CN111083139A - Electronic product for network access and corresponding three-level double-access method - Google Patents
Electronic product for network access and corresponding three-level double-access method Download PDFInfo
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- CN111083139A CN111083139A CN201911280650.5A CN201911280650A CN111083139A CN 111083139 A CN111083139 A CN 111083139A CN 201911280650 A CN201911280650 A CN 201911280650A CN 111083139 A CN111083139 A CN 111083139A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
- H04L63/105—Multiple levels of security
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0892—Network architectures or network communication protocols for network security for authentication of entities by using authentication-authorization-accounting [AAA] servers or protocols
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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
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
Abstract
The invention provides an electronic product for network access and a corresponding three-level dual-access method, in the prior art, the network equipment access has a fraudulent use risk, for example, when an AAA server cannot be arranged, a key network access frame is easy to be tampered or falsely used after being stolen or a packet is intercepted, so that the network risk is caused. The invention uses the three-level network access long frame to carry out data separation control, can not independently obtain correct undecrypted transmission load under the condition of intercepting one frame or two frames of any three-level network access long frame, carries out authentication outside a domain by introducing a transmission identification server, and improves the comparison safety of the system by planning and designing the transmission identification.
Description
Technical Field
The invention belongs to the field of electronic equipment, and particularly relates to an electronic product for network access and a corresponding three-level double-access method.
Background
In the process of accessing the network, the electronic device generally needs to perform request feedback and information interaction through the access device.
Network access technology exists in various types of information exchange networks, such as home networks, connecting home end systems (e.g., PCs) with edge routers, including:
through dial-up modem (dial-up modem): the home end system is connected to the ISP through a normal analog telephone line using a dial-up modem. Is a common and popular form. The end system side: the home modem converts the digital signal output by the PC to analog form for transmission over an analog telephone line (twisted pair). The ISP side: the modem then converts the analog signal back to digital form as the ISP router input. Analog signals: data is represented by continuously varying electromagnetic waves, which may be transmitted over the link at different frequencies. Digital signal: data is represented by a series of voltage pulses, and "1" and "0" can be represented by positive and negative levels. Typically, modem rates can reach 56 kbit/s. But because the quality of the twisted pair is low, the effective rate obtained by the user is far lower than 56kbit/s, and the downloading time is long. For example, downloading a 3 minute MP3 song takes approximately 8 minutes, and the user cannot go on the internet and make a normal call at the same time.
Novel bandwidth access technology: higher bit rates are provided for residential users; the user can simultaneously access the internet and make a call. Two general types: digital Subscriber Line (DSL) and Hybrid Fiber Coaxial (HFC). (1) Digital subscriber line DSL access is provided by a telephone company or a company partnered with an independent ISP. The method is characterized in that: novel modem technology: similar to a dial-up modem; high rate transmission and reception of data: short distance transmission between the user and the ISP modem; download rate exceeds upload rate: downloading: from ISP router to home, e.g., at a rate exceeding l0 Mbit/s; uploading: from home to ISP, the actual implementation rate is low, e.g. the rate exceeds 1 Mbit/s. Using frequency division multiplexing: the communication link between the home and the ISP is divided into 3 non-overlapping frequency bands: a high-speed download channel, a medium-speed upload channel, and a normal two-way telephone channel. (2) The HFC is an improvement over conventional broadcast television cable systems. The traditional mode is as follows: cable head end (header) broadcasts are transmitted to the home through a distribution network of coaxial cables and amplifiers. HFC structure: the head end is connected to the connection point (optical fiber node) of the adjacent domain level by an optical cable by adopting a coaxial cable and optical fiber hybrid access mode, and then reaches each family residence by using the traditional cable. Each neighboring domain connection point supports 500 to 500 home users: with special modems (cable modems): the home PC is connected to a 10Base-T Ethernet (Ethernet) port, divided into two channels: namely a downlink channel and an uplink channel.
The downlink channel has larger bandwidth and higher transmission rate and is shared by all families; sharing the broadcast media: each packet sent by the head-end travels down each segment of the link to each home; if several users download at the same time, the actual rate of reception by each user drops significantly. Each packet sent by each home is transmitted to the head-end via an upstream channel. Several users sending packets at the same time will collide, reducing the utility of the upstream bandwidth. DSL establishes a point-to-point connection between the home and ISP, all bandwidth is dedicated and unshared; HFC is much higher than DSL bandwidth; DSL and HFC can provide services at any time: after the computer is opened, the user is always connected with the ISP and can make and receive ordinary calls at the same time.
In an enterprise office scenario, there is also a need for network access. The end users and edge routers are connected using a Local Area Network (LAN).
First, connect a plurality of end systems into a local area network: if the Ethernet technology (with the speed up to 10Mbps, 100Mbps, 1GMbps and 10Gbps) is adopted, the end systems are connected with each other by using twisted pair wires or coaxial cables;
reconnect to the edge router: the edge router is responsible for routing packets that are not destined for the local area network.
Ethernet technology:
shared ethernet: the end systems share the transmission rate of the Ethernet;
switched ethernet: and a plurality of twisted-pair Ethernet segments are connected with the switch, so that the whole bandwidth of the Ethernet can simultaneously transmit messages for different users on the same local area network.
In the process of accessing data transmission, there may be multiple channel Multiplexing modes, for example, Frequency Division Multiplexing (FDM) is a method for dividing the total bandwidth of a transmission channel into a plurality of sub-bands (or sub-channels), and each sub-channel transmits 1 channel of signals. The total frequency width of frequency division multiplexing is required to be larger than the sum of the frequencies of all the sub-channels, and meanwhile, in order to ensure that signals transmitted in all the sub-channels do not interfere with each other, an isolation band is required to be arranged among all the sub-channels, so that all the paths of signals are ensured not to interfere with each other (one of conditions). The frequency division multiplexing technology is characterized in that signals transmitted by all sub-channels work in a parallel mode, and transmission time delay can be not considered when each path of signals is transmitted, so that the frequency division multiplexing technology is widely applied. Frequency Division Multiplexing (FDM) is also an Orthogonal Frequency Division Multiplexing (OFDM) technique in addition to the conventional Frequency Division Multiplexing (FDM); time division multiplexing TDM is to transmit different signals in different time periods of the same physical connection, and can also achieve the purpose of multiplexing. Time division multiplexing uses time as a parameter for signal division, and therefore, it is necessary to prevent signals from overlapping each other on the time axis. Time-division multiplexing (TDM) divides the Time provided for the entire channel to transmit information into Time slices (or simply Time slots), and allocates these Time slots to each signal source. The basic idea of frequency division multiplexing is: the bandwidth of the signal to be transmitted is limited, and the bandwidth available for the line is much larger than that of the signal to be transmitted, and the modulated signals are staggered in frequency position by adopting a method of modulating the multiple signals with different frequencies, so that the purpose of simultaneously transmitting the multiple signals in one channel is achieved. Therefore, the respective signals of the frequency division multiplexing are signals which overlap in time and do not overlap in frequency spectrum.
The invention provides an electronic product for network access and a corresponding three-level double-access method, in the prior art, the network equipment access has the risk of misuse, although the access can be avoided by equipment authentication, AAA server and the like, under some special conditions, for example, when the AAA server and the system authentication server cannot be arranged, the key network access frame is easy to be tampered or falsely used after being stolen or intercepted by a capture packet, so that the network risk is caused. The invention uses three-level network access long frames to carry out data separation control, can not independently obtain correct undecrypted transmission load under the condition of intercepting one frame or two frames of any three-level network access long frames, provides higher safety performance, carries out authentication outside a domain by introducing a transmission identification server, improves the comparison safety of a system by planning and designing a transmission identification, and prevents data distortion by setting an isolation code. And the invention carries out dualization on the data transmission of the electronic equipment and the network access equipment, so as to prevent all data packets from being stolen and monitored under the condition that a single access equipment is cracked or broken, ensure that the data can be prevented from being cracked even under the condition that the single access equipment is cracked or broken, and improve the safety performance of the system.
Disclosure of Invention
The present invention is directed to an electronic device for a mobile communication transmitting end and a transmitting method thereof, which are superior to the related art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a three-level dual access method of an electronic product, the method comprising:
the electronic device sends a request to the first transmission identification server, the first transmission identification server obtains the authorized transmission identification of the device,
time division fragmentation with the length t is carried out on communication channels of the electronic equipment and the first access equipment and the electronic equipment and the second access equipment by adopting time division multiplexing;
and carrying out load frame framing on the fragmented channel according to a period T1, wherein T1 is integral multiple of T, carrying out control frame framing according to a period T2, T2 is integral multiple of T, carrying out signaling identification frame framing according to a period T3, the signaling identification frame at least comprises the authorized transmission identification of the equipment, T3 is integral multiple of T, and a complete long frame consists of a load frame, a control frame corresponding to the load frame and a signaling identification frame.
Cutting a long frame, and dividing a load frame and control frame data into two subframe types according to different parity bits, wherein the first type subframe comprises an even bit of the load frame, a control frame even bit corresponding to the load frame, and a complete signaling identification frame; the second type subframe comprises an odd bit of a load frame, a control frame odd bit corresponding to the odd bit and a complete signaling identification frame;
the electronic equipment performs primary transmission with the first access equipment and receives a first type subframe sent by the first access equipment, wherein a parameter X is received in a first block of a control frame1，X1Indicating the block sequence number of a signaling identification frame in a first type subframe which needs to be acquired during next-stage communication; after the first-stage transmission is finished and a long frame period is slept, requesting the first access equipment to perform second-stage transmission, receiving a second-stage transmission first-type subframe sent by the first access equipment, and receiving a parameter X based on a first block1Determining a corresponding sequence number block in the signaling identification frame, and acquiring a three-level transmission symmetric key B stored in the block; after the second level transmission is completed, sleep X1After a long frame period, requesting to perform third-level transmission to the first access equipment, and sending a third-level transmission long frame encrypted by a symmetric key B to the first access equipment, wherein a load frame of the third-level transmission long frame at least comprises network access information and access request header information, a signaling identification frame of the third-level transmission long frame at least comprises an authorized transmission identification of the electronic equipment, the first access equipment uses the key B known at the local end to perform symmetric decryption, acquires first access information comprising first network access information and first access request header information, and acquires the authorized transmission identification of the electronic equipment from the signaling identification frame of the third-level transmission long frame;
the first access equipment acquires the authorized transmission identifier of the electronic equipment from a first transmission identifier server, compares the authorized transmission identifier of the electronic equipment acquired from a signaling identifier frame of a third-level transmission long frame, if yes, allows the electronic equipment to perform network access, and transmits first access information including first network access information and first access request header information to third access equipment;
the electronic equipment and the second access equipment carry out primary transmission and receive a second type subframe sent by the second access equipment, wherein the parameter X is received in a first block of a control frame2，X2Indicating the block sequence number of a signaling identification frame in a second type subframe which needs to be acquired during next-stage communication; after the first-stage transmission is finished and a long frame period is slept, requesting a second-stage transmission to the second access equipment, receiving a second-stage transmission second-type subframe sent by the second access equipment, and receiving a parameter X based on the first block2Determining a corresponding sequence number block in the signaling identification frame, and acquiring a three-level transmission symmetric key K stored in the block; after the second level transmission is completed, sleep X2After the period of the long frame, requesting to perform third-level transmission to the second access device, and sending a third-level transmission long frame encrypted by a symmetric key K to the second access device, wherein a load frame of the third-level transmission long frame at least comprises network access information and access request header information, a signaling identification frame of the third-level transmission long frame at least comprises an authorized transmission identification of the electronic device, the second access device uses the key K known by a local terminal to perform symmetric decryption to obtain second access information, the second access information comprises second network access information and second access request header information, and the authorized transmission identification of the electronic device is obtained from the signaling identification frame of the third-level transmission long frame;
the second access equipment acquires the authorized transmission identifier of the electronic equipment from the first transmission identifier server, compares the authorized transmission identifier of the electronic equipment acquired from the signaling identifier frame of the third-level transmission long frame, if yes, allows the electronic equipment to perform network access, and transmits second access information including second network access information and second access request header information to third access equipment;
and the third access equipment inserts the network access information and the access request header information transmitted by the first access equipment and the second access equipment bit by bit according to the parity and the sequence to obtain complete network access information and access request header information, and performs network access on the electronic equipment according to the complete network access information and the access request header information to allow the electronic equipment to access an external network.
Preferably, the acquiring the transmission identifier specifically includes:
the first transmission identification server obtains a sending request timestamp field of the electronic equipment, and carries out bitwise XOR on the sending request timestamp field and a preset local fixed cyclic sequence to obtain an XOR result b1B is mixing1And obtaining the authorized transmission identifier of the equipment by the original MAC address of the back-connected electronic equipment.
Preferably, the preset local fixed cyclic sequence is set as follows:
and generating a random 8-bit binary group by adopting a random number generator, subsequently accessing a 6-bit isolation code, totaling 14 bits, and recycling the 14 bits of data until the length of the 14 bits of data is equal to the sending request timestamp field of the electronic equipment.
Preferably, the 6-bit isolation code specifically comprises:
000111；
or 111000.
Preferably, the third access device performs bit-by-bit insertion on the network access information and the access request header information transmitted by the first access device and the second access device according to parity and sequence to obtain complete network access information and access request header information, and the method specifically includes:
and according to the binary sequence ordering of the first access information, inserting the first access information into a second access information binary sequence bit by bit, wherein a second access information binary sequence symbol of a corresponding bit is inserted before each first access information binary sequence symbol to form complete network access information and access request header information.
In addition, the present invention provides an electronic device for network access, the device comprising:
a transmission identifier request unit for sending a request to the first transmission identifier server to acquire the transmission identifier authorized by the device,
the time division multiplexing part is used for carrying out time division fragmentation with the length t by adopting time division multiplexing with the communication channels of the first access equipment, the electronic equipment and the second access equipment;
and a slice part, wherein the sliced channel is subjected to load frame framing according to a period T1, T1 is an integral multiple of T, control frame framing is performed according to a period T2, T2 is an integral multiple of T, signaling identification frame framing is performed according to a period T3, the signaling identification frame at least comprises the authorized transmission identification of the equipment, T3 is an integral multiple of T, and a complete long frame consists of a load frame, a control frame corresponding to the load frame and a signaling identification frame.
The frame cutting part cuts the long frame, and divides the load frame and the control frame data into two subframe types according to different parity bits, wherein the first type subframe comprises an even bit of a load frame, a control frame even bit corresponding to the load frame, and a complete signaling identification frame; the second type subframe comprises an odd bit of a load frame, a control frame odd bit corresponding to the odd bit and a complete signaling identification frame;
a first access request part requesting for primary transmission with the first access device and receiving a first type subframe sent by the first access device, wherein the parameter X is received in a first block of a control frame1，X1Indicating the block sequence number of a signaling identification frame in a first type subframe which needs to be acquired during next-stage communication; after the first-stage transmission is finished and a long frame period is slept, requesting the first access equipment to perform second-stage transmission, receiving a second-stage transmission first-type subframe sent by the first access equipment, and receiving a parameter X based on a first block1Determining a corresponding sequence number block in the signaling identification frame, and acquiring a three-level transmission symmetric key B stored in the block; after the second level transmission is completed, sleep X1After a long frame period, requesting to perform third-level transmission to the first access equipment, and sending a third-level transmission long frame encrypted by a symmetric key B to the first access equipment, wherein a load frame of the third-level transmission long frame at least comprises network access information and access request header information, and a signaling identification frame of the third-level transmission long frame at least comprises the electronic equipmentThe first access device uses a key B known at the local terminal to carry out symmetric decryption to obtain first access information which comprises first network access information and first access request head information, and obtains the electronic device authorization transmission identifier from a signaling identifier frame of a third-level transmission long frame;
the first access equipment acquires the authorized transmission identifier of the electronic equipment from a first transmission identifier server, compares the authorized transmission identifier of the electronic equipment acquired from a signaling identifier frame of a third-level transmission long frame, if yes, allows the electronic equipment to perform network access, and transmits first access information including first network access information and first access request header information to third access equipment;
a second access request part requesting for primary transmission with the second access device and receiving the second type subframe sent by the second access device, wherein the parameter X is received in the first block of the control frame2，X2Indicating the block sequence number of a signaling identification frame in a second type subframe which needs to be acquired during next-stage communication; after the first-stage transmission is finished and a long frame period is slept, requesting a second-stage transmission to the second access equipment, receiving a second-stage transmission second-type subframe sent by the second access equipment, and receiving a parameter X based on the first block2Determining a corresponding sequence number block in the signaling identification frame, and acquiring a three-level transmission symmetric key K stored in the block; after the second level transmission is completed, sleep X2After the period of the long frame, requesting to perform third-level transmission to the second access device, and sending a third-level transmission long frame encrypted by a symmetric key K to the second access device, wherein a load frame of the third-level transmission long frame at least comprises network access information and access request header information, a signaling identification frame of the third-level transmission long frame at least comprises an authorized transmission identification of the electronic device, the second access device uses the key K known by a local terminal to perform symmetric decryption to obtain second access information, the second access information comprises second network access information and second access request header information, and the authorized transmission identification of the electronic device is obtained from the signaling identification frame of the third-level transmission long frame; second access equipment transmitting from firstThe identification transmission server acquires the authorized transmission identification of the electronic equipment, compares the authorized transmission identification of the electronic equipment acquired from the signaling identification frame of the third-level transmission long frame with the authorized transmission identification of the electronic equipment, if so, allows the electronic equipment to carry out network access, and transmits second access information including second network access information and second access request header information to third access equipment by the second access equipment; and the third access equipment inserts the network access information and the access request header information transmitted by the first access equipment and the second access equipment bit by bit according to the parity and the sequence to obtain complete network access information and access request header information, and performs network access on the electronic equipment according to the complete network access information and the access request header information to allow the electronic equipment to access an external network.
Preferably, the acquiring the transmission identifier specifically includes:
the first transmission identification server obtains a sending request timestamp field of the electronic equipment, and carries out bitwise XOR on the sending request timestamp field and a preset local fixed cyclic sequence to obtain an XOR result b1B is mixing1And obtaining the authorized transmission identifier of the equipment by the original MAC address of the back-connected electronic equipment.
Preferably, the preset local fixed cyclic sequence is set as follows:
and generating a random 8-bit binary group by adopting a random number generator, subsequently accessing a 6-bit isolation code, totaling 14 bits, and recycling the 14 bits of data until the length of the 14 bits of data is equal to the sending request timestamp field of the electronic equipment.
Preferably, the 6-bit isolation code specifically comprises:
000111；
or 111000.
Furthermore, the present invention also provides an access system, which includes any of the above electronic devices, a first access device, a second access device, a third access device, and a first transmission identifier server.
The invention is based on the system risk caused by single request transmission and single access device control in the prior access technology, skillfully uses three-level transmission, separates the access request and the load data after framing, and particularly provides an electronic product for network access and a corresponding three-level dual access method compared with the prior art. The invention uses the three-level network access long frame to carry out data separation control, can not independently obtain correct undecrypted transmission load under the condition of intercepting one frame or two frames of any three-level network access long frame, provides higher safety performance, carries out authentication outside a domain by introducing a transmission identification server, and improves the comparison safety of the system by planning and designing the transmission identification.
Drawings
Fig. 1 is a basic system diagram illustrating one embodiment of the claimed access system;
fig. 2 is a basic flow chart of a preferred embodiment of the three-level dual-access method of the electronic product for network access according to the present invention;
FIG. 3 is an example of a preferred embodiment of a default local fixed loop sequence structure shown in the present invention;
fig. 4 is a preferred embodiment of the present invention, which illustrates that the network access information and the access request header information transmitted by the third access device to the first access device and the second access device are inserted bit by bit according to parity and sequence to obtain complete network access information and access request header information.
Detailed Description
The following detailed description claims several embodiments and advantageous effects of an electronic product for network access and a corresponding three-level dual access method to help in a more detailed examination and decomposition of the present invention.
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, etc. may be used in embodiments of the invention to describe methods and corresponding apparatus, these keywords should not be limited to these terms. These terms are only used to distinguish keywords from each other. For example, the first access device, the first transmission identifier server, etc. may also be referred to as the second access device, the second transmission identifier server, and similarly, the second access device, the second transmission identifier server may also be referred to as the first access device, the first transmission identifier server, etc. without departing from the scope of the embodiments of the present invention.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
As shown in fig. 1, an access system claimed in the present invention comprises:
the system comprises the electronic equipment, a first access device, a second access device, a third access device and a first transmission identifier server.
The composition of the electronic device and the relationship with the first to third access devices and the transmission identification server will be shown below:
the electronic device includes:
a transmission identifier request unit for sending a request to the first transmission identifier server to acquire the transmission identifier authorized by the device,
the time division multiplexing part is used for carrying out time division fragmentation with the length t by adopting time division multiplexing with the communication channels of the first access equipment, the electronic equipment and the second access equipment;
and a slice part, wherein the sliced channel is subjected to load frame framing according to a period T1, T1 is an integral multiple of T, control frame framing is performed according to a period T2, T2 is an integral multiple of T, signaling identification frame framing is performed according to a period T3, the signaling identification frame at least comprises the authorized transmission identification of the equipment, T3 is an integral multiple of T, and a complete long frame consists of a load frame, a control frame corresponding to the load frame and a signaling identification frame.
The frame cutting part cuts the long frame, and divides the load frame and the control frame data into two subframe types according to different parity bits, wherein the first type subframe comprises an even bit of a load frame, a control frame even bit corresponding to the load frame, and a complete signaling identification frame; the second type subframe comprises an odd bit of a load frame, a control frame odd bit corresponding to the odd bit and a complete signaling identification frame;
a first access request part requesting for primary transmission with the first access device and receiving a first type subframe sent by the first access device, wherein the parameter X is received in a first block of a control frame1，X1Indicating the block sequence number of a signaling identification frame in a first type subframe which needs to be acquired during next-stage communication; after the first-stage transmission is finished and a long frame period is slept, requesting the first access equipment to perform second-stage transmission, receiving a second-stage transmission first-type subframe sent by the first access equipment, and receiving a parameter X based on a first block1Determining a corresponding sequence number block in the signaling identification frame, and acquiring a three-level transmission symmetric key B stored in the block; after the second level transmission is completed, sleep X1After a long frame period, requesting to perform third-level transmission to the first access equipment, and sending a third-level transmission long frame encrypted by a symmetric key B to the first access equipment, wherein a load frame of the third-level transmission long frame at least comprises network access information and access request header information, a signaling identification frame of the third-level transmission long frame at least comprises an authorized transmission identification of the electronic equipment, the first access equipment uses the key B known at the local end to perform symmetric decryption, acquires first access information comprising first network access information and first access request header information, and acquires the authorized transmission identification of the electronic equipment from the signaling identification frame of the third-level transmission long frame;
the first access equipment acquires the authorized transmission identifier of the electronic equipment from a first transmission identifier server, compares the authorized transmission identifier of the electronic equipment acquired from a signaling identifier frame of a third-level transmission long frame, if yes, allows the electronic equipment to perform network access, and transmits first access information including first network access information and first access request header information to third access equipment;
a second access request part requesting for primary transmission with the second access device and receiving the second type subframe sent by the second access device, wherein the parameter X is received in the first block of the control frame2，X2Indicating the block sequence number of a signaling identification frame in a second type subframe which needs to be acquired during next-stage communication; at the first stageAfter the transmission is finished, after sleeping for a long frame period, requesting the second access equipment to carry out second-level transmission, receiving a second-level transmission second-type subframe sent by the second access equipment, and based on a receiving parameter X in the first block2Determining a corresponding sequence number block in the signaling identification frame, and acquiring a three-level transmission symmetric key K stored in the block; after the second level transmission is completed, sleep X2After the period of the long frame, requesting to perform third-level transmission to the second access device, and sending a third-level transmission long frame encrypted by a symmetric key K to the second access device, wherein a load frame of the third-level transmission long frame at least comprises network access information and access request header information, a signaling identification frame of the third-level transmission long frame at least comprises an authorized transmission identification of the electronic device, the second access device uses the key K known by a local terminal to perform symmetric decryption to obtain second access information, the second access information comprises second network access information and second access request header information, and the authorized transmission identification of the electronic device is obtained from the signaling identification frame of the third-level transmission long frame; the second access equipment acquires the authorized transmission identifier of the electronic equipment from the first transmission identifier server, compares the authorized transmission identifier of the electronic equipment acquired from the signaling identifier frame of the third-level transmission long frame, if yes, allows the electronic equipment to perform network access, and transmits second access information including second network access information and second access request header information to third access equipment; and the third access equipment inserts the network access information and the access request header information transmitted by the first access equipment and the second access equipment bit by bit according to the parity and the sequence to obtain complete network access information and access request header information, and performs network access on the electronic equipment according to the complete network access information and the access request header information to allow the electronic equipment to access an external network.
As another preferred embodiment that can be superimposed, the acquiring of the transmission identifier specifically includes: the first transmission identification server obtains a sending request timestamp field of the electronic equipment, and carries out bitwise XOR on the sending request timestamp field and a preset local fixed cyclic sequence to obtain an XOR result b1B is mixing1Rear-connected electronic deviceAnd obtaining the authorized transmission identifier of the equipment by the original MAC address.
As another preferred embodiment that can be superimposed, the preset local fixed cyclic sequence is set as follows: and generating a random 8-bit binary group by adopting a random number generator, subsequently accessing a 6-bit isolation code, totaling 14 bits, and recycling the 14 bits of data until the length of the 14 bits of data is equal to the sending request timestamp field of the electronic equipment.
As another preferred embodiment that can be superimposed, the 6-bit isolation code specifically includes: 000111; or 111000.
Referring to fig. 2, the specification fig. 2 shows a basic flow chart of a preferred embodiment of the three-level dual-access method for network access of the electronic product of the present invention. The method comprises the following steps:
s102, the electronic device sends a request to a first transmission identification server, the first transmission identification server obtains the authorized transmission identification of the device,
s104, time division fragmentation with the length of t is carried out on communication channels of the electronic equipment and the first access equipment and the electronic equipment and the second access equipment by adopting time division multiplexing;
s106, carrying out load frame framing on the fragmented channel according to a period T1, carrying out control frame framing according to a period T2 with T1 being an integral multiple of T, carrying out signaling identification frame framing according to a period T3 with T2 being an integral multiple of T, wherein the signaling identification frame at least comprises the authorized transmission identification of the equipment, and T3 being an integral multiple of T, and a complete long frame consists of a load frame, a control frame corresponding to the load frame and a signaling identification frame.
S108, cutting the long frame, and dividing the load frame and the control frame data into two subframe types according to different parity bits, wherein the first type subframe comprises an even bit of the load frame, a control frame even bit corresponding to the load frame and a complete signaling identification frame; the second type subframe comprises an odd bit of a load frame, a control frame odd bit corresponding to the odd bit and a complete signaling identification frame;
s110, the electronic device and the first access device carry out primary transmission and connectionReceiving a first type subframe transmitted by a first access device, wherein a parameter X is received in a first block of a control frame1，X1Indicating the block sequence number of a signaling identification frame in a first type subframe which needs to be acquired during next-stage communication; after the first-stage transmission is finished and a long frame period is slept, requesting the first access equipment to perform second-stage transmission, receiving a second-stage transmission first-type subframe sent by the first access equipment, and receiving a parameter X based on a first block1Determining a corresponding sequence number block in the signaling identification frame, and acquiring a three-level transmission symmetric key B stored in the block; after the second level transmission is completed, sleep X1After a long frame period, requesting to perform third-level transmission to the first access equipment, and sending a third-level transmission long frame encrypted by a symmetric key B to the first access equipment, wherein a load frame of the third-level transmission long frame at least comprises network access information and access request header information, a signaling identification frame of the third-level transmission long frame at least comprises an authorized transmission identification of the electronic equipment, the first access equipment uses the key B known at the local end to perform symmetric decryption, acquires first access information comprising first network access information and first access request header information, and acquires the authorized transmission identification of the electronic equipment from the signaling identification frame of the third-level transmission long frame;
s112, the first access device acquires the authorized transmission identifier of the electronic device from the first transmission identifier server, compares the authorized transmission identifier of the electronic device acquired from the signaling identifier frame of the third-level transmission long frame, if yes, allows the electronic device to perform network access, and transmits first access information including first network access information and first access request header information to the third access device;
s114, the electronic equipment and the second access equipment carry out primary transmission and receive a second type subframe sent by the second access equipment, wherein the parameter X is received in a first block of a control frame2，X2Indicating the block sequence number of a signaling identification frame in a second type subframe which needs to be acquired during next-stage communication; after the first-stage transmission is finished and a long frame period is put to sleep, the second access equipment is requested to carry out the first stage transmissionSecond-level transmission, receiving second-level transmission second-type subframe sent by second access equipment, based on receiving parameter X in first block2Determining a corresponding sequence number block in the signaling identification frame, and acquiring a three-level transmission symmetric key K stored in the block; after the second level transmission is completed, sleep X2After the period of the long frame, requesting to perform third-level transmission to the second access device, and sending a third-level transmission long frame encrypted by a symmetric key K to the second access device, wherein a load frame of the third-level transmission long frame at least comprises network access information and access request header information, a signaling identification frame of the third-level transmission long frame at least comprises an authorized transmission identification of the electronic device, the second access device uses the key K known by a local terminal to perform symmetric decryption to obtain second access information, the second access information comprises second network access information and second access request header information, and the authorized transmission identification of the electronic device is obtained from the signaling identification frame of the third-level transmission long frame;
s118, the second access device acquires the authorized transmission identifier of the electronic device from the first transmission identifier server, compares the authorized transmission identifier of the electronic device acquired from the signaling identifier frame of the third-level transmission long frame, if yes, allows the electronic device to perform network access, and transmits second access information including second network access information and second access request header information to a third access device;
and S120, the third access equipment inserts the network access information and the access request header information transmitted by the first access equipment and the second access equipment bit by bit according to parity and sequence to obtain complete network access information and access request header information, and performs network access on the electronic equipment according to the complete network access information and the access request header information to allow the electronic equipment to access an external network.
As another preferred embodiment that can be superimposed, the acquiring of the transmission identifier specifically includes:
the first transmission identification server obtains a sending request timestamp field of the electronic equipment, and carries out bitwise XOR on the sending request timestamp field and a preset local fixed cyclic sequence to obtain an XOR result b1B is mixing1And obtaining the authorized transmission identifier of the equipment by the original MAC address of the back-connected electronic equipment.
Description figure 3 is an example of a preferred embodiment of the present invention showing a preset local fixed cyclic sequence structure;
as another preferred embodiment that can be superimposed, the preset local fixed cyclic sequence is set as follows, with reference to fig. 3:
and generating a random 8-bit binary group by adopting a random number generator, subsequently accessing a 6-bit isolation code, totaling 14 bits, and recycling the 14 bits of data until the length of the 14 bits of data is equal to the sending request timestamp field of the electronic equipment.
As another preferred embodiment that can be superimposed, the 6-bit isolation code specifically includes:
000111；
or 111000.
Description fig. 4 is a preferred embodiment of the present invention, which illustrates that a third access device inserts network access information and access request header information transmitted by the first access device and the second access device bit by bit according to parity and sequence to obtain complete network access information and access request header information;
as can be seen from fig. 4, as another preferred embodiment that can be superimposed, the third access device inserts the network access information and the access request header information transmitted by the first access device and the second access device bit by bit according to parity and sequence to obtain complete network access information and access request header information, and specifically includes:
and according to the binary sequence ordering of the first access information, inserting the first access information into a second access information binary sequence bit by bit, wherein a second access information binary sequence symbol of a corresponding bit is inserted before each first access information binary sequence symbol to form complete network access information and access request header information.
The invention is based on the system risk caused by single request transmission and single access device control in the prior access technology, skillfully uses three-level transmission, separates the access request and the load data after framing, and particularly provides an electronic product for network access and a corresponding three-level dual access method compared with the prior art. The invention uses the three-level network access long frame to carry out data separation control, can not independently obtain correct undecrypted transmission load under the condition of intercepting one frame or two frames of any three-level network access long frame, provides higher safety performance, carries out authentication outside a domain by introducing a transmission identification server, and improves the comparison safety of the system by planning and designing the transmission identification. In all the above embodiments, in order to meet the requirements of some special data transmission and read/write functions, the above method and its corresponding devices may add devices, modules, devices, hardware, pin connections or memory and processor differences to expand the functions during the operation process.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described method, apparatus and unit may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the method steps into only one logical or functional division may be implemented in practice in another manner, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as individual steps of the method, apparatus separation parts may or may not be logically or physically separate, or may not be physical units, and may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, the method steps, the implementation thereof, and the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above-described method and apparatus may be implemented as an integrated unit in the form of a software functional unit, which may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a Processor (Processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), an NVRAM, a magnetic disk, or an optical disk, and various media capable of storing program codes.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
It should be noted that: the above embodiments are only used to explain and illustrate the technical solution of the present invention more clearly, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A three-level dual access method of an electronic product, the method comprising:
the electronic device sends a request to the first transmission identification server, the first transmission identification server obtains the authorized transmission identification of the device,
time division fragmentation with the length t is carried out on communication channels of the electronic equipment and the first access equipment and the electronic equipment and the second access equipment by adopting time division multiplexing;
and carrying out load frame framing on the fragmented channel according to a period T1, wherein T1 is integral multiple of T, carrying out control frame framing according to a period T2, T2 is integral multiple of T, carrying out signaling identification frame framing according to a period T3, the signaling identification frame at least comprises the authorized transmission identification of the equipment, T3 is integral multiple of T, and a complete long frame consists of a load frame, a control frame corresponding to the load frame and a signaling identification frame.
Cutting a long frame, and dividing a load frame and control frame data into two subframe types according to different parity bits, wherein the first type subframe comprises an even bit of the load frame, a control frame even bit corresponding to the load frame, and a complete signaling identification frame; the second type subframe comprises odd bits of a load frame, odd bits of a control frame corresponding to the odd bits of the load frame and a complete signaling identification frame.
The electronic equipment performs primary transmission with the first access equipment and receives a first type subframe sent by the first access equipment, wherein a parameter X is received in a first block of a control frame1，X1Indicating the block sequence number of a signaling identification frame in a first type subframe which needs to be acquired during next-stage communication; after the first stage transmission is finishedAfter sleeping for a long frame period, requesting the first access device to perform a second transmission, receiving a second transmission first type subframe sent by the first access device, and receiving a parameter X in the first block1Determining a corresponding sequence number block in the signaling identification frame, and acquiring a three-level transmission symmetric key B stored in the block; after the second level transmission is completed, sleep X1After a long frame period, requesting to perform third-level transmission to the first access equipment, and sending a third-level transmission long frame encrypted by a symmetric key B to the first access equipment, wherein a load frame of the third-level transmission long frame at least comprises network access information and access request header information, a signaling identification frame of the third-level transmission long frame at least comprises an authorized transmission identification of the electronic equipment, the first access equipment uses the key B known at the local end to perform symmetric decryption, acquires first access information comprising first network access information and first access request header information, and acquires the authorized transmission identification of the electronic equipment from the signaling identification frame of the third-level transmission long frame;
the first access device acquires the authorized transmission identifier of the electronic device from the first transmission identifier server, compares the authorized transmission identifier of the electronic device acquired from the signaling identifier frame of the third-level transmission long frame, if yes, allows the electronic device to perform network access, and transmits first access information including first network access information and first access request header information to the third access device.
The electronic equipment and the second access equipment carry out primary transmission and receive a second type subframe sent by the second access equipment, wherein the parameter X is received in a first block of a control frame2，X2Indicating the block sequence number of a signaling identification frame in a second type subframe which needs to be acquired during next-stage communication; after the first-stage transmission is finished and a long frame period is slept, requesting a second-stage transmission to the second access equipment, receiving a second-stage transmission second-type subframe sent by the second access equipment, and receiving a parameter X based on the first block2Determining a corresponding sequence number block in the signaling identification frame, and acquiring a three-level transmission symmetric key K stored in the block; after the second stage of transmission is completed,sleep X2After the period of the long frame, requesting to perform third-level transmission to the second access device, and sending a third-level transmission long frame encrypted by a symmetric key K to the second access device, wherein a load frame of the third-level transmission long frame at least comprises network access information and access request header information, a signaling identification frame of the third-level transmission long frame at least comprises an authorized transmission identification of the electronic device, the second access device uses the key K known by a local terminal to perform symmetric decryption to obtain second access information, the second access information comprises second network access information and second access request header information, and the authorized transmission identification of the electronic device is obtained from the signaling identification frame of the third-level transmission long frame;
the second access equipment acquires the authorized transmission identifier of the electronic equipment from the first transmission identifier server, compares the authorized transmission identifier of the electronic equipment acquired from the signaling identifier frame of the third-level transmission long frame, if yes, allows the electronic equipment to perform network access, and transmits second access information including second network access information and second access request header information to third access equipment;
and the third access equipment inserts the network access information and the access request header information transmitted by the first access equipment and the second access equipment bit by bit according to the parity and the sequence to obtain complete network access information and access request header information, and performs network access on the electronic equipment according to the complete network access information and the access request header information to allow the electronic equipment to access an external network.
2. The three-level dual access method according to claim 1, wherein the acquiring the transmission identifier specifically includes:
the device grant transmission identification is associated with at least a transmit request timestamp field of the electronic device, a preset local fixed cycle sequence, and an original MAC address of the electronic device.
3. A three-level dual access method according to claim 2, wherein the preset local fixed cyclic sequence is set as follows:
and generating a random 8-bit binary group by adopting a random number generator, subsequently accessing a 6-bit isolation code, totaling 14 bits, and recycling the 14 bits of data until the length of the 14 bits of data is equal to the sending request timestamp field of the electronic equipment.
4. The three-level dual access method according to claim 3, wherein the 6-bit isolation code is specifically:
000111；
or 111000.
5. The three-level dual-access method according to claim 1, wherein the third access device inserts the network access information and the access request header information transmitted by the first access device and the second access device bit by bit according to parity and sequence to obtain complete network access information and access request header information, and specifically includes:
and according to the binary sequence ordering of the first access information, inserting the first access information into a second access information binary sequence bit by bit, wherein a second access information binary sequence symbol of a corresponding bit is inserted before each first access information binary sequence symbol to form complete network access information and access request header information.
6. An electronic device for network access, the device comprising:
a transmission identifier request unit for sending a request to the first transmission identifier server to acquire the transmission identifier authorized by the device,
the time division multiplexing part is used for carrying out time division fragmentation with the length t by adopting time division multiplexing with the communication channels of the first access equipment, the electronic equipment and the second access equipment;
and a slice part, wherein the sliced channel is subjected to load frame framing according to a period T1, T1 is an integral multiple of T, control frame framing is performed according to a period T2, T2 is an integral multiple of T, signaling identification frame framing is performed according to a period T3, the signaling identification frame at least comprises the authorized transmission identification of the equipment, T3 is an integral multiple of T, and a complete long frame consists of a load frame, a control frame corresponding to the load frame and a signaling identification frame.
The frame cutting part cuts the long frame, and divides the load frame and the control frame data into two subframe types according to different parity bits, wherein the first type subframe comprises an even bit of a load frame, a control frame even bit corresponding to the load frame, and a complete signaling identification frame; the second type subframe comprises an odd bit of a load frame, a control frame odd bit corresponding to the odd bit and a complete signaling identification frame;
a first access request part requesting for primary transmission with the first access device and receiving a first type subframe sent by the first access device, wherein the parameter X is received in a first block of a control frame1，X1Indicating the block sequence number of a signaling identification frame in a first type subframe which needs to be acquired during next-stage communication; after the first-stage transmission is finished and a long frame period is slept, requesting the first access equipment to perform second-stage transmission, receiving a second-stage transmission first-type subframe sent by the first access equipment, and receiving a parameter X based on a first block1Determining a corresponding sequence number block in the signaling identification frame, and acquiring a three-level transmission symmetric key B stored in the block; after the second level transmission is completed, sleep X1After a long frame period, requesting to perform third-level transmission to the first access equipment, and sending a third-level transmission long frame encrypted by a symmetric key B to the first access equipment, wherein a load frame of the third-level transmission long frame at least comprises network access information and access request header information, a signaling identification frame of the third-level transmission long frame at least comprises an authorized transmission identification of the electronic equipment, the first access equipment uses the key B known at the local end to perform symmetric decryption, acquires first access information comprising first network access information and first access request header information, and acquires the authorized transmission identification of the electronic equipment from the signaling identification frame of the third-level transmission long frame;
the first access equipment acquires the authorized transmission identifier of the electronic equipment from a first transmission identifier server, compares the authorized transmission identifier of the electronic equipment acquired from a signaling identifier frame of a third-level transmission long frame, if yes, allows the electronic equipment to perform network access, and transmits first access information including first network access information and first access request header information to third access equipment;
a second access request part requesting for primary transmission with the second access device and receiving the second type subframe sent by the second access device, wherein the parameter X is received in the first block of the control frame2，X2Indicating the block sequence number of a signaling identification frame in a second type subframe which needs to be acquired during next-stage communication; after the first-stage transmission is finished and a long frame period is slept, requesting a second-stage transmission to the second access equipment, receiving a second-stage transmission second-type subframe sent by the second access equipment, and receiving a parameter X based on the first block2Determining a corresponding sequence number block in the signaling identification frame, and acquiring a three-level transmission symmetric key K stored in the block; after the second level transmission is completed, sleep X2After the period of the long frame, requesting to perform third-level transmission to the second access device, and sending a third-level transmission long frame encrypted by a symmetric key K to the second access device, wherein a load frame of the third-level transmission long frame at least comprises network access information and access request header information, a signaling identification frame of the third-level transmission long frame at least comprises an authorized transmission identification of the electronic device, the second access device uses the key K known by a local terminal to perform symmetric decryption to obtain second access information, the second access information comprises second network access information and second access request header information, and the authorized transmission identification of the electronic device is obtained from the signaling identification frame of the third-level transmission long frame; the second access equipment acquires the authorized transmission identifier of the electronic equipment from the first transmission identifier server, compares the authorized transmission identifier of the electronic equipment acquired from the signaling identifier frame of the third-level transmission long frame, if yes, allows the electronic equipment to perform network access, and transmits second access information including second network access information and second access request header information to third access equipment; network access information and access request header information transmitted by third access equipment to first access equipment and second access equipmentAnd performing bit-by-bit insertion on the information according to the parity and the sequence to obtain complete network access information and access request header information, and performing network access on the electronic equipment according to the complete network access information and the access request header information to allow the electronic equipment to access an external network.
7. The electronic device of claim 6, wherein the obtaining of the transmission identifier is specifically:
the device grant transmission identification is associated with at least a transmit request timestamp field of the electronic device, a preset local fixed cycle sequence, and an original MAC address of the electronic device.
8. The electronic device of claim 6, wherein the preset local fixed cyclic sequence is set as follows:
and generating a random 8-bit binary group by adopting a random number generator, subsequently accessing a 6-bit isolation code, totaling 14 bits, and recycling the 14 bits of data until the length of the 14 bits of data is equal to the sending request timestamp field of the electronic equipment.
9. The electronic device of claim 6, wherein the 6-bit isolation code is specifically:
000111；
or 111000.
10. An access system comprising an electronic device according to any of claims 6-9, and a first access device, a second access device, a third access device and a first transport identity server.
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