CN119052801A - Data security communication method, system and storage medium for civil air defense engineering - Google Patents
Data security communication method, system and storage medium for civil air defense engineering Download PDFInfo
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- 238000004891 communication Methods 0.000 title claims abstract description 72
- 230000007123 defense Effects 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 44
- 230000002776 aggregation Effects 0.000 claims abstract description 21
- 238000004220 aggregation Methods 0.000 claims abstract description 21
- 230000007613 environmental effect Effects 0.000 claims abstract description 17
- 238000011156 evaluation Methods 0.000 claims abstract description 8
- 230000004927 fusion Effects 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 5
- 230000007958 sleep Effects 0.000 claims description 4
- 108700026140 MAC combination Proteins 0.000 claims description 3
- 238000004590 computer program Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000007726 management method Methods 0.000 description 7
- 230000006855 networking Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 230000005059 dormancy Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/12—Detection or prevention of fraud
- H04W12/126—Anti-theft arrangements, e.g. protection against subscriber identity module [SIM] cloning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
- H04W12/043—Key management, e.g. using generic bootstrapping architecture [GBA] using a trusted network node as an anchor
- H04W12/0431—Key distribution or pre-distribution; Key agreement
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
- H04W40/10—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources based on available power or energy
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Computer Security & Cryptography (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a data security communication method, a system and a storage medium for civil air defense engineering, and relates to the field of data communication. The method comprises the steps of installing Internet of things information acquisition equipment in civil air defense engineering, constructing an ad hoc network topological structure based on the Internet of things information acquisition equipment, determining ID information and communication channels for each Internet of things acquisition equipment, transmitting the Internet of things information to a blockchain by an information acquisition layer, storing and setting public keys, broadcasting the Internet of things information by the blockchain, determining the Internet of things information according to broadcasting content and private keys of the Internet of things information by an information aggregation transmission layer, transmitting the determined Internet of things information to an application layer according to the type and different security level requirements by the information aggregation transmission layer, receiving, storing and displaying data according to the type by the application layer, analyzing the data by a data fusion algorithm, and realizing comprehensive evaluation and early warning of environmental quality. The environment data acquisition, text transmission, voice communication and the like are taken as application scenes, and an underground Internet of things sensing system which is autonomous and controllable, safe and reliable is constructed.
Description
Technical Field
The invention relates to the field of data communication, in particular to a data security communication method, a system and a storage medium for civil air defense engineering.
Background
The communication security is different from the information security, and the security is established at the signal level, and the specific data information content is not involved. This security provides a physical guarantee for the correct, reliable transmission of information. In the field of communications, a series of measures and techniques for protecting the security of communication networks and information, i.e. the security of communication industry networks, have become an important infrastructure for the operation of industries in modern society. The communication security of underground civil air defense engineering is particularly required to be effectively ensured, so that how to effectively ensure the communication security of underground civil air defense engineering is a urgent need for research by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a data security communication method, a system and a storage medium for civil air defense engineering, which take environmental data acquisition, text transmission, voice communication and the like as application scenes to construct an underground Internet of things sensing system which is autonomously controllable, safe and reliable.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A data security communication method for civil air defense engineering, comprising the steps of:
An Internet of things information acquisition device is installed in the civil air defense engineering, an ad hoc network topological structure based on the Internet of things information acquisition device is constructed, and the ad hoc network topological structure divides environmental monitoring into an information acquisition layer, an information aggregation transmission layer and an application layer;
Each node containing the acquisition equipment of the Internet of things in the ad hoc network topological structure periodically establishes a communication link with the gateway, and each node broadcasts own link parameters in a pre-designated broadcast channel, so that ID information and communication channels are determined for each acquisition equipment of the Internet of things;
The information acquisition layer transmits the acquired ID information, communication channels and corresponding Internet of things information of the Internet of things acquisition equipment to the blockchain for storage and public key setting, the blockchain broadcasts the Internet of things information, and the information aggregation transmission layer determines the Internet of things information according to broadcast content and self private keys;
The information aggregation transmission layer transmits the determined information of the Internet of things to the application layer according to the category and different security level requirements, the application layer receives, stores and displays data according to the category, and analyzes the data through a data fusion algorithm to realize comprehensive evaluation and early warning of environmental quality.
Optionally, in the ad hoc network topology structure, the MAC protocol of the data link layer and the routing protocol of the network layer are modified to optimize the ad hoc network performance, specifically, the routing layer obtains the length of the data link layer through the MAC layer, calculates the link with the minimum link cost by using the ant colony algorithm to communicate, and adds a relay probability hierarchical broadcasting strategy in the intermediate node.
Optionally, a plurality of autonomously operated distributed nodes are arranged in the ad hoc network topology structure, and when a node connected with the internet of things acquisition equipment in the ad hoc network topology structure fails, the distributed nodes serve as standby nodes to take over the work of the failed node.
Optionally, different transmission modes of time slot uplink, ACK downlink and time slot downlink are adopted for the ad hoc network topology structure, a dormancy module is created for the node, and when the node is in an idle state and exceeds a preset time value, the dormancy module is triggered, and the node enters a dormancy state.
Optionally, the self-networking network is constructed by utilizing the characteristics of low power consumption and long transmission distance of the domestic LPWAN technology.
Optionally, a back-off algorithm is designed for the MAC sublayer to reduce collision conflict of different node contention channels and reduce the probability of collision between nodes.
A data security communication system for civil air defense construction, comprising:
the self-networking topological structure construction module is used for installing the information acquisition equipment of the Internet of things in the civil air defense engineering, constructing a self-networking topological structure based on the information acquisition equipment of the Internet of things, and dividing environmental monitoring into an information acquisition layer, an information aggregation transmission layer and an application layer by the self-networking topological structure;
The system comprises an Internet of things acquisition equipment information determining module, a gateway, a network management module and a network management module, wherein the Internet of things acquisition equipment information determining module is used for periodically establishing a communication link with the gateway by each node containing the Internet of things acquisition equipment in an ad hoc network topological structure, and broadcasting own link parameters by each node in a pre-designated broadcasting channel so as to determine ID information and communication channels for each Internet of things acquisition equipment;
The information acquisition layer is used for transmitting the acquired ID information, communication channels and corresponding Internet of things information of the Internet of things acquisition equipment to the blockchain for storage and setting of public keys, the blockchain broadcasts the Internet of things information, and the information convergence transmission layer determines the Internet of things information according to broadcast content and self private keys;
The data aggregation module of the Internet of things is used for transmitting the determined information of the Internet of things to the application layer according to the category and different security level requirements by the information aggregation transmission layer, receiving, storing and displaying data by the application layer according to the category, analyzing the data by the data fusion algorithm, and realizing comprehensive evaluation and early warning of environmental quality.
A computer storage medium having a computer program stored thereon, which when executed by a processor, implements the steps of any one of the data security communication methods for civil air defense engineering.
Compared with the prior art, the invention provides the data security communication method, the system and the storage medium for civil air defense engineering, which have the following beneficial effects:
1. Analyzing the existing security holes, starting from the aspects of network architecture, key distribution mechanism, updating scheme and the like, researching a data encryption scheme and improving the security of wireless communication. And the key management and distribution during networking are utilized to meet the data transmission requirements of different security levels. And in combination with engineering practice, a flexible communication system architecture is designed to meet the requirements of different types of civil air defense engineering.
2. And optimizing a network routing protocol at a network layer, automatically optimizing and selecting a routing path according to the signal intensity and the residual energy of the nodes, and balancing the energy consumption of the routing nodes on the basis of ensuring the transmission reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
fig. 3 is a hardware block diagram of the comprehensive measuring instrument of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention discloses a data security communication method for civil air defense engineering, which comprises the following steps:
Firstly, installing an information acquisition device of the Internet of things in a civil air defense project, and constructing an ad hoc network topological structure based on the information acquisition device of the Internet of things, wherein the ad hoc network topological structure divides environmental monitoring into an information acquisition layer, an information aggregation transmission layer and an application layer;
Step two, periodically establishing a communication link between each node containing the acquisition equipment of the Internet of things and the gateway in the ad hoc network topological structure, and broadcasting the link parameters of each node in a pre-designated broadcasting channel by each node so as to determine ID information and communication channels for each acquisition equipment of the Internet of things;
Transmitting the acquired ID information, communication channels and corresponding Internet of things information of the Internet of things acquisition equipment to a blockchain for storage and setting a public key by an information acquisition layer, broadcasting the Internet of things information by the blockchain, and determining the Internet of things information by an information aggregation transmission layer according to broadcasting content and a private key of the information aggregation transmission layer;
And step four, the information aggregation transmission layer transmits the determined information of the Internet of things to the application layer according to the category and different security level requirements, the application layer receives, stores and displays data according to the category, and analyzes the data through a data fusion algorithm to realize comprehensive evaluation and early warning of environmental quality.
In order to realize environmental parameter data transmission in civil air defense engineering, the node networking cost is reduced as much as possible and the reliability is improved. The information acquisition equipment of the Internet of things, namely the monitoring instrument, has various wireless and wired communication interfaces and has higher networking flexibility. The environment monitoring system is divided into an information acquisition layer, an information convergence transmission layer and an application layer. Any one monitoring instrument with an Ethernet connection may be configured as a gateway and the remaining monitors as terminals for collecting environmental parameters. In general, LPWAN internet of things technology is adopted to form a distributed internet of things network, and data are converged through a gateway and transmitted to an application layer. In special occasions, a wireless communication technology and RS485/Ethernet wired communication mixed networking mode is adopted, or the node itself is used as an information acquisition layer and a transmission layer to directly transmit data to an application layer. The application layer side adopts a C# development environment quality comprehensive monitoring platform and is responsible for data receiving, data storage and display, and the data is analyzed through a data fusion algorithm, so that environment quality comprehensive evaluation and early warning are realized.
Further, in the first step, according to different transmission content requirements of various application scenes such as environmental data acquisition, text transmission, voice communication and the like in underground civil air defense engineering, a domestic LPWAN wireless communication technology with low power consumption and long communication distance is selected, and a topological structure of an underground wireless communication network is formulated according to the technical characteristics of the technology. And (3) taking the domestic microprocessor as a core, and carrying out device selection on the domestic RAM, flash, communication chips and the like to complete hardware electronic circuit design and software application program design. A communication terminal, a route and a gateway which are provided with various wired and wireless communication interfaces and support the domestic LPWAN wireless communication technology are developed. An underground ad hoc network communication network based on the domestic LPWAN technology is built. The method comprises the steps of reading key parameters such as wireless signal quality, network state, network time and the like through a wireless transmission physical layer chip by utilizing an autonomously developed communication terminal, routing and gateway, carrying out an ad hoc network communication test in underground civil air defense engineering, researching and analyzing the influence of an underground complex environment on wireless signal intensity and transmission distance.
More specifically, the invention takes a microcontroller or a microprocessor as a core, and performs hardware development through the design of a power management circuit, a sensor signal processing circuit, a safety management circuit, a storage circuit, a sensor signal acquisition circuit and a communication interface circuit. The hardware structure of the hardware system is shown in fig. 3. The microcontroller or the peripheral resources of the microprocessor are fully utilized to realize signal acquisition of various gas sensors, and the safety chip is utilized to realize data encryption storage and transmission of different processing functions. A plurality of communication circuits are designed on a single instrument, including RS485 and Ethernet wired communication, wireless communication circuits such as WIFI, 4G and LoRa, and the like, so that the requirements of wired and wireless hybrid networking are met, and information sensing and transmission gateways are integrated into a whole, thereby providing a foundation for flexible and reliable networking.
Furthermore, in order to reduce the probability of collision between nodes and reduce the power consumption of the nodes, a stable route path is selected independently and optimally, and the problem is to modify the MAC protocol of the data link layer and the route protocol of the network layer so as to optimize the ad hoc network performance. The routing layer obtains the length of a data link layer through the MAC layer, calculates a link with the minimum link cost by utilizing an ant colony algorithm to communicate, and adds a relay probability hierarchical broadcasting strategy in the intermediate node.
Further, a plurality of autonomous running distributed nodes are arranged in the ad hoc network topological structure, and when the nodes connected with the Internet of things acquisition equipment in the ad hoc network topological structure are in fault, the distributed nodes serve as standby nodes to take over the work of the fault nodes.
Furthermore, different transmission modes of time slot uplink, ACK downlink and time slot downlink are adopted for the ad hoc network topological structure, a dormant module is created for the node, and when the node is in an idle state and exceeds a preset time value, the dormant module is triggered, and the node enters a dormant state.
Furthermore, the self-networking network is constructed by utilizing the characteristics of low power consumption and long transmission distance of the domestic LPWAN technology. Different transmission modes such as time slot uplink, ACK downlink, time slot downlink and the like are adopted for the network, and the low-power consumption design is carried out by combining the deep sleep mode of the node. And when the ad hoc network is in communication, multi-hop transmission is realized by further utilizing multi-level routing, so that the communication distance is further extended. Through software development and configuration, LPWAN wireless communication nodes have terminal functions and routing functions at the same time, so that a distributed ad hoc network is realized.
Further, in this embodiment, a backoff algorithm designed reasonably for the MAC sublayer reduces collision collisions of contention channels of different nodes, and reduces the probability of collision between nodes. And optimizing a network routing protocol at a network layer, automatically optimizing and selecting a routing path according to the signal intensity and the residual energy of the nodes, and balancing the energy consumption of the routing nodes on the basis of ensuring the transmission reliability.
Corresponding to the method shown in fig. 1, the invention also discloses a data security communication system for civil air defense engineering, which is used for realizing the method of fig. 1, and the specific structure is shown in fig. 2, and comprises:
the self-networking topological structure construction module is used for installing the information acquisition equipment of the Internet of things in the civil air defense engineering, constructing a self-networking topological structure based on the information acquisition equipment of the Internet of things, and dividing environmental monitoring into an information acquisition layer, an information aggregation transmission layer and an application layer by the self-networking topological structure;
The system comprises an Internet of things acquisition equipment information determining module, a gateway, a network management module and a network management module, wherein the Internet of things acquisition equipment information determining module is used for periodically establishing a communication link with the gateway by each node containing the Internet of things acquisition equipment in an ad hoc network topological structure, and broadcasting own link parameters by each node in a pre-designated broadcasting channel so as to determine ID information and communication channels for each Internet of things acquisition equipment;
The information acquisition layer is used for transmitting the acquired ID information, communication channels and corresponding Internet of things information of the Internet of things acquisition equipment to the blockchain for storage and setting of public keys, the blockchain broadcasts the Internet of things information, and the information convergence transmission layer determines the Internet of things information according to broadcast content and self private keys;
The data aggregation module of the Internet of things is used for transmitting the determined information of the Internet of things to the application layer according to the category and different security level requirements by the information aggregation transmission layer, receiving, storing and displaying data by the application layer according to the category, analyzing the data by the data fusion algorithm, and realizing comprehensive evaluation and early warning of environmental quality.
The embodiment finally discloses a computer storage medium, on which a computer program is stored, which when executed by a processor implements the steps of any one of the data security communication methods for civil air defense engineering.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The data security communication method for the civil air defense engineering is characterized by comprising the following steps of:
An Internet of things information acquisition device is installed in the civil air defense engineering, an ad hoc network topological structure based on the Internet of things information acquisition device is constructed, and the ad hoc network topological structure divides environmental monitoring into an information acquisition layer, an information aggregation transmission layer and an application layer;
Each node containing the acquisition equipment of the Internet of things in the ad hoc network topological structure periodically establishes a communication link with the gateway, and each node broadcasts own link parameters in a pre-designated broadcast channel, so that ID information and communication channels are determined for each acquisition equipment of the Internet of things;
The information acquisition layer transmits the acquired ID information, communication channels and corresponding Internet of things information of the Internet of things acquisition equipment to the blockchain for storage and public key setting, the blockchain broadcasts the Internet of things information, and the information aggregation transmission layer determines the Internet of things information according to broadcast content and self private keys;
The information aggregation transmission layer transmits the determined information of the Internet of things to the application layer according to the category and different security level requirements, the application layer receives, stores and displays data according to the category, and analyzes the data through a data fusion algorithm to realize comprehensive evaluation and early warning of environmental quality.
2. The data security communication method for civil air defense engineering according to claim 1, wherein in an ad hoc network topology structure, a MAC protocol of a data link layer and a routing protocol of a network layer are modified to optimize ad hoc network performance, specifically, the routing layer obtains a length of the data link layer through the MAC layer, calculates a link with a minimum link cost by using an ant colony algorithm to communicate, and adds a relay probability hierarchical broadcasting strategy at an intermediate node.
3. The data security communication method for civil air defense engineering according to claim 1, wherein a plurality of autonomously operated distributed nodes are arranged in an ad hoc network topology, and when a node connected with an internet of things acquisition device in the ad hoc network topology fails, the distributed nodes serve as standby nodes to take over the work of the failed node.
4. The method for data security communication in civil air defense engineering according to claim 1, wherein different transmission modes including slotted uplink, ACK downlink and slotted downlink are adopted for the ad hoc network topology, a sleep module is created for the node, and when the node is in an idle state and exceeds a preset time value, the sleep module is triggered, and the node enters a sleep state.
5. The data security communication method for civil air defense engineering according to claim 1, wherein an ad hoc network is constructed by utilizing the characteristics of low power consumption and long transmission distance of the domestic LPWAN technology.
6. The data security communication method for civil air defense engineering according to claim 1, wherein a back-off algorithm is designed for the MAC sublayer to reduce collision collisions of contention channels of different nodes and reduce probability of collision between nodes.
7. A data security communication system for civil air defense construction, comprising:
the self-networking topological structure construction module is used for installing the information acquisition equipment of the Internet of things in the civil air defense engineering, constructing a self-networking topological structure based on the information acquisition equipment of the Internet of things, and dividing environmental monitoring into an information acquisition layer, an information aggregation transmission layer and an application layer by the self-networking topological structure;
The system comprises an Internet of things acquisition equipment information determining module, a gateway, a network management module and a network management module, wherein the Internet of things acquisition equipment information determining module is used for periodically establishing a communication link with the gateway by each node containing the Internet of things acquisition equipment in an ad hoc network topological structure, and broadcasting own link parameters by each node in a pre-designated broadcasting channel so as to determine ID information and communication channels for each Internet of things acquisition equipment;
The information acquisition layer is used for transmitting the acquired ID information, communication channels and corresponding Internet of things information of the Internet of things acquisition equipment to the blockchain for storage and setting of public keys, the blockchain broadcasts the Internet of things information, and the information convergence transmission layer determines the Internet of things information according to broadcast content and self private keys;
The data aggregation module of the Internet of things is used for transmitting the determined information of the Internet of things to the application layer according to the category and different security level requirements by the information aggregation transmission layer, receiving, storing and displaying data by the application layer according to the category, analyzing the data by the data fusion algorithm, and realizing comprehensive evaluation and early warning of environmental quality.
8. A computer storage medium, characterized in that the computer storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of a data security communication method for civil air defense works as claimed in any one of claims 1-6.
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