will be obtained by NFC mode.
S104, receiver equipment receive BSSID, service port number and key by NFC mode.
S105, transmit leg equipment send the association request of carrying BSSID.
Concrete, transmit leg equipment uniquely determines the identity information of Wi-Fi hotspot according to the BSSID received, and sends the association request of carrying BSSID to transmit leg equipment, and association request is set up WiFi for receiver equipment with transmit leg equipment and is connected.
S106, transmit leg equipment are set up WiFi with receiver equipment and are connected.
Wherein, the WiFI focus of transmit leg opening of device is not encrypted, and after the association request that node sends to receiver equipment, does not need to carry out identification authentication to receiver equipment, directly sets up WiFi with receiver equipment and be connected.
S107, transmit leg equipment are receiver equipment distributing IP address.
Wherein, transmit leg equipment and receiver equipment are set up after WiFi is connected, and are receiver equipment distributing IP address, make the IP address of receiver equipment and transmit leg equipment belong to a local area network (LAN).The mode of IP address assignment can adopt dynamic or static mode, and the present invention is not restricted.
S108, transmit leg equipment send the IP address distributed to receiver equipment.
Wherein, transmit leg equipment connects by the WiFi set up the IP address distributed to receiver equipment.
The IP address that the configuration of S109, receiver equipment distributes, obtains the IP address of transmit leg equipment according to the IP address distributed.
Concrete, receiver equipment receives the IP address of IP address and the configuration distribution distributed, receiver equipment determines the IP address of transmit leg equipment according to the IP address distributed, and wherein, last of the IP address of distribution replaces with the IP address that 1 is transmit leg equipment.
S110, receiver equipment send transmission connection request according to the IP address of transmit leg equipment and service port number.
Concrete, receiver equipment sends the IP address that the object IP address of transmitting connection request is transmit leg equipment, and transmit leg equipment and receiver equipment adopt identical service port number simultaneously.Transmission connection request is for setting up the file transfer link between transmit leg equipment and receiver equipment.
S111, transmit leg equipment receive transmission connection request, and set up file transfer link.
File subpackage to be transmitted is multiple packet by S112, transmit leg equipment, is encrypted obtains encrypted packets according to the multiple packet of double secret key.
S113, transmit leg equipment send encrypted packets to receiver equipment successively.
S114, receiver equipment are decrypted the encrypted packets received and recombinate.
Wherein, receiver equipment receives the encrypted packets of transmit leg equipment transmission with this, the key utilizing S104 to receive is decrypted each encrypted packets respectively, when receiving the entire packet of file division to be transmitted, entire packet being carried out in order restructuring and obtaining file to be transmitted.
As can be seen from above-described embodiment, service port number, key and BSSID are sent to receiver equipment by NFC mode by transmit leg equipment, receiver equipment can be connected with the Wi-Fi hotspot of not encrypting of transmit leg opening of device fast according to BSSDI, and set up file transfer link by service port number and receiver equipment, transmit leg equipment adopts the file to be transmitted of secret key encryption by the file transfer link transmission set up, can ensure that transmit leg equipment and receiver equipment connect rapidly, can ensure again the safety of file transfer like this.
See Fig. 2, be the schematic flow sheet of a kind of document transmission method that the embodiment of the present invention provides, in embodiments of the present invention, described method comprises:
The Wi-Fi hotspot that S201, transmit leg opening of device are not encrypted.
Concrete, transmit leg equipment has Wi-Fi hotspot sharing functionality, transmit leg equipment arranges the SSID of Wi-Fi hotspot and Wi-Fi hotspot is set to not encryption mode, after the Wi-Fi hotspot that transmit leg opening of device is not encrypted, transmit leg equipment is as the AP in WLAN (wireless local area network), and recipient is provided as the station website in WLAN (wireless local area network).Wi-Fi hotspot due to transmit leg opening of device adopts not encryption mode, and any transmit leg equipment allows the access of any website, does not need to carry out identification authentication to website.
S202, described transmit leg equipment obtain the BSSID of service port number, key and described Wi-Fi hotspot, and by NFC mode, described service port number, described key and BSSID are sent to receiver equipment.
Concrete, the virtual interface on transmit leg equipment and receiver equipment, transmit leg equipment and receiver equipment use during identical serve port just can carry out transmission service.BSSID is used for unique identify label representing the identity of WiFI focus, usually adopts the MAC Address of AP (i.e. transmit leg equipment) to represent.Key is treated transfer files for transmit leg equipment and is encrypted, and receiver equipment is decrypted file to be received.
The association request of carrying described BSSID that S203, described transmit leg equipment send according to described receiver equipment, sets up WiFi with described receiver equipment and is connected.
Concrete, association request is set up WiFi for receiver equipment with transmit leg equipment and is connected.Transmit leg equipment receives the association request that transmit leg equipment sends, and resolves association and asks the BSSID wherein carried to be the BSSID of self, set up WiFi be connected with receiver equipment.
S204, described transmit leg equipment are described receiver equipment distributing IP address, and send to receiver equipment by the IP address that described WiFi connects for distributing.
Concrete, transmit leg equipment and receiver equipment are set up after WiFi is connected, transmit leg equipment is receiver equipment distributing IP address, and the method for distribution can be: the IP address of inquire-receive method, apparatus binding in IP address resource pond, by the IP address assignment of binding to receiver equipment; Or transmit leg equipment selects any one to be to receiver equipment by the IP address assignment that uses in IP address resource pond.
S205, described transmit leg equipment receive the transmission connection request that described receiver equipment sends on the serve port that service port number is corresponding.
Concrete, transmission connection request is for setting up the file transfer link between transmit leg equipment and receiver equipment, transmit leg equipment and receiver equipment, setting up after WiFi is connected, carry out the foundation of file transfer link and the transmission of file in identical service port number.
S206, described transmit leg equipment set up file transfer link according to described transmission connection request and described receiver equipment.
Described in S207, described transmit leg equipment utilization, double secret key file to be transmitted is encrypted rear generation encrypt file, and by described file transfer link, described encrypt file is sent to described receiver equipment.
Concrete, transmit leg equipment utilization double secret key file to be transmitted is encrypted generation encrypt file, by the file transfer link set up, encrypt file is sent to receiver equipment, the encrypt file that receiver equipment utilizes the double secret key identical with transmit leg equipment to receive is decrypted, if other equipment setting up WiFi white silk level with transmit leg equipment obtain encrypt file, there is no the content knowing file that key cannot be correct, the effective like this safety that ensure that file transfer.
Service port number, key and BSSID are sent to receiver equipment by NFC mode by transmit leg equipment, receiver equipment can be connected with the Wi-Fi hotspot of not encrypting of transmit leg opening of device fast according to BSSDI, and set up file transfer link by service port number and receiver equipment, transmit leg equipment adopts the file to be transmitted of secret key encryption by the file transfer link transmission set up, can ensure that transmit leg equipment and receiver equipment connect rapidly, can ensure again the safety of file transfer like this.
Described in described transmit leg equipment utilization, double secret key file to be transmitted is encrypted rear generation encrypt file, and sends to described receiver equipment to comprise described encrypt file by described file transfer link:
Described file to be transmitted is carried out subpackage process and obtains multiple packet by described transmit leg equipment, utilizes described encrypt file to be encrypted the rear multiple encrypted packets generating correspondence respectively to described multiple packet;
Described multiple encrypted packets is sent to described receiver equipment by described transmit leg equipment successively.
Concrete, the size of the data that transmit leg equipment transmits at every turn is restricted, if the size of file to be transmitted exceedes preset value, be multiple packet by file division to be transmitted, and packet each in multiple packet is numbered, and utilizing each packet of double secret key to be encrypted rear generation encrypted packets, encrypted packets is sent to receiver equipment, until all encrypted packets are all sent according to the order of numbering by transmit leg equipment successively.Wherein, the total quantity of numbering 1 and encrypted packets is carried in first encrypted packets, after receiver equipment receives first encrypted packets, key is utilized to be decrypted, obtain the total quantity of the numbering of first encrypted packets and the packet of file division to be transmitted, receiver equipment often receives an encrypted packets and utilizes key to be decrypted, until receive all packets corresponding to file to be transmitted, carries out restructuring generate file to be transmitted to the packet after deciphering according to numbering.
Illustrate, key is 128 AES (AdvancedEncryptionStandard, Advanced Encryption Standard, be called for short AES) key, by file to be transmitted, each is 4 packets to transmit leg equipment, and be numbered by 4 packets, the total quantity 4 of numbering 1 and packet is carried in the packet header of first packet, transmit leg equipment adopts AES key to be encrypted generation 4 encrypted packets to 4 packets, and transmit leg equipment sends 4 encrypted packets successively according to numbering.
Optionally, described transmit leg equipment receive on the serve port that described service port number is corresponding described receiver equipment send transmission connection request comprise:
Described transmit leg equipment monitors serve port corresponding to described service port number by the listen function of Socket agreement;
The transmission connection request of described receiver equipment transmission is received by described serve port.
Wherein, transmit leg equipment is after unlatching Wi-Fi hotspot, and open the serve port that service port number is corresponding, receiver equipment receives service port number by NFC, the serve port that same unlatching service port number is corresponding.The listen function of transmit leg equipment by Socket agreement on this serve port is monitored on this serve port, is received the transmission connection request of transmit leg equipment transmission by serve port.
Optionally, the BSSID of the described acquisition of transmit leg equipment service port number, key and described Wi-Fi hotspot comprises:
Described transmit leg equipment stochastic generation service port number and AES key, and service port number, AES key and the MAC Address of self that acquisition generates are as BSSID.
Wherein, service port number and AES key are all stochastic generation, prevent service port number to be illegally listened, and prevent the leakage of key, ensure the fail safe of file transfer.
Optionally, described transmit leg equipment is that described receiver equipment distributing IP address comprises:
Described transmit leg equipment according to DHCP (DynamicHostConfigurationProtocol, DHCP are called for short DHCP) select in algorithm secondary IP address resource pool not by the IP address assignment that uses to described receiver equipment.
Illustrate, IP address resource pond is the IP address of 192.168.1.100 ~ 192.168.1.199 scope, receiver equipment and transmit leg equipment are set up after WiFi is connected, transmit leg equipment is receiver equipment distributing IP address, is down state in IP address resource pond by the IP address mark of distribution; If receiver equipment and transmit leg equipment disconnect after WiFi is connected and exceedes preset duration, transmit leg equipment reclaims the IP address of receiver equipment, be upstate by the IP address mark of recipient in IP address resource pond, this IP address is available again is like this reassigned to other equipment use.
See Fig. 3, be the transmission method of a kind of file that the embodiment of the present invention provides, in embodiments of the present invention, described method comprises:
S301, receiver equipment receive service port number, key and the BSSID that transmit leg equipment is sent by NFC mode.
Concrete, receiver equipment supports NFC function, and when receiver equipment is positioned at preset range, receiver equipment sends service port number, key and BSSID to transmit leg equipment by NFC mode.Service port number is the numbering of the virtual interface that transmit leg equipment and receiver equipment are opened jointly, is completed the transmission of file by virtual interface, and key is used for treating transfer files and encrypts and decrypts; After the Wi-Fi hotspot that transmit leg opening of device is not encrypted, BSSID is the MAC Address of transmit leg equipment, for the identity of unique identification Wi-Fi hotspot.
The Wi-Fi hotspot of not encrypting that S302, described receiver equipment are opened according to described BSSID and described receiver equipment is set up WiFi and is connected.
Concrete, when there is multiple Wi-Fi hotspot in the scope of receiver equipment detection, after receiver equipment determines the identity of target WiFi website according to BSSID, send the association request of carrying BSSID to transmit leg equipment, transmit leg equipment is set up WiFi with receiver equipment after receiving association request and is connected.
S303, described receiver equipment receive the IP address that described transmit leg equipment distributes, and according to the IP address of described distribution, and obtain the IP address of described transmit leg equipment according to the IP address of described distribution.
Concrete, receiver equipment receives the IP address that transmit leg equipment distributes, and last of the IP address of distribution is replaced with the IP address being transmit leg equipment after 1.Such as, transmit leg equipment is the IP address that receiver equipment distributes is 192.169.1.102, then the IP address of transmit leg equipment is 192.169.1.1.
S304, described receiver equipment set up file transfer link according to the IP address of described transmit leg equipment and described service port number and described transmit leg equipment.
Concrete, file transfer link is the link of network layer, for transfer files between receiver equipment and transmit leg equipment.Wherein, transmit leg equipment is identical with the service port number of receiver equipment, and the IP address of transmit leg equipment and receiver equipment is positioned at same local area network (LAN).
S305, described receiver equipment receive the encrypt file of described transmit leg equipment transmission by described file transfer link, and utilize encrypt file described in described double secret key to be decrypted.
Optionally, described receiver equipment is set up file transfer link according to the IP address of described transmit leg equipment and described service port number and described transmit leg equipment and is comprised:
Described receiver equipment generates transmission connection request by the connect function of Socket agreement;
Described receiver equipment sends described transmission connection request according to the IP address of described transmit leg equipment and service port number to described transmit leg equipment, sets up file transfer link with described receiver equipment.
Optionally, described receiver equipment receives by described file transfer link the encrypt file that described transmit leg equipment sends, and utilizes encrypt file described in described double secret key to be decrypted to comprise:
After described receiver equipment receives multiple encrypted packets corresponding to file to be transmitted, described multiple encrypted packets to be decrypted and restructuring obtains described file to be transmitted.
Concrete, the size of the data that transmit leg equipment transmits at every turn is restricted, if the size of file to be transmitted exceedes preset value, be multiple packet by file division to be transmitted, and packet each in multiple packet is numbered, and utilizing each packet of double secret key to be encrypted rear generation encrypted packets, encrypted packets is sent to receiver equipment, until all encrypted packets are all sent according to the order of numbering by transmit leg equipment successively.Wherein, the total quantity of numbering 1 and encrypted packets is carried in first encrypted packets, after receiver equipment receives first encrypted packets, key is utilized to be decrypted, obtain the total quantity of the numbering of first encrypted packets and the packet of file division to be transmitted, receiver equipment often receives an encrypted packets and utilizes key to be decrypted, until receive all packets corresponding to file to be transmitted, carries out restructuring generate file to be transmitted to the packet after deciphering according to numbering.
Illustrate, key is 128 AES keys, by file to be transmitted, each is 4 packets to transmit leg equipment, 4 packets are numbered, the total quantity 4 of numbering 1 and packet is carried in the packet header of first packet, transmit leg equipment adopts AES key to be encrypted generation 4 encrypted packets to 4 packets, and transmit leg equipment sends 4 encrypted packets successively according to numbering.Receiver equipment connects and often receives an encrypted packets and utilize key pair encryption packet to be decrypted to generate clear data bag, after all encrypted packets that file to be transmitted is corresponding all receive, 4 clear data bags that deciphering obtains are carried out restructuring in order and obtains file to be transmitted.
See Fig. 4, for the structural representation of a kind of transmit leg equipment that the embodiment of the present invention provides, in embodiments of the present invention, transmit leg equipment 4 is for performing the document transmission method in Fig. 2, the term wherein related to and example can refer to the description of Fig. 2 embodiment, and transmit leg equipment 4 comprises: focus opening module 401, hot information sending module 402, WiFi connection establishment module 403, IP address assignment module 404, connection request receiver module 405, link establishment module 406 and file send module 407.
Focus opening module 401, for opening the Wi-Fi hotspot of not encrypting.
Hot information sending module 402, for obtaining the BSSID of service port number, key and described Wi-Fi hotspot, and sends to receiver equipment by NFC mode by described service port number, described key and described BSSID.
WiFi connection establishment module 403, for the association request of carrying described BSSID sent according to described receiver equipment, sets up WiFi with described receiver equipment and is connected.
IP address assignment module 404, for being described receiver equipment distributing IP address, and sends to described receiver equipment by described WiFi connection by the IP address of distribution.
Connection request receiver module 405, for receiving the transmission connection request that described receiver equipment sends on the serve port that described service port number is corresponding.
Link establishment module 406, for setting up file transfer link according to described transmission connection request and described receiver equipment.
File send module 407, for utilizing described double secret key file to be transmitted to be encrypted rear generation encrypt file, and sends to described receiver equipment by described file transfer link by described encrypt file.
Optionally, file send module 407 specifically for:
Described file to be transmitted is carried out subpackage process and obtains multiple packet, utilize described encrypt file to be encrypted the rear multiple encrypted packets generating correspondence respectively to described multiple packet;
Successively described multiple encrypted packets is sent to described receiver equipment.
Optionally, connection request receiver module 405 specifically for:
Serve port corresponding to described service port number is monitored by the listen function of Socket agreement;
The transmission connection request of described receiver equipment transmission is received by described serve port.
Optionally, hot information sending module 402 for:
Stochastic generation service port number and AES key, and service port number, AES key and the MAC Address of self that acquisition generates are as BSSID.
Optionally, IP address assignment module 404 for:
According to select in DHCP algorithm secondary IP address resource pool not by the IP address assignment that uses to described receiver equipment.
The embodiment of the method for the embodiment of the present invention and Fig. 2 is based on same design, and its technique effect brought is also identical, and concrete principle please refer to the explanation of the embodiment of method Fig. 2, repeats no more herein.
See Fig. 5, be the structural representation of a kind of receiver equipment that the embodiment of the present invention provides, in embodiments of the present invention, receiver equipment 5 is for performing the document transmission method in Fig. 3, and the term wherein related to and example can refer to the description of Fig. 3 embodiment.Receiver equipment 5 comprises: hot information receiver module 501, focus link block 502, IP address configuration module 503, link establishment module 504, file receive module 505.
Hot information receiver module 501, for receiving service port number, key and BSSID that transmit leg equipment is sent by NFC mode.
Focus link block 502, sets up WiFi be connected for the Wi-Fi hotspot of not encrypting of opening according to described BSSID and described receiver equipment.
IP address configuration module 503, for receiving the IP address that described transmit leg equipment distributes, and obtains the IP address of described transmit leg equipment according to the IP address of described distribution.
Link establishment module 504, for setting up file transfer link according to the IP address of described transmit leg equipment and described service port number and described transmit leg equipment.
File receive module 505, for being received the encrypt file that described transmit leg equipment sends by described file transfer link, and utilizes encrypt file described in described double secret key to be decrypted.
Optionally, link establishment module 504 specifically for:
Transmission connection request is generated by the connect function of Socket agreement;
Send described transmission connection request according to the IP address of described transmit leg equipment and service port number to described transmit leg equipment, set up file transfer link with described receiver equipment.
Optionally, file receive module 505 specifically for:
After described receiver equipment receives multiple encrypted packets corresponding to file to be transmitted, described multiple encrypted packets to be decrypted and restructuring obtains described file to be transmitted.
The embodiment of the method for the embodiment of the present invention and Fig. 3 is based on same design, and its technique effect brought is also identical, and concrete principle please refer to the explanation of the embodiment of method Fig. 3, repeats no more herein.
See Fig. 6, be the structural representation of a kind of transmit leg equipment that the embodiment of the present invention provides, transmit leg equipment 6 comprises processor 601, memory 602 and transceiver 603.Transceiver 603 is for transceiving data between external equipment.The quantity of the processor 601 in transmit leg equipment 6 can be one or more.In some embodiments of the present invention, processor 601, memory 602 are connected by bus system or other modes with transceiver 603.Transmit leg equipment 6 may be used for the method shown in Fig. 2 that performs.The implication of the term related to about the present embodiment and citing, can the embodiment of reference diagram 2 correspondence.Repeat no more herein.
Wherein, program code stored in memory 602.Processor 601 for call in memory 602 store program code, for performing following operation:
Open the Wi-Fi hotspot of not encrypting;
Obtain the BSSID of service port number, key and described Wi-Fi hotspot, and by NFC mode, described service port number, described key and described BSSID are sent to receiver equipment;
According to the association request of carrying described BSSID that described receiver equipment sends, set up WiFi with described receiver equipment and be connected;
For described receiver equipment distributing IP address, and by described WiFi connection, the IP address of distribution is sent to described receiver equipment;
The serve port that described service port number is corresponding receives the transmission connection request that described receiver equipment sends;
File transfer link is set up according to described transmission connection request and described receiver equipment;
Utilize described double secret key file to be transmitted to be encrypted rear generation encrypt file, and by described file transfer link, described encrypt file is sent to described receiver equipment.
In some embodiments of the invention, processor 601 performs the described described double secret key file to be transmitted that utilizes and is encrypted rear generation encrypt file, and sends to described receiver equipment to comprise described encrypt file by described file transfer link:
Described file to be transmitted is carried out subpackage process and obtains multiple packet, utilize described encrypt file to be encrypted the rear multiple encrypted packets generating correspondence respectively to described multiple packet;
Successively described multiple encrypted packets is sent to described receiver equipment.
In some embodiments of the invention, processor 601 performs and described on the serve port that described service port number is corresponding, receive the transmission connection request that described receiver equipment sends comprise:
Serve port corresponding to described service port number is monitored by the listen function of Socket agreement;
The transmission connection request of described receiver equipment transmission is received by described serve port.
In some embodiments of the invention, the BSSID that processor 601 performs described acquisition service port number, key and described Wi-Fi hotspot comprises:
Stochastic generation service port number and AES key, and service port number, AES key and the MAC Address of self that acquisition generates are as BSSID.
In some embodiments of the invention, processor 601 performs and described to comprise for described receiver equipment distributing IP address:
According to select in DHCP algorithm secondary IP address resource pool not by the IP address assignment that uses to described receiver equipment.
See Fig. 7, be the structural representation of a kind of receiver equipment that the embodiment of the present invention provides, receiver equipment 7 comprises processor 701, memory 702 and transceiver 703.Transceiver 603 is for transceiving data between external equipment.The quantity of the processor 701 in receiver equipment 7 can be one or more.In some embodiments of the present invention, processor 701, memory 702 are connected by bus system or other modes with transceiver 703.Receiver equipment 7 may be used for the method shown in Fig. 3 that performs.The implication of the term related to about the present embodiment and citing, can the embodiment of reference diagram 3 correspondence.Repeat no more herein.
Wherein, program code stored in memory 302.Processor 301 for call in memory 302 store program code, for performing following operation:
Receive service port number, key and BSSID that transmit leg equipment is sent by NFC mode;
Set up WiFi be connected according to the Wi-Fi hotspot of not encrypting that described BSSID and described receiver equipment are opened;
Receive the IP address that described transmit leg equipment distributes, and obtain the IP address of described transmit leg equipment according to the IP address of described distribution;
File transfer link is set up according to the IP address of described transmit leg equipment and described service port number and described transmit leg equipment;
Received the encrypt file of described transmit leg equipment transmission by described file transfer link, and utilize encrypt file described in described double secret key to be decrypted.
In some embodiments of the invention, processor 601 performs the described IP address according to described transmit leg equipment and described service port number and described transmit leg equipment and sets up file transfer link and comprise:
Transmission connection request is generated by the connect function of Socket agreement;
Send described transmission connection request according to the IP address of described transmit leg equipment and service port number to described transmit leg equipment, set up file transfer link with described receiver equipment.
In some embodiments of the invention, processor 601 performs and described receives by described file transfer link the encrypt file that described transmit leg equipment sends, and utilizes encrypt file described in described double secret key to be decrypted to comprise:
After receiving multiple encrypted packets corresponding to file to be transmitted, described multiple encrypted packets to be decrypted and restructuring obtains described file to be transmitted.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly the interest field of the present invention can not be limited with this, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and according to the equivalent variations that the claims in the present invention are done, still belong to the scope that invention is contained.
Claims (17)
1. a document transmission method, is characterized in that, comprising:
The Wireless Fidelity Wi-Fi hotspot that transmit leg opening of device is not encrypted;
Described transmit leg equipment obtains the Basic Service Set identify label BSSID of service port number, key and described Wi-Fi hotspot, and by near-field communication NFC mode, the Basic Service Set identify label BSSID of described service port number, described key and described Wi-Fi hotspot is sent to receiver equipment;
The association request of carrying described BSSID that described transmit leg equipment sends according to described receiver equipment, sets up WiFi with described receiver equipment and is connected;
Described transmit leg equipment is described receiver equipment distributing IP address, and by described WiFi connection, the IP address of distribution is sent to described receiver equipment;
Described transmit leg equipment receives the transmission connection request that described receiver equipment sends on the serve port that described service port number is corresponding;
Described transmit leg equipment sets up file transfer link according to described transmission connection request and described receiver equipment;
Described in described transmit leg equipment utilization, double secret key file to be transmitted is encrypted rear generation encrypt file, and by described file transfer link, described encrypt file is sent to described receiver equipment.
2. the method for claim 1, is characterized in that, described in described transmit leg equipment utilization, double secret key file to be transmitted is encrypted rear generation encrypt file, and sends to described receiver equipment to comprise described encrypt file by described file transfer link:
Described file to be transmitted is carried out subpackage process and obtains multiple packet by described transmit leg equipment, utilizes described encrypt file to be encrypted the rear multiple encrypted packets generating correspondence respectively to described multiple packet;
Described multiple encrypted packets is sent to described receiver equipment by described transmit leg equipment successively.
3. the method for claim 1, is characterized in that, the transmission connection request that described transmit leg equipment receives the transmission of described receiver equipment on the serve port that described service port number is corresponding comprises:
Described transmit leg equipment monitors serve port corresponding to described service port number by the monitoring listen function of socket Socket agreement;
The transmission connection request of described receiver equipment transmission is received by described serve port.
4. the method for claim 1, is characterized in that, the Basic Service Set identify label BSSID that described transmit leg equipment obtains service port number, key and described Wi-Fi hotspot comprises:
Described transmit leg equipment stochastic generation service port number and AES key, and service port number, Advanced Encryption Standard AES key and the medium access control MAC Address of self that acquisition generates are as BSSID.
5. the method as described in claim 1-4 any one, is characterized in that, described transmit leg equipment is that described receiver equipment distributing IP address comprises:
Described transmit leg equipment according to select in dynamic host configuration protocol DHCP algorithm secondary IP address resource pool not by the IP address assignment that uses to described receiver equipment.
6. a document transmission method, is characterized in that, comprising:
Receiver equipment receives service port number, key and the Basic Service Set identify label BSSID that transmit leg equipment is sent by near-field communication NFC mode;
The Wi-Fi hotspot of not encrypting that described receiver equipment is opened according to described BSSID and described receiver equipment is set up WiFi and is connected;
Described receiver equipment receives the IP address that described transmit leg equipment distributes, and obtains the IP address of described transmit leg equipment according to the IP address of described distribution;
Described receiver equipment sets up file transfer link according to the IP address of described transmit leg equipment and described service port number and described transmit leg equipment;
Described receiver equipment receives the encrypt file of described transmit leg equipment transmission by described file transfer link, and utilizes encrypt file described in described double secret key to be decrypted.
7. method as claimed in claim 6, is characterized in that, described receiver equipment is set up file transfer link according to the IP address of described transmit leg equipment and described service port number and described transmit leg equipment and comprised:
Described receiver equipment generates transmission connection request by the connection connect function of socket Socket agreement;
Described receiver equipment sends described transmission connection request according to the IP address of described transmit leg equipment and service port number to described transmit leg equipment, sets up file transfer link with described receiver equipment.
8. method as claimed in claims 6 or 7, is characterized in that, described receiver equipment receives by described file transfer link the encrypt file that described transmit leg equipment sends, and utilizes encrypt file described in described double secret key to be decrypted to comprise:
After described receiver equipment receives multiple encrypted packets corresponding to file to be transmitted, described multiple encrypted packets to be decrypted and restructuring obtains described file to be transmitted.
9. a transmit leg equipment, is characterized in that, comprising:
Focus opening module, for opening the Wi-Fi hotspot of not encrypting;
Hot information sending module, for obtaining the BSSID of service port number, key and described Wi-Fi hotspot, and sends to receiver equipment by NFC mode by described service port number, described key and described BSSID;
WiFi connection establishment module, for the association request of carrying described BSSID sent according to described receiver equipment, sets up WiFi with described receiver equipment and is connected;
IP address assignment module, for being described receiver equipment distributing IP address, and sends to described receiver equipment by described WiFi connection by the IP address of distribution;
Connection request receiver module, for receiving the transmission connection request that described receiver equipment sends on the serve port that described service port number is corresponding;
Link establishment module, for setting up file transfer link according to described transmission connection request and described receiver equipment;
File send module, for utilizing described double secret key file to be transmitted to be encrypted rear generation encrypt file, and sends to described receiver equipment by described file transfer link by described encrypt file.
10. transmit leg equipment as claimed in claim 9, is characterized in that, described file send module specifically for:
Described file to be transmitted is carried out subpackage process and obtains multiple packet, utilize described encrypt file to be encrypted the rear multiple encrypted packets generating correspondence respectively to described multiple packet;
Successively described multiple encrypted packets is sent to described receiver equipment.
11. transmit leg equipment as claimed in claim 9, is characterized in that, described connection request receiver module specifically for:
Serve port corresponding to described service port number is monitored by the listen function of Socket agreement;
The transmission connection request of described receiver equipment transmission is received by described serve port.
12. transmit leg equipment as claimed in claim 9, it is characterized in that, described hot information sending module is used for:
Stochastic generation service port number and AES key, and service port number, AES key and the MAC Address of self that acquisition generates are as BSSID.
13. transmit leg equipment as described in claim 9-12 any one, it is characterized in that, IP address assignment module is used for:
According to select in DHCP algorithm secondary IP address resource pool not by the IP address assignment that uses to described receiver equipment.
14. 1 kinds of receiver equipments, is characterized in that, comprising:
Hot information receiver module, for receiving service port number, key and BSSID that transmit leg equipment is sent by NFC mode;
Focus link block, sets up WiFi be connected for the Wi-Fi hotspot of not encrypting of opening according to described BSSID and described receiver equipment;
IP address configuration module, for receiving the IP address that described transmit leg equipment distributes, and obtains the IP address of described transmit leg equipment according to the IP address of described distribution;
Link establishment module, for setting up file transfer link according to the IP address of described transmit leg equipment and described service port number and described transmit leg equipment;
File receive module, for being received the encrypt file that described transmit leg equipment sends by described file transfer link, and utilizes encrypt file described in described double secret key to be decrypted.
15. receiver equipments as claimed in claim 14, is characterized in that, described link establishment module specifically for:
Transmission connection request is generated by the connect function of Socket agreement;
Send described transmission connection request according to the IP address of described transmit leg equipment and service port number to described transmit leg equipment, set up file transfer link with described receiver equipment.
16. receiver equipments as described in claims 14 or 15, is characterized in that, described file receive module specifically for:
After described receiver equipment receives multiple encrypted packets corresponding to file to be transmitted, described multiple encrypted packets to be decrypted and restructuring obtains described file to be transmitted.
17. 1 kinds of document transmission systems, is characterized in that, comprising: the transmit leg equipment as described in claim 9-13 any one and the receiver equipment as described in claim 14-16 any one.
Priority Applications (1)
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| CN201510869823.2A CN105554062A (en) | 2015-11-30 | 2015-11-30 | Method, associated device and system of file transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510869823.2A CN105554062A (en) | 2015-11-30 | 2015-11-30 | Method, associated device and system of file transmission |
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| CN105554062A true CN105554062A (en) | 2016-05-04 |
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| CN201510869823.2A Pending CN105554062A (en) | 2015-11-30 | 2015-11-30 | Method, associated device and system of file transmission |
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| CN113271324A (en) * | 2020-02-14 | 2021-08-17 | 深圳市万普拉斯科技有限公司 | File transmission method and device, electronic equipment and readable storage medium |
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| CN106055286A (en) * | 2016-05-31 | 2016-10-26 | 成都数聚云信息技术有限公司 | Equipment and method for quickly and simply printing digital photograph of mobile terminal |
| CN106604272A (en) * | 2016-12-12 | 2017-04-26 | 深圳天珑无线科技有限公司 | Method and system for secret data transmission |
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| CN109039904A (en) * | 2018-08-01 | 2018-12-18 | 武汉绿色网络信息服务有限责任公司 | A kind of application method for routing and device |
| US12028914B2 (en) | 2018-09-30 | 2024-07-02 | Huawei Technologies Co., Ltd. | Data transfer method and electronic device |
| CN109510648A (en) * | 2019-01-25 | 2019-03-22 | 随锐科技股份有限公司 | Near-field information transmission method |
| CN110351808B (en) * | 2019-06-12 | 2021-05-07 | 东北石油大学 | File transmission processing method and device |
| CN110351808A (en) * | 2019-06-12 | 2019-10-18 | 东北石油大学 | Document transmission processing method and apparatus |
| CN110784939A (en) * | 2019-11-04 | 2020-02-11 | 上海庆科信息技术有限公司 | Data communication method, device and system |
| CN110784939B (en) * | 2019-11-04 | 2022-01-21 | 上海庆科信息技术有限公司 | Data communication method, device and system |
| WO2021104114A1 (en) * | 2019-11-25 | 2021-06-03 | 华为技术有限公司 | Method for providing wireless fidelity (wifi) network access service, and electronic device |
| CN113271324A (en) * | 2020-02-14 | 2021-08-17 | 深圳市万普拉斯科技有限公司 | File transmission method and device, electronic equipment and readable storage medium |
| WO2021160084A1 (en) * | 2020-02-14 | 2021-08-19 | 深圳市万普拉斯科技有限公司 | File transmission method and apparatus, electronic device, and readable storage medium |
| CN111654511A (en) * | 2020-07-13 | 2020-09-11 | 中国银行股份有限公司 | Chained data encryption method, chained data decryption method and corresponding systems |
| CN113364880A (en) * | 2021-06-18 | 2021-09-07 | 国家电网有限公司华东分部 | Information exchange method, system, electronic device and storage medium |
| CN115190535A (en) * | 2022-09-13 | 2022-10-14 | 北京安博通科技股份有限公司 | Data transmission method and related equipment |
| CN115190535B (en) * | 2022-09-13 | 2022-11-22 | 北京安博通科技股份有限公司 | Data transmission method and related equipment |
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