CN107770018A - Communication means and equipment for serial communication system - Google Patents
Communication means and equipment for serial communication system Download PDFInfo
- Publication number
- CN107770018A CN107770018A CN201610691968.2A CN201610691968A CN107770018A CN 107770018 A CN107770018 A CN 107770018A CN 201610691968 A CN201610691968 A CN 201610691968A CN 107770018 A CN107770018 A CN 107770018A
- Authority
- CN
- China
- Prior art keywords
- communication equipment
- packet
- communication
- data path
- equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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]
- H04L12/40—Bus networks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
-
- 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]
- H04L12/42—Loop networks
Abstract
The purpose of the application is to provide a kind of communication means and equipment for serial communication system, the program changes in existing serial communication system connected mode between each communication equipment, using the ring topology of closed loop, so that each communication equipment is only established with other two communication equipments and connected, each communication equipment is when sending data, by a transmission of the unappropriated data path into two neighboring communication equipment, sent without other communication equipments in serially communication system.Thus, direct communication between non-conterminous two communication equipments can be dispersed to multiple communication equipments, the reception of data in the same time or transmission can be avoided to concentrate on some specific communication equipments, the possibility of transmitting-receiving queue congestion is reduced, can effectively reduce communication delay.
Description
Technical field
The application is related to areas of information technology, more particularly to a kind of communication means and equipment for serial communication system.
Background technology
MQTT (Message Queuing Telemetry Transport, message queue remote measurement transmission), XMPP
((Extensible Messaging and Presence Protocol, scalable message is with agreement being present), DDS (Data
Distribution Service for Real-Time Systems, towards the data distribution service of real-time system) etc. it is conventional
Internet of Things fidonetFido, the communication protocol being all built upon on ICP/IP protocol basis, do not support 8 of ICP/IP protocol/
It can not be used on the single-chip microcomputer of 16.And 8/16 single-chip microcomputers have cheap, stability compared to other processors
Height, the advantages that power saving, therefore largely used by industry and Internet of Things industry.
At present, the data communication generally use serial communication of the single-chip microcomputer of 8/16, such as UART (Universal
Asynchronous Receiver/Transmitter, universal asynchronous receiving-transmitting transmitter) connection is established, then sent to respective
Communication is completed in different instructions.In the serial communication system of routine, topological structure between each single-chip microcomputer as shown in figure 1,
When being communicated, each singlechip equipment can be connected and communicated with any one other singlechip equipment.Due to
Under the scene of serial communication, an equipment can only receive or send simultaneously a packet simultaneously, if receiving or sending collection
In in some equipment, it will cause receive and dispatch queue congestion so that communication delay increase.Such as equipment B, C, D are simultaneously to setting
Standby A sends packet, and now device A can only receive one by one.For device A in receiving device B packet, equipment C and equipment D are only
It can wait, and packet is sent without normal direction miscellaneous equipment, thus easily cause the congestion of each equipment transmitting-receiving queue so that logical
Letter delay is higher.
Apply for content
The purpose of the application is to provide a kind of communication means and equipment for serial communication system, existing to solve
There is the problem of technology easily causes data transmit-receive queue congestion, communication delay is higher.
To achieve the above object, this application provides a kind of communication means for serial communication system, wherein, the string
Row communication system includes multiple communication equipments, and the multiple communication equipment forms ring topology, between adjacent communication equipment
Connected by a data path setting, methods described includes：
First communication equipment sends data packets to the second communication equipment by unappropriated data path.
Further, the first communication equipment sends data packets to the second communication equipment by unappropriated data path
Before, in addition to：
First communication equipment generates checking token according to the public key of target communication device, wherein, the destinations traffic
Equipment is the transmission target of packet；
The packet of the first communication equipment generation comprising checking token and data content, wherein, the packet bag
The token containing checking and data content, the data content are decrypted in the checking token by the private key of the target communication device
After can be read.
Further, methods described also includes：
First communication equipment is when generation is comprising the packet for verifying token and data content, to the data content
It is encrypted.
The another kind that the application provides is used for the communication means of serial communication system, and the serial communication system includes multiple
Communication equipment, the multiple communication equipment form ring topology, built between adjacent communication equipment by a data path
Vertical connection, methods described include：
First communication equipment is by unappropriated data path from third communication equipment received data packet；
First communication equipment judges whether to meet preparatory condition according to the packet；
In judged result for when being, first communication equipment reads the data content in the packet.
The another kind that the application provides is used for the communication means of serial communication system, and the serial communication system includes multiple
Communication equipment, the multiple communication equipment form ring topology, built between adjacent communication equipment by a data path
Vertical connection, methods described include：
First communication equipment is by unappropriated data path from third communication equipment received data packet；
First communication equipment judges whether to meet preparatory condition according to the packet；
Judged result for it is no when, first communication equipment sends the packet to the by another data path
Two communication equipments.
Further, when judged result is no, first communication equipment leads to the packet by another data
Road is sent to the second communication equipment, including：
It is no in judged result, and when first communication equipment is not the source communication device of the packet, described
One communication equipment sends the packet to the second communication equipment by another data path, wherein, the source communication device
To generate the communication equipment of the packet.
Further, the packet is sent to the second communication and set by first communication equipment by another data path
It is standby, including：
If another data path is currently occupied, first communication equipment waits the data path unoccupied
Afterwards, the packet is sent to the second communication equipment by another data path.
Further, the preparatory condition includes：
First communication equipment uses checking token successful decryption of the private key of the first communication equipment to the packet,
Wherein, the packet includes checking token and data content, and the checking token is close according to the public key of target communication device
Generation.
A kind of the first communication equipment for serial communication system that the application provides, wherein, the serial communication system
Including multiple communication equipments, the multiple communication equipment forms ring topology, passes through a number between adjacent communication equipment
Connected according to path setting, the first communication equipment includes：
Dispensing device, for sending data packets to the second communication equipment by unappropriated data path.
Further, first communication equipment, in addition to：
Generating means, for before the second communication equipment is sent data packets to by unappropriated data path,
Checking token is generated according to the public key of target communication device, wherein, the target communication device is the transmission target of packet；With
And packet of the generation comprising checking token and data content, wherein, the data content is in the checking token by the mesh
It can be read after the private key decryption of mark communication equipment.
Further, the generating means, it is additionally operable to when generation is comprising the packet for verifying token and data content, it is right
The data content is encrypted.
The another kind that the application provides is used for the first communication equipment of serial communication system, and the serial communication system includes
Multiple communication equipments, the multiple communication equipment form ring topology, led between adjacent communication equipment by a data
Connection is established on road, and the first communication equipment includes：
Reception device, by unappropriated data path from third communication equipment received data packet；
Judgment means, for judging whether to meet preparatory condition according to the packet；
Data acquisition facility, for when judged result is to be, reading the data content in the packet.
The another kind that the application provides is used for the first communication equipment of serial communication system, and the serial communication system includes
Multiple communication equipments, the multiple communication equipment form ring topology, led between adjacent communication equipment by a data
Connection is established on road, and the first communication equipment includes：
Reception device, by unappropriated data path from third communication equipment received data packet；
Judgment means, for judging whether to meet preparatory condition according to the packet；
Dispensing device, for when judged result is no, the packet to be sent to second by another data path
Communication equipment.
Further, the dispensing device, for being no in judged result, and first communication equipment is not the number
According to bag source communication device when, first communication equipment by the packet by another data path send to second communication
Equipment, wherein, the source communication device is the communication equipment for generating the packet.
Further, the dispensing device, for when another data path is currently occupied, waiting described another
After data path is unoccupied, the packet is sent to the second communication equipment by the data path.
Further, the preparatory condition includes：
First communication equipment uses checking token successful decryption of the private key of the first communication equipment to the packet,
Wherein, the packet includes checking token and data content, and the checking token is close according to the public key of target communication device
Generation.
A kind of the first communication equipment for serial communication system that the present embodiment provides, the first communication equipment bag
Include：
Processor；And
It is arranged to store the memory of computer executable instructions, the executable instruction makes the place when executed
Manage device：Second communication equipment is sent data packets to by unappropriated data path.
A kind of the first communication equipment for serial communication system that the present embodiment provides, the first communication equipment bag
Include：
Processor；And
It is arranged to store the memory of computer executable instructions, the executable instruction makes the place when executed
Manage device：By unappropriated data path from third communication equipment received data packet；Judged whether according to the packet full
Sufficient preparatory condition；And in judged result for when being, first communication equipment reads the data content in the packet.
A kind of the first communication equipment for serial communication system that the present embodiment provides, the first communication equipment bag
Include：
Processor；And
It is arranged to store the memory of computer executable instructions, the executable instruction makes the place when executed
Manage device：By unappropriated data path from third communication equipment received data packet；Judged whether according to the packet full
Sufficient preparatory condition；And when judged result is no, the packet is sent to the second communication by another data path and set
It is standby.
Compared with prior art, the application changes in serial communication system connected mode between each communication equipment, adopts
With the ring topology of closed loop so that each communication equipment is only established with other two communication equipments to be connected, and each communication is set
It is standby that when sending data, by a unappropriated data path, one into two neighboring communication equipment sends, without
The other communication equipments understood in serially communication system are sent, and thus avoid the reception of data in the same time or send to concentrate
In some specific communication equipments, the possibility of transmitting-receiving queue congestion is reduced, can effectively reduce communication delay.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the topology diagram between each equipment in existing serial communication system；
Topology diagram in the scheme that Fig. 2 is provided by the embodiment of the present application between each equipment of serial communication system；
Fig. 3 is the process chart that communication equipment selects the data path for sending packet by way of poll；
Fig. 4 provides the process chart of the communication means for serial communication system for the embodiment of the present application；
Fig. 5 is the interaction schematic diagram to be communicated in the embodiment of the present application between multiple communication equipments；
Same or analogous reference represents same or analogous part in accompanying drawing.
Embodiment
The application is described in further detail below in conjunction with the accompanying drawings.
In one typical configuration of the application, terminal, the equipment of service network and trusted party include one or more
Processor (CPU), input/output interface, network interface and internal memory.
Internal memory may include computer-readable medium in volatile memory, random access memory (RAM) and/or
The forms such as Nonvolatile memory, such as read-only storage (ROM) or flash memory (flashRAM).Internal memory is showing for computer-readable medium
Example.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer-readable instruction, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), moved
State random access memory (DRAM), other kinds of random access memory (RAM), read-only storage (ROM), electric erasable
Programmable read only memory (EEPROM), fast flash memory bank or other memory techniques, read-only optical disc read-only storage (CD-ROM),
Digital versatile disc (DVD) or other optical storages, magnetic cassette tape, magnetic disk storage or other magnetic storage apparatus or
Any other non-transmission medium, the information that can be accessed by a computing device available for storage.Defined according to herein, computer
Computer-readable recording medium does not include non-temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.
The embodiment of the present application provides a kind of communication means for serial communication system, and the communication means is applicable serial logical
For the structure of letter system as shown in Fig. 2 including multiple communication equipments, the multiple communication equipment forms ring topology, adjacent
Connected between communication equipment by a data path setting.For simplicity, the communication equipment shown in figure is only used for other side
The principle of case illustrates, and its quantity is likely less than in actual scene the quantity of communication equipment in serial communication system, but this
Omit and be undoubtedly premised on not interfering with and carry out clear, sufficient disclosure to the present invention.
For ease of illustration the principle of this programme, any one communication in the serial communication system is chosen in the present embodiment
Equipment is led to as the first communication equipment, and using two communication equipments adjacent with first communication equipment as second
Believe equipment and third communication equipment.Because first, second, and third communication equipment is only used for representing each communication equipment
Difference in functionality in communication process, therefore in the serial communication system, any communication equipment and its adjacent communication equipment
First, second, and third communication equipment can be used as.
, can be using communication equipment A as the first communication equipment for the serial communication system shown in Fig. 2.Described second is logical
Letter equipment refers to the adjacent communication equipment for receiving the packet that first communication equipment is sent, because the serial communication system is adopted
With ring topology, therefore can be communication equipment B or communication for communication equipment A, corresponding second communication equipment
Equipment E.If communication equipment A sends packet by data path ab to communication equipment B, the communication equipment B is corresponding
Second communication equipment of this communication process.The third communication equipment is directed to first communication equipment and sends packet
Adjacent communication equipment, if communication equipment E sends packet by data path ae to communication equipment A, the communication equipment E is
To correspond to the third communication equipment of this communication process.
For any communication equipment, the communication of three kinds of forms can be at least realized in the serial communication system：1st, send out
The packet for giving oneself to generate；2nd, received data packet and data content is read；3rd, packet is forwarded.
That is the first communication means for being used for serial communication system, including：
First communication equipment sends data packets to the second communication equipment by unappropriated data path.If the number
Generated according to bag by the first communication equipment, when sending the packet, first communication equipment can select one of them not occupied
Data path is transmitted.By taking communication equipment A as an example, communication equipment A can adopt when sending the packet of oneself generation
Determine which data path is unoccupied with the mode of poll, such as according to default poll rule, first inquire about data path ab
It is whether occupied, if unoccupied, the packet is sent to communication equipment B by data path ab；If data path ab works as
Preceding occupied, then whether inquiry data path ae is current occupied, if data path ae is unoccupied, passes through data path ae
Packet is sent to communication equipment E, otherwise repeatedly said process, specific handling process can be found in Fig. 3.
The second communication equipment for receiving packet, then it can be selected according to the particular content of packet by the number
Forwarded or read data content therein according to bag, specific processing mode then need according to the information included in packet come
Judge.Therefore the first communication equipment is when generating packet, in addition to using the data content write-in as main body, it is also necessary to
Specific label information is write, so that the communication equipment received can judge to be read in the data in the packet accordingly
Hold, or directly forward the packet.
As a preferred embodiment, the first communication equipment sends out packet by unappropriated data path
Deliver to before the second communication equipment, in addition to：Checking token is generated according to the public key of target communication device, then generation is included and tested
Demonstrate,prove the packet of token and data content.Wherein, the target communication device is the transmission target of packet, such as communication equipment
A generation packets are to be used to inform a certain information to communication equipment C, therefore the packet finally needs to be sent to communication equipment
C, then the target communication device of the packet is communication equipment C.In addition, the data content verifies token by institute described
It can be read after stating the private key decryption of target communication device.
In embodiment, the checking token is specific label information, and its encrypting and decrypting is using public key and private key
Mode so that the second communication equipment for receiving the packet can interpolate that the data content read in the packet, or directly
Switch through and send out the packet.Second communication equipment preferentially parses the content of the checking token, attempted with certainly in received data packet
It is decrypted oneself private key, if decryption failure, then it represents that the public key of target communication device with its private key be it is unmatched, i.e.,
The target communication device of packet is not second communication equipment, therefore need not be further continued for parsing the remainder of packet, directly
Switch through and send out the packet, which thereby enhance the efficiency of processing.If successful decryption, then it represents that the public key of target communication device with
Its private key is matching, i.e. the target communication device of the packet is the second communication equipment, can now continue to parse its remaining part
Point, read data content.
In specific implementation process, in order to ensure to verify that the content of token can be received preferentially simultaneously during serial communication
Parsing, in the data structure of packet, the sequence location of the checking token is more forward compared to data content, i.e., described
Second communication equipment can be firstly received the byte of the checking token in received data packet.Further, since in packet
Data content is needed after the checking token is by the private key decryption of the target communication device, just can be read, therefore for nothing
The communication equipment that checking token is decrypted method can not read the data content in packet, which thereby enhance the peace of data
Quan Xing, altered data content and malice packet capturing etc. can be avoided.
The public key and the private key for decrypting the checking token that checking token is generated for encrypting can be in structure institutes
Distributed unitedly when stating serial communication system.Specifically, the crypto token can use the public key of target communication device to one group
Generation is encrypted in random string, in decryption, it is only necessary to the state of successful decryption or decryption failure is returned to, without obtaining
Take the random string specifically decrypted and obtained.As a kind of feasible embodiment, the public key of each communication equipment can be
The device id that each communication equipment is combined by one group of identical character string forms, and the private key of each communication equipment be then with it is described
One group of character string of public key match.Can only be by the private key solution of the communication equipment by the information of the public key encryption of a certain communication equipment
Close, vice versa.Thereby ensure that the security of data, and to receive packet communication equipment can with by whether
It can complete to decrypt, to judge whether it is the target communication device of the packet, and then select acquisition data content still to turn
Send out the packet.
Preferably, the first communication equipment data content can also be encrypted simultaneously, to enter one when generating packet
Step improves the security of data transfer.Appointing suitable for the serial communication scene can be used for the cipher mode of data content
Meaning mode, such as character string obscure encryption, public, private key encryption etc..
To realize received data packet and reading data content, the embodiment of the present application provides second and is used for serial communication system
The communication means of system, the handling process of this method include the partial content shown in Fig. 4, specifically include following steps：
Step S101, the first communication equipment is by unappropriated data path from third communication equipment received data packet；
Step S102, first communication equipment judge whether to meet preparatory condition according to the packet；
Step S103, in judged result for when being, first communication equipment reads the data content in the packet.
In this scenario, the packet can be generated by third communication equipment, and pass through unappropriated data path
Send to first communication equipment or generated by other communication equipments, and via the third communication device forwards
To first communication equipment.
Whether the communication equipment that the preparatory condition is used to determine to receive packet is that the destinations traffic of the packet is set
It is standby, if the determination result is YES, then it represents that the communication equipment for receiving packet is the target communication device of the packet, thus
Data content in read data packet.The preparatory condition can specifically use adds specific mark letter in the packet
The mode of breath so that receive the part label information that the communication equipment of packet can continue in packet and judged.
To achieve the above object, the label information can directly use the target address information of target communication device, and receiving device exists
When receiving packet, the target address information in address information and packet that can be by comparing the machine, to determine whether
Meet preparatory condition.But because which can not be protected to the data content in packet, Information Security is relatively
Difference.
Here, a kind of more reliable label information that the present embodiment provides is：Added using the public key of target communication device
It is dense into checking token.Thus, the preparatory condition is specially：First communication equipment uses the private of the first communication equipment
Checking token successful decryption of the key to the packet, wherein, the packet includes checking token and data content, described
Verify token according to the public key of target communication device it is dense into.First communication equipment uses the private key pair of the first communication equipment
The checking token of the packet is decrypted, because the checking token is encrypted using the public key of target communication device
Generation, if therefore successful decryption, then it represents that first communication equipment is target communication device.
Correspondingly, the packet in generation, to data content therein encrypted, then by corresponding communication equipment
It can use corresponding manner of decryption that data content is decrypted, so as to read data content.
To realize the forwarding of packet, the embodiment of the present application provides the third communication party for being used for serial communication system
Method, the handling process of the party include the partial content shown in Fig. 4, specifically include following steps：
Step S101, the first communication equipment is by unappropriated data path from third communication equipment received data packet；
Step S102, first communication equipment judge whether to meet preparatory condition according to the packet；
Step S104, when judged result is no, first communication equipment leads to the packet by another data
Road is sent to the second communication equipment.
Here, the preparatory condition and foregoing received data packet and identical when reading data content, are not repeated herein
Explanation.After packet is received, first communication equipment uses checking of the private key of the first communication equipment to the packet
Token is decrypted, because the checking token is that generation is encrypted using the public key of target communication device, if therefore decrypting
It is unsuccessful, then it represents that first communication equipment is not the target communication device of the packet, it is necessary to continue to set to other communications
Preparation is sent, so that the packet is sent to target communication device.
In the step S104, another data path is led to relative to the data of the first communication equipment received data packet
For road.It is different that the packet of generation is sent from active, the first communication equipment will not be selected to receive and is somebody's turn to do when forwarding packet
The data path of packet, and another data path will necessarily be selected, to ensure that packet will not be sent back to the third communication
Equipment.Therefore, when first communication equipment sends the packet to the second communication equipment by another data path, if
Another data path is currently occupied, after first communication equipment waits the data path unoccupied, by the number
Sent according to bag by the data path to the second communication equipment.By taking the serial communication system shown in Fig. 2 as an example, if communication equipment A
After the packet from communication equipment E is received by data path ae, it is determined that being unsatisfactory for preparatory condition, then it is bound to by another
A data path ab sends the packet to communication equipment B.
In actual scene, because the serial communication system employs the loop configuration of closed loop, it is therefore possible to exist with
Lower situation.After communication equipment A generates the packet that a target communication device is C, turn via communication equipment B to communication equipment C
The packet is sent out, due to the mistake in generation or transmission process communication equipment C may be caused can not to decrypt in the packet
Token is verified, now communication equipment C may proceed to be forwarded to communication equipment D, and then sends back to communication via communication equipment E and set
Standby A.Now, if communication equipment A continues to send, foregoing process can be circulated, thus will cause the waste of the communication resource, be
Above mentioned problem is avoided, the step S104, is specifically included：It is no in judged result, and first communication equipment is not described
During the source communication device of packet, first communication equipment, which sends the packet to second by another data path, to be led to
Believe equipment.
The source communication device is to generate the communication equipment of the packet, and the information of the source communication device can be
Write when generating packet, will thus when the first communication equipment is determining to be unsatisfactory for preparatory condition according to the content of packet
It may proceed to check the source communication device of packet, if this communication equipment is the source communication device for generating the packet,
Represent that the packet is transmitted across a circulation, the possibility of the packet is wrong, can now select to abandon the packet.
If this communication equipment is not the source communication device for generating the packet, then it represents that the packet may also be not sent to target and lead to
Believe equipment, continue to forward the packet.
Based on such scheme, if communication equipment A needs to send packet, Ke Yitong to its non-conterminous communication equipment C
Cross data path ae and send the packet to communication equipment E, and turned from communication equipment E by data path de to communication equipment D
After hair, then from communication equipment D by data path cd to communication equipment C send.In addition, communication equipment A can also pass through data
Path ab sends packet to communication equipment B, and is forwarded from communication equipment B by data path bc to communication equipment C.Actual field
Jing Zhong, communication equipment A send the direction of packet for the first time, are determined by the specific sending strategy of the communication equipment, for example with
The mode of poll inquires about currently where data path is unoccupied, and be transmitted by unappropriated data path.
Such scheme changes in existing serial communication system connected mode between each communication equipment, using the ring of closed loop
Shape topological structure so that each communication equipment is only established with other two communication equipments to be connected, and each communication equipment is sending number
According to when, by one into the two neighboring communication equipment transmission of a unappropriated data path, without serially leading to
Other communication equipments in letter system are sent.Thus, it is possible to by the direct communication between non-conterminous two communication equipments, disperse
To multiple communication equipments, the reception of data in the same time or transmission can be avoided to concentrate on some specific communication equipments,
The possibility of transmitting-receiving queue congestion is reduced, can effectively reduce communication delay.
Below in conjunction with the communication process between multiple communication equipments in the serial communication system shown in Fig. 2, to this programme
It is described in detail, communication equipment described in the system is single-chip microcomputer, is communicated between each communication equipment using UART, and
Identical communication protocol can be realized.Packet and progress of one target communication device as communication equipment C are generated using communication equipment A
Exemplified by the communication process of transmission, specific interaction as shown in figure 5, including：
Step S501, communication equipment A generate packet.In this process, it is random to one group using communication equipment C public key
Character string is encrypted, generation checking token, and the checking token and data content are packaged as into packet together.In addition, should
Target communication device (i.e. communication equipment C) letter related to source communication device (i.e. communication equipment A) can also be included in packet
Breath.
Step S502, communication equipment A inquire about current unappropriated data path by way of poll, determine that data are led to
Road ab is currently unoccupied.
Step S503, communication equipment A send packet by data path ab to communication equipment B.
Step S504, communication equipment B receive packet by data path ab, and first to the checking token in packet
It is decrypted.In decryption, using communication equipment B private key, because communication equipment B private key can not decrypt communication equipment C's
The data of public key encryption, therefore can not successful decryption.
Step S505, communication equipment B judge oneself whether be the packet source communication device.Due to the source of the packet
Communication equipment is communication equipment A, and now communication equipment B can determine that needs continue to forward the packet.
Step S506, communication equipment B forward the packet to communication equipment C by another data path ac.
Step S507, communication equipment C receive packet by data path ac, and first to the checking token in packet
It is decrypted.In decryption, using communication equipment C private key, because communication equipment C private key can decrypt communication equipment C's
The data of public key encryption, therefore successfully checking token can be decrypted.
Step S508, communication equipment C continue to parse packet, read data content therein, thus complete once complete
Communication process.
Based on same inventive concept, a variety of communications for serial communication system are additionally provided in the embodiment of the present application and are set
Standby, corresponding method is the communication means for serial communication system in previous embodiment, and it solves the principle of problem
It is similar to the communication means, therefore its serial communication system being applicable may refer to the system shown in Fig. 2, it is no longer heavy herein
Multiple explanation.
Based on above-mentioned serial communication system, present application example provides a kind of the first communication for serial communication system and set
Standby, to realize the packet for sending oneself generation, first communication equipment can be any in the serial communication system
Communication equipment, first communication equipment comprise at least：Dispensing device, for being sent out packet by unappropriated data path
Deliver to the second communication equipment.
If the packet is generated by the first communication equipment, when sending the packet, first communication equipment can select
One of them unappropriated data path is selected to be transmitted.By taking communication equipment A as an example, communication equipment A is sending oneself generation
Packet when, can determine which data path is unoccupied by the way of poll, for example, according to default poll rule,
Whether occupied first inquire about data path ab, if unoccupied, the data are sent to communication equipment B by data path ab
Bag；If data path ab is currently occupied, whether inquiry data path ae is current occupied, if data path ae is not occupied
With then by data path ae to communication equipment E transmission packets, otherwise repeatedly said process, specific handling process can be found in
Fig. 3.
The second communication equipment for receiving packet, then it can be selected according to the particular content of packet by the number
Forwarded or read data content therein according to bag, specific processing mode then need according to the information included in packet come
Judge.Therefore the first communication equipment is when generating packet, in addition to using the data content write-in as main body, it is also necessary to
Specific label information is write, so that the communication equipment received can judge to be read in the data in the packet accordingly
Hold, or directly forward the packet.
As a preferred embodiment, the first communication equipment also includes：Generating means.The generating means are used for logical
Cross unappropriated data path to send data packets to before the second communication equipment, generated according to the public key of target communication device
Token is verified, then packet of the generation comprising checking token and data content.Wherein, the target communication device is packet
Transmission target, such as communication equipment A generation packets are to be used to communication equipment C inform a certain information, therefore the packet
Finally need to be sent to communication equipment C, then the target communication device of the packet is communication equipment C.In addition, the number
It is can be read according to content after the checking token is by the private key decryption of the target communication device.
In embodiment, the checking token is specific label information, and its encrypting and decrypting is using public key and private key
Mode so that the second communication equipment for receiving the packet can interpolate that the data content read in the packet, or directly
Switch through and send out the packet.Second communication equipment preferentially parses the content of the checking token, attempted with certainly in received data packet
It is decrypted oneself private key, if decryption failure, then it represents that the public key of target communication device with its private key be it is unmatched, i.e.,
The target communication device of packet is not second communication equipment, therefore need not be further continued for parsing the remainder of packet, directly
Switch through and send out the packet, which thereby enhance the efficiency of processing.If successful decryption, then it represents that the public key of target communication device with
Its private key is matching, i.e. the target communication device of the packet is the second communication equipment, can now continue to parse its remaining part
Point, read data content.
In specific implementation process, in order to ensure to verify that the content of token can be received preferentially simultaneously during serial communication
Parsing, in the data structure of packet, the sequence location of the checking token is more forward compared to data content, i.e., described
Second communication equipment can be firstly received the byte of the checking token in received data packet.Further, since in packet
Data content is needed after the checking token is by the private key decryption of the target communication device, just can be read, therefore for nothing
The communication equipment that checking token is decrypted method can not read the data content in packet, which thereby enhance the peace of data
Quan Xing, altered data content and malice packet capturing etc. can be avoided.
The public key and the private key for decrypting the checking token that checking token is generated for encrypting can be in structure institutes
Distributed unitedly when stating serial communication system.Specifically, the crypto token can use the public key of target communication device to one group
Generation is encrypted in random string, in decryption, it is only necessary to the state of successful decryption or decryption failure is returned to, without obtaining
Take the random string specifically decrypted and obtained.As a kind of feasible embodiment, the public key of each communication equipment can be
The device id that each communication equipment is combined by one group of identical character string forms, and the private key of each communication equipment be then with it is described
One group of character string of public key match.Can only be by the private key solution of the communication equipment by the information of the public key encryption of a certain communication equipment
Close, vice versa.Thereby ensure that the security of data, and to receive packet communication equipment can with by whether
It can complete to decrypt, to judge whether it is the target communication device of the packet, and then select acquisition data content still to turn
Send out the packet.
Preferably, the generating means of the first communication equipment, can also be simultaneously to data content when generating packet
It is encrypted, further to improve the security of data transfer.It can be used for the cipher mode of data content suitable for being somebody's turn to do
The any-mode of serial communication scene, such as character string obscure encryption, public, private key encryption etc..
To realize received data packet and reading data content, the embodiment of the present application provides another kind and is used for serial communication system
First communication equipment of system, first communication equipment can be any communication equipment in the serial communication system, and this
One communication equipment comprises at least：
Reception device, by unappropriated data path from third communication equipment received data packet；
Judgment means, for judging whether to meet preparatory condition according to the packet；
Data acquisition facility, for when judged result is to be, reading the data content in the packet.
In this scenario, the packet can be generated by third communication equipment, and pass through unappropriated data path
Send to first communication equipment or generated by other communication equipments, and via the third communication device forwards
To first communication equipment.
Whether the communication equipment that the preparatory condition is used to determine to receive packet is that the destinations traffic of the packet is set
It is standby, if the determination result is YES, then it represents that the communication equipment for receiving packet is the target communication device of the packet, thus
Data content in read data packet.The preparatory condition can specifically use adds specific mark letter in the packet
The mode of breath so that receive the part label information that the communication equipment of packet can continue in packet and judged.
To achieve the above object, the label information can directly use the target address information of target communication device, and receiving device exists
When receiving packet, the target address information in address information and packet that can be by comparing the machine, to determine whether
Meet preparatory condition.But because which can not be protected to the data content in packet, Information Security is relatively
Difference.
Here, a kind of more reliable label information that the present embodiment provides is：Added using the public key of target communication device
It is dense into checking token.Thus, the preparatory condition is specially：First communication equipment uses the private of the first communication equipment
Checking token successful decryption of the key to the packet, wherein, the packet includes checking token and data content, described
Verify token according to the public key of target communication device it is dense into.First communication equipment uses the private key pair of the first communication equipment
The checking token of the packet is decrypted, because the checking token is encrypted using the public key of target communication device
Generation, if therefore successful decryption, then it represents that first communication equipment is target communication device.
Correspondingly, the packet in generation, to data content therein encrypted, then by corresponding communication equipment
It can use corresponding manner of decryption that data content is decrypted, so as to read data content.
To realize the forwarding of packet, the embodiment of the present application additionally provides another kind and led to for the first of serial communication system
Believe equipment, first communication equipment can be any communication equipment in the serial communication system, and first communication is set
It is standby to include：
Reception device, by unappropriated data path from third communication equipment received data packet；
Judgment means, for judging whether to meet preparatory condition according to the packet；
Dispensing device, for when judged result is no, the packet to be sent to second by another data path
Communication equipment.
Here, the preparatory condition and foregoing received data packet and identical when reading data content, are not repeated herein
Explanation.After packet is received, first communication equipment uses checking of the private key of the first communication equipment to the packet
Token is decrypted, because the checking token is that generation is encrypted using the public key of target communication device, if therefore decrypting
It is unsuccessful, then it represents that first communication equipment is not the target communication device of the packet, it is necessary to continue to set to other communications
Preparation is sent, so that the packet is sent to target communication device.
Another data path for sending packet is the data relative to the first communication equipment received data packet
For path.Different from the packet of active transmission generation, when forwarding packet, the first communication equipment will not select to receive
The data path of the packet, and another data path will necessarily be selected, to ensure that packet will not be sent back to threeway
Believe equipment.Therefore, the dispensing device, for when another data path is currently occupied, waiting another data
After path is unoccupied, the packet is sent to the second communication equipment by the data path.With serial logical shown in Fig. 2
Exemplified by letter system, if after communication equipment A receives the packet from communication equipment E by data path ae, it is determined that being unsatisfactory for
Preparatory condition, then it is bound to send the packet to communication equipment B by another data path ab.
In actual scene, because the serial communication system employs the loop configuration of closed loop, it is therefore possible to exist with
Lower situation.After communication equipment A generates the packet that a target communication device is C, turn via communication equipment B to communication equipment C
The packet is sent out, due to the mistake in generation or transmission process communication equipment C may be caused can not to decrypt in the packet
Token is verified, now communication equipment C may proceed to be forwarded to communication equipment D, and then sends back to communication via communication equipment E and set
Standby A.Now, if communication equipment A continues to send, foregoing process can be circulated, thus will cause the waste of the communication resource, be
Above mentioned problem is avoided, the dispensing device, specifically for being no in judged result, and first communication equipment is not the number
According to bag source communication device when, first communication equipment by the packet by another data path send to second communication
Equipment, wherein, the source communication device is the communication equipment for generating the packet.
The source communication device is to generate the communication equipment of the packet, and the information of the source communication device can be
Write when generating packet, will thus when the first communication equipment is determining to be unsatisfactory for preparatory condition according to the content of packet
It may proceed to check the source communication device of packet, if this communication equipment is the source communication device for generating the packet,
Represent that the packet is transmitted across a circulation, the possibility of the packet is wrong, can now select to abandon the packet.
If this communication equipment is not the source communication device for generating the packet, then it represents that the packet may also be not sent to target and lead to
Believe equipment, continue to forward the packet.
Based on such scheme, if communication equipment A needs to send packet, Ke Yitong to its non-conterminous communication equipment C
Cross data path ae and send the packet to communication equipment E, and turned from communication equipment E by data path de to communication equipment D
After hair, then from communication equipment D by data path cd to communication equipment C send.In addition, communication equipment A can also pass through data
Path ab sends packet to communication equipment B, and is forwarded from communication equipment B by data path bc to communication equipment C.Actual field
Jing Zhong, communication equipment A send the direction of packet for the first time, are determined by the specific sending strategy of the communication equipment, for example with
The mode of poll inquires about currently where data path is unoccupied, and be transmitted by unappropriated data path.
As another feasible embodiment, what the embodiment of the present application additionally provided other forms is used for serial communication system
First communication equipment of system, first communication equipment include：Processor；And it is arranged to store computer executable instructions
Memory.When realizing different disposal process, the executable instruction makes the computing device corresponding when executed
Operation, it is specific as follows：
When sending the packet of oneself generation, the executable instruction makes the processor when executed：By not
Occupied data path sends data packets to the second communication equipment.
In received data packet and data content is read, the executable instruction makes the processor when executed：Pass through
Unappropriated data path is from third communication equipment received data packet；Judged whether to meet default bar according to the packet
Part；And in judged result for when being, first communication equipment reads the data content in the packet.
When forwarding packet, the executable instruction makes the processor when executed：Pass through unappropriated number
According to path from third communication equipment received data packet；Judge whether to meet preparatory condition according to the packet；And judging
When being as a result no, the packet is sent to the second communication equipment by another data path.
In summary, such scheme changes in existing serial communication system connected mode between each communication equipment, adopts
With the ring topology of closed loop so that each communication equipment is only established with other two communication equipments to be connected, and each communication is set
It is standby that when sending data, by a unappropriated data path, one into two neighboring communication equipment sends, without
The other communication equipments understood in serially communication system are sent.Thus, it is possible to will be straight between non-conterminous two communication equipments
Connect letter, be dispersed to multiple communication equipments, can avoid the reception of data in the same time or transmission concentrate on it is some specific
Communication equipment, reduce transmitting-receiving queue congestion possibility, can effectively reduce communication delay.
It should be noted that the application can be carried out in the assembly of software and/or software and hardware, for example, can adopt
With application specific integrated circuit (ASIC), general purpose computer or any other realized similar to hardware device.In one embodiment
In, the software program of the application can realize steps described above or function by computing device.Similarly, the application
Software program (including related data structure) can be stored in computer readable recording medium storing program for performing, for example, RAM memory,
Magnetically or optically driver or floppy disc and similar devices.In addition, some steps or function of the application can employ hardware to realize, example
Such as, coordinate as with processor so as to perform the circuit of each step or function.
In addition, the part of the application can be applied to computer program product, such as computer program instructions, when its quilt
When computer performs, by the operation of the computer, it can call or provide according to the present processes and/or technical scheme.
And the programmed instruction of the present processes is called, it is possibly stored in fixed or moveable recording medium, and/or pass through
Broadcast or the data flow in other signal bearing medias and be transmitted, and/or be stored according to described program instruction operation
In the working storage of computer equipment.Here, including a device according to one embodiment of the application, the device includes using
Memory in storage computer program instructions and processor for execute program instructions, wherein, when the computer program refers to
When order is by the computing device, method and/or skill of the plant running based on foregoing multiple embodiments according to the application are triggered
Art scheme.
It is obvious to a person skilled in the art that the application is not limited to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit herein or essential characteristic, the application can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present application is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the application.Any reference in claim should not be considered as to the involved claim of limitation.This
Outside, it is clear that the word of " comprising " one is not excluded for other units or step, and odd number is not excluded for plural number.That is stated in device claim is multiple
Unit or device can also be realized by a unit or device by software or hardware.
Claims (19)
1. a kind of communication means for serial communication system, wherein, the serial communication system includes multiple communication equipments, institute
Multiple communication equipment composition ring topologies are stated, are connected between adjacent communication equipment by a data path setting, it is described
Method includes：
First communication equipment sends data packets to the second communication equipment by unappropriated data path.
2. according to the method for claim 1, wherein, the first communication equipment is by unappropriated data path by packet
Send to before the second communication equipment, in addition to：
First communication equipment generates checking token according to the public key of target communication device, wherein, the target communication device
For the transmission target of packet；
The packet of the first communication equipment generation comprising checking token and data content, wherein, the packet is included and tested
Token and data content are demonstrate,proved, the data content can after the checking token is by the private key decryption of the target communication device
Read.
3. according to the method for claim 2, wherein, methods described also includes：
First communication equipment is carried out when generation is comprising the packet for verifying token and data content to the data content
Encryption.
4. a kind of communication means for serial communication system, wherein, the serial communication system includes multiple communication equipments, institute
Multiple communication equipment composition ring topologies are stated, are connected between adjacent communication equipment by a data path setting, it is described
Method includes：
First communication equipment is by unappropriated data path from third communication equipment received data packet；
First communication equipment judges whether to meet preparatory condition according to the packet；
In judged result for when being, first communication equipment reads the data content in the packet.
5. a kind of communication means for serial communication system, wherein, the serial communication system includes multiple communication equipments, institute
Multiple communication equipment composition ring topologies are stated, are connected between adjacent communication equipment by a data path setting, it is described
Method includes：
First communication equipment is by unappropriated data path from third communication equipment received data packet；
First communication equipment judges whether to meet preparatory condition according to the packet；
When judged result is no, first communication equipment, which sends the packet to second by another data path, to be led to
Believe equipment.
6. according to the method for claim 5, wherein, judged result for it is no when, first communication equipment is by the number
Sent according to bag by another data path to the second communication equipment, including：
It is no in judged result, and when first communication equipment is not the source communication device of the packet, described first is logical
Letter equipment sends the packet to the second communication equipment by another data path, wherein, the source communication device is made a living
Into the communication equipment of the packet.
7. the method according to claim 5 or 6, wherein, the packet is passed through another number by first communication equipment
Sent according to path to the second communication equipment, including：
, will after first communication equipment waits the data path unoccupied if another data path is currently occupied
The packet is sent to the second communication equipment by another data path.
8. the method according to any one of claim 4 to 6, wherein, the preparatory condition includes：
First communication equipment uses checking token successful decryption of the private key of the first communication equipment to the packet, its
In, the packet includes checking token and data content, and the checking token is dense according to the public key of target communication device
Into.
9. a kind of the first communication equipment for serial communication system, wherein, the serial communication system includes multiple communications and set
Standby, the multiple communication equipment forms ring topology, is connected between adjacent communication equipment by a data path setting,
First communication equipment includes：
Dispensing device, for sending data packets to the second communication equipment by unappropriated data path.
10. the first communication equipment according to claim 9, wherein, first communication equipment, in addition to：
Generating means, for before the second communication equipment is sent data packets to by unappropriated data path, according to
The public key generation checking token of target communication device, wherein, the target communication device is the transmission target of packet；It is and raw
Into the packet for including checking token and data content, wherein, the data content is led in the checking token by the target
It can be read after the private key decryption of letter equipment.
11. the first communication equipment according to claim 10, wherein, the generating means, it is additionally operable to include in generation and tests
During the packet of card token and data content, the data content is encrypted.
12. a kind of the first communication equipment for serial communication system, wherein, the serial communication system includes multiple communications and set
Standby, the multiple communication equipment forms ring topology, is connected between adjacent communication equipment by a data path setting,
First communication equipment includes：
Reception device, by unappropriated data path from third communication equipment received data packet；
Judgment means, for judging whether to meet preparatory condition according to the packet；
Data acquisition facility, for when judged result is to be, reading the data content in the packet.
13. a kind of the first communication equipment for serial communication system, wherein, the serial communication system includes multiple communications and set
Standby, the multiple communication equipment forms ring topology, is connected between adjacent communication equipment by a data path setting,
First communication equipment includes：
Reception device, by unappropriated data path from third communication equipment received data packet；
Judgment means, for judging whether to meet preparatory condition according to the packet；
Dispensing device, for when judged result is no, the packet to be sent to the second communication by another data path
Equipment.
14. the first communication equipment according to claim 13, wherein, the dispensing device, for be in judged result it is no,
And first communication equipment, when not being the source communication device of the packet, first communication equipment leads to the packet
Another data path is crossed to send to the second communication equipment, wherein, the source communication device sets to generate the communication of the packet
It is standby.
15. the first communication equipment according to claim 13 or 14, wherein, the dispensing device, for described another
When data path is currently occupied, after waiting another data path unoccupied, the packet is led to by the data
Road is sent to the second communication equipment.
16. the first communication equipment according to any one of claim 12 to 14, wherein, the preparatory condition includes：
First communication equipment uses checking token successful decryption of the private key of the first communication equipment to the packet, its
In, the packet includes checking token and data content, and the checking token is dense according to the public key of target communication device
Into.
17. a kind of the first communication equipment for serial communication system, first communication equipment includes：
Processor；And
It is arranged to store the memory of computer executable instructions, the executable instruction makes the processing when executed
Device：Second communication equipment is sent data packets to by unappropriated data path.
18. a kind of the first communication equipment for serial communication system, first communication equipment includes：
Processor；And
It is arranged to store the memory of computer executable instructions, the executable instruction makes the processing when executed
Device：By unappropriated data path from third communication equipment received data packet；Judge whether to meet according to the packet
Preparatory condition；And in judged result for when being, first communication equipment reads the data content in the packet.
19. a kind of the first communication equipment for serial communication system, first communication equipment includes：
Processor；And
It is arranged to store the memory of computer executable instructions, the executable instruction makes the processing when executed
Device：By unappropriated data path from third communication equipment received data packet；Judge whether to meet according to the packet
Preparatory condition；And when judged result is no, the packet is sent to the second communication equipment by another data path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610691968.2A CN107770018B (en) | 2016-08-18 | 2016-08-18 | Communication method and device for serial communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610691968.2A CN107770018B (en) | 2016-08-18 | 2016-08-18 | Communication method and device for serial communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107770018A true CN107770018A (en) | 2018-03-06 |
| CN107770018B CN107770018B (en) | 2021-03-16 |
Family
ID=61263247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610691968.2A Active CN107770018B (en) | 2016-08-18 | 2016-08-18 | Communication method and device for serial communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107770018B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970183A (en) * | 2020-07-02 | 2020-11-20 | 杭州视芯科技有限公司 | Serial communication system and serial communication method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001358737A (en) * | 2000-06-14 | 2001-12-26 | Nec Corp | Loop network controlled synchronization system and method |
| CN1812361A (en) * | 2006-01-23 | 2006-08-02 | 杭州华为三康技术有限公司 | Fast ring network protecting method and system |
| CN105530206A (en) * | 2015-12-22 | 2016-04-27 | 合肥工业大学 | Torus network based dual-access structures and working mode thereof |
| CN105871929A (en) * | 2016-06-21 | 2016-08-17 | 重庆邮电大学 | Wireless sensor network anonymity communication method |
-
2016
- 2016-08-18 CN CN201610691968.2A patent/CN107770018B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001358737A (en) * | 2000-06-14 | 2001-12-26 | Nec Corp | Loop network controlled synchronization system and method |
| CN1812361A (en) * | 2006-01-23 | 2006-08-02 | 杭州华为三康技术有限公司 | Fast ring network protecting method and system |
| CN105530206A (en) * | 2015-12-22 | 2016-04-27 | 合肥工业大学 | Torus network based dual-access structures and working mode thereof |
| CN105871929A (en) * | 2016-06-21 | 2016-08-17 | 重庆邮电大学 | Wireless sensor network anonymity communication method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970183A (en) * | 2020-07-02 | 2020-11-20 | 杭州视芯科技有限公司 | Serial communication system and serial communication method |
| CN111970183B (en) * | 2020-07-02 | 2021-05-14 | 杭州视芯科技有限公司 | Serial communication system and serial communication method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107770018B (en) | 2021-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106301769B (en) | Quantum key output method, storage consistency verification method, device and system | |
| CN104283979B (en) | The method, apparatus and system of message transmissions in multicast domain name system | |
| RU2019102706A (en) | DYNAMIC PROTECTED COMMUNICATION NETWORK AND PROTOCOL | |
| US9137212B2 (en) | Communication method and apparatus using changing destination and return destination ID's | |
| CN104935593A (en) | Data message transmitting method and device | |
| CN105282138A (en) | Interest return control message | |
| EP3479540A1 (en) | Multi-hop secure content routing based on cryptographic partial blind signatures and embedded terms | |
| US10699031B2 (en) | Secure transactions in a memory fabric | |
| CN111786867B (en) | Data transmission method and server | |
| CN110324227A (en) | Data transmission method and vpn server in a kind of vpn server | |
| CN106790221A (en) | A kind of safe ipsec protocol encryption method of internet protocol and the network equipment | |
| CN114785622B (en) | Access control method, device and storage medium for multi-identification network | |
| CN106789008B (en) | Method, device and system for decrypting sharable encrypted data | |
| CN103874059A (en) | Method, device and system for message processing | |
| CN109412927A (en) | A kind of more VPN data transmission methods, device and the network equipment | |
| CN106161224B (en) | Method for interchanging data, device and equipment | |
| CN109361681A (en) | The close certificate authentication method of state, device and equipment | |
| KR20160050766A (en) | Apparatus and method for message communication | |
| CN107342964B (en) | A kind of message parsing method and equipment | |
| TW201101089A (en) | System and method for application identification and computer-readable medium thereof | |
| JP2013251883A (en) | Network relay apparatus and program | |
| CN102447626A (en) | Backbone network with policy driven routing | |
| JP2010171722A (en) | Network system with relay server, relay server, and program | |
| CN107770018A (en) | Communication means and equipment for serial communication system | |
| CN109039687A (en) | Load-balancing method, device, system, equipment and the storage medium of request |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |