CN114006740B - Management method and application of digital identity of Internet of things equipment based on blockchain - Google Patents
Management method and application of digital identity of Internet of things equipment based on blockchain Download PDFInfo
- Publication number
- CN114006740B CN114006740B CN202111248664.6A CN202111248664A CN114006740B CN 114006740 B CN114006740 B CN 114006740B CN 202111248664 A CN202111248664 A CN 202111248664A CN 114006740 B CN114006740 B CN 114006740B
- Authority
- CN
- China
- Prior art keywords
- equipment
- account
- public key
- hardware
- signature data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007726 management method Methods 0.000 title claims abstract description 20
- 238000012795 verification Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000013507 mapping Methods 0.000 claims abstract description 5
- 238000003860 storage Methods 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- H04L63/12—Applying verification of the received information
- H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
-
- 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
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computer And Data Communications (AREA)
Abstract
The invention discloses a management method and application of digital identity of Internet of things equipment based on a blockchain. The device generates a device hardware account and the device user generates a device user account, the account comprising a pair of public and private keys. The device user signs the public key of his account and sends it to the device. And the device performs signature verification, and if the signature verification is passed, the device signs the device hardware account public key and the device user account public key and sends the signature to the intelligent contract. And after signing the contract, storing the two public keys according to a one-to-one mapping relation. When a device user wants to send a message to the device, the device user's account private key is used to sign the message and the account public key, and the signature and the original text are sent to the smart contract. After the signature verification passes, the intelligent closing date passes through the one-to-one mapping relation of the two accounts, finds out the corresponding equipment hardware account, and sends the message to the corresponding equipment. The process of the device sending a message to the device user is the same.
Description
Technical Field
The invention belongs to the technical field of security authentication, and particularly relates to a management method and application of digital identity of Internet of things equipment based on a blockchain.
Background
In recent years, with the continuous development of technologies such as 5G and cloud computing, the internet of things technology is attracting more attention. The internet of things technology has the characteristics of huge scale, complex structure, high cost limit and the like, so that the safety problem of the internet of things is very troublesome. The identity authentication problem is the key to solving the security problem of the internet of things, and the traditional internet of things identity authentication generally assumes that a server and a device terminal communicate through a secure channel and is managed by adopting a centralized architecture in most cases. However, such an authentication mode generally involves transmission of sensitive information, for example, the user password needs to be transmitted for account password login, and as long as the sensitive information is transmitted, there is a risk of disclosure of the sensitive information. The centralized architecture results in irreparable loss of sensitive information once tampered with.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art and provides a management method and application of digital identities of equipment of the Internet of things based on a blockchain.
The aim of the invention is realized by the following technical scheme: a management method of the digital identity of the Internet of things equipment based on a blockchain is applicable to equipment terminals, control equipment of equipment users and servers running blockchain nodes. The method mainly comprises the following steps of:
the device generates a device hardware account by itself through the running program, the account contains a pair of public and private keys, and stores the device hardware account private key information by itself.
The device user generates a device user account by itself, the account contains a pair of public and private keys, and stores device user account private key information by itself.
The device user account private key used by the device user digitally signs the device user account public key of the device user account private key pair to generate signature data. And sending the public key of the account of the user of the equipment and the signature data to the equipment. The device uses the device user account public key to sign the signature data. And if the signature verification is successful, the device uses the device hardware account private key to digitally sign the device user account public key and the device hardware account public key to generate signature data. And sending the equipment hardware account public key, the equipment user account public key and the signature data to the blockchain node for binding.
When binding is carried out, the intelligent contract running in the blockchain node uses the public key of the equipment hardware account to check signature data, if the signature check passes, the public key of the equipment hardware account and the public key of the equipment user account are stored, and a one-to-one mapping relation is kept between the public key of the equipment hardware account and the public key of the equipment user account. Otherwise, no binding is performed.
After successful binding, the digital identity can be used for information transmission. The device hardware account, the device user account, and the binding relationship therebetween together constitute the digital identity of the device.
When the equipment user sends information to the equipment, the equipment user account private key is used for signing the information original text and the equipment user account public key to generate signature data, and the equipment information original text, the signature data and the user account public key are sent to the blockchain node. The intelligent contract running on the node verifies the signature information, and if the signature information can pass the verification, the information is sent to the corresponding device through the public key of the account of the device user and the binding relation.
When the equipment sends information to the equipment user, the equipment hardware account private key is used for signing the information original text and the equipment hardware account public key to generate signature data, and the equipment information original text, the signature data and the hardware account public key are sent to the blockchain node. The intelligent contract verifies the signature information, and if the signature information can pass the verification, the intelligent contract sends the information to the corresponding user through the binding relationship between the public key of the equipment and the prior public key.
A management system of digital identities of Internet of things equipment based on a blockchain comprises equipment terminals, control equipment of equipment users, a server for running intelligent contracts and connection between the equipment terminals and the server for running the intelligent contracts.
And the equipment terminal running program generates an equipment hardware account and stores a public and private key of the equipment hardware account. And the equipment terminal uses the public account key of the equipment user to check signature data sent by the control equipment of the equipment user. And the equipment terminal uses the equipment hardware account private key to digitally sign the equipment user account public key and the equipment hardware account public key to generate signature data. And sending the equipment hardware account public key, the equipment user account public key and the signature data to a server where the intelligent contract is located.
And the control equipment running program of the equipment user generates an equipment user account and stores the public and private keys of the equipment user account. The control equipment used by the equipment uses the private key of the account of the equipment user, signs the public key of the account of the equipment user, generates signature data, and sends the public key of the account of the equipment user and the signature data to the equipment terminal.
The server running the smart contract is mainly used for executing the smart contract and storing the content to be stored in the smart contract.
A management device for digital identity of an Internet of things device based on a blockchain comprises a memory and a processor. The memory stores account creation program of digital identity running on the processor, communication with block chain node and cryptography related program, creation program, communication with block chain node and cryptography related program, and the above-mentioned digital identity creation and application method can be implemented when executing.
A computer readable storage medium, on which an account creation program of a digital identity executable on a processor, a program related to cryptography and communicating with a block link point, and a program related to cryptography and communicating with a block link point are stored, and when executed by the processor, the method for creating and using a digital identity is realized.
The beneficial effects of the invention are as follows: the control equipment of the equipment terminal and the equipment user respectively generate a blockchain account and store the account private key by themselves, so that the transmission of sensitive information such as the private key is reduced to the greatest extent, the safety of the system is enhanced, and the possibility of leakage of the private key is reduced. Meanwhile, binding information of the two accounts is uploaded to the blockchain, and identity conversion is carried out by utilizing intelligent contracts operated in the blockchain nodes when digital identities are used, so that the credibility of the blockchain can be fully utilized, the binding relationship is not easy to tamper, and the reliability of the binding relationship is enhanced. Meanwhile, the two accounts are respectively and independently generated, and the production and use processes of the equipment are decoupled, so that the flexibility of the production and use of the equipment of the Internet of things is enhanced.
Drawings
Embodiments of the present invention will now be described more fully with reference to the accompanying drawings. The drawings, however, are for illustration and description only and are not intended as a definition of the limits of the invention;
FIG. 1 is a flow chart of binding a device user account with a device hardware account in the present invention;
FIG. 2 is a flow chart of a control device of a device user sending information to a device terminal according to the present invention;
FIG. 3 is a flow chart of a device terminal sending information to a device user's control device in the present invention;
FIG. 4 is a schematic diagram of a management system for digital identity of a blockchain-based Internet of things device according to the present invention;
fig. 5 is a schematic diagram of a management device for digital identity of an internet of things device based on a blockchain in the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
The invention discloses a management method of digital identities of Internet of things equipment based on a blockchain, which comprises the following steps:
as shown in fig. 1, the binding device user account and the device hardware account are specifically:
step B1: the equipment user control equipment generates an equipment user account by running a program and stores private key information of the equipment user account.
Step B2: the equipment terminal generates an equipment hardware account by itself through an operation program and stores private key information of the equipment hardware account by itself.
Step B3: the device user account public key is digitally signed using the device user account private key to generate signature data.
Step B4: and sending the equipment user, the account public key and the signature data to the equipment terminal.
Step B5: the device terminal uses the device user account public key to perform signature verification. If the signature verification fails, the process is terminated.
Step B6: and if the signature verification is successful, the equipment terminal uses the equipment hardware account private key to digitally sign the equipment user account public key and the equipment hardware account public key to generate signature data.
Step B7: and sending the device hardware account public key, the device user account public key and signature data to the intelligent contract for binding.
Step B8: the intelligent contract uses the public key of the hardware account of the equipment to check signature data, and if the signature checking fails, the process is terminated.
Step B9: and if the signature verification is successful, the public key of the equipment hardware account and the public key of the equipment user account are stored, and a one-to-one mapping relation is kept between the public keys. The digital identity creation is completed.
As shown in fig. 2, the control device of the device user uses the device digital identity to send a message to the device, specifically:
step U1: the device user control device reads the stored device user account private key information from the memory.
Step U2: and signing the information original text by using the private key of the account of the equipment user and the public key of the account of the equipment user to generate signature data.
Step U3: and sending the device information text, the signature data and the device user account public key to the blockchain node.
Step U4: the intelligent contract run by the block link point will be signed using the device user account public key. If the signature verification fails, the process is terminated.
Step U5: if the signature verification is successful, the information is sent to the corresponding equipment terminal through the account public key of the equipment user and the binding relation.
As shown in fig. 3, the device terminal uses the device digital identity to send a message to the control device of the device user, specifically:
step D1: and the equipment terminal reads the equipment hardware account private key information stored in the memory.
Step D2: and signing the information original text and the public key of the equipment hardware account by using the private key of the equipment hardware account to generate signature data.
Step D3: and the equipment terminal sends the equipment information text, the signature data and the equipment hardware account public key to the blockchain node.
Step D4: the intelligent contract run by the block link point will be signed using the device hardware account public key. If the signature verification fails, the process is terminated.
Step D5: and if the signature verification is successful, the information is sent to the corresponding user through the public key of the hardware account of the device and the binding relation.
It should be noted that in other embodiments, the steps of the corresponding method are not necessarily performed in the order shown and described in the present specification. In some other embodiments, the method may include more or fewer steps than described in this specification. Furthermore, individual steps described in this specification, in other embodiments, may be described as being split into multiple steps; while various steps described in this specification may be combined into a single step in other embodiments.
For example, step B1 and step B2 of creating a digital identity may be exchanged for a sequence without affecting the implementation of the instance.
In the above embodiment, the control devices of the device terminal and the device user respectively generate a blockchain account and store the account private key by themselves, so as to reduce the transmission of sensitive information such as the private key to the greatest extent, enhance the security of the system, and reduce the possibility of leakage of the private key. Meanwhile, binding information of the two accounts is uploaded to the blockchain, and identity conversion is carried out by utilizing intelligent contracts operated in the blockchain nodes when digital identities are used, so that the credibility of the blockchain can be fully utilized, the binding relationship is not easy to tamper, and the reliability of the binding relationship is enhanced. Meanwhile, the production and the use of the equipment are decoupled, so that the flexibility of the equipment of the Internet of things is enhanced.
In the above embodiment, the generation of the blockchain account uses an asymmetric encryption technique to generate the public key and the private key, and the public key may be public. When signature data is generated, firstly, the information to be signed is hashed, and the digest is encrypted by using a private key, so that the ciphertext is the signature data. And in the process of signature verification, decrypting the signature data by using a public key corresponding to a private key used for encryption to obtain a summary 1, and then hashing the received information text to obtain a summary 2, wherein if the two summaries are consistent in content, the signature verification is proved to be successful, otherwise, the signature verification is failed.
The invention relates to a management system of digital identity of equipment of the Internet of things based on a blockchain, which is shown in fig. 4, and comprises equipment user control equipment 1, a server 2 for running nodes of the blockchain and equipment terminals 3.
The device user control device 1 runs a program to generate a device user account and stores a public and private key of the device user account. The control device used by the device uses the private key of the account of the device user, signs the public key of the account of the device user, generates signature data, and sends the public key of the account of the device user and the signature data to the device terminal 3.
The device terminal 3 runs a program to generate a device hardware account and stores the public and private keys of the device hardware account. The device terminal 3 uses the device user account public key to check the signature data sent by the device user control device 1. The device terminal 3 digitally signs the device user account public key and the device hardware account public key by using the device hardware account private key, and generates signature data. And sending the device hardware account public key, the device user account public key and the signature data to a server 2 of a node running a blockchain where the intelligent contract is located.
The server 2 running the nodes of the blockchain is mainly used for executing the smart contracts and storing the content to be stored in the smart contracts.
In the above embodiment, the device terminal may be an intelligent device such as an intelligent water meter, an intelligent thermometer, an intelligent ammeter, and an intelligent sign-in machine.
In the above embodiment, the control device of the device user may be an intelligent device such as a smart phone, a tablet computer, or a personal computer.
In the above embodiment, the device terminal may employ communication, storage and calculation modules such as a chip, a power supply, an antenna, etc. implanted into the conventional device, so that the conventional device can perform data storage calculation and communication with the outside using these modules.
In the above embodiment, the server running the blockchain node may perform information transfer with the control device of the device terminal and the device user through various protocols such as HTTP/HTTPs, MQTT, or the like, or by relying on a device such as a router, bluetooth, or the like.
The invention relates to a management device for digital identity of an Internet of things device based on a blockchain, which is shown in fig. 5, and comprises a processor 4 and a memory 5, wherein a digital identity creation program, a blockchain node communication program and a cryptography-related program 6 which can run on the processor 4 are stored in the memory 5, and the digital identity creation and use method is realized when the program is executed by the processor.
The invention relates to a computer readable storage medium, which stores a digital identity creation program which can run on a processor, a program which communicates with a block chain link point server and a cryptography calculation program, wherein the program realizes the digital identity creation and use method when being executed by the processor.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included in the scope of the present invention.
Claims (7)
1. The management method of the digital identity of the equipment of the Internet of things based on the blockchain is characterized by being suitable for equipment terminals, control equipment of equipment users and a server for running blockchain nodes, and comprises the following steps:
the equipment terminal generates an equipment hardware account by itself, and the control equipment of the equipment user generates an equipment user account by itself, wherein the equipment user account comprises a pair of public and private keys and stores own private key information respectively;
the control equipment of the equipment user uses the private key of the equipment user account to digitally sign the public key of the equipment user account so as to generate first signature data; transmitting the device user account public key and the first signature data to the device terminal; the equipment terminal uses the public key of the account of the equipment user to check the first signature data; if the signature verification is successful, the equipment terminal uses the equipment hardware account private key to digitally sign the equipment user account public key and the equipment hardware account public key to generate second signature data; transmitting the equipment hardware account public key, the equipment user account public key and the second signature data to an intelligent contract for binding;
when the control equipment of the equipment user sends information to the equipment terminal, signing an information original text and the public key of the account of the equipment user by using the private key of the account of the equipment user, generating third signature data, and sending the information original text, the third signature data and the public key of the account of the user to an intelligent contract; the intelligent contract uses the public key of the user account to verify the third signature data, and if the third signature data can pass the verification, the intelligent contract sends information to the corresponding equipment terminal through the previous binding relationship;
when the equipment terminal sends information to the control equipment of the equipment user, signing an information original text and the equipment hardware account public key by using the equipment hardware account private key to generate fourth signature data, and sending the information original text, the fourth signature data and the hardware account public key to an intelligent contract; and the intelligent contract uses the hardware account public key to verify the fourth signature data, and if the verification can be passed, the intelligent contract sends the information to the control equipment of the corresponding equipment user through the previous binding relation.
2. The blockchain-based management method of digital identities of internet of things devices of claim 1, wherein the device hardware account and the device user account are blockchain accounts.
3. The blockchain-based management method of digital identities of internet of things devices of claim 1, wherein sending the device hardware account public key, the device user account public key, and the second signature data to a smart contract for binding comprises: when binding is carried out, the intelligent contract uses the public key of the equipment hardware account to check the signature of the second signature data, if the signature passes, the public key of the equipment hardware account and the public key of the equipment user account are stored, and a one-to-one mapping relation is kept between the public key of the equipment hardware account and the public key of the equipment user account, so that the binding is completed; if the verification sign does not pass, the binding is not performed.
4. The blockchain-based management method of the digital identity of the internet of things device according to claim 3, wherein the device hardware account private key and the device user account private key are stored in respective storage media;
and the server running the intelligent contract stores the binding relation between the device hardware account public key and the device user account public key into a storage medium of the server.
5. A management system for digital identity of a blockchain-based internet of things device implementing the method of any of claims 1-4, comprising a device terminal, a control device for a device user, and a server running a smart contract;
the method comprises the steps that a device terminal generates a device hardware account and stores a public and private key of the device hardware account; the method comprises the steps that a device terminal uses a device user account public key to check first signature data sent by control equipment of a device user; the equipment terminal uses the equipment hardware account private key to digitally sign the equipment user account public key and the equipment hardware account public key to generate second signature data; transmitting the device hardware account public key, the device user account public key and the second signature data to a server where the intelligent contract is located;
the control equipment of the equipment user generates an equipment user account and stores a public and private key of the equipment user account; the control equipment of the equipment user uses the equipment user account private key to sign the equipment user account public key to generate first signature data, and sends the equipment user account public key and the first signature data to the equipment terminal;
the server is mainly used for executing intelligent contracts and storing contents to be stored in the intelligent contracts.
6. A management device for digital identity of an internet of things device based on a blockchain, comprising a memory and a processor, wherein the memory stores a computer program, and when executed, implements the management method for digital identity of an internet of things device based on a blockchain as set forth in any one of claims 1-4.
7. A computer readable storage medium having stored thereon a computer program executable on a processor; the computer program, when executed by the processor, implements a method for managing digital identities of blockchain-based internet of things devices as defined in any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111248664.6A CN114006740B (en) | 2021-10-26 | 2021-10-26 | Management method and application of digital identity of Internet of things equipment based on blockchain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111248664.6A CN114006740B (en) | 2021-10-26 | 2021-10-26 | Management method and application of digital identity of Internet of things equipment based on blockchain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114006740A CN114006740A (en) | 2022-02-01 |
| CN114006740B true CN114006740B (en) | 2024-02-09 |
Family
ID=79924186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111248664.6A Active CN114006740B (en) | 2021-10-26 | 2021-10-26 | Management method and application of digital identity of Internet of things equipment based on blockchain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114006740B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110659470A (en) * | 2019-09-23 | 2020-01-07 | 四川虹微技术有限公司 | Authentication method and authentication system for off-line physical isolation |
| WO2020056597A1 (en) * | 2018-09-18 | 2020-03-26 | 王健 | Item identity management method, terminal, micro-processing unit, identification device and system |
| CN112118245A (en) * | 2020-09-10 | 2020-12-22 | 中国联合网络通信集团有限公司 | Key management method, system and equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11107088B2 (en) * | 2016-05-27 | 2021-08-31 | Chronicled, Inc. | Open registry for internet of things |
| US10382485B2 (en) * | 2016-12-23 | 2019-08-13 | Vmware, Inc. | Blockchain-assisted public key infrastructure for internet of things applications |
-
2021
- 2021-10-26 CN CN202111248664.6A patent/CN114006740B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020056597A1 (en) * | 2018-09-18 | 2020-03-26 | 王健 | Item identity management method, terminal, micro-processing unit, identification device and system |
| CN110659470A (en) * | 2019-09-23 | 2020-01-07 | 四川虹微技术有限公司 | Authentication method and authentication system for off-line physical isolation |
| CN112118245A (en) * | 2020-09-10 | 2020-12-22 | 中国联合网络通信集团有限公司 | Key management method, system and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114006740A (en) | 2022-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111083131B (en) | Lightweight identity authentication method for power Internet of things sensing terminal | |
| CN104753917B (en) | Key management system and method based on ID | |
| CN110958111B (en) | Block chain-based identity authentication mechanism of electric power mobile terminal | |
| Park et al. | BPPS: Blockchain-enabled privacy-preserving scheme for demand-response management in smart grid environments | |
| CN105577383B (en) | The management of cryptographic key | |
| CN105208024B (en) | Without using the data safe transmission method and system of HTTPS, client and server-side | |
| CN113783836A (en) | Internet of things data access control method and system based on block chain and IBE algorithm | |
| CN104580189A (en) | Safety communication system | |
| Babu et al. | A distributed identity‐based authentication scheme for internet of things devices using permissioned blockchain system | |
| CN108964892B (en) | Generation method, application method, management system and the application system of trusted application mark | |
| CN104639534A (en) | Website safety information uploading method and browser device | |
| CN106464496A (en) | Method and system for creating a certificate to authenticate a user identity | |
| CN101383707A (en) | Light-weight authentication system and key algorithm | |
| Shao et al. | IBE-BCIOT: an IBE based cross-chain communication mechanism of blockchain in IoT | |
| CN109981287A (en) | A kind of code signature method and its storage medium | |
| CN112804356A (en) | Block chain-based networking equipment supervision authentication method and system | |
| Zhao et al. | A novel decentralized cross‐domain identity authentication protocol based on blockchain | |
| Babu et al. | Fog‐Sec: Secure end‐to‐end communication in fog‐enabled IoT network using permissioned blockchain system | |
| CN114154181A (en) | Privacy calculation method based on distributed storage | |
| CN110225028A (en) | A kind of distribution anti-counterfeiting system and its method | |
| EP2673915A1 (en) | Using a single certificate request to generate credentials with multiple ecqv certificates | |
| Parameswarath et al. | Privacy-Preserving User-Centric Authentication Protocol for IoT-Enabled Vehicular Charging System Using Decentralized Identity | |
| CN114006740B (en) | Management method and application of digital identity of Internet of things equipment based on blockchain | |
| CN109005029B (en) | Trusted application mark generation method and system, application method and apply end equipment | |
| Cao et al. | A scheme for verification on data integrity in mobile multicloud computing environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |