CN110944009B - Data dynamic encryption communication method and system based on two-wire system communication - Google Patents
Data dynamic encryption communication method and system based on two-wire system communication Download PDFInfo
- Publication number
- CN110944009B CN110944009B CN201911280112.6A CN201911280112A CN110944009B CN 110944009 B CN110944009 B CN 110944009B CN 201911280112 A CN201911280112 A CN 201911280112A CN 110944009 B CN110944009 B CN 110944009B
- Authority
- CN
- China
- Prior art keywords
- data
- encryption
- dynamic
- encrypted
- dynamic random
- 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.)
- Active
Links
Images
Classifications
-
- 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
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0478—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload applying multiple layers of encryption, e.g. nested tunnels or encrypting the content with a first key and then with at least a second key
-
- 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
- H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
- H04L63/1441—Countermeasures against malicious traffic
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a data dynamic encryption communication method based on two-wire system communication, which comprises the steps of encrypting and sending data of a main node device and receiving and responding data of a slave node device, wherein the data encryption and sending processes of the main node device are as follows: encrypting data to be transmitted by adopting a fixed encryption mode, then transmitting a random dynamic key, carrying out secondary encryption on the data by using the random dynamic key and transmitting the data in reverse order, and waiting for replying after the transmission is finished; the data receiving and answering process of the slave node equipment comprises the following steps: and detecting and storing the dynamic random key signal on the bus, receiving the encrypted data, decrypting the encrypted data by using the dynamic random key, performing reverse order processing, finally decrypting by using a fixed encryption mode to obtain original data, generating encrypted reply data and sending the encrypted reply data to the bus. The invention realizes the dynamic encryption of the two-bus or direct current carrier data, effectively prevents the interception of the communication data by external communication and the external violent attack, and ensures the safety of data transmission.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a dynamic data encryption communication method based on two-wire system communication.
Background
The two-wire system is a technology (communication and power supply) in which a power supply line and a signal line are integrated with each other, and a single bus is shared by signals and power supply, as compared with a four-wire system (two power supply lines and two communication lines). All communication nodes (slave devices) take power from the communication master node (master device) and perform data communication with the master node through the two wires. The two-wire communication mainly represents technologies such as two buses and a dc carrier.
The two-wire system saves the construction and cable cost and brings great convenience to site construction and later maintenance. The method is widely applied to the fields of fire fighting, instruments, sensors, industrial control and the like.
The two-wire system is convenient to install, safe, reliable, labor-saving, material-saving and time-saving, and can complete installation and control of each electric device under the condition of not changing the existing wiring. At present, a two-wire communication mode is widely used in the fields of remote centralized meter reading systems, intelligent buildings, emergency lighting indication evacuation systems, fire fighting equipment, fire monitoring and alarming systems, intelligent security and protection distribution and control and the like.
Due to the wide application of the two-wire system, the expandability is good, the two-wire system is easy to be interfered by external communication in the process of carrying out communication data transmission by using the two-wire system, and the success rate and the reliability of the two-wire system communication are greatly reduced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a dynamic data encryption method based on two-wire system communication and aims to overcome the defects that the data transmission process in the prior art is easy to be interfered by external interception and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the dynamic data encryption communication method based on the two-wire system communication comprises the following steps:
the main node equipment data encryption transmission comprises the following steps:
s1, the main node equipment is in a data state to be sent, if data exist, the data to be sent are encrypted by using a fixed encryption mode to generate fixed encrypted data;
s2, sending a low level of ms level, maintaining a high level of dynamic duration, and then sending a low level of ms level to complete sending of dynamic random keys;
s3, obtaining a dynamic random key by counting the dynamic time length in S2, carrying out secondary encryption on the fixed encrypted data by using the dynamic random key to generate secondary encrypted data, and then sending the secondary encrypted data in a reverse order;
s4, after the secondary encrypted data is sent, the main node equipment enters a reply waiting state, and the step S1 is executed if the reply is received or the waiting time is overtime;
receiving and responding data from the node equipment, comprising the following steps:
r1, the slave node device is in a state of waiting for receiving data, if a dynamic random key signal is detected on the bus, a counting mode is used for obtaining a dynamic random key and storing the dynamic random key;
r2, receiving encrypted data from the bus;
r3, reversing the sequence of the received encrypted data, and then carrying out primary decryption by using the stored dynamic random key to obtain primary decrypted data;
r4, secondarily decrypting the primary decrypted data by using a fixed encryption mode to obtain original data;
and R5, encrypting the reply data, sending the reply encrypted data, and performing the step R1 by the slave node equipment after the sending is finished.
According to the technical scheme, the master node device and the slave node device obtain the dynamic random key by using a counting mode and adopt consistent counting time reference.
In the above technical solution, the bus level when the master node device is in a state of waiting for data transmission is a high level, and the bus level when the master node device enters a state of waiting for a reply is an intermediate level.
According to the technical scheme, the time of the ms-level low level is 1 ms-20 ms.
In connection with the above technical solution, the encrypting the data to be transmitted by the master node device using the fixed encryption mode means that the data to be transmitted is encrypted first, and then the reverse order operation is performed.
In connection with the above technical solution, the secondary decryption of the primary decrypted data by the cluster node device using the fixed encryption mode means that the data is first subjected to reverse order operation and then decrypted.
In the above technical solution, the high-level dynamic duration for generating the dynamic random key is generated by a hard random number generator or a soft random number generator.
In connection with the above technical solution, the fixed encryption mode of the data to be transmitted by the master node device and the encryption mode of the reply data by the slave node device are different encryption methods.
The dynamic data encryption communication system based on two-wire system communication is characterized by comprising a main node and a slave node, wherein:
the master node includes:
the fixed encryption module is used for encrypting the number to be sent by adopting a fixed encryption party to generate fixed encryption data;
the dynamic random key generation module is used for generating a dynamic random time length and acquiring a dynamic random key by utilizing a counting mode;
the dynamic encryption module is used for carrying out secondary encryption on the fixed encryption data by using a dynamic random key to generate secondary encryption data and carrying out reverse order;
the data transceiver module is used for bus level control, sending the encrypted data to the bus and receiving the data on the bus;
and the reply data processing module is used for receiving the encrypted reply data of the slave node and decrypting the encrypted reply data.
The slave node includes:
the data transceiver module is used for bus level control, receiving the encrypted data on the bus and sending the encrypted data back to the bus;
the dynamic random key detection module obtains a dynamic random key by using a counting mode and stores the dynamic random key;
the dynamic decryption module is used for reversing the sequence of the received encrypted data and then carrying out primary decryption by using the stored dynamic random key to obtain primary decrypted data;
the fixed decryption module is used for carrying out secondary decryption on the primary decrypted data by using a fixed encryption mode to obtain original data;
and the reply module is used for encrypting the reply data, sending the reply encrypted data back, and transferring the reply encrypted data to the dynamic random key receiving module for execution after the sending is finished.
In the above-mentioned technical solution, a computer program executable by a processor is stored therein, and the computer program executes the data dynamic encryption communication method based on the two-wire system communication according to the above-mentioned technical solution.
The invention has the following beneficial effects: the invention provides a data dynamic encryption communication method based on two-wire system communication, which realizes data communication by sending a high level of dynamic duration as a dynamic random key and carrying out secondary encryption on the sent encrypted data. The method and the system realize the dynamic encryption of the two buses or the direct current carrier data, effectively prevent the interception of the communication data by external communication and the external violent attack, and ensure the safety of data transmission.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a data encryption transmission and reception flow chart of a communication method of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a data transmission bus level state of a communication method according to an embodiment of the present invention;
fig. 3 is a data encryption process example of a communication method of an embodiment of the present invention;
fig. 4 is a data decryption process example of the communication method of the embodiment of the present invention;
fig. 5 is a block diagram of a communication system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the present invention provides a data dynamic encryption communication method based on two-wire system communication, including:
the main node equipment data encryption transmission comprises the following steps:
s1, the main node equipment is in a data state to be sent, if data exist, the data to be sent are encrypted by using a fixed encryption mode to generate fixed encrypted data;
s2, sending a low level of ms level, maintaining a high level of dynamic duration, and then sending a low level of ms level to complete sending of dynamic random keys;
s3, obtaining a dynamic random key by counting the dynamic time length in S2, carrying out secondary encryption on the fixed encrypted data by using the dynamic random key to generate secondary encrypted data, and then sending the secondary encrypted data in a reverse order;
s4, after the secondary encrypted data is sent, the main node equipment enters a reply waiting state, and the step S1 is executed if the reply is received or the waiting time is overtime;
receiving and responding data from the node equipment, comprising the following steps:
r1, the slave node device is in a state of waiting for receiving data, if a dynamic random key signal is detected on the bus, a counting mode is used for obtaining a dynamic random key and storing the dynamic random key;
r2, receiving encrypted data from the bus;
r3, reversing the sequence of the received encrypted data, and then carrying out primary decryption by using the stored dynamic random key to obtain primary decrypted data;
r4, secondarily decrypting the primary decrypted data by using a fixed encryption mode to obtain original data;
and R5, encrypting the reply data, sending the reply encrypted data, and performing the step R1 by the slave node equipment after the sending is finished.
The invention utilizes the dynamic random key generated by each communication and utilizes the dynamic random key to carry out secondary encryption on the transmitted data, thereby realizing the dynamic encryption on the two buses or the direct current carrier data, effectively preventing the communication data from being intercepted by external communication and being attacked by external violence, and ensuring the safety of data transmission.
Further, the master node device and the slave node device use a counting mode to obtain the dynamic random key and use a consistent counting time reference.
Further, as shown in fig. 2, the bus level when the master node device is in the state of waiting for data transmission is high, and the bus level when the master node device enters the state of waiting for a reply is intermediate.
Further, the time of the ms-level low level is 1ms to 20 ms.
Further, the main node device encrypts the data to be transmitted by using a fixed encryption method, that is, encrypts the data to be transmitted first and then performs reverse operation.
As shown in fig. 3, the data sets and the data values of the data sets during the encryption process of the master node device are demonstrated in actual numerical values. The dynamic random key sent this time is 0x09, and the original data to be sent SData1 is 0x 010 x 120 x 34; generating SData2 after being encrypted by a fixed encryption mode, wherein the value of the SData2 is 0x 130 x 460 x 8A; performing a reverse operation on SData2 to generate SData3, which has a value of 0x8A 0x 460 x 13; carrying out secondary encryption on the SData3 by using a dynamic random key to generate SData4, wherein the value of the SData4 is 0x 130 xDF 0xAC, and the corresponding binary system is 000100111100111110101100; the binary data of SData4 is inverted to generate SData5, whose binary value is 001101011111001111001000 and corresponding hexadecimal 0x 350 xF 30 xC 8. For the same transmission data, the dynamic random key is changed when the data is transmitted again, and the encrypted data which needs to be transmitted finally also changes.
Further, the cluster node device performs secondary decryption on the primary decrypted data by using a fixed encryption mode, that is, performs reverse order operation on the data first, and then performs decryption.
As shown in fig. 4, the data sets and the data values of the data sets during the encryption process of the master node device are demonstrated by actual numerical values. The received dynamic random key is 0x09, the received encrypted data RData1 is 0x 350 xF 30 xC8, and the binary value is 001101011111001111001000; performing reverse operation on the binary system of the RData1 to generate RData2, wherein the binary value is 000100111100111110101100, and the corresponding hexadecimal is 0x 130 xDF 0 xAC; decrypting RData2 with a dynamic random key generates RData3, which has a value of 0x8A 0x 460 x 13; reverse order RData3 to generate RData4, whose value is 0x 130 x 460 x 8A; decryption of the fixed encryption of RData4 generates RData5, which has a value of 0x 010 x 120 x34, i.e., the original data to be received. After the data is received, data ADAta1 which needs to be replied from the node is prepared, and the value of the data ADAta1 is 0x 010 x 560 x 78; the encryption of ADtat1 generates AData2, which has a value of 0x 120 x 670 x 89.
Further, the high level dynamic duration for generating the dynamic random key is generated by a hard random number generator or a soft random number generator.
Further, the fixed encryption mode of the data to be transmitted by the master node device and the encryption mode of the reply data by the slave node device are different encryption methods.
As shown in fig. 5, a dynamic data encryption communication system based on two-wire system communication is provided, which is characterized by comprising a master node and a slave node, wherein:
the master node includes:
the fixed encryption module is used for encrypting the number to be sent by adopting a fixed encryption party to generate fixed encryption data;
the dynamic random key generation module is used for generating a dynamic random time length and acquiring a dynamic random key by utilizing a counting mode;
the dynamic encryption module is used for carrying out secondary encryption on the fixed encryption data by using a dynamic random key to generate secondary encryption data and carrying out reverse order;
the data transceiver module is used for bus level control, sending the encrypted data to the bus and receiving the data on the bus;
and the reply data processing module is used for receiving the encrypted reply data of the slave node and decrypting the encrypted reply data.
The slave node includes:
the data transceiver module is used for bus level control, receiving the encrypted data on the bus and sending the encrypted data back to the bus;
the dynamic random key detection module obtains a dynamic random key by using a counting mode and stores the dynamic random key;
the dynamic decryption module is used for reversing the sequence of the received encrypted data and then carrying out primary decryption by using the stored dynamic random key to obtain primary decrypted data;
the fixed decryption module is used for carrying out secondary decryption on the primary decrypted data by using a fixed encryption mode to obtain original data;
and the reply module is used for encrypting the reply data, sending the reply encrypted data back, and transferring the reply encrypted data to the dynamic random key receiving module for execution after the sending is finished.
Further, a computer program executable by a processor is stored therein, and the computer program executes the data dynamic encryption communication method based on the two-wire system communication as in the above-described embodiments.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. A data dynamic encryption communication method based on two-wire system communication is characterized by comprising the following steps:
the main node equipment data encryption transmission comprises the following steps:
s1, the main node equipment is in a data state to be sent, if data exist, the data to be sent are encrypted by using a fixed encryption mode to generate fixed encrypted data;
s2, sending a low level of ms level, maintaining a high level of dynamic duration, and then sending a low level of ms level to complete sending of dynamic random keys;
s3, obtaining a dynamic random key by counting the dynamic time length in S2, carrying out secondary encryption on the fixed encrypted data by using the dynamic random key to generate secondary encrypted data, and then sending the secondary encrypted data in a reverse order;
s4, after the secondary encrypted data is sent, the main node equipment enters a reply waiting state, and the step S1 is executed if the reply is received or the waiting time is overtime;
receiving and responding data from the node equipment, comprising the following steps:
r1, the slave node device is in a state of waiting for receiving data, if the data encrypted by the dynamic random key is detected on the bus, the dynamic random key is obtained by using a counting mode consistent with the master node and is stored;
r2, receiving encrypted data from the bus;
r3, reversing the sequence of the received encrypted data, and then carrying out primary decryption by using the stored dynamic random key to obtain primary decrypted data;
r4, carrying out secondary decryption on the primary decrypted data by using a fixed encryption mode to obtain original data;
and R5, encrypting the reply data, sending the reply encrypted data, and performing the step R1 by the slave node equipment after the sending is finished.
2. The dynamic data encryption communication method according to claim 1, wherein the master node device and the slave node device obtain the dynamic random key by using a counting method with a consistent counting time reference.
3. The dynamic data encryption communication method according to claim 1, wherein the bus level when the master node device is in the state of waiting for data transmission is at a high level, and the bus level when the master node device enters the state of waiting for a reply is at an intermediate level.
4. The dynamic encryption communication method for data according to claim 1, wherein the time of the ms-level low level is 1ms to 20 ms.
5. The dynamic data encryption communication method according to claim 1, wherein the main node device encrypts the data to be transmitted by using a fixed encryption method, that is, encrypts the data to be transmitted first and then performs reverse order operation.
6. The dynamic data encryption communication method according to claim 1, wherein the secondary decryption of the primary decrypted data by the slave node device using the fixed encryption mode is to perform the reverse order operation on the data first and then perform the decryption.
7. The method of claim 1, wherein the high level dynamic time duration for generating the dynamic random key is generated by a hard random number generator or a soft random number generator.
8. The dynamic data encryption communication method according to claim 1, wherein the fixed encryption mode of the data to be transmitted by the master node device is different from the encryption mode of the reply data by the slave node device.
9. A dynamic data encryption communication system based on two-wire system communication, comprising a master node and a slave node, wherein:
the master node includes:
the fixed encryption module is used for encrypting the number to be sent by adopting a fixed encryption party to generate fixed encryption data;
the dynamic random key generation module is used for generating a dynamic random time length and acquiring a dynamic random key by utilizing a counting mode;
the dynamic encryption module is used for carrying out secondary encryption on the fixed encryption data by using a dynamic random key to generate secondary encryption data and carrying out reverse order;
the data transceiver module is used for bus level control, sending the encrypted data to the bus and receiving the data on the bus;
the reply data processing module is used for receiving the encrypted reply data of the slave node and decrypting the encrypted reply data;
the slave node includes:
the data transceiver module is used for bus level control, receiving the encrypted data on the bus and sending the encrypted data back to the bus;
the dynamic random key detection module is used for acquiring a dynamic random key by utilizing a counting mode consistent with the main node and storing the dynamic random key if the bus is detected to have data encrypted by the dynamic random key;
the dynamic decryption module is used for reversing the sequence of the received encrypted data and then carrying out primary decryption by using the stored dynamic random key to obtain primary decrypted data;
the fixed decryption module is used for carrying out secondary decryption on the primary decrypted data by using a fixed encryption mode to obtain original data;
and the reply module is used for encrypting the reply data, sending the reply encrypted data back, and switching to the data transceiver module to execute after the sending is finished.
10. A computer-readable storage medium, in which a computer program executable by a processor is stored, the computer program executing the two-wire communication based data dynamic encryption communication method according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911280112.6A CN110944009B (en) | 2019-12-13 | 2019-12-13 | Data dynamic encryption communication method and system based on two-wire system communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911280112.6A CN110944009B (en) | 2019-12-13 | 2019-12-13 | Data dynamic encryption communication method and system based on two-wire system communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110944009A CN110944009A (en) | 2020-03-31 |
| CN110944009B true CN110944009B (en) | 2022-03-18 |
Family
ID=69910956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911280112.6A Active CN110944009B (en) | 2019-12-13 | 2019-12-13 | Data dynamic encryption communication method and system based on two-wire system communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110944009B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113746642B (en) * | 2021-11-08 | 2022-02-11 | 西安热工研究院有限公司 | Method and system for communication between computers |
| CN115529131B (en) * | 2022-11-28 | 2023-03-14 | 广州万协通信息技术有限公司 | Data encryption and decryption method and device based on dynamic key |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100826522B1 (en) * | 2006-11-15 | 2008-04-30 | 삼성전자주식회사 | Apparatus and method for dynamic ciphering in mobile communication system |
| CN102438240A (en) * | 2011-12-13 | 2012-05-02 | 西安交通大学 | Smart grid wireless communication encryption method based on dynamic key |
| US8312272B1 (en) * | 2009-06-26 | 2012-11-13 | Symantec Corporation | Secure authentication token management |
| CN104796399A (en) * | 2015-01-08 | 2015-07-22 | 北京思普崚技术有限公司 | Key negotiation method of data encryption transmission |
| CN105262772A (en) * | 2015-11-06 | 2016-01-20 | 腾讯科技（深圳）有限公司 | Data transmission method, data transmission system and related apparatus for data transmission method and system |
| CN106101159A (en) * | 2016-08-27 | 2016-11-09 | 谢志豪 | Dynamic cipher generating method, dynamic cipher authentication method and device |
| CN108243001A (en) * | 2016-12-23 | 2018-07-03 | 航天星图科技（北京）有限公司 | A kind of data encryption communication means |
| US10154016B1 (en) * | 2017-06-12 | 2018-12-11 | Ironclad Encryption Corporation | Devices for transmitting and communicating randomized data utilizing sub-channels |
| CN110213228A (en) * | 2019-04-25 | 2019-09-06 | 平安科技（深圳）有限公司 | A kind of method, apparatus, storage medium and the computer equipment of certification communication |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7860254B2 (en) * | 2003-03-13 | 2010-12-28 | Hamdy Soliman | Computer system security via dynamic encryption |
-
2019
- 2019-12-13 CN CN201911280112.6A patent/CN110944009B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100826522B1 (en) * | 2006-11-15 | 2008-04-30 | 삼성전자주식회사 | Apparatus and method for dynamic ciphering in mobile communication system |
| US8312272B1 (en) * | 2009-06-26 | 2012-11-13 | Symantec Corporation | Secure authentication token management |
| CN102438240A (en) * | 2011-12-13 | 2012-05-02 | 西安交通大学 | Smart grid wireless communication encryption method based on dynamic key |
| CN104796399A (en) * | 2015-01-08 | 2015-07-22 | 北京思普崚技术有限公司 | Key negotiation method of data encryption transmission |
| CN105262772A (en) * | 2015-11-06 | 2016-01-20 | 腾讯科技（深圳）有限公司 | Data transmission method, data transmission system and related apparatus for data transmission method and system |
| CN106101159A (en) * | 2016-08-27 | 2016-11-09 | 谢志豪 | Dynamic cipher generating method, dynamic cipher authentication method and device |
| CN108243001A (en) * | 2016-12-23 | 2018-07-03 | 航天星图科技（北京）有限公司 | A kind of data encryption communication means |
| US10154016B1 (en) * | 2017-06-12 | 2018-12-11 | Ironclad Encryption Corporation | Devices for transmitting and communicating randomized data utilizing sub-channels |
| CN110213228A (en) * | 2019-04-25 | 2019-09-06 | 平安科技（深圳）有限公司 | A kind of method, apparatus, storage medium and the computer equipment of certification communication |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110944009A (en) | 2020-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2685982C2 (en) | Method of generating a secret cryptographic key in a network | |
| CN110944009B (en) | Data dynamic encryption communication method and system based on two-wire system communication | |
| CN105184935B (en) | It is a kind of can wechat share the blue-tooth intelligence lock system of password | |
| AU2017100661A4 (en) | An information security method of distributed electric vehicle controllers | |
| CN106028317B (en) | Relay apparatus, wireless communication system and radio relay method | |
| CN103413094A (en) | Telemetering encryption system applicable to spacecraft CPU (central processing unit) | |
| CN105656865B (en) | A kind of encryption communication method for Workshop monitoring and management system | |
| CN116488919B (en) | Data processing method, communication node and storage medium | |
| CN112947321A (en) | Field device using high speed communication | |
| CN111404674B (en) | Method and equipment for generating and receiving session key | |
| CN111181956A (en) | Wireless multi-service data encryption system and method applied to relay protection device | |
| CN113746642B (en) | Method and system for communication between computers | |
| US10841085B2 (en) | Method for generating a secret or a key in a network | |
| RU2387017C2 (en) | System for interfacing devices for preventing false data entry into monitored objects | |
| CN109996230B (en) | Method for improving Bluetooth mesh network communication safety through MCU serial port communication confusion encryption | |
| CN205140034U (en) | Bluetooth intelligent lock system of password is shared to letter a little | |
| CN108141358B (en) | Method for generating a cryptographic key in a circuit arrangement | |
| CN111865585B (en) | Quantum mobile terminal communication system, key distribution method and communication method | |
| CN114866241B (en) | Communication encryption method and device of SE chip and storage medium | |
| CN116318727B (en) | ECU access method, device, equipment and storage medium | |
| US20220147319A1 (en) | Method and system for managing the operation of a group of several connected objects | |
| CN107645319B (en) | Intelligent socket assembly control method for power line safety communication | |
| CN105556933A (en) | Communication device and method for communication | |
| UA117649U (en) | CONTROLLING ELECTRICAL CIRCUITS OF CONSUMER SUPPLY BY A CODE SIGNAL | |
| CN114218589A (en) | RS485 bus random key encryption and decryption method and system |
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 |