Multi-path encryption wireless transmission method and system based on environmental parameters

Abstract

The invention discloses a multipath encryption wireless transmission method and system based on environmental parameters, and the method comprises the steps: obtaining a local real-time clock parameter, and carrying out the first encryption through employing the local real-time clock parameter as a first secret key; environment parameters are obtained, the real-time environment parameters are used as a second secret key, and second encryption is carried out in combination with the first secret key; after the second encryption, the encrypted data is obtained through third secret key operation under the participation of the second secret key, so that the third encryption is realized; and performing wireless transmission on the data encrypted for three times. The system is used for executing the method. The method has the advantages of being simple in principle, easy to implement, wide in application range, good in safety and the like.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of wireless transmission, and in particular to a multi-path encrypted wireless transmission method and system based on environmental parameters. Background Art

[0002] Wireless communication technology is currently a widely used technology in the industry. It is popular in the field of communications because of its convenient deployment, strong mobility, ability to cross some obstacles, ability to cross special terrain, flexible laying and relatively low cost. However, with the development of the information society, the confidentiality of information is becoming more and more important, and thus the security issues of communications have been exposed. For criminals, it is relatively difficult to steal information from wired transmission links. After all, wired lines are mostly laid underground or in the air, and the line sequence definition of wired signals is also relatively complex; but in wireless transmission, as long as you have a wireless receiving device, it is relatively easy to obtain data in the wireless link after proper matching.

[0003] In order to solve the security problem of wireless communication data, the industry currently uses various algorithms to encrypt data transmission to reduce the risk of information leakage, but the general encryption method is that the algorithm is relatively fixed, and the encryption parameters remain unchanged after the system is determined. Once the criminals steal the data, they are likely to be cracked after a long period of analysis.

[0004] The existing traditional wireless communication data security issues mainly include the following aspects:

[0005] 1. The uniqueness of the encryption algorithm: For data encryption, many data-sensitive systems will consider it in their applications. However, a fixed algorithm is often used in the system for encryption, which provides opportunities for criminals. Once the criminals crack the data encryption algorithm through long-term analysis, they can easily intercept sensitive data.

[0006] 2. Immutability of encryption factors: At present, encryption algorithms used in the industry generally encrypt sensitive information according to a predetermined coefficient (encryption factor), but this method still leaves the possibility of cracking for criminals. As long as there is enough time, after the algorithm is cracked, the coefficient can be parsed out together, which makes the subsequent data transmission no longer safe.

[0007] 3. Exposure of data transmission: In order to ensure the security of the transmission of sensitive information, current wireless transmission systems often directly use encryption, but such operations will allow criminals to directly enter the cracking process.

[0008] 4. System exposure: Current wireless transmission systems, especially those for sensitive information, often have some warning features on their appearance or system functional characteristics. Summary of the invention

[0009] The technical problem to be solved by the present invention is: in view of the technical problems existing in the prior art, the present invention provides a multi-path encrypted wireless transmission method and system based on environmental parameters which has a simple principle, is easy to implement, has a wide range of applications and has good security.

[0010] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0011] A multipath encrypted wireless transmission method based on environmental parameters, comprising:

[0012] Obtaining local real-time clock parameters, and using the local real-time clock parameters as a first key for first encryption;

[0013] Acquire environmental parameters, and use the real-time environmental parameters as a second key in combination with the first key for a second encryption;

[0014] After the second encryption, the encrypted data is obtained through the third key operation with the participation of the second secret key, thus achieving the third encryption;

[0015] The thrice-encrypted data is transmitted wirelessly.

[0016] As a further improvement of the method of the present invention: after reading the local real-time clock parameters, the cryptographic factor library is used to query the cryptographic factor according to the time, and the cryptographic factor is introduced into the first encryption algorithm to obtain the first key.

[0017] As a further improvement of the method of the present invention: when obtaining environmental parameters, the environmental sensor numbers of this station and the other station that need to be used are selected according to the time, the parameter values ​​of the sensors of this station that need to be used for calculation are taken out, and the first key and the selected parameter values ​​of the sensors of this station are used as password factors to import into the second encryption algorithm to obtain the second key, and the data to be sent is imported into the third encryption algorithm using the second key as the password factor for encryption, and finally the encrypted data is sent via the wireless channel.

[0018] As a further improvement of the method of the present invention: when obtaining environmental parameters, the environmental sensor numbers of this station and the other station that need to be used are selected according to the time, the parameter values ​​of the other station sensors that need to be used for calculation are taken out, and the first key and the selected parameter values ​​of the other station sensors are used as password factors to import the second encryption algorithm to obtain the third key, and the received encrypted data is decrypted according to the third key and the third encryption algorithm and then output to obtain wireless received data.

[0019] As a further improvement of the method of the present invention: the environmental parameters include one or more of temperature parameters and humidity parameters.

[0020] The present invention further provides a multipath encrypted wireless transmission system based on environmental parameters, which comprises:

[0021] Local real-time clock unit, used to implement the time base for the system's rolling encryption;

[0022] Environmental sensors are used to collect various parameters of the environment in real time and provide random and variable encryption factors for the second encryption algorithm;

[0023] Wireless transceiver module, serving as a plaintext or encrypted data transmission channel;

[0024] The processor is responsible for reading environmental sensor parameters, reading the local real-time clock, calculating algorithms, and controlling the wireless transceiver module for data transmission.

[0025] As a further improvement of the system of the present invention: in the local real-time clock unit, a time threshold is set, and the two systems require that the time error does not exceed the set threshold minutes, which will change the encryption factor of the first encryption algorithm once, thereby realizing the change of the first encryption algorithm factor over time.

[0026] As a further improvement of the system of the present invention: the environmental sensor includes one or more of a temperature sensor and a humidity sensor, which can be used to collect environmental parameters in real time.

[0027] Compared with the prior art, the advantages of the present invention are:

[0028] 1. The multi-path encrypted wireless transmission method and system based on environmental parameters of the present invention have simple principles, are easy to implement, have a wide range of applications, and have good security. The present invention can ensure the security of wireless data transmission and provide stronger protection for data security in the field of wireless communications.

[0029] 2. The multi-path encrypted wireless transmission method and system based on environmental parameters of the present invention adopts a variety of encryption algorithms, which makes the difficulty of cracking increase sharply, and further ensures the security of sensitive information transmission in the wireless communication system.

[0030] 3. In the multi-path encrypted wireless transmission method and system based on environmental parameters of the present invention, although the algorithm remains unchanged, the encryption factor is constantly changing with the change of time and environmental parameters, and the selection of encryption factor is variable. Any parameters of the environmental sensor can be randomly specified for encryption calculation. Therefore, even if criminals spend a lot of time to crack one set of encryption factors, it is meaningless.

[0031] 4. The multi-path encrypted wireless transmission method and system based on environmental parameters of the present invention adopts plain text transmission for environmental parameters and encrypted transmission for sensitive information, which can confuse criminals to a certain extent, delay their cracking time, and indirectly increase the difficulty of cracking.

[0032] 5. The multipath encrypted wireless transmission method and system based on environmental parameters of the present invention, wherein the hardware system is a remote environmental parameter measurement device, has good camouflage, and will not cause alarm when criminals see it. The environmental parameters obtained by the environmental sensor are used as encryption factors, so the user only needs to replace or add different types of environmental sensors to easily modify the encryption factors, thereby changing the encrypted data content. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic flow diagram of the method of the present invention.

[0034] Figure 2 It is a detailed schematic diagram of the process of the present invention in a specific embodiment.

[0035] Figure 3 It is a schematic diagram of the topological structure of the system of the present invention in a specific embodiment. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] like Figure 1 and Figure 2 As shown, the multipath encrypted wireless transmission method based on environmental parameters of the present invention includes:

[0041] Obtaining local real-time clock parameters, and using the local real-time clock parameters as a first key for first encryption;

[0042] Acquire environmental parameters, and use the real-time environmental parameters as a second key in combination with the first key for a second encryption;

[0043] After the second encryption, the encrypted data is obtained through the third key operation with the participation of the second secret key, thus achieving the third encryption;

[0044] The thrice-encrypted data is transmitted wirelessly.

[0045] In a specific application example, after reading the local real-time clock parameters, the cryptographic factor library is used to query the cryptographic factor according to the time, and the cryptographic factor is introduced into the first encryption algorithm to obtain the first key.

[0046] In a specific application example, when obtaining environmental parameters, the environmental sensor numbers of this station and the other station to be used are selected according to the time, the parameter values ​​of the sensors of this station required for calculation are taken out, and the first key and the selected parameter values ​​of the sensors of this station are used as password factors to import the second encryption algorithm to obtain the second key. The data to be sent is imported into the third encryption algorithm using the second key as the password factor for encryption, and finally the encrypted data is sent via the wireless channel.

[0047] In a specific application example, when obtaining environmental parameters, the environmental sensor numbers of this station and the other station that need to be used are selected according to the time, the parameter values ​​of the other station sensors that need to be used for calculation are taken out, and the first key and the selected parameter values ​​of the other station sensors are used as password factors to import the second encryption algorithm to obtain the third key. The received encrypted data is decrypted according to the third key and the third encryption algorithm and then output to obtain wireless received data.

[0048] In a specific application example, the environmental parameters include one or more of temperature parameters and humidity parameters.

[0049] As can be seen from the above, the security level of the multi-path encryption method of the present invention is very high, and the encryption factors of multiple links change with time or environment, so it is almost impossible to crack. Even if the relevant data of a specific environmental parameter at a certain moment is cracked, it cannot be applied to the encrypted data at other moments.

[0050] like Figure 3 As shown, the present invention further discloses a multipath encrypted wireless transmission system based on environmental parameters, comprising:

[0051] Local real-time clock unit, used to implement the time base for the system's rolling encryption;

[0052] Environmental sensors are used to collect various parameters of the environment in real time and provide random and variable encryption factors for the second encryption algorithm;

[0053] Wireless transceiver module, serving as a plaintext or encrypted data transmission channel;

[0054] The processor is responsible for reading environmental sensor parameters, reading the local real-time clock, calculating algorithms, and controlling the wireless transceiver module for data transmission.

[0055] In a specific application example, in the local real-time clock unit, the present invention can set a time threshold. For example, the systems of both parties require that the time error does not exceed 1 minute, and the encryption factor of the first encryption algorithm is changed once every minute. This technical means enables the change of the first encryption algorithm factor over time.

[0056] In a specific application example, the environmental sensor includes a temperature sensor, a humidity sensor, etc., which are used to collect various parameters of the environment in real time.

[0057] When the multipath encrypted wireless transmission system of the present invention is in operation, the processing flow includes:

[0058] The processor reads the local real-time time and queries the encryption factor in combination with the time. The encryption factor is processed by the first encryption algorithm to obtain the first secret key, thereby realizing the first encryption. The first secret key changes with time.

[0059] After the processor collects the environmental sensor parameters, it imports the second algorithm together with the first key to obtain the second key, thereby realizing the second encryption. The second key changes with changes in the environment, changes in the number of environmental parameter selections, and changes in the first key.

[0060] With the support of the second secret key, ordinary data is converted into encrypted data through the third algorithm, thus achieving the third encryption.

[0061] The encrypted data goes through three rounds of encryption and is sent out by the wireless transceiver module.

[0062] As can be seen from the above, the encrypted data of the present invention not only undergoes three rounds of encryption processing, but also changes with the change of time, the change of environmental parameters, etc., and has very good confidentiality. It is a highly secure method for multi-path encryption of data.

[0063] In a specific application example of the present invention, the specific operations are:

[0064] The encryption algorithm can be a user-defined algorithm or some standard algorithm. Here, it is assumed that the first encryption algorithm, the second encryption algorithm, and the third encryption algorithm are all self-defined, where the first encryption algorithm is: output = 2*input, the second encryption algorithm is: output = input 1*input 2, and the third encryption algorithm is: output = input 1 + input 2; at the same time, it is assumed that the query example table of time and encryption factor is as follows:

[0065] Serial number Time Encryption Factor Serial number Time Encryption Factor 1 8:00-8:01(Closed) 01 4 8:03-8:04(Closed) 04 2 8:01-8:02(Closed) 02 5 8:04-8:05(Closed) 05 3 8:02-8:03(Closed) 03 6 ...... ......

[0066] Now we need to transmit a secret number "5" from station A to station B at 8:02. The specific operation process is as follows:

[0067] Station A reads the real-time clock as 8:02, and then finds the corresponding encryption factor from the known table in the memory as the encryption factor 02 corresponding to the serial number 2 in the above table. Therefore, through the first encryption algorithm, it can be known that the first secret key = 2*encryption factor = 2*02 = 4; assuming that the real-time parameter (encryption factor) of the environmental sensor read by station A at this time is 03, then the second encryption algorithm is applied to know that secret key 2 = secret key 1*03 = 4*03 = 12; at this time, for the ordinary data "5" that needs to be encrypted and transmitted, the encrypted data obtained after the third encryption algorithm = ordinary data + secret key 2 = 5 + 12 = 17. That is, the sent data 5 is converted into 17 for sending, and the real-time parameter (encryption factor) 03 of the environmental sensor of station A will also be sent to station B in plain text.

[0068] The encryption algorithm of Station B is known to Station A. Therefore, for Station B's decryption, the key to its decryption is to obtain the second secret key. Station B decrypts after receiving 03 and 17 sent by Station A. Similarly, Station B first reads the local time as 8:02. By consulting the same encryption factor query example table, it can be obtained that the encryption factor at this time is 02. Applying the first encryption algorithm, it can be known that the output first secret key = 2*encryption factor = 2*02 = 4; since Station B received the parameter (encryption factor) of Station A's environmental sensor as 03, after substituting it into the second encryption algorithm, the second secret key = first secret key * environmental sensor parameter = 4*03 = 12; decryption through the third encryption algorithm shows that ordinary data = encrypted data - second secret key = 17-12 = 5. In this way, the encrypted data 17 can be decrypted, and the real data is "5".

[0069] It is not difficult to see from this example that when the communication period changes, the encryption factor queried according to the time will change. When the environmental parameters change, the parameters that use the environmental parameters as encryption factors will also change accordingly. These changes will trigger changes in the first secret key and the second secret key, thereby affecting the final encrypted and decrypted data. This makes even fixed ordinary data no longer fixed after encryption, but changes with time and environmental parameters. This greatly increases the difficulty of cracking.

[0070] In the above application process of the present invention, conventional algorithms or unconventional algorithms may be used for the first algorithm, the second algorithm and the third algorithm, and the only requirement is that external parameters can be input into the algorithm. The external parameters here are the encryption factors and secret keys introduced in the invention. Now, taking unconventional algorithms as an example, how to use encryption factors and secret keys is introduced. Assume that the formula of the first encryption algorithm is: output = input + 2; the formula of the second encryption algorithm is: output = input 1 * input 2; the formula of the third algorithm is: input 1 + input 2; then: first secret key = encryption factor generated according to real-time time + 2; if the current time is 8:05, then by querying Table 1, it can be known that the encryption factor is 05, thus obtaining secret key 1 = 05 + 2 = 7; according to the assumed second algorithm, it can be known that the second secret key = first secret key * environmental sensor real-time parameter encryption factor; assuming that the temperature measured by the environmental sensor is 25, and this parameter is used as the encryption factor, then the second secret key = first key * 25 = 7 * 25 = 175; according to the third algorithm, it can be known that encrypted data = ordinary data + second secret key; assuming that the ordinary data to be sent is 10, then after encryption, the data becomes 10 + 175 = 185. From the above derivation, it can be seen that any change in the first algorithm, the second algorithm and the third algorithm, the encryption factor generated by real-time time and the encryption factor obtained by the real-time parameters of the environmental sensor will cause the first secret key and the second secret key to change, and then the encrypted data will change accordingly. Therefore, the encryption method cleverly utilizes the latter and the former in a cyclic combination to improve the reliability of encryption, and the encryption result changes with time and environment, making it very difficult to crack.

[0071] In summary, the method and system for applying multipath encryption to wireless transmission of the present invention have the following characteristics:

[0072] (1) The system is disguised: On the surface, the function of the system is a remote wireless environmental parameter monitoring system, but in fact it can realize encrypted data transmission; on the surface, the environmental sensor only provides environmental parameters for system measurement needs, but in fact it provides encryption factors for wireless data encryption transmission.

[0073] (2) Diversity of encryption algorithms: The encryption method proposed in the present invention undergoes three-layer algorithm operations, which greatly enhances the encryption security.

[0074] (3) Flexibility and variability of encryption factors: The encryption algorithms proposed in the present invention all involve encryption factors in their operations. The encryption factors will change over time and with environmental parameters, the number and type of environmental sensors. This ensures that even if the same data is encrypted with the same algorithm, the encryption results will be different each time, making cracking meaningless.

[0075] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. A multipath encrypted wireless transmission method based on environmental parameters, characterized in that: include: Obtaining local real-time clock parameters, and using the local real-time clock parameters as a first key for first encryption; Acquire environmental parameters, and use the real-time environmental parameters as a second key in combination with the first key for a second encryption; After the second encryption, the encrypted data is obtained through the third key operation with the participation of the second secret key, thus achieving the third encryption; The thrice-encrypted data is transmitted wirelessly.

2. The multipath encrypted wireless transmission method based on environmental parameters according to claim 1, characterized in that: After reading the local real-time clock parameters, the cryptographic factor library is used to query the cryptographic factor according to the time, and the cryptographic factor is introduced into the first encryption algorithm to obtain the first key.

3. The multipath encrypted wireless transmission method based on environmental parameters according to claim 2, characterized in that: When obtaining environmental parameters, the environmental sensor numbers of this station and the other station that need to be used are selected according to the time, the parameter values ​​of the sensors of this station that need to be used for calculation are taken out, and the first key and the selected parameter values ​​of the sensors of this station are used as password factors to import the second encryption algorithm to obtain the second key. The data to be sent is imported into the third encryption algorithm using the second key as the password factor for encryption, and finally the encrypted data is sent via the wireless channel.

4. The multipath encrypted wireless transmission method based on environmental parameters according to claim 2, characterized in that: When obtaining environmental parameters, the environmental sensor numbers of this station and the other station that need to be used are selected according to the time, the parameter values ​​of the other station sensors that need to be used for calculation are taken out, and the first key and the selected parameter values ​​of the other station sensors are used as password factors to import the second encryption algorithm to obtain the third key. The received encrypted data is decrypted according to the third key and the third encryption algorithm and then output to obtain wireless received data.

5. The multipath encrypted wireless transmission method based on environmental parameters according to any one of claims 1 to 4, characterized in that: The environmental parameters include one or more of temperature parameters and humidity parameters.

6. A multipath encrypted wireless transmission system based on environmental parameters, characterized in that: include: Local real-time clock unit, used to implement the time base for the system's rolling encryption; Environmental sensors are used to collect various parameters of the environment in real time and provide random and variable encryption factors for the second encryption algorithm; Wireless transceiver module, serving as a plaintext or encrypted data transmission channel; The processor is responsible for reading environmental sensor parameters, reading the local real-time clock, calculating algorithms, and controlling the wireless transceiver module for data transmission.

7. The multipath encrypted wireless transmission system based on environmental parameters according to claim 6, characterized in that: In the local real-time clock unit, a time threshold is set. The systems of both parties require that the time error does not exceed the set threshold minutes. The encryption factor of the first encryption algorithm will be changed once, thereby realizing the change of the first encryption algorithm factor over time.

8. The multipath encrypted wireless transmission system based on environmental parameters according to claim 6, characterized in that: The environmental sensor includes one or more of a temperature sensor and a humidity sensor, and is used to collect environmental parameters in real time.

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