WO2016058259A1

WO2016058259A1 - Encryption transmission and verification method for power communication network field operation and maintenance data

Info

Publication number: WO2016058259A1
Application number: PCT/CN2014/093881
Authority: WO
Inventors: 高雪生; 邵波; 张际; 汤震; 张懿; 周筠
Original assignee: 国家电网公司; 江苏省电力公司; 江苏省电力公司镇江供电公司; 南京南瑞集团公司; 南京南瑞信息通信科技有限公司
Priority date: 2014-10-13
Filing date: 2014-12-15
Publication date: 2016-04-21
Also published as: CN104301317B; CN104301317A

Abstract

Disclosed is an encryption transmission and verification method for power communication network field operation and maintenance data. By using a data transmission technology, a data encryption transmission and field data remote verification feedback technology is introduced into field operation and maintenance of a power communication network, and secure transmission and remote verification on field operation and maintenance data are conducted by an intelligent means. The data encryption transmission and verification method of the present invention comprises a process of binding, collection, encryption, transmission, decryption, verification, encryption, backhaul and decryption; it is ensured that a communication network of a power enterprise operates safely and stably, field operation and maintenance are standardized, a remote technical support function is achieved, and field data support is provided for a work decision.

Description

Power communication network field operation and maintenance data encryption transmission verification method

Technical field

The invention belongs to the technical field of power communication, and in particular relates to a method for encrypting transmission and verification of on-site operation and maintenance data of a power communication network.

Background technique

China's electric power enterprise power communication network construction is about to usher in a new construction cycle. The existing operation and maintenance equipment and operation mode of the power communication network will have problems such as low data transmission security, numerous data on on-site operation and maintenance indicators, and unclear hierarchical structure. Faced with increasing work pressure.

The existing power communication network field operation and maintenance data collection, transmission and field data verification, generally adopt the wireless network VPN provided by the operator to directly transmit data after the method. The data transmission method has the following technical problems: (1) The existing data transmission uses the network provided by the communication network operator, and the terminal equipment used in the operation and maintenance of the power industry lacks effective security guarantee, and the access security of the terminal equipment cannot be guaranteed. And the use of security, easy to cause data leakage, causing hidden dangers to the safety production of power companies; (2) the existing operation and maintenance system lacks real-time on-site operation and maintenance data verification function, can not achieve closed-loop management of on-site operation and maintenance data, so that it can not Determine whether the on-site personnel have completed the on-site operation and maintenance work accurately and effectively according to the specifications. The above problems cause the on-site operation and maintenance personnel to perform standardized operations during operation and maintenance, which reduces the efficiency of operation and maintenance, causes hidden dangers to the stable operation of the power communication network, and restricts the safe operation of the power communication network.

Patent CN102655643A discloses a method of wireless data encryption and decryption. The encryption and decryption method is used in the general data wireless transmission field, and the encrypted data is encrypted by the encryption algorithm 3DES, and the encrypted data and the mobile device identification code are again encrypted and decrypted by the MD5 algorithm for use in Verify the accuracy of data transfer. This method of data encryption and decryption has the following Problems: (1) A variety of algorithms in the technology are used in turn, making the data encryption process inefficient and generating more redundant data. If the handheld terminal uses the algorithm, the power consumption is large; (2) verification in the technology The method only verifies the accuracy of the transmitted data, and lacks the verification of the legality of the data through IMSI and IMEI. In the current technical environment, IMSI and IMEI can be freely changed and cloned. If there is no valid cross-validation process for data legality, Will lead to certain security risks. Therefore, this method only solves the general situation of data wireless transmission encryption, and cannot meet the practical use requirements such as security, aging, storage, and battery life of the data in the wireless communication mobile operation and maintenance process.

Summary of the invention

The object of the present invention is to overcome the deficiencies of the prior art and provide a method for verifying the on-site operation and maintenance data encryption transmission of a power communication network, and using the data transmission technology to introduce the data encryption transmission and the field data remote verification feedback technology to the site of the power communication network. In operation and maintenance, intelligent means are used to realize secure transmission and remote verification of on-site operation and maintenance data, ensure safe and stable operation of power enterprise communication network, standardize operation of on-site operation and maintenance, realize remote technical support function, and provide on-site data support for work decision.

The object of the invention is achieved by the following technical solutions:

A method for verifying encrypted transmission and transmission of on-site operation and maintenance data of a power communication network, which comprises the following specific steps:

Step 1: Binding of the intelligent terminal: realizing the binding management of the remote system to the intelligent terminal in the wireless transmission public network by using the mobile device international identity code and the international mobile subscriber identity code;

Step 2: Data collection in the operation and maintenance field: The intelligent terminal is configured with an infrared scanning function to collect the operation and maintenance field data;

Step 3: Data encryption processing: Combine 30 bits of the 128-bit key of the international data encryption algorithm as the verification information of the mobile device international identity code and the international mobile subscriber identity, and randomly select the secret in the process of encrypting the collected data. 32 consecutive data in the key, 16 bits are 1 group, 2 groups, 2 groups According to the mobile device international identity code and the international mobile subscriber identity code respectively, since the mobile device international identity code and the international mobile subscriber identity code are both 15 bits, 1 bit of each group of 16-bit data is randomly generated, thereby transmitting data. Perform encryption processing;

Step 4: Data transmission: using a wireless public network to implement data transmission between the bound intelligent terminal and the remote system;

Step 5: Data decryption: decrypting the received data by the remote system by using the secret key used by the data encryption processing method; the decrypted subkey block is composed of the addition inverse or multiplication inverse of the encrypted subkey; after decrypting the data, by moving The device international identity code and the international mobile subscriber identity code verify the legality of the decrypted data, and the data can be legally verified for the next data result, and the data that has not passed the verification will be directly discarded and alarmed;

Step 6. Data result verification: The data result verification is a process of verifying whether the transmission data meets the requirements of the operation and maintenance site by using the remote system, and the verification result is fed back regardless of whether the verification result is correct, and the data comparison service is responsible for collecting and transmitting the terminal. Verify the data to the remote system to determine if the site has completed the operation and maintenance as required;

Step 7, verifying the result data encryption: encrypting the result data after the remote verification by referring to the data encryption method in step 3;

Step 8, data backhaul: use the wireless public network to realize point-to-point transmission of the remote system and the intelligent terminal, and realize correct return of the verification result data;

Step 9: Decryption of the verification result: After verifying the legality of the decrypted data by using the mobile device international identity code and the international mobile subscriber identity, the intelligent terminal performs decryption of the verification result data to determine the on-site operation and maintenance. Whether the results meet the requirements.

The object of the present invention can also be further achieved by the following technical measures:

The foregoing method for verifying the on-site operation and maintenance data encryption transmission of the power communication network, wherein the step 3 data encryption processing can also replace the separated two sets of consecutive 16-bit data with the mobile device international identity code and the international mobile subscriber identity code, in each group of 16-bit data. The 1 bit is randomly generated.

In the foregoing method for verifying the transmission and maintenance data encryption operation of the power communication network, the data transmission process in the foregoing step 4 is to transmit a 128-bit international data encryption algorithm key after the data transmission connection is established, and the secret key includes the international identity of the intelligent terminal. The code (IMEI) and the International Mobile Subscriber Identity (IMSI), after verifying the legitimacy of the decrypted data through the IMSI and IMEI of the intelligent terminal, then transmitting the encrypted operation and maintenance field data.

In the foregoing method for verifying the transmission and maintenance data encryption operation of the power communication network, the decryption data process in the foregoing step 5 is to verify whether the accepted 128-bit key is correct, and then decrypt the 128-bit key to obtain the international identity code (IMEI) of the intelligent terminal and the international Mobile Subscriber Identity (IMSI), which verifies the validity of the decrypted data and verifies the decrypted data by verifying the correctness and mutual association of the Mobile Equipment International Identity (IMEI) and International Mobile Subscriber Identity (IMSI) data. After being legal, the encrypted operation and maintenance field data is accepted, and the encrypted operation and maintenance field data is decrypted.

The foregoing method for verifying the on-site operation and maintenance data encryption transmission of the power communication network, wherein the intelligent terminal of the operation and maintenance field data acquisition in step 2 is further configured with an RFID identification function.

The foregoing method for verifying the on-site operation and maintenance data encryption transmission of the power communication network, wherein the intelligent terminal in step 2 for performing operation and maintenance field data collection further configures the GIS function.

The foregoing method for verifying the on-site operation and maintenance data encryption transmission of the power communication network, wherein the intelligent terminal of the operation and maintenance field data acquisition in step 2 is further configured with the air pressure measurement function.

Compared with the prior art, the invention has the following significant advantages:

First, the mobile device international identity code (IMEI) and international mobile subscriber identity (IMSI) data are integrated into the encryption algorithm, and the verification function for the smart terminal is added in the process of encryption and decryption verification, thereby improving the security and specification of the data transmission. Sexual and manageable identification features.

Secondly, the algorithm of the present invention only needs to add the mobile device international identity code (IMEI) and the international mobile subscriber identity (IMSI) data to the secret key of the international data encryption algorithm, so that the system can ensure the time-based data transmission of the power communication mobile operation and maintenance field. At the same time, it effectively guarantees the security of data transmission. Compared with the prior art requirements, it reduces data redundancy, is convenient to operate, and can be widely applied to wireless transmission of live data of power communication mobile operation and maintenance.

Thirdly, through the embodiments of the present invention, the power communication mobile operation and maintenance personnel can realize the timely transmission of the operation and maintenance data of the mobile communication operation and maintenance in a safe environment, and the remote management personnel can timely operate and operate the power communication. The on-site operation and maintenance data is reviewed and timely reported to the power communication mobile operation and maintenance site operation and maintenance personnel to ensure the closed-loop management of the power communication mobile operation and maintenance field data, thus realizing the standardization and closed-loop of the whole process of power communication mobile operation and maintenance. Operation management, effectively supporting the development of mobile communication operations

DRAWINGS

FIG. 1 is a schematic structural diagram of an on-site operation and maintenance data encryption transmission system of a power communication network.

2 is a schematic diagram of a verification process of data encryption and decryption transmission in an operation and maintenance field.

FIG. 3 is a schematic diagram of an encryption and decryption process of an operation and maintenance field data.

detailed description

The invention will be further described below in conjunction with the drawings and specific embodiments.

As shown in FIG. 1 , the on-site operation and maintenance data encryption transmission verification system of the power communication network of the present invention is composed of an intelligent terminal and a remote system, and the two communicate through a wireless public network. Field operation and maintenance data of power communication network of the invention The encrypted transmission verification method is as follows:

1. Mobile operation and maintenance field data verification platform

As shown in FIG. 2, the verification process of the data encryption and decryption transmission of the operation and maintenance field of the system is described. The system is based on a unified software framework platform across operating systems, and adopts a unified resource data model. Through intelligent terminal binding, data encryption processing transmission, data decryption verification and backhaul, it can ensure operation and maintenance under safe and standardized conditions. It mainly includes three major application management modules:

(1) Terminal binding management

The binding management is mainly to realize the binding of the terminal equipment to the operation and maintenance personnel, and realize the authentication of the terminal equipment connected to the wireless public network through the mobile device international identity code (IMEI) and the international mobile subscriber identity (IMSI). The wireless public network accesses the system and performs data exchange security and manageability.

(2) Data encryption verification management

Encryption management uses data encryption technology to encrypt the field data collected by the binding terminal. The specific processes include: field data encryption, remote data decryption, remote verification data encryption, and terminal receiving data decryption. Thereby, the verification management of the complete closed-loop field operation and maintenance acquisition data in a safe and controllable environment is realized.

(3) Data transmission management

The data transmission mainly uses the wireless public network to realize the real-time transmission of the point-to-point data of the terminal equipment and the remote verification system, realizing the safe and efficient on-site and remote data real-time docking in the public network environment, and supporting the data encryption verification link.

2. Operation and maintenance field data encryption transmission verification method

The method of data transmission and encryption verification of the operation and maintenance field uses the process of “binding-acquisition-encryption-transmission-decryption-verification-encryption-return-decryption” to finally realize the guidance and result display of the on-site operation and maintenance.

Intelligent terminal binding: the mobile device international identity code (IMEI) and the international mobile subscriber identity (IMSI) are used to implement binding management of the terminal device in the wireless transmission public network;

Operation and maintenance field data collection: use handheld terminals to provide diversified data collection methods to achieve data collection for operation and maintenance sites;

Data encryption processing: encrypts the operation and maintenance field data collected by the intelligent terminal based on the International Data Encryption Algorithm (IDEA) algorithm;

Data transmission: realizing data transmission between the binding terminal and the remote system by using the wireless public network;

Data decryption: Decryption of data is achieved by using the secret key of the data encryption method. The decrypted subkey block is composed of the addition inverse or multiplication inverse of the encryption subkey. First, 52 subkeys are extended from the 128-bit key input by the user, stored in the ULONG16Key[52] array, and then the 52 subkeys are transposed. After the subkey array is transposed, it needs to be Some subkeys are subjected to modulo 1 multiplication inverse or modulo additive inverse replacement. The required subkeys need to be 18+18=36 in total, and the other 52–36=16 subkeys do not change.

Data result verification: Data verification is a process of verifying whether the transmitted data meets the requirements of the site by using a remote system, and the verification result will be fed back whether the verification result is correct or not;

Verification result data encryption: In this step, the encrypted data is the verification data after remote verification, and the encryption method used is consistent with the foregoing data encryption processing method;

Data return: The verified data needs to use the wireless public network to realize the point-to-point transmission of the remote system and the terminal, and realize the correct return of the verification data;

Decryption of the verification result: The final decryption process is performed on the intelligent terminal, mainly to decrypt the verification data, thereby determining whether the on-site operation and maintenance result conforms to the specification requirements, and the decryption method adopted is consistent with the foregoing method of data decryption.

3. Implementation of method for mobile data transmission and encryption field data encryption transmission verification based on terminal binding

Power communication mobile operation and maintenance is an important component of power communication operation and maintenance. The invention is based on the software framework platform of the power network communication operation and maintenance management system, uses the unified resource data model of the power network, and integrates four functions of terminal device binding, data acquisition, data encryption and decryption, and data bidirectional transmission. The specific functions are implemented as follows:

(1) Smart terminal binding

Power communication mobile operation and maintenance is a general term for the operation and maintenance of a type of communication network. Therefore, the terminal equipment selected in this operation and maintenance method is the same as the existing terminal equipment. Since the terminal equipment needs to have reliable wireless data transmission capability, the terminal equipment at the current stage mostly adopts a terminal based on a mobile phone and is equipped with software and hardware functions such as infrared scanning, RFID, GIS, and air pressure measurement. The infrared scan is mainly used to scan the barcode on the device, thereby helping the user to read the device information and confirm whether the device is looking for the correct one. RFID is similar to infrared scanning and is also used to read device information, but the reading method is different. The GIS is used to locate device information to help the user determine if the device is in need of service. The air pressure measurement is used to determine the ambient air pressure of the equipment, to help remote users understand the operating environment of the equipment, and to support the data support for the post-equipment inspection and maintenance planning. Intelligent terminals can easily realize diversified collection of various types of data on site by using these methods, and can be directly stored on the handheld terminal. Since each terminal has a Mobile Equipment International Identity (IMEI) and an International Mobile Subscriber Identity (IMSI), and both are unique, the two sets of identification codes are used for terminal equipment and remote backend systems when the terminal is bound. Binding to ensure the manageability of remote backend devices through the wireless public network.

(2) Operation and maintenance site data collection

The operation and maintenance field data collection is mainly to collect the operation and maintenance result data, which is an important prerequisite for data encryption transmission and data result verification. The specific functions are located as follows:

The terminal's own GPS positioning and RFID, two-dimensional code recognition technology, iODF intelligent optical distribution frame, and image recognition function are used for diversified collection of mobile operation and maintenance result data, and are collected by intelligent terminals to ensure the aging of power communication. At the same time, improve the standardization and accuracy of power transmission and maintenance.

(3) Data encryption, verification and decryption

Data encryption, verification, and decryption include encryption processing, data decryption, data result verification, verification result data encryption, and verification result decryption, as shown in Figure 2.

Data encryption is mainly to improve the security of data transmission over the wireless public network on the basis of ensuring remote system and terminal point-to-point communication.

The invention is based on the international data encryption algorithm (IDEA) in data encryption, and integrates the mobile device international identity code (IMEI) and the international mobile subscriber identity (IMSI) data on the existing algorithm, so that the existing encryption and decryption can be performed. The verification function for the terminal is added during the verification process, thereby improving the security and manageability of data transmission. As shown in Figure 3, the specific implementation method is as follows:

Encrypt the operation and maintenance field data. In the process of encrypting the collected data, the IMEI and IMSI data are introduced, and the IMEI and IMSI are calculated by the secret key generation algorithm of the international encryption algorithm, and 32 data conforming to the international encryption algorithm key rule are obtained (since the IMEI and the IMSI are each 15 bits, The other one is automatically generated by the system. The 32-bit data is randomly selected from the original 128-bit key and replaced with the 32-bit data calculated by IMEI and IMSI. It is also possible to select two consecutive 16-bit data to be replaced.

The remote system decrypts the received encrypted operation and maintenance field data. Using the corresponding decryption algorithm Decryption operation, after decrypting the data, because the parameters of IMEI and IMSI are obtained, the system will first verify the legality of IMEI and IMSI, and the legal data can be used to verify the result of the remote system. The data that has not passed the verification will be directly discarded and alarmed. .

The verification result obtained by verifying the data result of the remote system is encrypted. The verification result of the remote system is encrypted by the same method as the above-mentioned encrypted operation and maintenance field data.

The encrypted terminal decrypts the encrypted verification result, and the verification result data is decrypted by the same method as the decryption operation and maintenance field data.

The modules that need to participate in this part include data encryption, data decryption and data verification to implement data encryption processing, data decryption, data result verification, verification result data encryption and verification result decryption as shown in FIG. 2 .

Data encryption module, service name: pm_Encryptionmodel;

The data encryption module implements the encryption service before the data transmission in both the terminal and the remote system, and the encryption method adopts the current mainstream international data encryption algorithm (IDEA). The key of the International Data Encryption Algorithm (IDEA) has 128 bits. In the present invention, we will combine 30 of them as verification information of the Mobile Equipment International Identity (IMEI) and the International Mobile Subscriber Identity (IMSI). For the encryption of transmitted data.

The IDEA algorithm uses both confusion and diffusion. Its design principle is a hybrid operation from different algebraic groups, and the operation of this algebraic group: the 64-bit data input by the algorithm is divided into four 16-bit sub-groups as the first round. The input has a total of 8 iterations. In each round, they operate with each other and also with six 16-bit subkeys (each round is different), and finally output conversion with four 16-bit subkeys to produce an output. 52 16-bit subkeys participate in the operation. Entire algorithm package Including 3 parts:

a. Subkey generation: Input: 128b key; Output: 52 16b subkeys.

b. Encryption process: input: 52 subkeys and 64b data; output: 64b data.

c. Decryption process: The encryption process of the IDEA algorithm is different from the subkey of the decryption process, and the two are one-to-one correspondence.

IDEA requires a total of 52 subkeys, each with 16b, generated by a 128b key. The self-key divides 128b into 8 groups, each group 16b, and obtains K1, K2, K3, K4, K5, K6, K7, K8; shifts 128b to the left by 25 bits and then performs 16b grouping to obtain sub-keys K9, K10, K11, K12, K13, K14, K15, K16; then shift the 128b left to 25 bits and do the same grouping to get the subkeys K17, K18, K19, K20, K21, K22, K23, K24; and so on. Until all subkeys are generated.

In this algorithm, the key is 128b and the plaintext packet length is 64b. 64b is divided into four 16b sub-blocks: X1, X2, X3, and X4 are input to the first round. In each round, four input sub-blocks and six 16b sub-keys are respectively added as modulo 216. Multiply and XOR operations of modulo 216+1 yield 4 outputs as inputs for the next round. In this way, 8 rounds are performed in total, and finally 4 subkeys are used for output conversion.

Data decryption module, service name: pm_Decryptionmodel;

Similar to the encryption module, the decryption module is a decryption service for encrypted data after the terminal and the remote system receive the data. In addition to the simple decryption service, since we have added the Mobile Device International Identity (IMEI) and International Mobile Subscriber Identity (IMSI) information in the encryption, the data will be decrypted and the reliability of the data will be verified. The decrypted subkey block is composed of the inverse or multiplicative inverse of the encrypted subkey.

Data verification module, service name: pm_Datavalidationmodel;

The data comparison service is responsible for verifying the data collected by the terminal and transmitted to the remote system to determine whether the site has completed the operation and maintenance as required.

(4) Data transmission and data backhaul

Data transmission and data backhaul include collecting data transmission to the remote system and remote system verification information back to the terminal. After the terminal collects and encrypts the data, the terminal requests the remote system to establish a data transmission connection, and the data transmission connection may be a VPN transmission connection.

After the remote system performs legality verification on the mobile terminal international identity code (IMEI) and international mobile subscriber identity (IMSI) data of the smart terminal, the data transmission is performed by using 3G and 4G wireless transmission technologies. This data transfer is primarily the transfer of data to a remote system. The above legality verification process and data transmission process can be implemented in the following order. After the data transmission connection is established, the intelligent terminal first transmits a 128-bit international data encryption algorithm secret key to the remote system, and the secret key includes the mobile device international identity code (IMEI) and the international mobile subscriber identity (IMSI) of the smart terminal. After receiving the 128-bit key, the remote system first verifies that the accepted 128-bit key is correct, and then decrypts the 128-bit key to obtain the IMEI and IMSI data of the mobile device, and verifies the correctness of the IMEI and IMSI data and the mutual Correlate the relationship to verify the legitimacy of the decrypted data. After the legality is confirmed, the data transmission channel is established, and the intelligent terminal transmits the encrypted operation and maintenance field data to the remote system. The remote system then decrypts the encrypted operation and maintenance field data.

When the verification result needs to be transmitted back to the smart terminal, the remote system requests to return data to the smart terminal. The terminal will again send the data containing the Mobile Equipment International Identity (IMEI) and International Mobile Subscriber Identity (IMSI) information to the remote system, and the remote system confirms the data and then returns the data. The remote system returns data to the intelligent terminal, and the smart terminal transmits the data to the remote system, and also includes the process of verifying the validity of the IMEI and IMSI data of the smart terminal before performing data transmission. The past The process can be implemented in the following order. After the data transmission connection is established, the intelligent terminal first transmits a 128-bit key to the remote system, and the key includes the IMSI and IMEI of the intelligent terminal. After the remote system accepts the 128-bit key, it first verifies that the accepted 128-bit key is correct, then decrypts the 128-bit key and verifies the decrypted data by verifying the correctness and mutual relationship between the intelligent terminal IMEI and IMSI data. Legitimacy. After the legality is confirmed, a data transmission channel is established, and the remote system transmits the encrypted verification result to the intelligent terminal. The intelligent terminal then decrypts the encrypted verification result.

In addition to the above-described embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

A method for verifying encrypted transmission and transmission of on-site operation and maintenance data of a power communication network, characterized in that the method comprises the following steps:

Step 1: Binding of the intelligent terminal: realizing the binding management of the remote system to the intelligent terminal in the wireless transmission public network by using the mobile device international identity code and the international mobile subscriber identity code;

Step 2: Data collection in the operation and maintenance field: The intelligent terminal is configured with an infrared scanning function to collect the operation and maintenance field data;

Step 3: Data encryption processing: Combine 30 bits of the 128-bit key of the international data encryption algorithm as the verification information of the mobile device international identity code and the international mobile subscriber identity, and randomly select the secret in the process of encrypting the collected data. 32 consecutive data in the key, 16 bits are 1 group, 2 groups, 2 sets of data are replaced with mobile device international identity code and international mobile subscriber identity, respectively, because the mobile device international identity code and international mobile subscriber identity are 15 Bit, one bit of each group of 16-bit data is randomly generated, thereby encrypting the transmitted data;

Step 4: Data transmission: using a wireless public network to implement data transmission between the bound intelligent terminal and the remote system;

Step 5: Data decryption: decrypting the received data by the remote system by using the secret key used by the data encryption processing method; the decrypted subkey block is composed of the addition inverse or multiplication inverse of the encrypted subkey; after decrypting the data, by moving The device international identity code and the international mobile subscriber identity code verify the legality of the decrypted data, and the data can be legally verified for the next data result, and the data that has not passed the verification will be directly discarded and alarmed;

Step 6. Data result verification: The data result verification is a process of verifying whether the transmission data meets the requirements of the operation and maintenance site by using the remote system, and the verification result will be fed back regardless of whether the verification result is correct or not. The data comparison service is responsible for verifying the data collected and transmitted by the terminal to the remote system to determine whether the site has completed the operation and maintenance as required;

Step 7, the verification result data is encrypted: the data of the verification result after the remote verification is encrypted by referring to the data encryption method in step 3;

Step 8, data backhaul: use the wireless public network to realize point-to-point transmission of the remote system and the intelligent terminal, and realize correct return of the verification result data;

Step 9: Decryption of the verification result: After verifying the legality of the decrypted data by using the mobile device international identity code and the international mobile subscriber identity, the smart terminal decrypts the accepted verification result data to determine the scene. Whether the operation and maintenance results meet the requirements.
The method for verifying the encrypted operation of the field operation and maintenance data of the power communication network according to claim 1, wherein the data encryption process in the step 3 is to replace the separated two sets of consecutive 16-bit data with the mobile device international identity code and the international The mobile subscriber identity code is randomly generated by one of each group of 16-bit data.
The method for verifying the encrypted operation of the field operation and maintenance data of the power communication network according to claim 1 or 2, wherein the data transmission in the step 4 refers to transmitting a 128-bit international data encryption algorithm key, and the key includes the intelligence. The international identity code of the terminal and the international mobile subscriber identity information are to be verified by using the international identity code of the smart terminal and the international mobile subscriber identity code, and then the encrypted operation and maintenance field data is transmitted.
The method for verifying the encrypted operation of the field operation and maintenance data of the power communication network according to claim 3, wherein the process of decrypting the data in the step 5 comprises: verifying, at the remote system, whether the accepted 128-bit key is correct, and then decrypting 128. The bit key obtains the international identity code IMEI of the intelligent terminal and the international mobile subscriber identity IMSI, and verifies the mobile device international identity code IMEI and the international mobile subscriber identity code. The correctness of the IMSI data and the relationship between them are verified to verify the legality of the decrypted data. After confirming the legality of the decrypted data, the remote system accepts the encrypted operation and maintenance field data from the intelligent terminal and performs the encrypted operation and maintenance. The field data is decrypted.
The method for verifying the on-site operation and maintenance data encryption transmission of the power communication network according to claim 1 or 2 or 4, wherein the intelligent terminal that performs the operation and maintenance field data collection in step 2 further configures an RFID identification function.
The method for verifying the on-site operation and maintenance data encryption transmission of the power communication network according to claim 1 or 2 or 4, wherein the intelligent terminal of the operation and maintenance field data collection in the step 2 further configures the GIS function.
The method for verifying the on-site operation and maintenance data encryption transmission of the power communication network according to claim 1 or 2 or 4, wherein the intelligent terminal that performs the operation and maintenance field data collection in the step 2 further configures the air pressure measurement function.