CN113194015A - Internet of things intelligent household equipment safety control method and system - Google Patents
Internet of things intelligent household equipment safety control method and system Download PDFInfo
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Abstract
The invention relates to the technical field of equipment safety control, and discloses an Internet of things intelligent household equipment safety control method, which comprises the following steps: collecting equipment information and a network address of the Internet of things intelligent household equipment, and storing the equipment information and the network address into a database; cleaning the equipment information and the network address stored in the database, and establishing an association mapping relation between the network address and the household equipment by using the cleaned equipment information and the network address; encrypting the association mapping relation by using an intelligent security model; the user inputs the control instruction of the intelligent household equipment into the intelligent household Internet of things system, the intelligent household Internet of things system verifies the control instruction of the intelligent household equipment, and if the verification is successful, the control instruction of the intelligent household equipment sent by the user is executed. The invention also provides a safety control system of the Internet of things intelligent household equipment. The invention realizes the safety control of the equipment.
Description
Technical Field
The invention relates to the technical field of equipment safety control, in particular to a method and a system for safety control of Internet of things intelligent household equipment.
Background
With the continuous development of modern information technology, the internet of things has entered various fields and is widely applied, wherein the smart home internet of things has also been rapidly developed and has gone into thousands of households.
The development of the internet of things brings a new security check, and because the internet of things equipment is often resource-limited, some complex operations requiring a large amount of resources are difficult to execute, so that the authentication strategy commonly used in the existing internet is difficult to be directly used in the internet of things equipment. If the safety certification problem of the equipment of the Internet of things cannot be solved, great potential safety hazard is brought. With the increasingly serious loss problem of the safety protection measures of the equipment of the Internet of things, the equipment safety problem frequently occurs, and huge economic loss is caused.
In view of this, how to manage the smart home devices and achieve safer security control of the smart home devices becomes a problem to be urgently solved by technical personnel in the field.
Disclosure of Invention
The invention provides a safety control method of Internet of things intelligent household equipment, which comprises the steps of collecting equipment information and a network address of the Internet of things intelligent household equipment, and establishing an association mapping relation between the network address and the household equipment; encrypting the association mapping relation by using an intelligent security model; the user inputs the control instruction of the intelligent household equipment into the intelligent household Internet of things system, the intelligent household Internet of things system verifies the control instruction of the intelligent household equipment, if the verification is successful, the control instruction of the intelligent household equipment sent by the user is executed, otherwise, the control instruction is not executed, and the message with inconsistent authentication is fed back to the user in a short message mode to remind the user of the existence of a safety event.
In order to achieve the purpose, the invention provides a safety control method for intelligent household equipment of the internet of things, which comprises the following steps:
collecting equipment information and a network address of the Internet of things intelligent household equipment, and storing the equipment information and the network address into a database;
cleaning the equipment information and the network address stored in the database, and establishing an association mapping relation between the network address and the household equipment by using the cleaned equipment information and the network address;
encrypting the incidence mapping relation by using an intelligent security model according to the established incidence mapping relation;
the user inputs the control instruction of the intelligent household equipment into the intelligent household Internet of things system, the intelligent household Internet of things system verifies the control instruction of the intelligent household equipment, if the verification is successful, the control instruction of the intelligent household equipment sent by the user is executed, otherwise, the control instruction is not executed, and the message with inconsistent authentication is fed back to the user in a short message mode to remind the user of the existence of a safety event.
Optionally, the collecting device information and a network address of the internet of things smart home device includes:
the intelligent household equipment mainly comprises electric household equipment, water conservancy household equipment and gas household equipment, the network address is a response message of an HTTP (hyper text transport protocol) protocol of the intelligent household equipment, and the information of the intelligent household equipment comprises the type, manufacturer and model of the intelligent household equipment;
the method comprises the following steps of collecting equipment information and network addresses of the Internet of things intelligent household equipment:
1) randomly positioning an IP address detector, mixing the detector with a plurality of subnets, and completely randomly arranging the IP addresses of the IP address space of the household equipment, thereby reducing the instantaneous load of each network and generating random sampling without deviation;
2) sending a detection packet by using an IPv4 network address, and judging whether the Internet of things network address of each household device is alive or not;
3) establishing TCP three-way handshake connection for each live internet of things network address, acquiring response messages of an HTTP (hyper text transport protocol) at ports 80, 81 and 82, storing the acquired response messages according to a JSON (Java Server pages) format, and storing the stored JSON format information into a database, wherein a main key of the JSON format is the internet of things network address, and the value is the device information corresponding to the intelligent household equipment.
Optionally, the cleaning the device information and the network address stored in the database includes:
1) deleting error data of the HTTP response message, wherein the error data comprises a response message of an error state code;
2) in one embodiment of the present invention, when two internet of things devices come from the same vendor and the same product, their response data packets may be the same, and these duplicate data packets have the same information entropy value for the fingerprint of the construction networking device, so if the same MD5 values of the two response messages are the same, it is considered that their corresponding (internet of things network address, device information of the smart home device) is redundant data, thereby deleting redundant duplicate content;
3) and setting a response message structure threshold, if the DOM tree structure of the response message is larger than the response message structure threshold, considering that the current response message is from other commercial websites or servers, and deleting the current response message.
Optionally, the establishing an association mapping relationship between the network address and the home device by using the cleaned device information and the network address includes:
and establishing a mapping relation graph of the network address and the equipment information, wherein in the mapping relation graph, besides the nodes marked as the intelligent household equipment nodes, the mapping relation graph also comprises 3 nodes, wherein the gray nodes represent the types of the intelligent household equipment and are mainly divided into electric household equipment, water conservancy household equipment and gas household equipment, the blue nodes represent the network address of the intelligent household equipment, and the red nodes represent the brand and the model of the intelligent household equipment.
Optionally, the encrypting the association mapping relationship by using the intelligent security model includes:
the intelligent security model comprises an Internet of things cloud server and K encryption servers, wherein the Internet of things cloud server is responsible for issuing an association mapping relation to the encryption servers, and the encryption servers are responsible for encrypting the association mapping relation;
the process of encrypting the association mapping relation by using the intelligent security model comprises the following steps:
establishing an intelligent security model objective function, wherein the objective function is to maximize the security of the internet of things after encryption processing of the incidence mapping relation, and the objective function is as follows:
wherein:
nhthe h-th part after the division is associated with a mapping relation;
n represents the total number of the parts needing to be encrypted in the association mapping relation;
ah，mparameter indicating that the encryption server h performs the encryption algorithm m, if a is present in one embodiment of the present inventionh，mIf "0", it means that the encryption server h does not execute the encryption algorithm m, and if "a" indicates that the encryption server h does not execute the encryption algorithm m h，m1, the encryption server h executes the encryption algorithm m;
sh，mrepresenting the security of the encryption server h to execute the encryption algorithm m;
f represents the CPU rate of the cloud server;
fhrepresents the CPU rate of the encryption server h;
bh，mrepresenting the execution efficiency of the encryption server h to execute the encryption algorithm m;
by solving the intelligent security model objective function, different encryption servers adopt different encryption algorithms to encrypt the association mapping relation, and the maximization of the overall security performance of the Internet of things is ensured.
Optionally, the verifying the smart home device control instruction by the smart home internet of things system includes:
the intelligent home Internet of things system is provided with a server and an auxiliary server, the server plays a role in selecting system encryption parameters and issuing parameters used for system operation, and in addition, when a user registers at the server, the server generates parameters for a user account and sends the parameters to intelligent home equipment through a safety channel; while the server locally retains some parameters and sends some of the parameters to the secondary server over a secure channel. When a user logs in for authentication, the auxiliary server is added to cooperate with the server to perform security authentication.
In a specific embodiment of the present invention, two servers are deployed in the same local area network, and an auxiliary server is deployed on a public network at the same time, so that the auxiliary server has a public network IP address, that is, the auxiliary server can be accessed through the internet at other places, and by setting a firewall in the local area network, only the local area network IP address of the auxiliary server is allowed to access the server through the firewall, and all other requests are rejected. By using the arrangement, only the auxiliary server can access the server, and other objects can not contact the server at all, so that the safety of the server is ensured;
when a user controls the intelligent home equipment, a control command message and a message authentication code are sent to an intelligent home Internet of things system, wherein the generation flow of the message authentication code is as follows:
1) the intelligent home Internet of things generates a key K with n bytes for each effective user, wherein n is more than 1 and less than 256;
2) initializing arrays S and T, arranging elements in S from 0 to 255 in an ascending order, namely S [0] equals 0, and S [255] equals 255, and assigning values to the elements in the array T by using a secret key K;
3) initializing i and j to be 0, setting the circulation range of i to be 1-255, taking the value of i each time, calculating j ═ j + Si + T [ j ]), and exchanging Si and Sj;
4) setting the group number of the sub-keys as m, initializing r to be 0, circularly assigning r from 1-32 m, for each r, i is (i +1) mod256, j is (j + S [ i ]) mod256, exchanging S [ i ] and S [ j ], calculating t is (S [ i ] + S [ j ]) mod256, and assigning S [ t ] to K [ r ]; grouping the K [ r ] obtained by assignment by 32 bytes to obtain m groups of encryption sub-keys; the result of encrypting the user key K by using the encryption sub-key is the message authentication code;
when a user logs in the intelligent home Internet of things system and inputs a control command message, the intelligent home Internet of things system receives the control command message and obtains a secret key K of the user by identifying fingerprint information of the user, if the secret key K of the user is not obtained, the current user is regarded as an invalid user, and the message of the invalid user is fed back to the user in a short message mode to remind the user of the existence of a safety event;
and encrypting and converting the key K to generate a message authentication code, transmitting the message authentication code and a control command message into corresponding intelligent home Internet of things equipment, decrypting and verifying the message authentication code by using the user key K by the intelligent home equipment, obtaining the control command message by the intelligent home equipment if the decryption and verification are successful, executing an intelligent home equipment control command sent by the user, otherwise, not executing the decryption, and feeding back the message with inconsistent authentication to the user in a short message manner to remind the user of the existence of a security event.
In addition, in order to achieve the above object, the present invention further provides a system for controlling security of an internet of things smart home device, where the system includes:
the household equipment information acquisition device is used for collecting equipment information and network addresses of the intelligent household equipment of the Internet of things and storing the equipment information and the network addresses into the database;
the data processor is used for cleaning the equipment information and the network address stored in the database and establishing an association mapping relation between the network address and the household equipment by using the cleaned equipment information and the network address;
and the household equipment control device is used for encrypting the incidence mapping relation by using the intelligent security model, inputting the control command of the intelligent household equipment into the intelligent household Internet of things system, verifying the control command of the intelligent household equipment by the intelligent household Internet of things system, executing the control command of the intelligent household equipment sent by the user if the verification is successful, otherwise, not executing the verification, and feeding back the message with inconsistent authentication to the user in a short message mode to remind the user of the existence of a security event.
In addition, to achieve the above object, the present invention further provides a computer-readable storage medium, where home device control program instructions are stored on the computer-readable storage medium, and the home device control program instructions may be executed by one or more processors to implement the steps of the implementation method for security control of the internet of things smart home device as described above.
Compared with the prior art, the invention provides a safety control method for intelligent household equipment of the Internet of things, which has the following advantages:
firstly, according to the established mapping relation between the network address and the equipment information, an intelligent security model is used for carrying out encryption processing on the association mapping relation, the intelligent security model comprises an Internet of things cloud server and K encryption servers, the Internet of things cloud server is responsible for issuing the association mapping relation to the encryption servers, the encryption servers are responsible for carrying out encryption processing on the association mapping relation, the Internet of things cloud server carries out segmentation processing on the association mapping relation, and different encryption servers adopt different encryption algorithms to carry out encryption processing on part of the association mapping relation; the process of encrypting the association mapping relation by using the intelligent security model comprises the following steps: establishing an intelligent security model objective function, wherein the objective function is as follows:
wherein: n ishThe h-th part after the division is associated with a mapping relation; n represents the total number of the parts needing to be encrypted in the association mapping relation; a ish，mA parameter indicating that the encryption server h executes the encryption algorithm m if ah，mIf "0", it means that the encryption server h does not execute the encryption algorithm m, and if "a" indicates that the encryption server h does not execute the encryption algorithm m h，m1 means encryptionThe server h executes an encryption algorithm m; sh，mRepresenting the security of the encryption server h to execute the encryption algorithm m; in the algorithm of the invention, different encryption servers adopt different encryption algorithms if ah，m＝1，ah，msh，mThe security of executing the encryption algorithm m for the encryption server h is represented, the incidence mapping relation is divided, each divided part is encrypted by using different encryption servers, and the security of the cloud server of the internet of things is the security of executing the encryption algorithm m for all the encryption servers
If the value of the target function reaches the maximum value, the security of the current internet of things cloud server reaches the maximum value, and the encryption algorithm executed by each encryption server ensures the maximization of the overall security performance of the internet of things cloud server.
Meanwhile, the invention provides a control strategy of intelligent household equipment, firstly, an intelligent household Internet of things generates a key K of n bytes for each effective user, wherein n is more than 1 and less than 256; initializing arrays S and T, arranging elements in S from 0 to 255 in an ascending order, namely S [0] equals 0, and S [255] equals 255, and assigning values to the elements in the array T by using a secret key K; initializing i and j to be 0, setting the circulation range of i to be 1-255, taking the value of i each time, calculating j ═ j + Si + T [ j ]), and exchanging Si and Sj; setting the group number of the sub-keys as m, initializing r to be 0, circularly assigning r from 1-32 m, for each r, i is (i +1) mod256, j is (j + S [ i ]) mod256, exchanging S [ i ] and S [ j ], calculating t is (S [ i ] + S [ j ]) mod256, and assigning S [ t ] to K [ r ]; grouping the K [ r ] obtained by assignment by 32 bytes to obtain m groups of encryption sub-keys; the result of encrypting the user key K by using the encryption sub-key is the message authentication code; when a user logs in the intelligent home Internet of things system and inputs a control command message, the intelligent home Internet of things system receives the control command message and obtains a secret key K of the user by identifying fingerprint information of the user, if the secret key K of the user is not obtained, the current user is regarded as an invalid user, and the message of the invalid user is fed back to the user in a short message mode to remind the user of the existence of a safety event; and encrypting and converting the key K to generate a message authentication code, transmitting the message authentication code and a control command message into corresponding intelligent home Internet of things equipment, decrypting and verifying the message authentication code by using the user key K by the intelligent home equipment, obtaining the control command message by the intelligent home equipment if the decryption and verification are successful, executing an intelligent home equipment control command sent by the user, otherwise, not executing the decryption, and feeding back the message with inconsistent authentication to the user in a short message manner to remind the user of the existence of a security event. Compared with the prior art, the intelligent home equipment is controlled in a multi-verification mode, namely the user identity and the intelligent home Internet of things are respectively verified through messages, meanwhile, the keys in the traditional encryption algorithm have high dependency, and decryption can be achieved through an exhaustion method. ,
drawings
Fig. 1 is a schematic flow chart of a security control method for an internet of things smart home device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an internet of things smart home device security control system according to an embodiment of the present invention;
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Establishing an association mapping relation between a network address and home equipment by collecting equipment information and the network address of the Internet of things intelligent home equipment; encrypting the association mapping relation by using an intelligent security model; the user inputs the control instruction of the intelligent household equipment into the intelligent household Internet of things system, the intelligent household Internet of things system verifies the control instruction of the intelligent household equipment, if the verification is successful, the control instruction of the intelligent household equipment sent by the user is executed, otherwise, the control instruction is not executed, and the message with inconsistent authentication is fed back to the user in a short message mode to remind the user of the existence of a safety event. Referring to fig. 1, a schematic diagram of a security control method for an internet of things smart home device according to an embodiment of the present invention is shown.
In this embodiment, the method for controlling the safety of the internet-of-things smart home device includes:
s1, collecting the equipment information and the network address of the Internet of things intelligent household equipment, and storing the equipment information and the network address into a database.
Firstly, the method collects equipment information and network addresses of the Internet of things intelligent household equipment, and stores the equipment information and the network addresses into a database, in a specific embodiment of the method, the intelligent household equipment mainly comprises electric household equipment, water conservancy household equipment and gas household equipment, the network addresses are response messages of an HTTP protocol of the intelligent household equipment, and the intelligent household equipment information comprises types, manufacturers and models of the intelligent household equipment;
the method comprises the following steps of collecting equipment information and network addresses of the Internet of things intelligent household equipment:
1) randomly positioning an IP address detector, mixing the detector with a plurality of subnets, and completely randomly arranging the IP addresses of the IP address space of the household equipment, thereby reducing the instantaneous load of each network and generating random sampling without deviation;
2) sending a detection packet by using an IPv4 network address, and judging whether the Internet of things network address of each household device is alive or not;
3) establishing TCP three-way handshake connection for each live internet of things network address, acquiring response messages of an HTTP (hyper text transport protocol) at ports 80, 81 and 82, storing the acquired response messages according to a JSON (Java Server pages) format, and storing the stored JSON format information into a database, wherein a main key of the JSON format is the internet of things network address, and the value is the device information corresponding to the intelligent household equipment.
And S2, cleaning the equipment information and the network address stored in the database, and establishing an association mapping relation between the network address and the household equipment by using the cleaned equipment information and the network address.
Further, the invention cleans the equipment information and the network address stored in the database, and the clear flow is as follows:
1) deleting error data of the HTTP response message, wherein the error data comprises a response message of an error state code;
2) in one embodiment of the present invention, when two internet of things devices come from the same vendor and the same product, their response data packets may be the same, and these duplicate data packets have the same information entropy value for the fingerprint of the construction networking device, so if the same MD5 values of the two response messages are the same, it is considered that their corresponding (internet of things network address, device information of the smart home device) is redundant data, thereby deleting redundant duplicate content;
3) and setting a response message structure threshold, if the DOM tree structure of the response message is larger than the response message structure threshold, considering that the current response message is from other commercial websites or servers, and deleting the current response message.
Further, for the cleaned JSON-format file, the invention establishes a mapping relation graph of network addresses and device information, and in the mapping relation graph, the nodes are marked as intelligent household device nodes and also comprise 3 nodes, wherein the gray nodes represent the types of the intelligent household devices and are mainly divided into electric household devices, water conservancy household devices and gas household devices, the blue nodes represent the network addresses of the intelligent household devices, and the red nodes represent the brands and models of the intelligent household devices.
And S3, encrypting the association mapping relation by using an intelligent security model according to the established association mapping relation.
Further, according to the established mapping relationship between the network address and the equipment information, the intelligent security model is used for carrying out encryption processing on the association mapping relationship, the intelligent security model comprises an internet of things cloud server and K encryption servers, the internet of things cloud server is responsible for issuing the association mapping relationship to the encryption servers, and the encryption servers are responsible for carrying out encryption processing on the association mapping relationship;
the process of encrypting the association mapping relation by using the intelligent security model comprises the following steps:
establishing an intelligent security model objective function, wherein the objective function is to maximize the security of the internet of things after encryption processing of the incidence mapping relation, and the objective function is as follows:
wherein:
nhthe h-th part after the division is associated with a mapping relation;
n represents the total number of the parts needing to be encrypted in the association mapping relation;
ah，mparameter indicating that the encryption server h performs the encryption algorithm m, if a is present in one embodiment of the present inventionh，mIf "0", it means that the encryption server h does not execute the encryption algorithm m, and if "a" indicates that the encryption server h does not execute the encryption algorithm m h，m1, the encryption server h executes the encryption algorithm m;
sh，mrepresenting the security of the encryption server h to execute the encryption algorithm m;
f represents the CPU rate of the cloud server;
fhrepresents the CPU rate of the encryption server h;
bh，mrepresenting the execution efficiency of the encryption server h to execute the encryption algorithm m;
by solving the intelligent security model objective function, different encryption servers adopt different encryption algorithms to encrypt the association mapping relation, and the maximization of the overall security performance of the Internet of things is ensured.
S4, the user inputs the control instruction of the intelligent household equipment into the intelligent household Internet of things system, the intelligent household Internet of things system verifies the control instruction of the intelligent household equipment, if the verification is successful, the control instruction of the intelligent household equipment sent by the user is executed, otherwise, the control instruction is not executed, and the information with inconsistent authentication is fed back to the user in a short message mode to remind the user of the existence of a safety event.
Further, the user inputs an authentication password in the intelligent home Internet of things system for confirming the identity of the user;
if the intelligent home Internet of things system passes through the authentication password input by the user, the user can control the intelligent home equipment; in a specific embodiment of the present invention, when a user controls an intelligent home device, a control command message and a message authentication code are sent to an intelligent home internet of things system, wherein a process of generating the message authentication code is as follows:
1) the intelligent home Internet of things generates a key K with n bytes for each effective user, wherein n is more than 1 and less than 256;
2) initializing arrays S and T, arranging elements in S from 0 to 255 in an ascending order, namely S [0] equals 0, and S [255] equals 255, and assigning values to the elements in the array T by using a secret key K;
3) initializing i and j to be 0, setting the circulation range of i to be 1-255, taking the value of i each time, calculating j ═ j + Si + T [ j ]), and exchanging Si and Sj;
4) setting the group number of the sub-keys as m, initializing r to be 0, circularly assigning r from 1-32 m, for each r, i is (i +1) mod256, j is (j + S [ i ]) mod256, exchanging S [ i ] and S [ j ], calculating t is (S [ i ] + S [ j ]) mod256, and assigning S [ t ] to K [ r ]; grouping the K [ r ] obtained by assignment by 32 bytes to obtain m groups of encryption sub-keys; the result of encrypting the user key K by using the encryption sub-key is the message authentication code;
when a user logs in the intelligent home Internet of things system and inputs a control command message, the intelligent home Internet of things system receives the control command message and obtains a secret key K of the user by identifying fingerprint information of the user, if the secret key K of the user is not obtained, the current user is regarded as an invalid user, and the message of the invalid user is fed back to the user in a short message mode to remind the user of the existence of a safety event;
and encrypting and converting the key K to generate a message authentication code, transmitting the message authentication code and a control command message into corresponding intelligent home Internet of things equipment, decrypting and verifying the message authentication code by using the user key K by the intelligent home equipment, obtaining the control command message by the intelligent home equipment if the decryption and verification are successful, executing an intelligent home equipment control command sent by the user, otherwise, not executing the decryption, and feeding back the message with inconsistent authentication to the user in a short message manner to remind the user of the existence of a security event.
The intelligent home Internet of things system is provided with a server and an auxiliary server, the server plays a role in selecting system encryption parameters and issuing parameters used for system operation, and in addition, when a user registers at the server, the server generates parameters for a user account and sends the parameters to intelligent home equipment through a safety channel; while the server locally retains some parameters and sends some of the parameters to the secondary server over a secure channel. When a user logs in for authentication, the auxiliary server is added to cooperate with the server to perform security authentication.
In a specific embodiment of the present invention, two servers are deployed in the same local area network, and an auxiliary server is deployed on a public network at the same time, so that the auxiliary server has a public network IP address, that is, the auxiliary server can be accessed through the internet at other places, and by setting a firewall in the local area network, only the local area network IP address of the auxiliary server is allowed to access the server through the firewall, and all other requests are rejected. By using the deployment, only the auxiliary server can access the server, and other objects cannot contact the server at all, so that the safety of the server is ensured.
The following describes embodiments of the present invention through an algorithmic experiment and tests of the inventive treatment method. The hardware test environment of the algorithm of the invention is as follows: inter (R) core (TM) i7-6700K CPU with software Matlab2018 a; the comparison method is an Internet of things intelligent household equipment safety control method based on a Bayesian network and an Internet of things intelligent household equipment safety control method based on a decision tree.
In the algorithm experiment, the data set is 10G of home equipment information data. In the experiment, the information data of the household equipment is input into the algorithm model, and the safety of the control of the intelligent household equipment is used as an evaluation index of the feasibility of the algorithm, wherein the higher the safety of the control of the intelligent household equipment is, the higher the effectiveness and the feasibility of the algorithm are.
According to the experimental result, the safety of the Internet of things intelligent household equipment safety control method based on the Bayesian network is 82.18%, the safety of the Internet of things intelligent household equipment safety control method based on the decision tree is 84.32%, and the safety of the method provided by the invention is 87.61%.
The invention further provides a safety control system of the Internet of things intelligent household equipment. Fig. 2 is a schematic diagram of an internal structure of an internet of things smart home device security control system according to an embodiment of the present invention.
In this embodiment, the internet-of-things smart home device security control system 1 at least includes a home device information obtaining device 11, a data processor 12, a home device control device 13, a communication bus 14, and a network interface 15.
The home equipment information acquiring device 11 may be a PC (Personal Computer), a terminal equipment such as a smart phone, a tablet Computer, and a mobile Computer, or may be a server.
The data processor 12 includes at least one type of readable storage medium including flash memory, hard disks, multi-media cards, card-type memory (e.g., SD or DX memory, etc.), magnetic memory, magnetic disks, optical disks, and the like. The data processor 12 may be, in some embodiments, an internal storage unit of the internet of things smart home device security control system 1, for example, a hard disk of the internet of things smart home device security control system 1. In other embodiments, the data processor 12 may also be an external storage device of the internet of things Smart home device security control system 1, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are equipped on the internet of things Smart home device security control system 1. Further, the data processor 12 may also include both an internal storage unit and an external storage device of the internet of things smart home device security control system 1. The data processor 12 may be configured to store not only application software installed in the internet of things smart home device security control system 1 and various types of data, but also temporarily store data that has been output or is to be output.
The household device control apparatus 13 may be, in some embodiments, a Central Processing Unit (CPU), a controller, a microcontroller, a microprocessor or other data Processing chip, and is used for running program codes stored in the data processor 12 or Processing data, such as household device control program instructions.
The communication bus 14 is used to enable connection communication between these components.
The network interface 15 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), and is typically used to establish a communication link between the system 1 and other electronic devices.
Optionally, the system 1 may further comprise a user interface, which may comprise a Display (Display), an input unit such as a Keyboard (Keyboard), and optionally a standard wired interface, a wireless interface. Alternatively, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, or the like. The display may also be referred to as a display screen or a display unit, and is used for displaying information processed in the internet of things smart home device security control system 1 and displaying a visual user interface.
While fig. 2 only shows the smart home device security control system 1 with components 11-15 and the internet of things, those skilled in the art will appreciate that the structure shown in fig. 1 does not constitute a limitation of the smart home device security control system 1 and may include fewer or more components than those shown, or some components may be combined, or a different arrangement of components.
In the embodiment of the apparatus 1 shown in fig. 2, the data processor 12 stores therein household device control program instructions; the steps of executing the home device control program instructions stored in the data processor 12 by the home device control apparatus 13 are the same as the implementation method of the security control method for the smart home devices in the internet of things, and are not described here.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where home device control program instructions are stored on the computer-readable storage medium, where the home device control program instructions are executable by one or more processors to implement the following operations:
collecting equipment information and a network address of the Internet of things intelligent household equipment, and storing the equipment information and the network address into a database;
cleaning the equipment information and the network address stored in the database, and establishing an association mapping relation between the network address and the household equipment by using the cleaned equipment information and the network address;
encrypting the incidence mapping relation by using an intelligent security model according to the established incidence mapping relation;
the user inputs the control instruction of the intelligent household equipment into the intelligent household Internet of things system, the intelligent household Internet of things system verifies the control instruction of the intelligent household equipment, if the verification is successful, the control instruction of the intelligent household equipment sent by the user is executed, otherwise, the control instruction is not executed, and the message with inconsistent authentication is fed back to the user in a short message mode to remind the user of the existence of a safety event.
It should be noted that the above-mentioned numbers of the embodiments of the present invention are merely for description, and do not represent the merits of the embodiments. And the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, apparatus, article, or method. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, apparatus, article, or method that includes the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The safety control method for the Internet of things intelligent household equipment is characterized by comprising the following steps:
collecting equipment information and a network address of the Internet of things intelligent household equipment, and storing the equipment information and the network address into a database;
cleaning the equipment information and the network address stored in the database, and establishing an association mapping relation between the network address and the household equipment by using the cleaned equipment information and the network address;
encrypting the incidence mapping relation by using an intelligent security model according to the established incidence mapping relation;
the user inputs the control instruction of the intelligent household equipment into the intelligent household Internet of things system, the intelligent household Internet of things system verifies the control instruction of the intelligent household equipment, if the verification is successful, the control instruction of the intelligent household equipment sent by the user is executed, otherwise, the control instruction is not executed, and the message with inconsistent authentication is fed back to the user in a short message mode to remind the user of the existence of a safety event.
2. The method for controlling the safety of the smart home devices in the internet of things according to claim 1, wherein the collecting the device information and the network address of the smart home devices in the internet of things comprises:
1) randomly positioning an IP address detector, mixing the detector with a plurality of subnets, and completely randomly arranging the IP addresses of the IP address space of the household equipment;
2) sending a detection packet by using an IPv4 network address, and judging whether the Internet of things network address of each household device is alive or not;
3) establishing TCP three-way handshake connection for each live internet of things network address, acquiring response messages of an HTTP (hyper text transport protocol) at ports 80, 81 and 82, storing the acquired response messages according to a JSON (Java Server pages) format, and storing the stored JSON format information into a database, wherein a main key of the JSON format is the internet of things network address, and the value is the device information corresponding to the intelligent household equipment.
3. The Internet of things intelligent household equipment safety control method according to claim 2, wherein the step of cleaning the equipment information and the network address stored in the database comprises the steps of:
1) deleting error data of the HTTP response message, wherein the error data comprises a response message of an error state code;
2) calculating the MD5 value of each response message by using a Hash algorithm, and if the same MD5 values of the two response messages are the same, taking the Internet of things network address corresponding to the response message and the equipment information data of the intelligent household equipment as redundant data, and deleting the redundant data;
3) and setting a response message structure threshold, if the DOM tree structure of the response message is larger than the response message structure threshold, considering that the current response message is from other commercial websites or servers, and deleting the current response message.
4. The Internet of things intelligent household equipment safety control method according to claim 3, wherein the establishing of the association mapping relationship between the network address and the household equipment by using the cleaned equipment information and the network address comprises:
and establishing a mapping relation graph of the network address and the equipment information, taking the intelligent household equipment as a mapping relation node, and setting the intelligent household equipment node, the intelligent household equipment network address node and the intelligent household equipment brand model node in the mapping relation node.
5. The Internet of things intelligent household equipment safety control method according to claim 4, wherein the encrypting the association mapping relationship by using the intelligent safety model comprises:
establishing an intelligent security model objective function, wherein the objective function is as follows:
wherein:
nhthe h-th part after the division is associated with a mapping relation;
n represents the total number of the parts needing to be encrypted in the association mapping relation;
ah，mparameter indicating that the encryption server h performs the encryption algorithm m, if a is present in one embodiment of the present inventionh，mIf "0", it means that the encryption server h does not execute the encryption algorithm m, and if "a" indicates that the encryption server h does not execute the encryption algorithm mh，m1, the encryption server h executes the encryption algorithm m;
sh，mrepresenting the security of the encryption server h to execute the encryption algorithm m;
f represents the CPU rate of the cloud server;
fhrepresents the CPU rate of the encryption server h;
bh，mindicating the efficiency of the encryption server h in executing the encryption algorithm m.
6. The Internet of things intelligent household equipment safety control method according to claim 5, wherein the verification of the intelligent household equipment control command by the intelligent household Internet of things system comprises the following steps:
when a user controls the intelligent home equipment, a control command message and a message authentication code are sent to an intelligent home Internet of things system, wherein the generation flow of the message authentication code is as follows:
1) the intelligent home Internet of things generates a key K with n bytes for each effective user, wherein n is more than 1 and less than 256;
2) initializing arrays S and T, arranging elements in S from 0 to 255 in an ascending order, namely S [0] equals 0, and S [255] equals 255, and assigning values to the elements in the array T by using a secret key K;
3) initializing i and i to be 0, setting the circulation range of i to be 1-255, taking the value of i each time, calculating j ═ j + Si + T [ j ]), and exchanging Si and Sj;
4) setting the group number of the sub-keys as m, initializing r to be 0, circularly assigning r from 1-32 m, for each r, i is (i +1) mod256, j is (j + S [ i ]) mod256, exchanging S [ i ] and S [ j ], calculating t is (S [ i ] + S [ j ]) mod256, and assigning S [ t ] to K [ r ]; grouping the K [ r ] obtained by assignment by 32 bytes to obtain m groups of encryption sub-keys; the result of encrypting the user key K by using the encryption sub-key is the message authentication code;
when a user logs in the intelligent home Internet of things system and inputs a control command message, the intelligent home Internet of things system receives the control command message and obtains a secret key K of the user by identifying fingerprint information of the user, if the secret key K of the user is not obtained, the current user is regarded as an invalid user, and the message of the invalid user is fed back to the user in a short message mode to remind the user of the existence of a safety event;
and encrypting and converting the key K to generate a message authentication code, transmitting the message authentication code and a control command message into corresponding intelligent home Internet of things equipment, decrypting and verifying the message authentication code by using the user key K by the intelligent home equipment, obtaining the control command message by the intelligent home equipment if the decryption and verification are successful, executing an intelligent home equipment control command sent by the user, otherwise, not executing the decryption, and feeding back the message with inconsistent authentication to the user in a short message manner to remind the user of the existence of a security event.
7. The utility model provides an thing networking smart home equipment safety control system which characterized in that, the system includes:
the household equipment information acquisition device is used for collecting equipment information and network addresses of the intelligent household equipment of the Internet of things and storing the equipment information and the network addresses into the database;
the data processor is used for cleaning the equipment information and the network address stored in the database and establishing an association mapping relation between the network address and the household equipment by using the cleaned equipment information and the network address;
and the household equipment control device is used for encrypting the incidence mapping relation by using the intelligent security model, inputting the control command of the intelligent household equipment into the intelligent household Internet of things system, verifying the control command of the intelligent household equipment by the intelligent household Internet of things system, executing the control command of the intelligent household equipment sent by the user if the verification is successful, otherwise, not executing the verification, and feeding back the message with inconsistent authentication to the user in a short message mode to remind the user of the existence of a security event.
8. A computer-readable storage medium, wherein home device control program instructions are stored on the computer-readable storage medium, and the home device control program instructions can be executed by one or more processors to implement the steps of the implementation method for security control of the internet of things smart home device as described above.
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