CN108737381A - A kind of extended authentication method of Internet of things system - Google Patents
A kind of extended authentication method of Internet of things system Download PDFInfo
- Publication number
- CN108737381A CN108737381A CN201810364336.4A CN201810364336A CN108737381A CN 108737381 A CN108737381 A CN 108737381A CN 201810364336 A CN201810364336 A CN 201810364336A CN 108737381 A CN108737381 A CN 108737381A
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- Prior art keywords
- internet
- things
- authentication
- subscriber identity
- identity module
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Classifications
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- 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
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
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- 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
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- 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
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0853—Network architectures or network communication protocols for network security for authentication of entities using an additional device, e.g. smartcard, SIM or a different communication terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
Abstract
The invention discloses a kind of extended authentication method of Internet of things system, the Internet of things system includes internet of things equipment, Internet of Things authentication platform and the Subscriber Identity Module on the internet of things equipment and communication module；The Internet of Things authentication platform initiates authentication request or the Subscriber Identity Module to when Internet of Things authentication platform initiation authentication request to the Subscriber Identity Module, and the operator identifier AMF authenticated in factors A UTH is set as stored device identification number；The device identification number is to the IMEI numbers of internet of things equipment chip id, communication module and the IMSI number of Subscriber Identity Module is encrypted and Hash operation obtains.The Subscriber Identity Module (SIM/USIM/eSIM etc.) of the method for the present invention is in addition to having standard mobile communication network authentication function, the orientation certification for being directed toward other Internet of Things authentication platforms is also supported, to realize identity or WIFI the connection certification to internet of things equipment.
Description
Technical field
The present invention relates to Internet of Things field of communication technology, more particularly to the extended authentication method of a kind of Internet of things system.
Background technology
Internet of Things is, according to the agreement of agreement, to realize that person to person, people and object and object and object are complete by information sensing device
The network of face interconnection.The various letters for being mainly characterized by obtaining physical world by modes such as radio frequency identification, sensors of Internet of Things
Breath, using the communication module of internet of things equipment, in conjunction with networks such as internet, mobile radio communications, into the transmission and interaction of row information,
Analyzing processing is carried out to information using intelligent computer technology, realizes intelligentized decision and control.
Internet of things equipment is the information collection node of Internet of Things data platform, and safety is directly related to gathered data
Reliability is the basis of platform data analysis.The safety of internet of things equipment relies primarily on access and control authority.Access safety is determined
Whom, which determines, can obtain each sensing data and the facility information being connected in equipment；Whom control safety decision-making, which, can allow equipment
Execute specific action order.At present in the application of major part Internet of Things, only supports to apply security system, lack and Internet of Things is set
It is standby to access and control foundation with the security system of complete set.
Subscriber Identity Module (SIM/USIM/eSIM etc.) is also referred to as smart card, it stores digital mobile phone visitor on chip
Family information, encrypted key and algorithm differentiate for digital mobile network client identity, and voice messaging when conversing client
Encryption.It is mainly used in the mobile communication networks such as GSM, UMTS.
Subscriber Identity Module (SIM/USIM/eSIM etc.) is the unique identities certification of internet of things equipment connection mobile communications network
Equipment.Due to the intrinsic security feature of Subscriber Identity Module, if it is possible to expand to the authentication to internet of things equipment, Internet of Things
The safety of equipment will obtain effective guarantee.
Invention content
In view of the above problems, the present invention provides a kind of extended authentication method of Internet of things system, is identified based on user mobile phone
Card standard authentication certification is combined, in the base for not influencing parameters for authentication and algorithm needed for the standard authentication instruction that user mobile phone does not block
On plinth, using other parameters for authentication and algorithm in card, complex networking certification platform completes the peace to internet of things equipment together
Full certification.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of extended authentication method of Internet of things system, the Internet of things system include internet of things equipment, Internet of Things certification
Platform and the Subscriber Identity Module on the internet of things equipment and communication module；The Internet of Things authentication platform is to the use
Family identification card initiates authentication request or the Subscriber Identity Module and initiates authentication request to the Internet of Things authentication platform
When, the operator identifier AMF authenticated in factors A UTH is set as stored device identification number；The device identification number is to object
The IMSI number of networked devices chip id, the IMEI numbers of communication module and Subscriber Identity Module is encrypted and Hash operation obtains
?.
Preferably, the preparation method of the device identification number further includes：Chip id, internet of things equipment to internet of things equipment
WIFI NIC address, IMEI numbers, the IMSI number of Subscriber Identity Module of communication module be encrypted and Hash operation.
Preferably, the Internet of Things authentication platform generates the device identification number and/or the Subscriber Identity Module generates institute
State device identification number.
Preferably, when the internet of things equipment initiates registration request to the Internet of Things authentication platform, the Internet of Things is recognized
It demonstrate,proves platform and generates the device identification number.
Preferably, the method that the internet of things equipment initiates registration request, including：
The internet of things equipment sends the chip id for carrying internet of things equipment, communication module to the Internet of Things authentication platform
IMEI number and Subscriber Identity Module IMSI number registration request；
The Internet of Things authentication platform generates device identification number and returns to the internet of things equipment.
Preferably, the method that the internet of things equipment initiates registration request, including：
Chip id, the Internet of Things that the internet of things equipment sends carrying internet of things equipment to the Internet of Things authentication platform are set
The IMEI numbers of standby WIFI NIC address, communication module, the registration request of the IMSI number of Subscriber Identity Module；
The Internet of Things authentication platform generates device identification number and returns to the internet of things equipment.
Preferably, before the internet of things equipment initiates registration request, further include：
The internet of things equipment is numbered to the Subscriber Identity Module and communication module transmission acquisition IMSI number and IMEI
Request；
The Subscriber Identity Module and communication module return to IMSI number and IMEI is numbered to the internet of things equipment.
Preferably, after the internet of things equipment initiates registration request, further include：
The internet of things equipment sends the request of update device identification number to the Subscriber Identity Module；
The device identification number that the Subscriber Identity Module updates storage.
Preferably, the internet of things equipment sends to the Subscriber Identity Module and communication module and obtains IMSI number and IMEI
Before the request of number, further include：
The communication module increases an AT+CSIM order, allow the internet of things equipment transmission standard APDU orders to
The Subscriber Identity Module, the authentication that the Internet of Things authentication platform is verified by Subscriber Identity Module are asked.
Preferably, the Internet of Things authentication platform initiates the method that authentication is asked to the Subscriber Identity Module, including：
The authentication that the Internet of Things authentication platform sends carrying authentication five-tuple RAND, XRES, IK, CK and AUTH is asked
It asks to the internet of things equipment；
Whether the value that the internet of things equipment compares the AMF in authentication factors A UTH is consistent with the device identification number of storage,
Refuse this connection if inconsistent；If unanimously the authentication is asked to be transmitted to user's identification by the communication module
Card；
The Subscriber Identity Module carries out authentication according to preset algorithm, allows this to ask if authentication result is legal,
Otherwise refuse this connection.
A kind of extended authentication method of Internet of things system of the present invention, Internet of Things authentication platform therein and user know
Do not block support UMTS authentication agreements, difference lies in authentication requests with standard mobile communication network authentication function
When, the operator identifier AMF authenticated in factors A UTH is set as stored device identification number, judges to reflect by device identification number
Internet of Things authentication platform or other equipment are come from when weighing certification request and carries out authentication, to complete to internet of things equipment
Safety certification.
A kind of extended authentication method of Internet of things system of the present invention, Subscriber Identity Module (SIM/USIM/eSIM
Deng) in addition to having standard mobile communication network authentication function, it also supports to be directed toward the orientation certification for specifying Internet of Things authentication platform, from
And realize identity or WIFI the connection certification to internet of things equipment.
A kind of extended authentication method of Internet of things system of the present invention, the device identification number are to internet of things equipment
The IMSI number of chip id, the IMEI numbers of communication module and Subscriber Identity Module is encrypted and Hash operation obtains, can be true
Protect its uniqueness and can identification.
The extended authentication method of a kind of Internet of things system of the present invention, by increasing an AT+ in communication module
CSIM explosion commands, to allow internet of things equipment to send standard APDU orders to Subscriber Identity Module, by Subscriber Identity Module
UMTS authentication arithmetics verification Internet of Things authentication platform certification request, so that it is guaranteed that Internet of Things authentication platform every time access or control
Make the legitimacy of request.
Above description is only the general introduction of technical solution of the present invention, in order to more clearly understand the technology hand of the present invention
Section, so as to be implemented in accordance with the contents of the specification, and in order to allow the present invention above and other objects, features and advantages
It can be clearer and more comprehensible, be exemplified below the specific implementation mode of the present invention.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
Above-mentioned and other purposes, the advantages and features of the present invention.
Description of the drawings
Fig. 1 is the device identification number generating structure figure of inventive method embodiment；
Fig. 2 is the internet of things equipment register flow path figure of the method for the present invention embodiment；
Fig. 3 is the Internet of Things authentication platform authentication flow chart of the method for the present invention embodiment.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
A kind of extended authentication method of Internet of things system of the present invention, the Internet of things system includes internet of things equipment, Internet of Things
Net authentication platform, the Subscriber Identity Module on the internet of things equipment and the communication mould on the internet of things equipment
Block；The Internet of Things authentication platform initiates authentication request or the Subscriber Identity Module to the object to the Subscriber Identity Module
When networking certification platform initiates authentication request, the operator identifier AMF in authentication factors A UTH is set as stored and sets
Standby identifier dID；The device identification number dID is to know to the IMEI numbers of internet of things equipment chip id, communication module and user
The IMSI number that do not block is encrypted and Hash operation obtains.
In the present embodiment, the communication module is wireless communication module.The internet of things equipment chip id is using every
Chips dispatch from the factory preset unique number, are defined and are numbered by chip producer；The IMEI numbers refer to the world of communication module
Mobile device identification code is applied from producer to specialized agency is unified, it is ensured that each IMEI number is global unique；The IMSI number
Code is the abbreviation of international mobile subscriber identity, and the mobile subscriber of a certain mobile communications network, is transported by mobile network for identification
It seeks quotient to provide, the whole world is unique.The Encryption Algorithm can be general Encryption Algorithm, so or md5 encryption such as RAS encryptions, this hair
Bright embodiment does not do unique restriction, and carrying out Hash operation to encrypted content after the completion of encryption obtains cryptographic Hash as equipment knowledge
Alias dID.
It should be noted that the Internet of Things authentication platform of the present invention and user's identification on the internet of things equipment
Card supports UMTS authentication agreements, naturally it is also possible to support includes to authenticate other authentication agreements of factors A UTH,
And authentication can be carried out according to protocol conventions.
Further, shown in Figure 1, the preparation method of the device identification number dID further includes：To internet of things equipment
Chip id, the WIFI NIC address of internet of things equipment, IMEI numbers, the IMSI number of Subscriber Identity Module of communication module carry out
Encryption and Hash operation.The physics of the practical WIFI network interface cards for internet of things equipment of WIFI NIC address of internet of things equipment herein
The address addresses Mac, by WIFI module, businessman provides.For there is the internet of things equipment of WIFI NIC address, equipment identification is being sought
When number dID, it can be compiled with the chip id of internet of things equipment, the IMEI of communication module using the addresses Mac as an input parameter
Number, the IMSI number of Subscriber Identity Module is encrypted together and Hash operation, obtain device identification number dID.
Further, the Internet of Things authentication platform generates the device identification number dID and/or Subscriber Identity Module life
At the device identification number dID.
Specifically, the Internet of Things authentication platform includes the first device identification number generation module, the Subscriber Identity Module packet
The second device identification number generation module is included.The first device identification number generation module and second device identification number generate
Module is used for the IMSI number of the chip id according to internet of things equipment, the IMEI numbers of communication module and Subscriber Identity Module according to pre-
Fixed Encryption Algorithm and Hash operation generate device identification number dID, alternatively, the first device identification number generation module and described
Second device identification number generation module is used for the chip id according to internet of things equipment, the IMEI numbers of communication module, user's identification
The IMSI number of card and the WIFI NIC address of internet of things equipment generate equipment according to scheduled Encryption Algorithm and Hash operation and know
Alias dID.The encryption stored in the first device identification number generation module and the second device identification number generation module is calculated
Method and Hash operation rule needs are consistent, to ensure that calculated device identification number dID is consistent.
Further, when the internet of things equipment initiates registration request to the Internet of Things authentication platform, the Internet of Things
Authentication platform generates the device identification number dID.
Specifically, it is shown in Figure 2, when the internet of things equipment initiates registration request to the Internet of Things authentication platform,
By the IMSI number of the IMEI of the chip id of internet of things equipment, communication module number and Subscriber Identity Module (or internet of things equipment
Chip id, the WIFI NIC address of internet of things equipment, IMEI numbers, the IMSI number of Subscriber Identity Module of communication module) hair
Give the Internet of Things authentication platform and/or the Subscriber Identity Module, the first device identification number of the Internet of Things authentication platform
Generation module and/or the Subscriber Identity Module create unique device identification number dID.The Internet of Things authentication platform and user know
It Ka not use subsequently dID to be identified as device authentication, replace the operation in the authentication token AUTH in standard UMTS right discriminating systems
Trade mark knows AMF fields.Meanwhile the Internet of Things authentication platform or the Subscriber Identity Module send out the device identification number dID of generation
Give the internet of things equipment.
It further, need to be by object when initiating registration request to the Internet of Things authentication platform due to the internet of things equipment
IMSI number (or the core of internet of things equipment of the chip ids of networked devices, the IMEI numbers of communication module and Subscriber Identity Module
Piece ID, the WIFI NIC address of internet of things equipment, IMEI numbers, the IMSI number of Subscriber Identity Module of communication module) it is sent to
The Internet of Things authentication platform needs to obtain to the communication module so before the internet of things equipment initiates registration request
IMEI is numbered, and IMSI number is obtained to Subscriber Identity Module, as follows：
The internet of things equipment is numbered to the Subscriber Identity Module and communication module transmission acquisition IMSI number and IMEI
Request；
The Subscriber Identity Module and communication module return to IMSI number and IMEI is numbered to the internet of things equipment.
Further, after the internet of things equipment initiates registration request, further include：
The internet of things equipment sends the request of update device identification number dID to the Subscriber Identity Module；
The device identification number dID that the Subscriber Identity Module updates storage.
Specifically, if it is registering for the first time, the Subscriber Identity Module can will state the life of the second device identification number generation module
At the equipment that generates of the first device identification number generation module for sending over of device identification number dID and internet of things equipment know
Alias dID is compared, if unanimously, judging to succeed in registration, otherwise judging registration failure.If it is re-register or other notes
Volume, the device identification number dID that the Subscriber Identity Module can be updated storage directly.
Further, the internet of things equipment sent to the Subscriber Identity Module and communication module obtain IMSI number and
Before the request of IMEI numbers, further include：
The communication module increases an AT+CSIM order, and the internet of things equipment is allowed to send standard APDU orders (such as
Select command and UMTS the authentication order of standard) Subscriber Identity Module is given, pass through the UMTS authentication arithmetics in Subscriber Identity Module
The authentication request of the Internet of Things authentication platform is verified, so that it is guaranteed that the Internet of Things authentication platform accesses every time or control
The legitimacy of request.
Further, shown in Figure 3, the Internet of Things authentication platform initiates authentication to the Subscriber Identity Module asks
The method asked, including：
The authentication that the Internet of Things authentication platform sends carrying authentication five-tuple RAND, XRES, IK, CK and AUTH is asked
It asks to the internet of things equipment；
The internet of things equipment compare the AMF in authentication factors A UTH value whether the device identification number dID mono- with storage
It causes, refuses this connection if inconsistent；If unanimously the authentication is asked to be transmitted to user by the communication module
Identification card；
The Subscriber Identity Module carries out authentication according to preset algorithm, allows this to ask if authentication result is legal,
Otherwise refuse this connection.
Specifically, the Internet of Things authentication platform includes the first authentication process module, it is sent to generating authentication five-tuple
The internet of things equipment.The Subscriber Identity Module includes the second authentication process module, to disappear to the authentication received request
Breath is authenticated according to preset algorithm.The processing procedure of the first authentication process module can be with UMTS or other mobile communication systems
The authentication process process of system network side is consistent, and distinctive points are will be in standard UMTS right discriminating systems or other mobile communication system
Operator identifier AMF fields in authentication token AUTH are set as device identification number dID.The place of the first authentication process module
Reason process can be consistent with the authentication process process of UMTS or other mobile communication system user sides (Subscriber Identity Module), and distinctive points exist
Compare by the operator identifier AMF fields in authentication token AUTH, if unanimously, judged in by device identification number dID
It is the authentication request that Internet of Things authentication platform sends over, if inconsistent, other in Subscriber Identity Module can be transmitted to
Authentication module processing.
It is understood that authentication request can also be initiated by internet of things equipment, internet of things equipment transparent transmission authentication is asked
Ask message to the Subscriber Identity Module, the second authentication process module of the Subscriber Identity Module generates authentication five-tuple, the object
First authentication process module of networking certification platform authenticates the authentication request message received according to preset algorithm.
In one specific embodiment, entire implementation steps are as follows：
1, the Internet of Things authentication platform for supporting UMTS right discriminating systems is built；
2, increase transparent transmission AT+CSIM explosion commands in destinations traffic module so that internet of things equipment can be with access modules
On Subscriber Identity Module；
3, the Subscriber Identity Module for supporting extended authentication is made, and distributes the file needed for corresponding internet of things equipment certification
(such as memory spaces of Subscriber Identity Module storage data) and space；
4, the Subscriber Identity Module of the communication module of step 2 and step 3 is welded to target internet of things equipment together corresponding
Position；
5, start internet of things equipment, log in mobile communications network using communication module, and initiate to Internet of Things authentication platform
Facility registration；
6, after the registration request of Internet of Things authentication platform reception internet of things equipment, so that it may to initiate to access to internet of things equipment
Or control data.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of extended authentication method of Internet of things system, which is characterized in that the Internet of things system includes internet of things equipment, object
Networking certification platform and the Subscriber Identity Module on the internet of things equipment and communication module；The Internet of Things authentication platform
Authentication request is initiated to the Subscriber Identity Module or the Subscriber Identity Module initiates to authenticate to the Internet of Things authentication platform
When certification request, the operator identifier AMF authenticated in factors A UTH is set as stored device identification number；The equipment identification
It number is encrypted for the IMSI number to the IMEI of internet of things equipment chip id, communication module number and Subscriber Identity Module and Hash
Operation obtains.
2. the extended authentication method of Internet of things system according to claim 1, which is characterized in that the device identification number
Preparation method further includes：The IMEI of the chip id of internet of things equipment, the WIFI NIC address of internet of things equipment, communication module is compiled
Number, the IMSI number of Subscriber Identity Module is encrypted and Hash operation.
3. the extended authentication method of Internet of things system according to claim 1 or 2, which is characterized in that the Internet of Things is recognized
It demonstrate,proves platform and generates the device identification number and/or the Subscriber Identity Module generation device identification number.
4. the extended authentication method of Internet of things system according to claim 3, which is characterized in that the internet of things equipment to
When the Internet of Things authentication platform initiates registration request, the Internet of Things authentication platform generates the device identification number.
5. the extended authentication method of Internet of things system according to claim 4, which is characterized in that the internet of things equipment hair
The method for playing registration request, including：
The internet of things equipment sends the chip id, communication module for carrying internet of things equipment to the Internet of Things authentication platform
IMEI is numbered and the registration request of the IMSI number of Subscriber Identity Module；
The Internet of Things authentication platform generates device identification number and returns to the internet of things equipment.
6. the extended authentication method of Internet of things system according to claim 4, which is characterized in that the internet of things equipment hair
The method for playing registration request, including：
The internet of things equipment sends the chip id, internet of things equipment for carrying internet of things equipment to the Internet of Things authentication platform
The registration request of WIFI NIC address, the IMEI numbers of communication module, the IMSI number of Subscriber Identity Module；
The Internet of Things authentication platform generates device identification number and returns to the internet of things equipment.
7. the extended authentication method of Internet of things system according to claim 4, which is characterized in that the internet of things equipment hair
Before playing registration request, further include：
The internet of things equipment sends the request for obtaining IMSI number and IMEI numbers to the Subscriber Identity Module and communication module；
The Subscriber Identity Module and communication module return to IMSI number and IMEI is numbered to the internet of things equipment.
8. the extended authentication method of Internet of things system according to claim 4, which is characterized in that the internet of things equipment hair
After playing registration request, further include：
The internet of things equipment sends the request of update device identification number to the Subscriber Identity Module；
The device identification number that the Subscriber Identity Module updates storage.
9. the extended authentication method of Internet of things system according to claim 4, which is characterized in that the internet of things equipment to
Before the Subscriber Identity Module and communication module send the request for obtaining IMSI number and IMEI numbers, further include：
The communication module increases an AT+CSIM order, and the internet of things equipment is allowed to send standard APDU orders to described
Subscriber Identity Module, the authentication that the Internet of Things authentication platform is verified by Subscriber Identity Module are asked.
10. the extended authentication method of Internet of things system according to claim 1, which is characterized in that the Internet of Things certification
Platform initiates the method that authentication is asked to the Subscriber Identity Module, including：
The Internet of Things authentication platform send carry authentication five-tuple RAND, XRES, IK, CK and AUTH authentication ask to
The internet of things equipment；
Whether the value that the internet of things equipment compares the AMF in authentication factors A UTH is consistent with the device identification number of storage, differs
Refuse this connection if cause；If unanimously the authentication is asked to be transmitted to Subscriber Identity Module by the communication module；
The Subscriber Identity Module carries out authentication according to preset algorithm, allows this to ask if authentication result is legal, otherwise
Refuse this connection.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109451504A (en) * | 2019-01-03 | 2019-03-08 | 中国联合网络通信集团有限公司 | Internet of Things mould group method for authenticating and system |
| CN111385379A (en) * | 2020-03-05 | 2020-07-07 | 中国信息通信研究院 | Internet of things identification method and device for eSIM terminal |
| CN111726794A (en) * | 2020-06-24 | 2020-09-29 | 信物(天津)技术有限公司 | LPWA terminal, eSIM proxy terminal and data processing method thereof |
| CN111741465A (en) * | 2019-03-25 | 2020-10-02 | 成都鼎桥通信技术有限公司 | Soft SIM protection method and equipment |
| CN111769944A (en) * | 2019-04-02 | 2020-10-13 | 华为技术有限公司 | Data processing method, visiting network element and terminal equipment |
| CN112333144A (en) * | 2020-09-15 | 2021-02-05 | 武汉天喻聚联科技有限公司 | Data security system and method of communication module |
| CN112469042A (en) * | 2021-01-28 | 2021-03-09 | 北京树米网络科技有限公司 | System for locking bound equipment, module and subscriber identity module |
| CN112948784A (en) * | 2021-03-23 | 2021-06-11 | 中国信息通信研究院 | Internet of things terminal identity authentication method, computer storage medium and electronic equipment |
| CN113572716A (en) * | 2020-04-29 | 2021-10-29 | 青岛海尔滚筒洗衣机有限公司 | Equipment detection method and system |
| CN113938506A (en) * | 2021-12-14 | 2022-01-14 | 北京宜通华瑞科技有限公司 | Communication system based on Internet of things |
| CN114338177A (en) * | 2021-12-30 | 2022-04-12 | 天翼物联科技有限公司 | Directional access control method and system for Internet of things |
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