WO2019015041A1

WO2019015041A1 - Time division encryption method and device for data of internet of things repeater

Info

Publication number: WO2019015041A1
Application number: PCT/CN2017/100789
Authority: WO
Inventors: 杜光东
Original assignee: 深圳市盛路物联通讯技术有限公司
Priority date: 2017-07-19
Filing date: 2017-09-06
Publication date: 2019-01-24
Also published as: CN107370735A

Abstract

Disclosed in the present application are a time division encryption method and device for data of Internet of Things repeater. The method comprises the following steps: the Internet of Things repeater receiving a data packet sent by an Internet of Things terminal; the Internet of Things repeater extracting a sending time of the data packet, determining a working time period of the Internet of Things terminal according to the sending time, querying, according to the working time period, a first encryption unit corresponding to the working time period from a preconfigured mapping table between working time periods and encryption units; the Internet of Things repeater invoking the first encryption unit to encrypt the data packet; and the Internet of Things repeater sending the encrypted data packet and the sending time carried in the load of a frame to an Internet of Things access point. The technical solution provided by the present invention has the advantages of being high secure and good user experience.

Description

Time-phase encryption method and device for Internet of Things repeater data

The present invention claims the prior application priority of the application No. 201710588676.0, entitled "A Method and Apparatus for Period-Time Encryption of Internet of Things Repeater Data", filed on July 19, 2017, the content of which is incorporated herein by reference. The way is incorporated into this text.

Technical field

The present application relates to the field of communications, and in particular, to a method and apparatus for time-phase encryption of Internet of Things relay data.

Background technique

The Internet of Things is an important part of the new generation of information technology, and an important stage of development in the era of "informatization." Its English name is: "Internet of things (IoT)". As the name suggests, the Internet of Things is the Internet that connects things. This has two meanings: First, the core and foundation of the Internet of Things is still the Internet, which is an extended and extended network based on the Internet; Second, its client extends and extends to any item and item for information. Exchange and communication, that is, things and things. The Internet of Things is widely used in the convergence of networks through communication-aware technologies such as intelligent sensing, identification technology and pervasive computing. It is also called the third wave of the development of the world information industry after computers and the Internet. The Internet of Things is the application expansion of the Internet. It is not so much that the Internet of Things is a network, but the Internet of Things is a business and application. Therefore, application innovation is the core of the development of the Internet of Things. Innovation 2.0 with user experience as the core is the soul of the development of the Internet of Things.

The Internet of Things solves the interconnection between objects and the exchange of data between objects. The existing Internet of Things is connected to the Internet based on IoT access points (APs). There are multiple repeaters under the Internet of Things (AP). After receiving the corresponding data, the repeater does not encrypt the data. This is easy to leak the IoT device, resulting in leakage of user privacy data and low user experience. .

Summary of the invention

The application provides a time-phased encryption method for Internet of Things relay data. It can improve the security of IoT data and improve the user experience.

In a first aspect, a method for time-phase encryption of Internet of Things relay data is provided, the method comprising the following steps:

The Internet of Things relay receives a data packet sent by the Internet of Things terminal;

The IoT repeater extracts a sending time of the data packet, determines a working period of the IOT terminal in the working period according to the sending time, and maps with an encryption unit according to the working period of the working period in a pre-configured working period Querying, in the table, the first encryption unit corresponding to the working period;

The Internet of Things repeater invokes the first encryption unit to perform encryption processing on the data packet;

The Internet of Things repeater transmits the encrypted data packet and the transmission time to the IoT access point within the payload of the frame.

Optionally, the method may further include: before the IoT access point sends the encrypted data packet to the gateway:

If the first encryption unit fails to encrypt the data packet, the alternate encryption unit of the first encryption unit is invoked to encrypt the data packet.

Optionally, the requesting, by the IoT access point, the first encryption unit to perform encryption processing on the data packet includes:

And the IoT repeater acquires a signal modulation manner of the data packet sent by the Internet of Things terminal, determines a secret key according to the signal modulation manner, and invokes the first encryption unit to encrypt the data packet by using the secret key. Handle working hours.

Optionally, the determining the secret key according to the modulation manner specifically includes:

Parsing the data packet to obtain a signal modulation mode of the data packet, and querying a key working period corresponding to the signal modulation mode from the mapping manner of the modulation mode and the key.

Optionally, the determining the secret key according to the modulation manner specifically includes: if the data packet of the data packet is parsed by using the quadrature phase shift keying QPSK, the energy of the QPSK is obtained. A phase number, which is a value obtained by sequentially sorting the phase numbers as the secret key.

In a second aspect, an IoT repeater device is provided, the device comprising:

a receiving unit, configured to receive a data packet sent by the Internet of Things terminal;

a processing unit, configured to extract a sending time of the data packet, and determine the sending time according to the sending time a working period of the IoT terminal, the first encryption unit corresponding to the working period is queried in the pre-configured working period and the encryption unit mapping table according to the working period; and the first encryption unit is called to the data The packet is encrypted;

And a sending unit, configured to send the encrypted data packet and the sending time to the IoT access point within the payload of the frame.

Optionally, the processing unit is configured to: when the first encryption unit fails to encrypt the data packet, invoke the alternate encryption unit of the first encryption unit to encrypt the data packet.

Optionally, the processing unit is configured to acquire a signal modulation manner of the data packet sent by the Internet of Things terminal, determine a secret key according to the signal modulation manner, and invoke the first encryption unit to use the secret key pair The data packet is subjected to an encryption processing working period.

Optionally, the working period processing unit is configured to parse the data packet to obtain a signal modulation manner of the data packet, and query, according to the mapping manner between the modulation mode and the key, the signal modulation mode. Secret key.

Optionally, the processing unit is further configured to: if the signal modulation mode of the data packet is obtained by parsing the data packet is quadrature phase shift keying QPSK, acquiring a phase number with energy in the QPSK, The phase number is sorted in order to obtain the value as the secret key. In a third aspect, a computer storage medium is provided, wherein the computer storage medium is storable with a program, the program comprising a portion of the time-division encryption method for receiving data by any one of the Internet of Things repeaters described in the first aspect. Or all steps.

In a fourth aspect, a repeater device is provided, the repeater device comprising: one or more processors, a memory, a bus system, a transceiver, and one or more programs, the processor, the memory, and The transceiver is coupled by the bus system; wherein the one or more programs are stored in the memory, the one or more programs including instructions that, when executed by the access point, cause the repeater to perform the In one aspect and in the first aspect, it is entirely possible to design any of the methods provided.

After the Internet of Things terminal of the technical solution provided by the present invention sends the data packet to the repeater, the repeater queries the encryption unit corresponding to the working period according to the time of the Internet of Things terminal, and encrypts the data through the encryption unit. In terms of networking, the IoT terminal does not need to configure encryption. All encryption settings are in the repeater. This method can encrypt the data, protect the user's privacy and improve the user experience.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the present application, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic diagram of a network architecture;

2 is a flow chart of transmission of an IoT terminal transmitting a data packet to a repeater;

3 is a flow chart of a time-phased encryption method for IoT repeater data

4 is a schematic diagram of a technical scenario provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a mapping relationship provided by an embodiment of the present application; FIG.

6 is a schematic flowchart of a time-phased encryption method for data network relay data provided by another embodiment of the present application;

7 is a schematic structural diagram of an Internet of Things repeater device provided by the present application;

FIG. 8 is a schematic structural diagram of hardware of an Internet of Things repeater provided by the present application.

Detailed ways

Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as a process or method depicted as a flowchart. Although the flowcharts describe various operations as a sequential process, many of the operations can be implemented in parallel, concurrently or concurrently. In addition, the order of operations can be rearranged. The process may be terminated when its operation is completed, but may also have additional steps not included in the figures. The processing may correspond to methods, functions, procedures, subroutines, subroutines, and the like.

By "computer device", also referred to as "computer" in the context, is meant an intelligent electronic device that can perform predetermined processing, such as numerical calculations and/or logical calculations, by running a predetermined program or instruction, which can include a processor and a memory that is executed by the processor to execute a surviving instruction pre-stored in the memory The predetermined processing is performed by a hardware such as an ASIC, an FPGA, a DSP, or the like, or a combination of the two. Computer devices include, but are not limited to, servers, personal computers, notebook computers, tablets, smart phones, and the like.

The methods discussed below, some of which are illustrated by flowcharts, can be implemented in hardware, software, firmware, middleware, microcode, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware or microcode, the program code or code segments to carry out the necessary tasks can be stored in a machine or computer readable medium, such as a storage medium. The processor(s) can perform the necessary tasks.

The specific structural and functional details disclosed are merely representative and are for the purpose of describing exemplary embodiments of the invention. The present invention may, however, be embodied in many alternative forms and should not be construed as being limited only to the embodiments set forth herein.

It should be understood that although the terms "first," "second," etc. may be used herein to describe the various elements, these elements should not be limited by these terms. These terms are used only to distinguish one unit from another. For example, a first unit could be termed a second unit, and similarly a second unit could be termed a first unit, without departing from the scope of the exemplary embodiments. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing the particular embodiments, The singular forms "a", "an", It is also to be understood that the terms "comprising" and """ Other features, integers, steps, operations, units, components, and/or combinations thereof.

It should also be noted that in some alternative implementations, the functions/acts noted may occur in a different order than that illustrated in the drawings. For example, two figures shown in succession may in fact be executed substantially concurrently or sometimes in the reverse order, depending on the function/acts involved.

The invention is further described in detail below with reference to the accompanying drawings.

According to an aspect of the present invention, a data transmitting method of an Internet of Things repeater is provided. The method is applied to the object network shown in FIG. 1. As shown in FIG. 1, the object network includes: an Internet of Things terminal 10, an Internet of Things access point AP20, a gateway, and a repeater 40. The networked terminal may have different manifestations according to different situations. For example, the Internet of Things terminal may specifically be: a mobile phone, a tablet computer, a computer, etc., of course, it may also include other devices with networking functions, such as a smart TV, a smart air conditioner. The smart water bottle or some Internet of Things terminal device, the Internet of Things terminal 10 is connected to the repeater 40 in a wireless manner, and the repeater 40 is connected to the AP. The connection manner may be wireless or limited. The wireless mode includes but is not limited to: Bluetooth, WIFI, etc., and the foregoing gateway may specifically be a mobile base station, a mobile relay station, a switch, and the like. In Fig. 1, the wired mode is taken as an example, and for convenience of representation, only one solid line is shown here.

The above-mentioned gateway 30 may be a personal computer (PC) according to the size of the Internet of Things. In practice, it may be a plurality of PCs, servers, or server groups. The specific embodiment of the present invention is not limited. The specific manifestation of the above gateway 30.

The repeater 40 may be a plurality of devices according to different scenarios, such as a mobile phone, a smart watch, and the like.

Referring to FIG. 2, FIG. 2 is a transmission flow chart of data transmission of an Internet of Things repeater. As shown in FIG. 2, the process includes:

Step S201, the Internet of Things terminal 10 transmits the data packet to be transmitted to the relay station 40 by wireless;

Step S202: The relay station forwards the data packet to the Internet of Things access point;

Step S203: The Internet of Things access point transmits the data packet to the gateway.

Through the above-mentioned FIG. 1 and FIG. 2, in the actual transmission of the data packet, if the AP20 and the repeater are leaked, the data packet is easily leaked because the data packet is not subjected to the corresponding encryption processing. , it is prone to security problems.

Referring to FIG. 3, FIG. 3 is a method for time-phase encryption of data of an Internet of Things repeater according to the present invention. The method is implemented in a network architecture as shown in FIG. 4, as shown in FIG. A plurality of IoT terminals can be connected, and the repeater can be a mobile phone that opens a hot spot, a personal computer that provides a wireless connection, a forwarding device, and the like. The method is as shown in FIG. 3, and includes the following steps:

Step S301: The Internet of Things terminal sends a data packet to the Internet of Things access point 40.

The object-to-network terminal in the above step S301 may specifically be: a mobile phone, a tablet computer, a computer, etc., of course, it may also include other devices with networking functions, such as a smart TV, a smart air conditioner, a smart water bottle, a smart light, a smart switch, or Some IoT smart devices.

In the foregoing step S301, the manner in which the Internet of Things terminal sends a data packet to the Internet of Things terminal may be to send a data packet by using a wireless connection, including but not limited to: Bluetooth, Wireless Fidelity (WIFI) or Zigbee And other wireless methods, wherein the above WIFI needs to comply with the IEEE802.11b standard.

It should be noted that the Internet of Things and IoT terminals here are only for wireless IoT terminals, because for the Internet of Things, the number of devices accessed by them is large. For IoT terminals, if they are connected by wire, the first thing The number of accesses of the networked terminal is limited, and the wired connection is used for the home, which is unimaginable for the wiring of the home user, and the cost of the cable is also very high, so in the technical solution of the present invention The connection between the IoT terminal and the IoT terminal is limited to wireless connection.

Step S302: The IoT repeater extracts the sending time of the data packet, determines the working time period of the Internet of Things terminal in the working period according to the sending time, and queries the working time period in the pre-configured working time period and the encryption unit mapping table. The first encryption unit corresponding to the working period.

The type of the Internet of Things terminal in the above step S302 can be set according to the situation of the device. For example, the IoT terminal can specifically include: a smart electric light, a smart television, a smart cleaning device, a smart sleep device, an intelligent monitoring device, etc. The form of performance can be various, for example, for a smart electric lamp, including but not limited to: a smart table lamp, a smart ceiling lamp, a smart wall lamp, etc., for example, for a smart TV, it can be a Samsung smart TV, of course It can also be a Sharp smart TV. For example, for a smart cleaning device, it can be a smart sweeping robot. Of course, it can also include a smart vacuum cleaner, a smart garbage processor, etc., for example, for a smart sleep device, For the smart mattress, the smart sofa, and the like, for example, for the smart monitoring device, it may be an intelligent sphygmomanometer, a smart thermometer, etc., and the specific form, number, or type of the above-mentioned Internet of Things terminal is not limited.

The working period and the encryption unit mapping table in the above steps are as shown in FIG. 5, and the foregoing mapping may be a one-to-one mapping, or may be a one-to-many mapping or the like.

The encryption unit in the above step S302 may specifically be a hardware encryption unit provided in the Internet of Things (Relay), which includes an encryption algorithm preset by the manufacturer. Of course, in an actual application, the encryption unit may also be a software configured in the AP. The encryption unit, the present invention does not limit the specific expression of the above encryption unit.

The foregoing encryption algorithm includes, but is not limited to, an encryption algorithm such as 3DES, MD5 or RSA, and the present invention is not limited to a specific encryption algorithm.

Step S303: The Internet of Things repeater invokes the first encryption unit to perform encryption processing on the data packet.

The implementation method of the foregoing step S303 may specifically be:

For example, the first encryption unit is a 3DES encryption unit, and the Internet of Things relay invokes the 3DES encryption unit to perform 3DES encryption processing on the data packet. For example, the first encryption unit is a RAS encryption unit, and the Internet of Things relay invokes the RAS encryption unit to perform RAS encryption processing on the data packet. For example, if the first encryption unit is an MD5 encryption unit, the Internet of Things relay invokes the MD5 encryption unit to perform MD5 encryption processing on the data packet.

The above encryption algorithms include but are not limited to: triple data encryption algorithm block cipher (English: riple Data Encryption Algorithm (3DES), Message Digest Algorithm (MD5) or RSA (Rivest, Shamir, Adleman) encryption algorithms, the present invention is not limited to a specific encryption algorithm. For example, 3DES is a generic term for triple-data encryption algorithm block ciphers. It is equivalent to applying three DES encryption algorithms to each data block. Due to the increased computing power of the computer, the key length of the original DES password becomes vulnerable to brute force; 3DES is designed to provide a relatively simple method to avoid similar attacks by increasing the key length of DES.

The implementation method of the foregoing step S303 may specifically be:

The IoT repeater invokes the first encryption unit to perform encryption processing on the data packet. If the encryption is successful, the subsequent step S304 is performed. If the encryption is unsuccessful, the standby encryption unit of the first encryption unit is called to encrypt the data packet. The alternate encryption unit identifier is added to the header extension field of the encrypted packet.

Step S304: The Internet of Things repeater sends the encrypted data packet and the transmission time to the IoT access point in the payload of the frame.

The implementation method of the above step S304 can be:

The IoT repeater carries the encrypted data packet in the payload of the frame, and then carries the transmission time in the payload. The purpose of carrying the transmission time is to facilitate subsequent devices to learn the selected encryption unit, because For the device, the sending time is changed at any time. If the sending time is not carried in the frame, the subsequent devices cannot know the encryption unit used by the device, and the decryption cannot be performed.

According to the method provided in FIG. 3, after the Internet of Things terminal sends the data packet to the Internet of Things repeater, the IoT repeater queries the encryption unit corresponding to the working period according to the working period of the IoT terminal during the working period, and the encryption unit The unit encrypts the data. For the Internet of Things, the IoT terminal does not need to configure encryption. All encryption settings are in the IoT repeater. This method can effectively reduce the cost of the IoT terminal and the entire Internet of Things. In this case, because an IoT repeater can connect to a large number of IoT terminals, only the IoT repeater configuration can reduce the overall cost of the Internet of Things. In addition, for IoT repeaters, the calculation is The ability is generally stronger than the IoT terminal, so it can reduce the delay of data transmission when running the encryption unit, reduce the delay of the network, and improve the user experience.

Referring to FIG. 6, FIG. 6 is a time-phase encryption method for data of an Internet of Things repeater according to the present invention. The method is implemented in the network architecture as shown in FIG. 4, as shown in FIG. 4, an IoT repeater can be connected to multiple IoT terminals, and the IoT repeater can specifically provide a mobile phone with hotspots. A device such as a wirelessly connected personal computer, as shown in FIG. 6, includes the following steps:

Step S601: The Internet of Things terminal sends a data packet to the Internet of Things relay.

The IoT terminal in the above step S601 may specifically be: a mobile phone, a tablet computer, a computer, etc., of course, it may also include other devices with networking functions, such as a smart TV, a smart air conditioner, a smart water bottle, a smart light, a smart switch, or Some IoT smart devices.

In the foregoing step S601, the manner in which the Internet of Things terminal sends a data packet to the Internet of Things relay may be a method of sending a data packet by using a wireless connection, including but not limited to: Bluetooth, Wireless Fidelity (WIFI) Or a wireless method such as Zigbee, wherein the above WIFI needs to comply with the IEEE802.11b standard.

It should be noted that the Internet of Things and IoT repeaters here are only for wireless IoT repeaters, because for the Internet of Things, the number of devices it accesses is large, for IoT repeaters, if With wired connections, the number of IoT repeaters will be limited first, and for the home, wired connections are unimaginable for home users' wiring, and the cost of this cable is also very high. Therefore, the connection between the Internet of Things terminal and the Internet of Things relay in the technical solution of the present invention is limited to a wireless connection.

Step S602: The IoT repeater extracts a sending time of the data packet, determines a working time period of the Internet of Things terminal in the working period according to the sending time, and queries the working time period in the pre-configured working time period and the encryption unit mapping table according to the working time period. The first encryption unit corresponding to the working period.

The type of the Internet of Things terminal in the above step S602 can be set according to the situation of the device. For example, the IoT terminal can include: a smart light, a smart TV, a smart cleaning device, a smart sleep device, an intelligent monitoring device, etc. The form of performance can be various, for example, for a smart electric lamp, including but not limited to: a smart table lamp, a smart ceiling lamp, a smart wall lamp, etc., for example, for a smart TV, it can be a Samsung smart TV, of course It can also be a Sharp smart TV. For example, for a smart cleaning device, it can be a smart sweeping robot. Of course, it can also include a smart vacuum cleaner, a smart garbage processor, etc., for example, for a smart sleep device, For: smart mattresses, smart sofas, etc., for example, for smart monitoring devices, It may be an intelligent sphygmomanometer, a smart thermometer or the like, and the present invention does not limit the specific form, number or kind of the above-mentioned Internet of Things terminal.

The cryptographic unit in the above step S602 may specifically be a hardware cryptographic unit disposed in the Internet of Things repeater, and includes an encryption algorithm preset by the manufacturer. Of course, in an actual application, the cryptographic unit may also be configured in the Internet of Things relay. The software encryption unit in the device does not limit the specific expression of the above encryption unit.

Step S603: The IoT repeater acquires a signal modulation manner of the data packet sent by the Internet of Things terminal, determines a secret key according to the signal modulation manner, and invokes the first encryption unit to use the secret key to perform the data packet. Encryption processing.

Optionally, the implementation manner of the foregoing step S603 may be specifically:

The IoT repeater obtains a signal modulation mode of the IOT terminal transmitting the data packet, and queries a key corresponding to the signal modulation mode from the modulation mode and the key mapping table, and invokes the first encryption unit to use the secret key. Encrypting the data packet.

For example, if the acquired modulation mode is Binary Phase Shift Keying (BPSK), the first key is used, for example, the acquired modulation mode is Quadrature Phase Shift Keying (Quadrature Phase Shift Keying). , QPSK), the second key is used. The purpose of the modulation mode of the signal here is that, for the repeater, the modulation mode of the signal is constant, so that the subsequent device can acquire the modulation mode of the signal transmission of the Internet of Things terminal, so it can be modulated. Different ways to choose different keys to further improve security.

Optionally, the implementation method of the foregoing step S603 may specifically be:

If the signal modulation mode of the data packet is parsed into quadrature phase shift keying QPSK, the phase number with energy in the QPSK is obtained, and the value obtained by sequentially sorting the phase number is used as the secret. key. The phase number with energy refers to the energy of the QPSK subcarrier, that is, the subcarrier transmits the number 1, and the corresponding phase number may specifically be the phase number of the phase, for example, the first phase row number is 1, the second The phase number is 2, and the 15th phase has a row number of 15. The way to get the secret key increases the difficulty of the key being deciphered, further improving security.

The implementation method of the foregoing step S603 may specifically be:

For details about the encryption process, refer to related descriptions of 3DES, RSA, and MD5, and details are not described here.

The implementation method of the foregoing step S603 may specifically be:

Step S604: The Internet of Things repeater transmits the encrypted data packet and the transmission time to the IoT access point in the payload of the frame.

The implementation method of the above step S604 can be:

The encrypted data packet is sent to the gateway in another way. For example, the IoT terminal is connected to the Internet of Things relay through WIFI, and the IoT repeater can send the data packet to the gateway through the wire, of course, in practice. In the application, the Internet of Things repeater can also send the encrypted data packet to the gateway through Long Term Evolution (LTE). Of course, the above LTE or limited mode and the manner in which the Internet of Things terminal is connected to the Internet of Things through WIFI are merely for illustrative purposes, and the present invention is not limited to the specific manner of the above connection.

The technical solution adopted by the invention has the advantage of high safety.

Optionally, after the step S604, the foregoing method may further include:

The IoT access point invokes the first encryption unit to perform unsuccessful encryption, and the IoT access point invokes a backup encryption unit of the first encryption unit to encrypt the data packet, and the standby encryption unit identifier is added. The header extension field of the packet after encryption processing.

Referring to FIG. 7, FIG. 7 is an Internet of Things repeater device 700, the device comprising:

The receiving unit 701 is configured to receive a data packet sent by the Internet of Things terminal;

The processing unit 702 is configured to extract a sending time of the data packet, determine a working period of the Internet of Things terminal in the working period according to the sending time, and query the pre-configured working period and the encryption unit mapping table according to the working period. And a first encryption unit corresponding to the working period; the access point invokes the first encryption unit to perform encryption processing on the data packet;

The sending unit 703 is configured to send the encrypted data packet and the sending time to the IoT access point in the payload of the frame.

Optionally, the processing unit 702 is specifically configured to: when the first encryption unit fails to encrypt the data packet, invoke the alternate encryption unit of the first encryption unit to encrypt the data packet.

Optionally, the processing unit 702 is configured to obtain a signal modulation manner of the data packet sent by the Internet of Things terminal, determine a secret key according to the signal modulation manner, and invoke the first encryption unit to use the secret key pair. The packet is encrypted.

Optionally, the processing unit 702 is configured to parse the data packet to obtain a signal modulation manner of the data packet, and query, from the mapping manner of the modulation mode and the key, a secret key corresponding to the signal modulation mode.

Optionally, the processing unit 702 is further configured to: when parsing the data packet to obtain a signal modulation manner of the data packet, which is a quadrature phase shift keying QPSK, obtain a phase number with energy in the QPSK, and obtain the phase The value obtained by sequentially sorting the numbers is used as the key. The computer storage medium may be stored in the computer storage medium, and the program includes any one of the above-mentioned first aspects. Some or all of the steps of the time-phase encryption method in which the Internet of Things repeater receives data.

Referring to FIG. 8, FIG. 8 is an IoT repeater 800 provided by the present invention. The Internet of Things relay can be a node deployed in an Internet system. The Internet system can also include: an Internet of Things terminal and an Internet of Things connection. Incoming point, IoT repeater and gateway, the Internet of Things repeater 800 includes but is not limited to: a computer, a server, etc., as shown in FIG. 8, the Internet of Things repeater 800 includes: a processor 801, a memory 802 Transceiver 803 and bus 804. The transceiver 803 is configured to transmit and receive data with an external device (eg, other devices in the interconnection system, including but not limited to: a repeater, a core network device, etc.). The number of processors 801 in the Internet of Things repeater 800 can be one or more. In some embodiments of the present application, the processor 801, the memory 802, and the transceiver 803 may be connected by a bus system or other means. Pick up. For the meanings and examples of the terms involved in this embodiment, reference may be made to the corresponding embodiment of FIG. 3 or FIG. 6 , and details are not described herein again.

The program code can be stored in the memory 802. The processor 801 is configured to call program code stored in the memory 802 for performing the following operations:

The transceiver 803 is configured to receive a data packet sent by the Internet of Things terminal;

The processor 801 is configured to query the first encryption unit corresponding to the working period in the encryption unit mapping table according to the working period, and invoke the first encryption unit to encrypt the data packet. deal with.

The transceiver 803 is further configured to send the encrypted data packet and the sending time to the IoT access point within the payload of the frame.

Optionally, the processor 801 and the transceiver 803 are further configured to perform the refinement and the steps of the steps and steps in the embodiment shown in FIG. 3 or FIG. 6.

It should be noted that the processor 801 herein may be a processing component or a general term of multiple processing components. For example, the processing component may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application. For example, one or more digital singal processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs).

The memory 803 may be a storage device or a collective name of a plurality of storage elements, and is used to store executable program code or parameters, data, and the like required for the application running device to operate. And the memory 903 may include random access memory (RAM), and may also include non-volatile memory such as a magnetic disk memory, a flash memory, or the like.

The bus 804 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus.

The user equipment may also include input and output devices coupled to bus 804 for connection to other portions, such as processor 801, via a bus. The input and output device can provide an input interface for the operator. Therefore, the operator can select the control item through the input interface, and can also be other interfaces through which other devices can be externally connected.

It should be noted that, for the foregoing various method embodiments, for the sake of brevity, they are all described as a series of action combinations, but those skilled in the art should understand that the present application is not limited by the described action sequence. Because some steps may be performed in other orders or concurrently in accordance with the present application. In the following, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not described in detail in a certain embodiment can be referred to the related descriptions of other embodiments.

A person skilled in the art may understand that all or part of the various steps of the foregoing embodiments may be performed by a program to instruct related hardware. The program may be stored in a computer readable storage medium, and the storage medium may include: Flash disk, read-only memory (English: Read-Only Memory, referred to as: ROM), random accessor (English: Random Access Memory, referred to as: RAM), disk or optical disk.

The content downloading method and the related device and system provided by the embodiments of the present application are described in detail. The principles and implementation manners of the present application are described in the specific examples. The description of the above embodiments is only used to help understand the present application. The method of application and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be understood. To limit the application.

Claims

A time-phased encryption method for IoT relay data, characterized in that the method comprises the following steps:

The Internet of Things relay receives a data packet sent by the Internet of Things terminal;

And the IoT repeater extracts a sending time of the data packet, and determines a working period of the IOT terminal in the working period according to the sending time, according to the working period in a pre-configured working period and an encryption unit mapping table. Querying a first encryption unit corresponding to the working period;

The Internet of Things repeater invokes the first encryption unit to perform encryption processing on the data packet;

The Internet of Things repeater transmits the encrypted data packet and the transmission time to the IoT access point within the payload of the frame.
The method according to claim 1, wherein the method may further include: before the IoT repeater sends the encrypted data packet to the gateway:

If the first encryption unit fails to encrypt the data packet, the alternate encryption unit of the first encryption unit is invoked to encrypt the data packet.
The method according to claim 1, wherein the invoking the first encryption unit to perform the encryption processing on the data packet comprises:

And the IoT repeater acquires a signal modulation manner of the data packet sent by the Internet of Things terminal, determines a secret key according to the signal modulation manner, and invokes the first encryption unit to encrypt the data packet by using the secret key. deal with.
The method according to claim 3, wherein the determining the secret key according to the modulation manner comprises:

Parsing the data packet to obtain a signal modulation mode of the data packet, and querying a key corresponding to the signal modulation mode from the mapping table of the modulation mode and the key.
The method according to claim 3, wherein the determining the secret key according to the modulation manner comprises:

If the signal modulation mode of the data packet is parsed into quadrature phase shift keying QPSK, the phase number with energy in the QPSK is obtained, and the value obtained by sequentially sorting the phase number is used as the secret. key.
An Internet of Things repeater device, characterized in that the device comprises:

a receiving unit, configured to receive a data packet sent by the Internet of Things terminal;

a processing unit, configured to extract a sending time of the data packet, determine a working time period of the Internet of Things terminal in the working period according to the sending time, and query the working time period in the pre-configured working time period and the encryption unit mapping table according to the working time period a first encryption unit corresponding to the working period; invoking the first encryption unit to perform encryption processing on the data packet;

And a sending unit, configured to send the encrypted data packet and the sending time to the IoT access point within the payload of the frame.
The apparatus according to claim 6, wherein the processing unit is configured to: when the first encryption unit fails to encrypt the data packet, call the alternate encryption unit of the first encryption unit to the data packet Encryption processing.
The apparatus according to claim 6, wherein the processing unit is configured to acquire a signal modulation mode for transmitting the data packet by the Internet of Things terminal, determine a secret key according to the signal modulation manner, and invoke the first The encryption unit performs the encryption processing working period on the data packet by using the secret key.
The apparatus according to claim 8, wherein the processing unit is configured to parse the data packet to obtain a signal modulation manner of the data packet, and query from the mapping table of the modulation mode and the key The key corresponding to the signal modulation mode.
The apparatus according to claim 8, wherein the processing unit is configured to obtain the QPSK by using a quadrature phase shift keying QPSK, such as a signal modulation method for parsing the data packet to obtain the data packet. A phase number having energy, and a value obtained by sequentially sorting the phase numbers as the secret key.
A computer readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method of any of claims 1-5.
A computer program product, comprising: a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform any of claims 1-5 The method described.