WO2018072592A1 - 一种智能设备接入无线网络的方法和系统 - Google Patents

一种智能设备接入无线网络的方法和系统 Download PDF

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Publication number
WO2018072592A1
WO2018072592A1 PCT/CN2017/102700 CN2017102700W WO2018072592A1 WO 2018072592 A1 WO2018072592 A1 WO 2018072592A1 CN 2017102700 W CN2017102700 W CN 2017102700W WO 2018072592 A1 WO2018072592 A1 WO 2018072592A1
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Prior art keywords
smart device
wireless network
temporary
data packet
key
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PCT/CN2017/102700
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English (en)
French (fr)
Inventor
麦炎全
王文攀
邓迅升
陈博
陈小雨
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深圳市晟碟半导体有限公司
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Application filed by 深圳市晟碟半导体有限公司 filed Critical 深圳市晟碟半导体有限公司
Priority to EP17862390.6A priority Critical patent/EP3481090A4/en
Priority to US16/315,808 priority patent/US20190306714A1/en
Publication of WO2018072592A1 publication Critical patent/WO2018072592A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2807—Exchanging configuration information on appliance services in a home automation network
    • H04L12/2809—Exchanging configuration information on appliance services in a home automation network indicating that an appliance service is present in a home automation network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/1141—One-way transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/116—Visible light communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2807—Exchanging configuration information on appliance services in a home automation network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2807—Exchanging configuration information on appliance services in a home automation network
    • H04L12/2814—Exchanging control software or macros for controlling appliance services in a home automation network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/18—Network architectures or network communication protocols for network security using different networks or channels, e.g. using out of band channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H04W12/041—Key generation or derivation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/50—Secure pairing of devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/14—Interfaces between hierarchically different network devices between access point controllers and backbone network device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L2012/284—Home automation networks characterised by the type of medium used
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L2012/2847—Home automation networks characterised by the type of home appliance used
    • H04L2012/285—Generic home appliances, e.g. refrigerators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and system for an intelligent device to access a wireless network.
  • a unique key or the same key is usually set for each smart device in the production process, and is stored in the smart device; after the user purchases the product, the key is obtained and the secret is obtained.
  • the key is input to the mobile phone or the remote controller for pairing.
  • the smart device can establish a secure link with the remote controller or the mobile phone, that is, after the pairing operation is completed by using the initial temporary key, the smart device and the remote control
  • the long-term key is agreed between the devices, and the encryption of the communication is performed by the long-term key for subsequent remote control. This process is often referred to as long-term key distribution (LTK).
  • an object of the present invention is to provide a method and system for an intelligent device to access a wireless network, so as to improve the confidentiality of the smart device when accessing the wireless network.
  • a method for a smart device to access a wireless network includes the following steps:
  • the smart device generates a temporary data packet including a temporary key, and the light emitting component transmits the temporary data packet to the controller by generating a flicker;
  • the controller detects the flashing light signal sent by the smart device through its own photosensitive device, and parses the temporary data packet; the controller encrypts the network information of the wireless network by using the temporary key in the temporary data packet, and passes the The wireless network sends the encrypted network information to the smart device;
  • the smart device decrypts the network information to obtain the network information; and the network information is calculated to obtain a long-term key, and is added to the wireless network;
  • the step A specifically includes the following steps:
  • the smart device generates a piece of verification data and a temporary data packet including a temporary key; or the smart device generates a temporary data packet including the verification data and the temporary key;
  • the smart device sends its own device address and the verification data through the wireless network; at the same time, its light-emitting component blinks at a frequency that is invisible to the human eye, and the temporary data packet is transmitted through the blinking of light.
  • the temporary data packet further includes a synchronization word and a device address of the smart device.
  • the step B includes: the controller receiving the verification data through a wireless network, and sensing the blinking of the smart device by using the photosensitive device thereof, and detecting the synchronization After the word, receive the subsequent device address and a temporary key; sending, by the wireless network, a data packet to the smart device corresponding to the device address, where the data packet includes the authentication data encrypted by the temporary key and the ciphertext of the network information of the wireless network.
  • the step C specifically includes: the smart device receives a data packet sent by the controller, and decrypts the data packet by using a temporary key, and only obtains the decryption. After the data is verified, the decrypted network information is saved; the network information is calculated according to a predetermined algorithm to obtain a long-term key, and is added to the wireless network where the controller is located, through the long-term key and the wireless network. The device in the communication.
  • a system for a smart device to access a wireless network comprising:
  • the smart device is configured to generate a temporary data packet including a temporary key, and the light emitting component transmits the temporary data packet to the controller by generating a flicker; after receiving the network information sent by the controller, the network information is Decrypting is performed to obtain the network information; the network information is calculated to obtain a long-term key, and is added to the wireless network.
  • a controller configured to detect a flashing light signal sent by the smart device through its own photosensitive device, and parse the temporary data packet; encrypt the network information of the wireless network by using a temporary key in the temporary data packet, and The encrypted network information is sent to the smart device.
  • the temporary data packet further includes a synchronization word and a device address of the smart device.
  • the smart device accesses a wireless network
  • the smart device includes:
  • a data generation module for generating a piece of verification data and a temporary key Temporary data packet; or, generate a temporary data packet containing the authentication data and the temporary key;
  • a first communication module configured to broadcast a device address of the smart device and the verification data
  • the controller includes:
  • a second communication module configured to receive the verification data; after receiving the device address and the temporary key of the smart device, the photosensitive device sends a data packet to the smart device corresponding to the device address, where the data packet includes using a temporary key to encrypt The ciphertext of the verification data and the network information of the wireless network;
  • the photosensitive device is configured to sense the flicker of the smart device, and after detecting the synchronization word, receive the subsequent device address and the temporary key.
  • the first communication module is further configured to receive a data packet sent by the controller; the smart device further includes a decryption module, configured to use the temporary key to the data packet Decrypting, the decrypted network information is saved only after the verification data is decrypted; the network information is calculated according to a predetermined algorithm to obtain a long-term key, and is added to the wireless network where the controller is located. Communication with devices in the wireless network is performed by the long-term key.
  • the present invention provides a method and system for an intelligent device to access a wireless network, and a temporary data packet including a temporary key is generated by the smart device, and the temporary data packet is transmitted by using a light blinking method; Improve the confidentiality of data transmission.
  • the controller detects the flashing light signal from the smart device through its own photosensitive device, and analyzes it. Go to the temporary data packet; encrypt the network information of the wireless network by using the temporary key, and send the encrypted network information to the smart device through the wireless network; the smart device receives the network information, decrypts the network information, and performs the operation on the network information.
  • a long-term key is obtained, and the communication is encrypted using a long-term key and added to the wireless network.
  • FIG. 1 is a flowchart of a method for a smart device to access a wireless network according to the present invention.
  • FIG. 2 is a waveform diagram of blinking brightness in a method for a smart device to access a wireless network according to the present invention.
  • FIG. 3 is a schematic diagram of an interaction process between a Bluetooth smart light and a mobile phone in a method for accessing a wireless network by a smart device according to the present invention.
  • FIG. 4 is a structural block diagram of a system for accessing a wireless network by a smart device according to the present invention.
  • the present invention provides a method and system for an intelligent device to access a wireless network.
  • the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
  • the present invention provides a method for an intelligent device to access a wireless network. Referring to FIG. 1, the method includes the following steps:
  • the smart device generates a temporary data packet including a temporary key, and the light emitting component transmits the temporary data packet to the controller by generating a flicker.
  • the temporary key is randomly generated, which improves the confidentiality; the light is used to transmit the temporary key through the blinking of the light-emitting component.
  • the confidentiality and security of communication are further improved.
  • the temporary data packet further includes a synchronization word and a device address of the smart device; the content of the temporary data packet is not necessarily a synchronization word, a device address, and a temporary key itself, and may be data converted by a specific manner, when After receiving the data, the controller performs inverse transformation to obtain a temporary key.
  • the device address may not be included.
  • the light emitting part emits one of visible light, infrared light, and ultrasonic wave, and when it is an ultrasonic wave, the light emitting part should be a sound emitting part.
  • the temporary key is a random temporary key, that is, the smart device generates a temporary data packet including a random temporary key.
  • the controller detects a flashing light signal sent by the smart device through its own photosensitive device, and parses the temporary data packet; the controller encrypts the network information of the wireless network by using a temporary key in the temporary data packet, and passes the The wireless transmission protocol based on the wireless network transmits the encrypted network information to the smart device.
  • the network information includes a network name of the wireless network, a network password, and the like.
  • the smart device decrypts the network information to obtain the network information, and obtains a long-term key by performing the operation on the network information, and adds the long-term key to the wireless network where the controller is located, and uses the long-term key to The controller communicates with other devices within the wireless network.
  • the smart device when the smart device is connected to the wireless network, it is not necessary to manually input a password, nor to scan a two-dimensional code or a label; the cost of the smart device is not increased, and the existing light-emitting device of the smart device can be used for optical communication. Greatly improve the confidentiality of data transmission and access.
  • step S10 specifically includes the following steps:
  • the smart device generates a piece of verification data and a temporary data packet that includes a random temporary key. Specifically, after the smart device is powered on, generates a piece of verification data and a temporary data packet including a random temporary key.
  • the step S110 may be: after the smart device is powered on, generate a temporary data packet including the verification data and the random temporary key; the smart device includes a smart phone, a tablet, The smart wearable device, the Bluetooth smart light, etc., in this embodiment, is a Bluetooth smart light.
  • the verification data is one of random data, fixed data, and data generated by a specific algorithm. In this embodiment, it is random data.
  • the smart device sends its own device address and the verification data through a wireless network; at the same time, its light-emitting component blinks at a frequency that is invisible to the human eye, and the temporary data packet is transmitted by blinking of light.
  • the wireless network is a radio frequency communication network, including WIFI, Bluetooth, zigbee, z-wave, infrared light, ultrasonic, and private protocol 2.4G communication.
  • the smart device selects Bluetooth or WIFI or infrared light or ultrasonic or zigbee or z-wave or 2.4G communication according to its own hardware characteristics for communication. For example, if the smartphone is available with Bluetooth or WIFI, the remote control can use infrared light or the like.
  • the Bluetooth smart light uses Bluetooth to broadcast its own device address and the verification data.
  • the undetectable frequency flicker of the human eye is a frequency greater than 72 Hz.
  • the light of the Bluetooth smart light alternately flashes with the first brightness and the second brightness, and the duty ratio of the two is 50%.
  • the first flicker frequency is defined to represent binary code 1
  • the second flicker frequency is defined to represent binary code 0, and 1 ms is transmitted for 1 bit of data.
  • the Bluetooth smart light transmits the temporary data packet.
  • the first brightness and the second brightness are different, preferably, The first brightness is 100% brightness and the second brightness is 90% brightness.
  • the second flicker frequency is 1/2 of the first flicker frequency.
  • the first flicker frequency is 8 kHz and the second flicker frequency is 4 kHz.
  • the relationship between the brightness of the flicker and time is as shown in FIG.
  • Non-lighting smart devices can also be used to implement the above process by means of indicator lights or LED lights on the device.
  • the modulation mode of transmitting data by blinking may have other forms, such as Form 1: increasing different blinking frequencies to indicate more data, such as still representing one data in 1 ms but 2 bits representing 2 bits of binary data 2 'b00, 5 kHz indicates 2-bit binary data 2'b01, 6 kHz indicates 2-bit binary data 2'b10, and 7 kHz indicates 2-bit binary data 2'b11 and the like.
  • Form 2 According to the 50% brightness retention time length in 2ms, the data is represented, for example, the 50% brightness maintenance time is less than 0.5ms in 2ms, and the remaining time is 100% brightness, indicating the binary number 1, otherwise the 50% brightness maintenance time in 2ms is greater than 0.5. Ms, the rest of the time is 100% brightness, indicating a binary number of zero.
  • the step S20 includes: the controller receiving the verification data through a corresponding wireless network, and sensing the flicker of the smart device by its own photosensitive device.
  • the controller includes a smart phone, a tablet computer, a smart wearable device, a remote controller, etc.
  • this embodiment is a mobile phone.
  • the controller first checks the synchronization word, and only receives the subsequent device address and the temporary key after detecting the synchronization word to ensure the integrity and security of the device address and the temporary key; to the device address through the wireless network
  • the corresponding smart device sends a data packet, where the data packet includes the authentication data encrypted by the temporary key and the ciphertext of the network information of the wireless network; in other words, the controller uses the temporary key pair to verify the Data and network information are encrypted, and the encrypted ciphertext is sent over the wireless network.
  • the smart device and controller use the temporary key to encrypt and decrypt in the previous data transmission, which improves the confidentiality of data transmission.
  • the photosensitive device is a camera or a light sensor.
  • the step S30 specifically includes: the smart device receives the data packet sent by the controller, decrypts the data packet by using the temporary key, and saves the decrypted device only after decrypting the verification data.
  • the network information is obtained; the network information is calculated according to a predetermined algorithm to obtain a long-term key, and is added to a wireless network where the controller is located, and communicates with devices in the wireless network through the long-term key.
  • the intelligent device sends a verification data to the controller, and after receiving the verification data fed back by the controller, the connection request of the corresponding controller is prevented, and the control of the intelligent device by the illegal controller is avoided, and the controller is improved.
  • the degree of recognition improves the security and confidentiality of communication with the controller.
  • the wireless network is preferably a home intelligence network. In the present invention, the interaction process between the Bluetooth smart light and the mobile phone is as shown in FIG.
  • the present invention further provides a system for the smart device to access the wireless network.
  • the system includes a smart device 10 and a controller 20.
  • the smart device 10 is configured to generate a temporary data packet including a temporary key, and the light emitting component transmits the temporary data packet to the controller by generating a flicker; after receiving the network information sent by the controller, the smart device The network information is decrypted to obtain the network information; the network information is calculated to obtain a long-term key, which is added to the wireless network, and is performed by the long-term key with the controller and other devices in the wireless network. Communication.
  • the temporary data packet further includes a synchronization word and a device address of the smart device; the temporary The content of the data packet is not necessarily the synchronization word, the device address, and the temporary key itself. It may be data converted in a specific manner.
  • the controller When the controller receives the data, it undergoes inverse transformation to obtain a temporary key.
  • the temporary key is a random temporary key, that is, the smart device 10 generates a temporary data packet including a random temporary key.
  • the controller 20 is configured to detect a flashing light signal sent by the smart device 10 through its own photosensitive device, and parse the temporary data packet; and encrypt the network information of the wireless network by using a temporary key in the temporary data packet, The encrypted network information is transmitted to the smart device 10 through the wireless network.
  • the network information includes a network name of the wireless network, a network password, and the like.
  • the smart device when the smart device is connected to the wireless network, it is not necessary to manually input a password, nor to scan a two-dimensional code or a label; the cost of the smart device is not increased, and the existing light-emitting device of the smart device can be used for optical communication. Greatly improve the confidentiality of data transmission and access.
  • the smart device 10 includes a data generating module 110, a first communication module 120, a lighting component 130, and a decryption module 140.
  • the data generating module 110 is configured to generate a piece of verification data and a temporary data packet including a random temporary key after the smart device 10 is powered on.
  • the smart device includes a smart phone, a tablet computer, a smart wearable device, and a Bluetooth smart light. In this embodiment, it is a Bluetooth smart light.
  • the first communication module 120 is configured to broadcast a device address of the smart device and the verification data.
  • the first communication module 120 is further configured to receive a data packet sent by the controller 20.
  • the first communication module 120 is one of a Bluetooth module, a WIFI module, an infrared light module, an ultrasonic module, a zigbee module, a z-wave module, and a 2.4G communication module.
  • the first communication module 120 is a Bluetooth module.
  • the illuminating component 130 is configured to flicker at a frequency that is invisible to the human eye, and transmit the temporary data packet by blinking of light.
  • the undetectable frequency flicker of the human eye is a frequency greater than 72 Hz.
  • the decrypting module 140 is configured to decrypt the data packet by using a temporary key, and save the decrypted network information only after decrypting the verification data; and performing the network information according to a predetermined algorithm.
  • a long-term key is then obtained and added to the wireless network in which the controller 20 is located, through which the long-term key communicates with devices in the wireless network.
  • the controller 20 includes a smart phone, a tablet computer, a smart wearable device, a remote controller, etc.
  • the embodiment is a mobile phone.
  • the controller includes a second communication module 210 and a light sensing device 220.
  • the second communication module 210 is configured to receive the verification data; after receiving the device address and the temporary key of the smart device 10, the photosensitive device 220 sends a data packet to the smart device 10 corresponding to the device address, where the data packet
  • the ciphertext includes authentication data encrypted with a temporary key and network information of the wireless network.
  • the second communication module 210 is one of a Bluetooth module, a WIFI module, an infrared light module, an ultrasonic module, a zigbee module, a z-wave module, and a 2.4G communication module.
  • the second communication module 210 is a Bluetooth module.
  • the photosensitive device 220 is configured to sense the flicker of the smart device 10, and only detects After the synchronization word, the subsequent device address and temporary key are received to ensure the integrity and security of the device address and the temporary key.
  • the photosensitive device 220 is a camera or a light sensor.
  • the smart device 10 and the controller 20 use the temporary key to perform encryption and decryption in the previous data transmission, thereby improving the confidentiality of the data transmission.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

本发明公开了一种智能设备接入无线网络的方法和系统，通过智能设备生成一个包含有临时密钥的临时数据包，采用光闪烁的方式传输临时数据包；极大的提高了数据传输的保密性。控制器通过自身的感光器件检测智能设备发出的闪烁光信号，并解析得到所述临时数据包；并利用临时密钥对无线网络的网络信息进行加密，通过无线网络将加密后的网络信息发送给智能设备；智能设备接收网络信息后解密，并对网络信息进行运算后得到长期密钥，利用长期密钥对通信进行加密并加入到无线网络中。由此，极大的提高了智能设备接入无线网络时的保密性。

Description

一种智能设备接入无线网络的方法和系统 技术领域
本发明涉及通信领域，特别涉及一种智能设备接入无线网络的方法和系统。
背景技术
传统的技术方案中，通常是在生产过程中为每件智能设备设置唯一密钥或者相同的密钥，并保存在智能设备内；用户购买该产品后，获取到该密钥，并将此密钥输入到手机或遥控器中进行配对，配对成功后，才能使智能设备与遥控器或手机之间建立安全链路，也就是说，利用初始的临时密钥完成配对操作后，智能设备和遥控器之间约定长期密钥，利用长期密钥对通信的加密进行后续的遥控。这个过程通常被称为长期密钥的分发(LTK)。
由于很多智能设备普遍没有按键和显示器如智能灯，用户要获取某个设备密钥时，只能通过说明书或外包装盒上的二维码或序列号制作成的标签的方式，这种做法直接增加了生产工序的复杂程度及生产成本；而且容易造成密钥丢失和安全隐患。
因而现有技术还有待改进和提高。
发明内容
鉴于上述现有技术的不足之处，本发明的目的在于提供一种智能设备接入无线网络的方法和系统，以提高智能设备接入无线网络时的保密性。
为了达到上述目的，本发明采取了以下技术方案：
一种智能设备接入无线网络的方法，包括如下步骤：
A、智能设备生成一个包含有临时密钥的临时数据包，其发光部件通过产生闪烁将所述临时数据包传递给控制器；
B、所述控制器通过自身的感光器件检测智能设备发出的闪烁光信号，并解析得到所述临时数据包；控制器利用临时数据包中的临时密钥对无线网络的网络信息进行加密，通过无线网络将加密后的网络信息发送给智能设备；
C、所述智能设备对所述网络信息进行解密，得到所述网络信息；将所述网络信息进行运算后得到长期密钥，加入到无线网络中；
所述的智能设备接入无线网络的方法中，所述步骤A具体包括如下步骤：
A1、智能设备生成一段验证数据和一个包含有临时密钥的临时数据包；或者，智能设备生成一个包含有验证数据以及临时密钥的临时数据包；
A2、智能设备通过无线网络发送自身的设备地址和所述验证数据；同时其发光部件以人眼不可察觉的频率闪烁，通过光的闪烁将所述临时数据包传递出去。
所述的智能设备接入无线网络的方法中，所述临时数据包还包括同步字和智能设备的设备地址。
所述的智能设备接入无线网络的方法中，所述步骤B包括：所述控制器通过无线网络接收所述验证数据，并通过自身的感光器件感应智能设备的闪烁，在检测到所述同步字后，接收后续的设备地址和 临时密钥；通过无线网络向设备地址对应的智能设备发送数据包，所述数据包包括采用临时密钥加密的验证数据和无线网络的网络信息的密文。
所述的智能设备接入无线网络的方法中，所述步骤C具体包括：所述智能设备接收控制器发出的数据包，利用临时密钥对所述数据包进行解密，只有在解密得到所述验证数据后，才保存解密后的所述网络信息；将所述网络信息按预定算法进行运算后得到长期密钥，并加入到控制器所在的无线网络中，通过所述长期密钥与无线网络中的设备进行通信。
一种智能设备接入无线网络的系统，所述系统包括：
智能设备，用于生成一个包含有临时密钥的临时数据包，其发光部件通过产生闪烁将所述临时数据包传递给控制器；在接收到控制器发出的网络信息后，对所述网络信息进行解密，得到所述网络信息；将所述网络信息进行运算后得到长期密钥，加入到无线网络中。
控制器，用于通过自身的感光器件检测智能设备发出的闪烁光信号，并解析得到所述临时数据包；利用临时数据包中的临时密钥对无线网络的网络信息进行加密，通过无线网络将加密后的网络信息发送给智能设备。
所述的智能设备接入无线网络的系统中，所述临时数据包还包括同步字和智能设备的设备地址。
所述的智能设备接入无线网络的系统中，所述智能设备包括：
数据生成模块，用于生成一段验证数据和一个包含有临时密钥的 临时数据包；或者，生成一个包含有验证数据以及临时密钥的临时数据包；
第一通信模块，用于广播智能设备的设备地址和所述验证数据；
发光部件，用于以人眼不可察觉的频率闪烁，通过光的闪烁将所述临时数据包传递出去。
所述的智能设备接入无线网络的系统中，所述控制器包括：
第二通信模块，用于接收所述验证数据；在感光器件接收到智能设备的设备地址和临时密钥后，向设备地址对应的智能设备发送数据包，所述数据包包括采用临时密钥加密的验证数据和无线网络的网络信息的密文；
感光器件，用于感应智能设备的闪烁，在检测到所述同步字后，接收后续的设备地址和临时密钥。
所述的智能设备接入无线网络的系统中，所述第一通信模块还用于接收控制器发出的数据包；所述智能设备还包括解密模块，用于利用临时密钥对所述数据包进行解密，只有在解密得到所述验证数据后，才保存解密后的所述网络信息；将所述网络信息按预定算法进行运算后得到长期密钥，并加入到控制器所在的无线网络中，通过所述长期密钥与无线网络中的设备进行通信。
相较于现有技术，本发明提供一种智能设备接入无线网络的方法和系统，通过智能设备生成一个包含有临时密钥的临时数据包，采用光闪烁的方式传输临时数据包；极大的提高了数据传输的保密性。控制器通过自身的感光器件检测智能设备发出的闪烁光信号，并解析得 到所述临时数据包；并利用临时密钥对无线网络的网络信息进行加密，通过无线网络将加密后的网络信息发送给智能设备；智能设备接收网络信息后解密，并对网络信息进行运算后得到长期密钥，利用长期密钥对通信进行加密并加入到无线网络中。由此，极大的提高了智能设备接入无线网络时的保密性。
附图说明
图1为本发明提供的智能设备接入无线网络的方法的流程图。
图2为本发明提供的智能设备接入无线网络的方法中，闪烁亮度的波形图。
图3为本发明提供的智能设备接入无线网络的方法中，蓝牙智能灯与手机的交互过程的示意图。
图4为本发明提供的智能设备接入无线网络的系统的结构框图。
具体实施方式
本发明提供一种智能设备接入无线网络的方法和系统。为使本发明的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
本发明提供一种智能设备接入无线网络的方法，请参阅图1，所述方法包括如下步骤：
S10、智能设备生成一个包含有临时密钥的临时数据包，其发光部件通过产生闪烁将所述临时数据包传递给控制器。临时密钥随机产生，提高了保密性；通过发光部件的闪烁，采用光来传输临时密钥， 进一步的提高了通信的保密性和安全性。其中，所述临时数据包还包括同步字和智能设备的设备地址；所述临时数据包的内容不一定是同步字、设备地址和临时密钥本身，可以是经过特定方式转换后的数据，当控制器接收到该数据后经过逆变换得到临时密钥。当然，在其他实施例中，也可以不包括所述设备地址。所述发光部件发出可见光、红外光、超声波中的一种，当为超声波时，所述发光部件应为发声部件。本实施例中，所述临时密钥为随机的临时密钥，即，智能设备生成一个包含有随机的临时密钥的临时数据包。
S20、所述控制器通过自身的感光器件检测智能设备发出的闪烁光信号，并解析得到所述临时数据包；控制器利用临时数据包中的临时密钥对无线网络的网络信息进行加密，通过无线网络基于的无线传输协议将加密后的网络信息发送给智能设备。所述网络信息包括无线网络的网络名称、网络密码等。
S30、所述智能设备对所述网络信息进行解密，得到所述网络信息；将所述网络信息进行运算后得到长期密钥，加入到控制器所在的无线网络中，通过所述长期密钥与所述控制器以及无线网络内的其他设备进行通信。
由此可知，智能设备接入到无线网络中时，无需人工输入密码，也不用扫描二维码或者标签；不会增加智能设备的成本，利用智能设备已有的发光器件进行光通信即可，极大的提高了数据传输与接入的保密性。
进一步的，所述步骤S10具体包括如下步骤：
S110、智能设备生成一段验证数据和一个包含有随机的临时密钥的临时数据包，具体的，智能设备上电后，生成一段验证数据和一个包含有随机的临时密钥的临时数据包。或者，在其他实施例中，所述步骤S110也可以是：智能设备上电后，生成一个包含有验证数据以及随机的临时密钥的临时数据包；所述智能设备包括智能手机、平板电脑、智能穿戴式设备以及蓝牙智能灯等，本实施例中，为蓝牙智能灯。所述验证数据为随机数据、固定数据和特定算法生成的数据中的一种，本实施例中，为随机数据。
S120、智能设备通过无线网络发送自身的设备地址和所述验证数据；同时其发光部件以人眼不可察觉的频率闪烁，通过光的闪烁将所述临时数据包传递出去。当然，在其他实施例中，也可以不包括所述设备地址。所述无线网络为射频通信网络，包括WIFI、蓝牙、zigbee、z-wave、红外光、超声波以及私有协议2.4G通信等。所述智能设备根据自身的硬件特点选用蓝牙或WIFI或红外光或超声波或zigbee或z-wave或2.4G通信等进行通信。如智能手机可用蓝牙或WIFI，遥控器可用红外光等。本实施例中，蓝牙智能灯采用蓝牙广播自身的设备地址和所述验证数据。
所述人眼不可察觉的频率闪烁为大于72Hz的频率。本实施例中，蓝牙智能灯的灯光以第一亮度和第二亮度交替闪烁，且两者的占空比为50％。定义第一闪烁频率表示二进制代码1，定义第二闪烁频率表示二进制代码0，1ms传输1个bit的数据。蓝牙智能灯以这种方式，将所述临时数据包发送出去。所述第一亮度和第二亮度不同，优选的， 所述第一亮度为100％亮度，所述第二亮度为90％亮度。所述第二闪烁频率为所述第一闪烁频率的1/2。优选的，所述第一闪烁频率为8kHz，所述第二闪烁频率为4kHz。本发明中，闪烁的亮度与时间的关系如图2所示。非照明类的智能设备也可以通过设备上的指示灯或LED灯实现上述过程。
当然，在其他实施例中，通过闪烁传递数据的调制方式还可以有其他形式，如形式一：增加不同的闪烁频率表示更多数据，如仍然以1ms表示一个数据但是4kHz表示2比特二进制数据2’b00，5kHz表示2比特二进制数据2’b01，6kHz表示2比特二进制数据2’b10，7kHz表示2比特二进制数据2’b11等。形式二：根据2ms内50％亮度保持时间长度来表示数据，如2ms内50％亮度维持时间小于0.5ms，其余时间为100％亮度，表示二进制数1，否则2ms内50％亮度维持时间大于0.5ms，其余时间为100％亮度，表示二进制数0。
进一步的，所述步骤S20包括：所述控制器通过对应的无线网络接收所述验证数据，并通过自身的感光器件感应智能设备的闪烁。所述控制器包括智能手机、平板电脑、智能穿戴式设备、遥控器等，优选的，本实施例为手机。所述控制器先检查同步字，只有在检测到所述同步字后，才接收后续的设备地址和临时密钥，以确保设备地址和临时密钥的完整性和安全；通过无线网络向设备地址对应的智能设备发送数据包，所述数据包包括采用临时密钥加密的验证数据和无线网络的网络信息的密文；换而言之，所述控制器利用所述临时密钥对所述验证数据和网络信息进行加密，并将加密后的密文通过无线网络发 送给智能设备。智能设备和控制器采用临时密钥在前期的数据传输中进行加密和解密，提高了数据传输的保密性。
本实施例中，所述感光器件为摄像头或光线传感器。
进一步的，所述步骤S30具体包括：所述智能设备接收控制器发出的数据包，利用临时密钥对所述数据包进行解密，只有在解密得到所述验证数据后，才保存解密后的所述网络信息；将所述网络信息按预定算法进行运算后得到长期密钥，并加入到控制器所在的无线网络中，通过所述长期密钥与无线网络中的设备进行通信。智能设备通过产生一个验证数据，将其发给控制器，在接收到控制器反馈的验证数据后，才相应控制器的连接请求，避免非法控制器对智能设备的控制，提高了对控制器的识别度，提高了与控制器通信的安全性和保密性。所述无线网路优选为家庭智能网络。本发明中，蓝牙智能灯与手机的交互过程如图3所示。
基于上述实施例提供的智能设备接入无线网络的方法，本发明还提供一种智能设备接入无线网络的系统。请参阅图4，所述系统包括智能设备10和控制器20。
所述智能设备10，用于生成一个包含有临时密钥的临时数据包，其发光部件通过产生闪烁将所述临时数据包传递给控制器；在接收到控制器发出的网络信息后，对所述网络信息进行解密，得到所述网络信息；将所述网络信息进行运算后得到长期密钥，加入到无线网络中，通过所述长期密钥与所述控制器以及无线网络内的其他设备进行通信。所述临时数据包还包括同步字和智能设备的设备地址；所述临时 数据包的内容不一定是同步字、设备地址和临时密钥本身，可以是经过特定方式转换后的数据，当控制器接收到该数据后经过逆变换得到临时密钥。当然，在其他实施例中，也可以不包括所述设备地址。本实施例中，所述临时密钥为随机的临时密钥，即，智能设备10生成一个包含有随机的临时密钥的临时数据包。
所述控制器20，用于通过自身的感光器件检测智能设备10发出的闪烁光信号，并解析得到所述临时数据包；利用临时数据包中的临时密钥对无线网络的网络信息进行加密，通过无线网络将加密后的网络信息发送给智能设备10。所述网络信息包括无线网络的网络名称、网络密码等。
由此可知，智能设备接入到无线网络中时，无需人工输入密码，也不用扫描二维码或者标签；不会增加智能设备的成本，利用智能设备已有的发光器件进行光通信即可，极大的提高了数据传输与接入的保密性。
进一步的，所述智能设备10包括数据生成模块110、第一通信模块120、发光部件130和解密模块140。
所述数据生成模块110，用于在智能设备10上电后，生成一段验证数据和一个包含有随机的临时密钥的临时数据包。所述智能设备包括智能手机、平板电脑、智能穿戴式设备以及蓝牙智能灯等，本实施例中，为蓝牙智能灯。
所述第一通信模块120，用于广播智能设备的设备地址和所述验证数据。所述第一通信模块120还用于接收控制器20发出的数据包。
所述第一通信模块120为蓝牙模块、WIFI模块、红外光模块、超声波模块、zigbee模块、z-wave模块、2.4G通信模块中的一种。本实施例中，所述第一通信模块120为蓝牙模块。
所述发光部件130，用于以人眼不可察觉的频率闪烁，通过光的闪烁将所述临时数据包传递出去。所述人眼不可察觉的频率闪烁为大于72Hz的频率。
所述解密模块140，用于利用临时密钥对所述数据包进行解密，只有在解密得到所述验证数据后，才保存解密后的所述网络信息；将所述网络信息按预定算法进行运算后得到长期密钥，并加入到控制器20所在的无线网络中，通过所述长期密钥与无线网络中的设备进行通信。
进一步的，所述控制器20包括智能手机、平板电脑、智能穿戴式设备、遥控器等，优选的，本实施例为手机。所述控制器包括第二通信模块210和感光器件220。
所述第二通信模块210，用于接收所述验证数据；在感光器件220接收到智能设备10的设备地址和临时密钥后，向设备地址对应的智能设备10发送数据包，所述数据包包括采用临时密钥加密的验证数据和无线网络的网络信息的密文。与所述第一通信模块120对应的，所述第二通信模块210为蓝牙模块、WIFI模块、红外光模块、超声波模块、zigbee模块、z-wave模块、2.4G通信模块中的一种。本实施例中，所述第二通信模块210为蓝牙模块。
所述感光器件220，用于感应智能设备10的闪烁，只有在检测 到所述同步字后，才接收后续的设备地址和临时密钥，以确保设备地址和临时密钥的完整性和安全。本实施例中，所述感光器件220为摄像头或光线传感器。智能设备10和控制器20采用临时密钥在前期的数据传输中进行加密和解密，提高了数据传输的保密性。
可以理解的是，对本领域普通技术人员来说，可以根据本发明的技术方案及其发明构思加以等同替换或改变，而所有这些改变或替换都应属于本发明所附的权利要求的保护范围。

Claims (10)

  1. 一种智能设备接入无线网络的方法，其特征在于，包括如下步骤：
    A、智能设备生成一个包含有临时密钥的临时数据包，其发光部件通过产生闪烁将所述临时数据包传递给控制器；
    B、所述控制器通过自身的感光器件检测智能设备发出的闪烁光信号，并解析得到所述临时数据包；控制器利用临时数据包中的临时密钥对无线网络的网络信息进行加密，通过无线网络将加密后的网络信息发送给智能设备；
    C、所述智能设备对所述网络信息进行解密，得到所述网络信息；将所述网络信息进行运算后得到长期密钥，加入到无线网络中。
  2. 根据权利要求1所述的智能设备接入无线网络的方法，其特征在于，所述步骤A具体包括如下步骤：
    A1、智能设备生成一段验证数据和一个包含有临时密钥的临时数据包；或者，智能设备生成一个包含有验证数据以及临时密钥的临时数据包；
    A2、智能设备通过无线网络发送自身的设备地址和所述验证数据；同时其发光部件以人眼不可察觉的频率闪烁，通过光的闪烁将所述临时数据包传递出去。
  3. 根据权利要求2所述的智能设备接入无线网络的方法，其特征在于，所述临时数据包还包括同步字和智能设备的设备地址。
  4. 根据权利要求3所述的智能设备接入无线网络的方法，其特征在于，所述步骤B包括：所述控制器通过无线网络接收所述验证数据，并通过自身的感光器件感应智能设备的闪烁，在检测到所述同步字后，接收后续的设备地址和临时密钥；通过无线网络向设备地址对应的智能设备发送数据包，所述数据包包括采用临时密钥加密的验证数据和无线网络的网络信息的密文。
  5. 根据权利要求4所述的智能设备接入无线网络的方法，其特征在于，所述步骤C具体包括：所述智能设备接收控制器发出的数据包，利用临时密钥对所述数据包进行解密，只有在解密得到所述验证数据后，才保存解密后的所述网络信息；将所述网络信息按预定算法进行运算后得到长期密钥，并加入到控制器所在的无线网络中，通过所述长期密钥与无线网络中的设备进行通信。
  6. 一种智能设备接入无线网络的系统，其特征在于，所述系统包括：
    智能设备，用于生成一个包含有临时密钥的临时数据包，其发光部件通过产生闪烁将所述临时数据包传递给控制器；在接收到控制器发出的网络信息后，对所述网络信息进行解密，得到所述网络信息；将所述网络信息进行运算后得到长期密钥，加入到无线网络中；
    控制器，用于通过自身的感光器件检测智能设备发出的闪烁光信号，并解析得到所述临时数据包；利用临时数据包中的临时密钥对无线网络的网络信息进行加密，通过无线网络将加密后的网络信息发送给智能设备。
  7. 根据权利要求6所述的智能设备接入无线网络的系统，其特征在于，所述临时数据包还包括同步字和智能设备的设备地址。
  8. 根据权利要求7所述的智能设备接入无线网络的系统，其特征在于，所述智能设备包括：
    数据生成模块，用于生成一段验证数据和一个包含有临时密钥的临时数据包；或者，生成一个包含有验证数据以及临时密钥的临时数据包；
    第一通信模块，用于广播智能设备的设备地址和所述验证数据；
    发光部件，用于以人眼不可察觉的频率闪烁，通过光的闪烁将所述临时数据包传递出去。
  9. 根据权利要求8所述的智能设备接入无线网络的系统，其特征在于， 所述控制器包括：
    第二通信模块，用于接收所述验证数据；在感光器件接收到智能设备的设备地址和临时密钥后，向设备地址对应的智能设备发送数据包，所述数据包包括采用临时密钥加密的验证数据和无线网络的网络信息的密文；
    感光器件，用于感应智能设备的闪烁，在检测到所述同步字后，接收后续的设备地址和临时密钥。
  10. 根据权利要求9所述的智能设备接入无线网络的系统，其特征在于，所述第一通信模块还用于接收控制器发出的数据包；所述智能设备还包括解密模块，用于利用临时密钥对所述数据包进行解密，只有在解密得到所述验证数据后，才保存解密后的所述网络信息；将所述网络信息按预定算法进行运算后得到长期密钥，并加入到控制器所在的无线网络中，通过所述长期密钥与无线网络中的设备进行通信。
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