CN115175110B - Method and system for rapidly distributing network for equipment based on multicast - Google Patents
Method and system for rapidly distributing network for equipment based on multicast Download PDFInfo
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- CN115175110B CN115175110B CN202210717225.3A CN202210717225A CN115175110B CN 115175110 B CN115175110 B CN 115175110B CN 202210717225 A CN202210717225 A CN 202210717225A CN 115175110 B CN115175110 B CN 115175110B
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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
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/08—User group management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
- H04W12/068—Authentication using credential vaults, e.g. password manager applications or one time password [OTP] applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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Abstract
The invention relates to a method and a system for rapidly distributing network of equipment based on multicast, in particular to the technical field of distribution network. The method comprises the following steps: the transmitting end encrypts the original distribution network information to obtain encrypted distribution network information; transmitting corresponding MAC frames to each multicast IP; the receiving end receives and reads all the MAC frames sent by the sending end; judging whether the target address in the MAC frame is a multicast MAC address corresponding to the target multicast IP, and judging whether the 4 th byte of the MAC address in the MAC frame is a flag byte; the target multicast IP is the multicast IP corresponding to the MAC frame; if yes, storing the data of the 6 th byte of the MAC address in the MAC frame according to the position in the 5 th byte to obtain a receiving encryption distribution network character corresponding to the MAC frame; determining the received encrypted distribution network characters corresponding to all the MAC frames as received encrypted distribution network information; and decrypting the received encrypted distribution network information to obtain the original distribution network information. The invention has convenient operation and higher efficiency.
Description
Technical Field
The invention relates to the technical field of distribution networks, in particular to a method and a system for rapidly distributing a network for equipment based on multicast.
Background
Along with the popularization of the internet of things, more and more devices are accessed to the internet through wifi, but many devices have no display screen, no keyboard and cannot be conveniently accessed to a router, so that the devices are required to be assisted to configure the network through mobile phones and the like.
Common distribution network methods include code scanning distribution network, softap distribution network, broadcast distribution network and the like, and the code scanning distribution network can only be used on equipment with cameras; the softap distribution network needs equipment to be in an AP mode firstly, the mobile phone is connected with the equipment to send distribution network information to the equipment, and then the equipment is converted into a station mode to be connected with a router, so that the operation is complicated; the broadcast distribution network transmits distribution network information by using the transmitted data length, so that the efficiency is low, and a distribution network method with convenient operation and high efficiency is needed.
Disclosure of Invention
The invention aims to provide a method and a system for rapidly distributing network for equipment based on multicast, which are convenient to operate and high in efficiency.
In order to achieve the above object, the present invention provides the following solutions:
a rapid network allocation method for multicast-based equipment comprises the following steps:
the transmitting end encrypts the original distribution network information to obtain encrypted distribution network information;
the sending end sends corresponding MAC frames to each multicast IP; one of the MAC frames includes one of the encrypted bytes; the encrypted byte is obtained by selecting one byte of the encrypted distribution network information; the multicast IP comprises the encrypted byte, a flag byte and a sequence number byte;
the receiving end receives and reads all the MAC frames sent by the sending end;
for any one MAC frame, a receiving end judges whether a target address in the MAC frame is a multicast MAC address corresponding to a target multicast IP, and whether a 4 th byte of the MAC address in the MAC frame is a flag byte; the target multicast IP is the multicast IP corresponding to the MAC frame;
if yes, the receiving end stores the data of the 6 th byte of the MAC address in the MAC frame according to the position of the 5 th byte of the MAC address in the MAC frame to obtain a receiving encryption distribution network character corresponding to the MAC frame;
the receiving end determines the received encrypted distribution network characters corresponding to all the MAC frames as the received encrypted distribution network information;
the receiving end decrypts the received encrypted distribution network information to obtain original distribution network information;
and the receiving end performs distribution network according to the original distribution network information obtained by decryption.
Optionally, the sending end sends the corresponding MAC frame to each multicast IP, which specifically includes:
the sending end selects one byte of the encrypted distribution network information to obtain encrypted bytes;
the sending end composes the encrypted byte, the flag byte and the sequence number byte into the multicast IP;
and the sending end continuously sends the MAC frame formed by the encrypted bytes to the multicast IP three times and returns the step of obtaining the encrypted bytes by the sending end optionally selecting one byte of the encrypted network allocation information until the encrypted network allocation information is sent.
Optionally, before the receiving end receives and reads all MAC frames sent by the sending end, the method further includes:
the receiving end enters the promiscuous mode.
Optionally, the original distribution network information includes: wifi's SSID, password, length, and check code.
A multicast-based device fast distribution network system comprising:
a transmitting end and a receiving end;
the transmitting end comprises:
the encryption module is used for encrypting the original distribution network information to obtain encrypted distribution network information;
a sending module, configured to send corresponding MAC frames to each multicast IP; one of the MAC frames includes one of the encrypted bytes; the encrypted byte is obtained by selecting one byte of the encrypted distribution network information; the multicast IP comprises the encrypted byte, a flag byte and a sequence number byte;
the receiving end comprises:
the receiving and reading module is used for receiving and reading all the MAC frames sent by the sending end;
the judging module is used for judging whether the target address in any MAC frame is a multicast MAC address corresponding to the target multicast IP and whether the 4 th byte of the MAC address in the MAC frame is a flag byte; the target multicast IP is the multicast IP corresponding to the MAC frame;
the storage module is used for storing the data of the 6 th byte of the MAC address in the MAC frame according to the position of the 5 th byte of the MAC address in the MAC frame if the data of the 6 th byte of the MAC address in the MAC frame is the same as the data of the 5 th byte of the MAC address in the MAC frame, so that the received encrypted distribution network character corresponding to the MAC frame is obtained;
the receiving module is used for determining the received encrypted distribution network characters corresponding to all the MAC frames as received encrypted distribution network information;
the decryption module is used for decrypting the received encrypted distribution network information to obtain original distribution network information;
and the distribution network module is used for distributing the network according to the original distribution network information obtained by decryption.
Optionally, the sending module specifically includes:
an encrypted byte determining unit, configured to obtain encrypted bytes from the encrypted distribution network information of an optional byte;
a multicast IP determining unit, configured to combine the encrypted byte, the flag byte and the sequence number byte into the multicast IP;
a sending unit, configured to continuously send, to the multicast IP, a MAC frame composed of the encrypted bytes for three times;
and the repeated execution module is used for repeatedly executing the encryption byte determining unit, the multicast IP determining unit and the sending unit until the encryption distribution network information is sent.
Optionally, the original distribution network information includes: wifi's SSID, password, length, and check code.
Optionally, the receiving and reading module includes:
a mode unit, configured to make the receiving end in a promiscuous mode;
and the receiving and reading unit is used for receiving and reading all the MAC frames sent by the sending end in the promiscuous mode.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: the transmitting end encrypts the original distribution network information to obtain encrypted distribution network information; the sending end sends corresponding MAC frames to each multicast IP; the receiving end receives and reads all the MAC frames sent by the sending end; for any one MAC frame, the receiving end judges whether the target address in the MAC frame is a multicast MAC address corresponding to the target multicast IP, and whether the 4 th byte of the MAC address in the MAC frame is a flag byte; the target multicast IP is the multicast IP corresponding to the MAC frame; if yes, the receiving end stores the data of the 6 th byte of the MAC address in the MAC frame according to the position of the 5 th byte of the MAC address in the MAC frame to obtain a receiving encryption distribution network character corresponding to the MAC frame; the receiving end determines the received encrypted distribution network characters corresponding to all the MAC frames as the received encrypted distribution network information; the receiving end decrypts the received encrypted distribution network information to obtain original distribution network information; the receiving end carries out network distribution according to the original network distribution information obtained by decryption, and a multicast network distribution method is used, so that the operation is convenient and the efficiency is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for rapidly configuring a network for a device based on multicast according to an embodiment of the present invention;
fig. 2 is a schematic workflow diagram of a method for fast network allocation of multicast-based devices according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1, an embodiment of the present invention provides a method for rapidly configuring a network for a device based on multicast, including:
step 101: the transmitting end encrypts the original distribution network information to obtain encrypted distribution network information.
Step 102: the transmitting end transmits the corresponding MAC frame to each multicast IP. One of the MAC frames includes one of the encrypted bytes; the encrypted byte is obtained by selecting one byte of the encrypted distribution network information; the multicast IP includes the encrypted byte, flag byte, and sequence number byte.
Step 103: and the receiving end receives and reads all the MAC frames sent by the sending end.
Step 104: for any one MAC frame, the receiving end judges whether the target address in the MAC frame is a multicast MAC address corresponding to the target multicast IP, and whether the 4 th byte of the MAC address in the MAC frame is a flag byte. The target multicast IP is the multicast IP corresponding to the MAC frame.
Step 105: if yes, the receiving end stores the data of the 6 th byte of the MAC address in the MAC frame according to the position of the 5 th byte of the MAC address in the MAC frame to obtain the receiving encryption distribution network character corresponding to the MAC frame.
Step 106: and the receiving end determines the received encrypted distribution network characters corresponding to all the MAC frames as the received encrypted distribution network information.
Step 107: and the receiving end decrypts the received encrypted distribution network information to obtain the original distribution network information.
Step 108: and the receiving end performs distribution network according to the original distribution network information obtained by decryption.
Step 109, if not, discarding the received MAC frame.
In practical application, the sending end sends corresponding MAC frames to each multicast IP, which specifically includes:
and the sending end optionally obtains the encrypted byte by one byte of the encrypted distribution network information.
And the sending end composes the encrypted byte, the flag byte and the sequence number byte into the multicast IP.
And the sending end continuously sends the MAC frame formed by the encrypted bytes to the multicast IP three times and returns the step of obtaining the encrypted bytes by the sending end optionally selecting one byte of the encrypted network allocation information until the encrypted network allocation information is sent.
In practical application, before the receiving end receives and reads all the MAC frames sent by the sending end, the method further includes:
the receiving end enters the promiscuous mode.
In practical application, the original distribution network information includes: wifi's SSID, password, length, and check code.
The embodiment of the invention provides a more specific method for rapidly distributing network for multicast-based equipment, which comprises the following specific steps as shown in fig. 2:
step 1: encryption. The sending end encrypts distribution network information to be sent, wherein the distribution network information comprises data such as SSID, password, length, check code and the like of wifi.
Step 2: encoding. The sending end takes one byte of encrypted distribution network information and forms multicast IP together with the flag byte and the serial number byte. The generated multicast IP structure: 239.Xx. Yyy. Zzz, where xx is a flag byte, such as the distribution network information data flag 39, the end flag 93; yyy is a sequence number byte; zzz is a data byte, and the value of the data byte in the end message is the distribution network data length. The end message consists of an end flag byte and a distribution network information length, and whether the received data length is equal to the data length in the end message needs to be verified after the received message is received.
Step 3: and (5) transmitting. The transmitting end transmits any one byte of distribution network data to the multicast IP generated in the previous step, and continuously transmits the data for 3 times, then repeats the steps 2 and 3 until all the data are transmitted, and finally transmits a message of ending the transmission.
Step 4: and (5) receiving. The receiving end presses the distribution key to enter a distribution mode, and the wireless network card of the receiving end enters a hybrid mode.
Step 5: decoding. The receiving end reads the received MAC frame, checks whether the target address is a multicast MAC address, and checks whether the 4 th byte of the MAC address in the MAC frame is a flag byte.
Step 6: and if the fifth step of verification is passed, storing the 6 th byte data of the MAC address in the MAC frame according to the position formulated by the 5 th byte of the MAC address in the MAC frame.
Step 7: and the receiving end judges whether an ending message is received or not, if not, the step 4-7 is continuously repeated, and otherwise, the step 8 is entered.
Step 8: decrypting. And after receiving the end flag byte, decrypting the received data to recover the original distribution network information.
Step 9: and (5) connection. If the network is connected through the received distribution network information, a message of successful distribution network is sent to the equipment.
Aiming at the method, the embodiment of the invention provides a rapid equipment network distribution system based on multicast, which comprises the following steps:
a transmitting end and a receiving end.
The transmitting end comprises:
and the encryption module is used for encrypting the original distribution network information to obtain the encrypted distribution network information.
A sending module, configured to send corresponding MAC frames to each multicast IP; one of the MAC frames includes one of the encrypted bytes; the encrypted byte is obtained by selecting one byte of the encrypted distribution network information; the multicast IP includes the encrypted byte, flag byte, and sequence number byte.
The receiving end comprises:
and the receiving and reading module is used for receiving and reading all the MAC frames sent by the sending end.
The judging module is used for judging whether the target address in any MAC frame is a multicast MAC address corresponding to the target multicast IP and whether the 4 th byte of the MAC address in the MAC frame is a flag byte; the target multicast IP is the multicast IP corresponding to the MAC frame.
And the storage module is used for storing the data of the 6 th byte of the MAC address in the MAC frame according to the position of the 5 th byte of the MAC address in the MAC frame if the data of the 6 th byte of the MAC address in the MAC frame is the same, so as to obtain the received encrypted distribution network character corresponding to the MAC frame.
And the receiving module is used for determining the received encrypted distribution network characters corresponding to all the MAC frames as the received encrypted distribution network information.
And the decryption module is used for decrypting the received encrypted distribution network information to obtain the original distribution network information.
And the distribution network module is used for distributing the network according to the original distribution network information obtained by decryption.
Optionally, the sending module specifically includes:
and the encryption byte determining unit is used for obtaining encryption bytes from the encryption distribution network information of one optional byte.
And the multicast IP determining unit is used for combining the encrypted byte, the flag byte and the sequence number byte into the multicast IP.
And the sending unit is used for continuously sending the MAC frame formed by the encrypted bytes to the multicast IP three times.
And the repeated execution module is used for repeatedly executing the encryption byte determining unit, the multicast IP determining unit and the sending unit until the encryption distribution network information is sent.
Optionally, the original distribution network information includes: wifi's SSID, password, length, and check code.
Optionally, the receiving and reading module includes:
a mode unit, configured to make the receiving end in a promiscuous mode;
and the receiving and reading unit is used for receiving and reading all the MAC frames sent by the sending end in the promiscuous mode.
The invention uses the multicast mode, and has small data volume, small occupied network bandwidth, high network distribution speed and high efficiency compared with the broadcast mode. And the same data is sent for a plurality of times in the step 3 on the design of the multicast message, and the storage according to the position formulated by the bytes in the step 6 considers the problems of unreliable multicast message, out-of-order message and the like, thereby improving the success rate of the distribution network.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (7)
1. The method for rapidly distributing the network for the multicast-based equipment is characterized by comprising the following steps of:
the transmitting end encrypts the original distribution network information to obtain encrypted distribution network information;
the sending end sends corresponding MAC frames to each multicast IP; one of the MAC frames includes an encrypted byte; the encrypted byte is obtained by selecting one byte of the encrypted distribution network information; the multicast IP comprises the encrypted byte, a flag byte and a sequence number byte;
the receiving end receives and reads all the MAC frames sent by the sending end;
for any one MAC frame, a receiving end judges whether a target address in the MAC frame is a multicast MAC address corresponding to a target multicast IP, and whether a 4 th byte of the MAC address in the MAC frame is a flag byte; the target multicast IP is the multicast IP corresponding to the MAC frame;
if yes, the receiving end stores the data of the 6 th byte of the MAC address in the MAC frame according to the position of the 5 th byte of the MAC address in the MAC frame to obtain a receiving encryption distribution network character corresponding to the MAC frame;
the receiving end determines the received encrypted distribution network characters corresponding to all the MAC frames as the received encrypted distribution network information;
the receiving end decrypts the received encrypted distribution network information to obtain original distribution network information;
the receiving end carries out distribution network according to the original distribution network information obtained by decryption;
before the receiving end receives and reads all the MAC frames sent by the sending end, the method further includes:
the receiving end enters the promiscuous mode.
2. The method for rapidly configuring a network for a multicast-based device according to claim 1, wherein the sending end sends the corresponding MAC frame to each multicast IP, specifically includes:
the sending end selects one byte of the encrypted distribution network information to obtain encrypted bytes;
the sending end composes the encrypted byte, the flag byte and the sequence number byte into the multicast IP;
and the sending end continuously sends the MAC frame formed by the encrypted bytes three times to the multicast IP and returns the step of obtaining the encrypted bytes by the sending end optionally selecting one byte of the encrypted network allocation information until the encrypted network allocation information is sent.
3. The method for rapid network allocation for multicast-based devices according to claim 1, wherein the original network allocation information comprises: wifi's SSID, password, length, and check code.
4. A multicast-based device fast distribution network system, comprising:
a transmitting end and a receiving end;
the transmitting end comprises:
the encryption module is used for encrypting the original distribution network information to obtain encrypted distribution network information;
a sending module, configured to send corresponding MAC frames to each multicast IP; one of the MAC frames includes an encrypted byte; the encrypted byte is obtained by selecting one byte of the encrypted distribution network information; the multicast IP comprises the encrypted byte, a flag byte and a sequence number byte;
the receiving end comprises:
the receiving and reading module is used for entering a hybrid mode and receiving and reading all the MAC frames sent by the sending end;
the judging module is used for judging whether the target address in any MAC frame is a multicast MAC address corresponding to the target multicast IP and whether the 4 th byte of the MAC address in the MAC frame is a flag byte; the target multicast IP is the multicast IP corresponding to the MAC frame;
the storage module is used for storing the data of the 6 th byte of the MAC address in the MAC frame according to the position of the 5 th byte of the MAC address in the MAC frame if the data of the 6 th byte of the MAC address in the MAC frame is the same as the data of the 5 th byte of the MAC address in the MAC frame, so that the received encrypted distribution network character corresponding to the MAC frame is obtained;
the receiving module is used for determining the received encrypted distribution network characters corresponding to all the MAC frames as received encrypted distribution network information;
the decryption module is used for decrypting the received encrypted distribution network information to obtain original distribution network information;
and the distribution network module is used for distributing the network according to the original distribution network information obtained by decryption.
5. The rapid network allocation system of multicast-based device according to claim 4, wherein the sending module specifically comprises:
an encrypted byte determining unit, configured to obtain encrypted bytes from the encrypted distribution network information of an optional byte;
a multicast IP determining unit, configured to combine the encrypted byte, the flag byte and the sequence number byte into the multicast IP;
a sending unit, configured to continuously send, to the multicast IP, a MAC frame composed of the encrypted bytes three times;
and the repeated execution module is used for repeatedly executing the encryption byte determining unit, the multicast IP determining unit and the sending unit until the encryption distribution network information is sent.
6. The rapid distribution network system of multicast-based apparatuses according to claim 4, wherein the original distribution network information includes: wifi's SSID, password, length, and check code.
7. The rapid distribution network system of multicast-based apparatuses according to claim 4, wherein the receiving and reading module comprises:
a mode unit, configured to make the receiving end in a promiscuous mode;
and the receiving and reading unit is used for receiving and reading all the MAC frames sent by the sending end in the promiscuous mode.
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