WO2020056597A1

WO2020056597A1 - Item identity management method, terminal, micro-processing unit, identification device and system

Info

Publication number: WO2020056597A1
Application number: PCT/CN2018/106287
Authority: WO
Inventors: 王健; 谢辉
Original assignee: 王健
Priority date: 2018-09-18
Filing date: 2018-09-18
Publication date: 2020-03-26
Also published as: CN112689979A; CN112689979B

Abstract

Provided are an item identity management method, a terminal, a micro-processing unit, an identification device and a system. The method comprises: providing a micro-processing chip in an item, driving, by means of an identification device, a micro-processing unit to generate a public key and a private key of the item, and sending, by means of the identification device, the public key of the item to a blockchain and saving same. When a terminal performs identity validity recognition on the item, a micro-processing unit in the item uses a private key, stored in the micro-processing unit, of the item to perform a digital signature on target information and sends same to the terminal, and the terminal verifies a received signature according to a public key, acquired on a blockchain, of the item, and thus, the validity of identity information, recorded in the micro-processing unit, of the item can be determined. The present disclosure can avoid the problem of the identity being forged or indiscriminately used, will not increase the learning cost of item receivers in terms of anti-counterfeiting and recognition, and can avoid the problem of errors caused by centralized true and false adjudication.

Description

Article identity management method, terminal, micro processing unit, identification device and system

Technical field

The present disclosure relates to the technical field of article management, and in particular, to an article identity management method, terminal, micro-processing unit, identification device, and system.

Background technique

In production life, it is inevitable to verify the authenticity of certain goods / items. Existing conventional anti-counterfeiting methods are nothing more than increasing the difficulty and cost of counterfeiting, and these methods can gradually fail over time and scientific and technological progress. And every time a new product and corresponding identity confirmation method appear, its promotion takes time and economic cost, and the relevant audience needs to relearn how to identify the identity of the item, which will consume a lot of social resources, lacking a kind of Long-term once and for all approach.

In addition, because the current item identification and anti-counterfeiting methods generally use the release management of the article or commodity to ultimately determine its authenticity, and because it uses a centralized determination method, there is no effective way to eliminate man-made or non-man-made things that may occur to the management error. In addition, even if the improvement of anti-counterfeiting methods makes it difficult to counterfeit, the problem of identity application cannot be avoided, such as the use of genuine packaging for fakes.

Therefore, how to provide an identity management mechanism that can not forge or apply identities and avoid mistakes in the management process without increasing the learning cost of the audience of items or goods is an urgent problem to be solved.

Summary of the Invention

In order to overcome the above problems, the present disclosure provides an article identity management method, terminal, micro-processing unit, identification device, and system.

To achieve the above object, a first aspect of the present disclosure provides a method for managing an article identity, which is applied to a terminal, and the method includes:

Receiving a first signature of target information sent by a micro-processing unit in a first item, the first signature is the micro-processing unit using the private key of the first item stored in the micro-processing unit to pair the target The information is obtained after digitally signing the information;

The public key of the first item obtained from the blockchain;

The validity of the first identity information of the first item recorded in the micro-processing unit is determined by verifying the first signature by using the public key of the first item.

Optionally, the receiving the first signature of the target information sent by the micro-processing unit in the first item, the first signature is the micro-processing unit using the first item stored in the micro-processing unit. The private key obtained after digitally signing the target information includes:

Generating the target information, where the target information includes a random number;

Sending the target information to the micro processing unit;

After the micro processing unit digitally signs the target information by using the private key of the first item, the micro processing unit receives the first signature sent by the micro processing unit.

After the micro processing unit generates the target information and digitally signs the target information by using the private key of the first item, receiving the first signature and the target information sent by the micro processing unit ; Wherein the target information includes a random number or identity information of the first item.

Optionally, the method further includes:

Acquiring the first identity information of the first item from the micro processing unit;

Querying in the blockchain according to the first identity information to obtain the second identity information of the first item from the blockchain;

Receiving the second signature of the first identity information sent by the microprocessing unit, where the second signature is after the microprocessing unit digitally signs the first identity information by using the private key of the first item owned;

Determining whether the first identity information is authentic by verifying the second signature by using the public key of the first item and the second identity information;

When it is determined that the first identity information is true, data update information is sent to the blockchain, and the data update information is used by the blockchain to update an identity use state of the first item to a used state.

Optionally, the method further comprises: performing a query in the blockchain again according to the first identity information to obtain the identity usage status of the first item from the blockchain;

When the identity use status of the first item obtained from the blockchain is used status, the first item is identified as the item identity used.

Optionally, when the terminal is located at the first node on the circulation of the first article, the target information is identification information of the first article, and the first signature is used by the microprocessing unit. Said method is obtained by digitally signing said identification information by said private key of said first item, said method further comprising:

Digitally signing the first signature by using the private key of the terminal to obtain a second signature;

Sending the first signature and the second signature to the blockchain to store the first signature and the second signature in the blockchain.

Optionally, when the terminal is a terminal of an intermediate node on the first article circulation link, the method further includes:

Receiving a third signature sent by a previous node device in the first article circulation link;

Obtaining a fourth signature by digitally signing the third signature by using the private key of the terminal;

Sending the third signature and the fourth signature to the blockchain so that the third signature and the fourth signature are stored in the blockchain.

Optionally, the method further includes: generating an information update request for the first item, where the information update request is used to update the information of the first item stored on the blockchain, and the first The information of an item includes the first identity information and / or attribute information;

Obtaining a fifth signature by digitally signing the information update request by using the private key of the terminal;

Sending the information update request and the fifth signature to the blockchain for smart contracts on the blockchain to verify the fifth signature through the public key of the terminal, and pass the verification Then, the information of the first item on the blockchain is updated according to the information update request, and the update operation includes at least one of the following: information addition, information deletion, information modification, and / or information abolition.

In a second aspect, an article identity management method is provided, which is applied to a micro-processing unit, the method includes:

Digitally signing target information by using a private key of a first item stored in the micro processing unit to obtain a first signature of the target information, where the first item is an item in which the micro processing unit is located;

Sending the first signature to a terminal for the terminal to determine the recorded in the micro-processing unit by using the public key of the first item obtained from the blockchain to verify the first signature Validity of the first identity information of the first item.

Optionally, obtaining the first signature of the target information by digitally signing the target information by using the private key of the first item stored in the micro processing unit includes:

Receiving the target information generated by the terminal and sent by the terminal, where the target information includes a random number;

The first signature is obtained by digitally signing the target information by using the private key of the first item.

Generating the target information, where the target information includes a random number or identity information of the first item;

Optionally, the method further includes:

Sending the first identity information of the first item to the terminal for the terminal to query in the blockchain according to the first identity information;

Digitally sign the first identity information by using the private key of the first item to obtain a second signature of the first identity information;

Sending the second signature to the terminal, for the terminal to obtain the second identity information of the first item from the blockchain by using the public key of the first item and the The second identity information verifies the second signature to determine whether the first identity information is authentic.

Optionally, before the digitally signing the target information by using the private key of the first item stored in the micro processing unit, the method further includes:

Generating the public key and the private key of the first item under the driving of the labeling device;

The private key of the first item and the first identity information of the first item are stored locally in the micro processing unit.

Optionally, the method further includes: setting a private key of the first item stored locally in the micro processing unit to prohibit external devices from reading and writing.

According to a third aspect, an article identity management method is provided, which is applied to a tagging device, the method comprising: driving a micro processing unit in a first article to generate a public key and a private key of the first article;

Upload the public key of the first item to the blockchain.

In a fourth aspect, a terminal is provided, including:

A first receiving module, configured to receive a first signature of target information sent by a micro-processing unit in a first item, where the first signature is the micro-processing unit using the first item stored in the micro-processing unit Obtained by digitally signing the target information with a private key of

A first obtaining module, configured to obtain a public key of the first item from a blockchain;

A first verification module is configured to determine the validity of the first identity information of the first item recorded in the micro-processing unit by verifying the first signature by using the public key of the first item.

Optionally, the receiving module is configured to:

Sending the target information to the micro processing unit;

Optionally, the receiving module is configured to:

Optionally, the terminal further includes:

A second acquisition module, configured to acquire the first identity information of the first item from the micro processing unit;

A query module, configured to perform a query in the blockchain according to the first identity information to obtain second identity information of the first item from the blockchain;

The first receiving module is further configured to receive a second signature of the first identity information sent by the microprocessing unit, where the second signature is a private key pair used by the microprocessing unit to use the first item Obtained by digitally signing the first identity information;

A second verification module, configured to determine whether the first identity information is authentic by verifying the second signature by using the public key of the first item and the second identity information;

A first update module, configured to: when it is determined that the first identity information is true, send data update information to the blockchain, the data update information being used by the blockchain to use the identity status of the first item Updated to Used.

Optionally, the terminal further includes:

The query module is further configured to query the blockchain again according to the first identity information to obtain the identity usage status of the first item from the blockchain;

An identification module, configured to identify the first item as the used item identity when the status of the use of the identity of the first item obtained from the blockchain is used.

Optionally, the terminal is a first node located on the first item circulation link, the target information is identification information of the first item, and the first signature is the micro processing unit using the It is obtained by digitally signing the identification information with the private key of the first item, and the terminal further includes:

A signature module, configured to digitally sign the first signature by using the private key of the terminal to obtain a second signature;

A sending module is configured to send the first signature and the second signature to the blockchain, so that the first signature and the second signature are stored in the blockchain.

Optionally, the terminal is a terminal of an intermediate node in the first article circulation link, and the terminal further includes:

A second receiving module, configured to receive a third signature sent by a previous node device in the first article circulation link;

A signature module, configured to digitally sign the third signature by using the private key of the terminal to obtain a fourth signature;

A sending module, configured to send the third signature and the fourth signature to the blockchain, so that the third signature and the fourth signature are stored in the blockchain.

Optionally, the apparatus further includes:

A second update module, configured to generate an information update request for the first item, where the information update request is used to update the information of the first item stored on the blockchain, The information includes the first identity information and / or attribute information;

A signature module, configured to digitally sign the information update request by using the private key of the terminal to obtain a fifth signature;

A sending module, configured to send the information update request and the fifth signature to the blockchain, and be used by a smart contract on the blockchain to verify the fifth signature through the public key of the terminal And, after passing the verification, perform an update operation on the information of the first item on the blockchain according to the information update request, the update operation includes at least one of the following: information addition, information deletion, information modification, and / Or the information is discontinued.

In a fifth aspect, a microprocessing unit is provided, including:

A signature module, configured to digitally sign target information by using a private key of a first item stored in the micro processing unit to obtain a first signature of the target information, where the first item is where the micro processing unit is located Items

A sending module, configured to send the first signature to a terminal, for the terminal to determine the micro signature by verifying the first signature by using a public key of the first item obtained from a blockchain Validity of the first identity information of the first item recorded in the processing unit.

Optionally, the signature module is configured to:

Optionally, the signature module is configured to generate the target information, where the target information includes a random number or identity information of the first item;

Optionally, it further comprises: a sending module, configured to send the first identity information of the first item to the terminal for the terminal to query in the blockchain according to the first identity information ;

The signature module is further configured to digitally sign the first identity information by using the private key of the first item to obtain a second signature of the first identity information;

The sending module is further configured to send the second signature to the terminal for the terminal to obtain the second identity information of the first item from the blockchain by using the first signature A public key of an item and the second identity information verify the second signature to determine whether the first identity information is authentic.

Optionally, it further comprises: a generating module, configured to generate the first information under the drive of a labeling device before digitally signing the target information by using the private key of the first item stored in the micro processing unit. The public and private keys of the item;

The storage module is configured to store a private key of the first item and the first identity information of the first item locally in the micro processing unit.

Optionally, it further includes a setting module, configured to set a private key of the first item stored locally in the micro processing unit to prohibit external devices from reading and writing.

According to a sixth aspect, a marking device is provided, including:

A generating module for driving a micro-processing unit in the first item to generate a public key and a private key of the first item;

An uploading module is used to upload the public key of the first item to the blockchain.

According to a seventh aspect, a computer-readable storage medium is provided, on which a computer program is stored, characterized in that when the computer program is executed by a processor, the steps of the method according to the first aspect are implemented.

An eighth aspect provides a terminal, including:

A memory on which a computer program is stored;

A processor, configured to execute the computer program in the memory to implement the steps of the method according to the first aspect.

In a ninth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, implements the steps of the method in the second aspect.

In a tenth aspect, a microprocessing unit is provided, including:

A memory on which a computer program is stored;

A processor, configured to execute the computer program in the memory to implement the steps of the method according to the second aspect.

According to an eleventh aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method according to the third aspect are implemented.

In a twelfth aspect, a microprocessing unit is provided, including:

A memory on which a computer program is stored;

A processor, configured to execute the computer program in the memory to implement the steps of the method according to the third aspect.

According to a thirteenth aspect, an article management system is provided, including: a terminal, a micro-processing unit located in the article, and an identification device;

The terminal is configured to implement the steps of the method according to the first aspect;

The micro processing unit is configured to implement the steps of the method according to the second aspect;

The identification device is configured to implement the steps of the method according to the third aspect.

In the above technical solution, by providing a micro-processing unit in the article, the micro-processing unit can be driven by the tagging device to generate the public and private keys of the article, and the public key of the article is sent to the blockchain for storage via the tagging device. When the terminal performs identification of the item's identity, the micro-processing unit in the item can use the private key of the item stored in the micro-processing unit to digitally sign the target information and send it to the terminal, so that the terminal according to the blockchain The public key of the item obtained on the Internet is used to verify the received signature, so that the validity of the identity information of the item recorded in the micro processing unit can be determined. Because the public key of the item is stored in the blockchain by the tagging device, the item and its corresponding public key have an untamperable binding relationship, and the private key of the item is set in the microprocessing unit in the item, which is difficult when the item is complete The micro processing unit is easy to obtain, so the problem of identity forgery or application can be avoided, and when verifying, only the terminal and the item of the blockchain can be accessed, and no additional knowledge or additional equipment is required. Therefore, the learning cost of the object audience in anti-counterfeit identification will not be increased. In addition, because the verification method based on the blockchain is used, it is possible to avoid errors caused by the centralized authentication method.

Other features and advantages of the present disclosure will be described in detail in the detailed description section that follows.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic flowchart of an article identity management method according to an exemplary embodiment of the present disclosure.

Fig. 2 is a schematic flowchart of an article identity management method according to an exemplary embodiment of the present disclosure.

FIG. 3 is a schematic flowchart of another article identity management method according to the embodiment shown in FIG. 1.

FIG. 4 is a schematic flowchart of another article identity management method according to the embodiment shown in FIG. 2.

Fig. 5 is a schematic flowchart of another article identity management method according to an exemplary embodiment of the present disclosure.

Fig. 6a is a schematic flowchart of another article identity management method according to an exemplary embodiment of the present disclosure.

Fig. 6b is a schematic flowchart of another article identity management method according to an exemplary embodiment of the present disclosure.

Fig. 7 is a schematic diagram of a commodity circulation link according to an exemplary embodiment of the present disclosure.

Fig. 8 is a schematic flowchart of another article identity management method according to an exemplary embodiment of the present disclosure.

Fig. 9 is a schematic flowchart of an article identity management method according to an exemplary embodiment of the present disclosure.

FIG. 10 is a schematic flowchart of another article identity management method according to the embodiment shown in FIG. 9.

FIG. 11 is a schematic flowchart of another article identity management method according to the embodiment shown in FIG. 9.

Fig. 12 is a schematic flowchart of another article identity management method according to an exemplary embodiment of the present disclosure.

Fig. 13 is a block diagram showing a terminal according to an exemplary embodiment of the present disclosure.

Fig. 14 is a block diagram showing another terminal according to an exemplary embodiment of the present disclosure.

Fig. 15 is a block diagram showing still another terminal according to an exemplary embodiment of the present disclosure.

Fig. 16 is a block diagram showing still another terminal according to an exemplary embodiment of the present disclosure.

Fig. 17 is a block diagram showing still another terminal according to an exemplary embodiment of the present disclosure.

Fig. 18 is a block diagram showing still another terminal according to an exemplary embodiment of the present disclosure.

Fig. 19 is a block diagram showing a micro processing unit according to an exemplary embodiment of the present disclosure.

Fig. 20 is a block diagram showing another micro processing unit according to an exemplary embodiment of the present disclosure.

Fig. 21 is a block diagram showing a labeling device according to an exemplary embodiment of the present disclosure.

Fig. 22 is a structural diagram of an article management system according to an exemplary embodiment of the present disclosure.

Fig. 23 is a structural diagram of another article management system according to an exemplary embodiment of the present disclosure.

Fig. 24 is a structural diagram of an electronic device according to an exemplary embodiment of the present disclosure.

detailed description

Hereinafter, specific embodiments of the present disclosure will be described in detail with reference to the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the disclosure, and are not intended to limit the disclosure.

Fig. 1 is a schematic flowchart of an article identity management method according to an exemplary embodiment of the present disclosure. The method is applied to a labeling device. As shown in Fig. 1, the method includes the following steps:

In step 101, the micro processing unit in the first article is driven to generate a public key and a private key of the first article.

The first item may be any item or commodity, and the micro processing unit is disposed inside the first item. The micro processing unit may be installed in the first item in the following manner: After the first item is formed, the An installation method in which the first article can be physically removed before being removed. The micro processing unit may be a micro processing chip, which may include a microprocessor and an antenna / contact. For example, an applet for implementing the method may be installed inside the microprocessor, the applet may be used to generate a public-private key pair of the first item, or the function of the applet may also be implemented by hardware. For example, a hardware module for generating a public-private key pair of the first item is provided inside the microprocessor. The communication method between the micro processing unit and the terminal may adopt NFC (Near Field Communication). Taking NFC as an example, when the distance between the tagging device and the micro processing unit in the first item reaches the NFC communication distance, the tagging device can initiate a tagging (or registration) process, and the micro processing unit can be driven to generate the first A key pair for an item, including the public and private keys of the first item.

Step 102: After obtaining the public key of the first item from the micro processing unit, upload the public key of the first item to the blockchain.

Wherein, after the micro processing unit generates the public key and the private key of the first item, the marking device uploads the public key of the first item from the micro processing unit to the blockchain for storage, and the private key of the first item It is stored locally in the micro processing unit, and the private key of the first item stored in the micro processing unit may be set to prohibit external devices from reading and writing, and the micro processing unit may read the private key of the first item, The private key of the first item cannot be written.

Optionally, when the public key of the first item is uploaded to the blockchain, the identity information and attribute information of the first item may also be uploaded to the blockchain for storage. In addition to storing the private key of the first item, the micro-processing unit may also store the identity information and attribute information of the first item, and optionally, the identity information and attribute information of the first item may also be stored. Instead of uploading to the blockchain, it is only stored in the micro-processing unit of the first item. When the subsequent terminal for identifying the item verifies that the identity information of the first item is valid, the item can be obtained from the micro-processing unit Identity information, attribute information. The identification information and attribute information of the first item stored in the micro-processing unit may be sent to the micro-processing unit by the tagging device, or the micro-processing unit may be assembled for the first item by other devices. Write to the chip.

Fig. 2 is a schematic flowchart of an article identity management method according to an exemplary embodiment of the present disclosure. The method is applied to a terminal. As shown in Fig. 2, the method includes the following steps:

Step 201: Receive a first signature of target information sent by a micro-processing unit in a first item, where the first signature is the micro-processing unit using the private key of the first item stored in the micro-processing unit to perform the target information on the target information. Obtained after digital signature.

Step 202: Obtain the public key of the first item from the blockchain.

Step 203: Determine the validity of the first identity information of the first item recorded in the micro-processing unit by verifying the first signature by using the public key of the first item.

The first signature can be verified by the terminal through the original text of the target information and the public key of the first item obtained from the blockchain during verification. When the first signature passes the verification, the micro processing unit can be confirmed. When the first identity information of the first item recorded in the valid is valid, but the first signature fails to be verified, it is confirmed that the first identity information is invalid.

Because the public key of the item is stored in the blockchain by the tagging device, the item and its corresponding public key have an untamperable binding relationship, and the private key of the item is set in the microprocessing unit in the item, which is difficult when the item is complete The micro processing unit is easy to obtain, so the problem of identity forgery or application can be avoided, and when verifying, only the terminal and the item of the blockchain can be accessed, and no additional knowledge or additional equipment is required. Therefore, the learning cost of the object audience in anti-counterfeit identification will not be increased. In addition, because the verification method based on the blockchain is used, it is possible to avoid errors caused by the centralized authentication method.

In addition, the target information may be generated by the terminal and sent to the micro processing unit in the first item, or may be generated by the micro processing unit, or the information stored in the micro processing unit may be used as the target information. An example can be shown in Figures 3 and 4.

FIG. 3 is a schematic flowchart of another article identity management method according to the embodiment shown in FIG. 1. The method is applied to a terminal. As shown in FIG. 3, as described in step 201: receiving a micro-processing unit in a first article The step of sending the first signature of the target information may include:

In step 2011, the target information is generated, and the target information includes a random number.

Step 2012: Send the target information to the micro processing unit.

Step 2013: After the micro processing unit digitally signs the target information by using the private key of the first item, receive the first signature sent by the micro processing unit.

That is, the terminal randomly generates a random number, and then sends the random number to the micro processing unit in the first item. After the micro processing unit obtains the random number, it uses the private key pair of the first item stored in the micro processing unit. The random number can be digitally signed to obtain the first signature, and then the micro processing unit returns the first signature to the terminal for the terminal to verify the first signature.

FIG. 4 is a schematic flowchart of another article identity management method according to the embodiment shown in FIG. 2. The method is applied to a terminal. As shown in FIG. 4, step 201: receiving a micro-processing unit in a first article The step of sending the first signature of the target information may include:

In step 2014, after the micro processing unit generates the target information and digitally signs the target information by using the private key of the first item, the micro processing unit receives the first signature and the target information sent by the micro processing unit. The target information includes a random number or identity information of the first item.

For example, when the distance between the terminal and the micro-processing unit of the first item reaches the communication distance, and the verification is triggered, the micro-processing unit may generate a random number under the drive of the terminal, and use the stored in the micro-processing unit. The first signature is obtained by digitally signing the random number of the first item's private key, and then the microprocessing unit returns the first signature and the random number to the terminal for the terminal to verify the first signature. .

Alternatively, the micro processing unit may use existing information stored in the micro processing unit, such as the first identity information of the first item, and the micro processing unit may obtain the first identity information by digitally signing the first identity information using the first item ’s private key. The first signature, and then the micro processing unit returns the first signature to the terminal together with the random number.

Further, FIG. 5 is a schematic flowchart of another method for managing an item's identity according to an exemplary embodiment of the present disclosure. The method is applied to a terminal. The method provides a method for checking the authenticity of an item's identity, as shown in FIG. 5. As shown, the method also includes the following steps:

Step 204: Obtain the first identity information of the first item from the micro processing unit.

Step 205: Query in the blockchain according to the first identity information to obtain the second identity information of the first item from the blockchain.

That is, the first identity information stored in the micro-processing unit of the first item is first obtained, and the first identity information is used as a query basis to find the first item stored in the blockchain in the blockchain. The second identity information, which is stored in the blockchain by the identification device by the method shown in step 102, is the real identity information of the first item, so it can be used to verify the micro The authenticity of the first identity information in the processing unit.

Step 206: Receive a second signature of the first identity information sent by the microprocessing unit, where the second signature is obtained after the microprocessing unit digitally signs the first identity information by using the private key of the first item.

Step 207: Determine whether the first identity information is authentic by verifying the second signature by using the public key of the first item and the second identity information.

For example, when verifying the signature of a certain message, the original text of the message and the public key corresponding to the private key when signing are needed. Therefore, based on this principle, after the second identity information is acquired, the first identity information needs to be consistent with the second identity information, and then the second signature of the first identity information can pass verification. Therefore, if the second signature is verified using the public key of the first item, if the second signature can pass the verification, the first identity information can be determined to be authentic; otherwise, if the verification fails, the The first identity information is not real. In addition, before the micro processing unit sends the second signature, it may first confirm whether the terminal is an authorized terminal. By way of example, an authentication method for confirming whether the terminal is an authorized terminal may be implemented by, for example, a password, a secret key, or the like.

Step 208: When it is determined that the first identity information is true, send data update information to the blockchain, and the data update information is used by the blockchain to update the identity use status of the first item to a used status.

For example, in order to ensure that the items provided to the user are new, after performing the item query verification method shown in steps 204 to 207 for each item for the first time, step 208 may be performed, that is, the first item After the identity information is true or false, data update information needs to be sent to the blockchain in order to update the identity usage status of the first item to the used status in the blockchain.

For example, the first item is an electronic product, such as a mobile phone. When the terminal obtains the second signature of the first identity information of the mobile phone from the micro-processing unit in the mobile phone that is used to execute the above method, it retrieves the block from the block. Query the second identity information of the mobile phone on the chain and verify the second signature. When the verification is passed, it is confirmed that the first identity information is true, and the mobile phone is updated to be activated on the blockchain. The first identity information of the mobile phone may be information such as IMEI (International Mobile Equipment Identity), SN (Serial Number, serial number), and the like. Alternatively, the item may be a non-electronic product, such as a bottle of wine, and the first identity information may be an identification code of the bottle of wine (the identification code is unique). Traditional identification codes are mostly password-coated cards (commonly known as Attached to the product in the form of a scratch card), or placed inside the product packaging in the form of a two-dimensional code or a laser code. In this embodiment, the identification code can be stored in a micro-processing unit inside the bottle of wine. The verification method is the same as the above-mentioned mobile phone, and will not be described again.

Optionally, it may further include the following steps:

Step 209: Query the blockchain again according to the first identity information to obtain the identity usage status of the first item from the blockchain.

Step 210: When the status of using the identity of the first item obtained from the blockchain is used, the first item is identified as being used for the identity of the item.

That is, after the identity usage status of the first item is updated to the used status on the blockchain, a query is again performed in the blockchain based on the first identity information in order to confirm the identity of the first item in the blockchain. Whether the identity usage status was successfully updated to the used status. After it is determined that the identity usage status of the first item is successfully updated to the used status, the first item may be identified as the item identity used, for example, the first item is displayed as the item identity used on the identification page of the terminal.

Further, FIG. 6a is a schematic flowchart of another article identity management method according to an exemplary embodiment of the present disclosure. The method is applied to a terminal. When the terminal is located at the first node of the first article circulation link, The target information is identification information of the first item, and the first signature is obtained after the microprocessing unit digitally signs the identification information by using the private key of the first item. As shown in FIG. 6a, the method further includes The following steps:

Step 211: Digitally sign the first signature by using the private key of the terminal to obtain a second signature.

Step 212: Send the first signature and the second signature to the blockchain, so that the first signature and the second signature are stored in the blockchain.

In the future, if it is to verify whether the first item has passed the first node, the first signature and the second signature can be obtained from the end of the blockchain, and the second signature is verified by using the public key of the terminal. When the verification is passed, it can be confirmed that the first item and the first item circulation link have indeed passed the node where the terminal is located, that is, the first node. When the verification fails, it can be confirmed that the first item does not pass the first node.

Fig. 6b is a schematic flowchart of another article identity management method according to an exemplary embodiment of the present disclosure. The method is applied to a terminal. When the terminal is a terminal of an intermediate node on the first article circulation link, such as As shown in FIG. 6b, the method further includes the following steps:

Step 213: Receive a third signature sent by a previous node device in the first article circulation link.

Step 214: Digitally sign the third signature by using the private key of the terminal to obtain a fourth signature.

Step 215: Send the third signature and the fourth signature to the blockchain, so that the third signature and the fourth signature are stored in the blockchain.

That is, steps 211-215 described above describe that each time a first item passes through a node in its circulation link, it must sign the signature sent by the previous node and synchronize it to the blockchain to ensure that the first item can be detected. The node that an item actually passes through.

The following is an example. Assuming that the first item is a product, each node in the circulation of the first item can be regarded as a dealer (equipment). As shown in FIG. 7, Nodes include Dealer A, Dealer B, and Dealer C. In order to effectively control and detect whether the product has passed through a dealer, the product's private key can be used to identify the product itself when it leaves the factory Digitally sign, the identification information can be the public key of the product, or other identifications, such as barcode number, product name, etc. Assuming that the digital identification of the product's own identification information (recorded as T0) is a signature T1 = sign (T0), when the product enters the first dealer A, the dealer A can first verify the signature T1 according to the public key of the product obtained from the blockchain. After passing the verification, Dealer A digitally signs the signature T1 with his own private key to obtain T2 = sign (T1), and then uploads the signature T2 and signature T1 to the blockchain. Therefore, when detecting whether the product has passed through the dealer A, the supervisory device can obtain the signature T2 and the signature T1 from the blockchain, and verify the signature T2 through the public key of the dealer A. When the verification is passed, it can confirm that The product passed through Dealer A. Otherwise, confirm that the product has not passed through Distributor A.

After the goods pass through Dealer A, if it reaches Dealer B, Dealer A will send signature T2 to Dealer B. Dealer B should first sign the signature based on the public key of Dealer A obtained from the blockchain. T2 performs verification. After passing the verification, the dealer B digitally signs the signature T2 with his own private key to obtain a signature T3 = sign (T2), and then uploads the signature T3 and the signature T2 to the blockchain. After the goods pass through the dealer B, if the goods reach the dealer C, the dealer C can get the signature T3 from the dealer B by the same way.

With the above method, there is no need to establish too many associations between the items and the nodes in the circulation link, and only the signature stored on the blockchain and the signature provided by the previous node can be used to determine whether the item has passed the current Node, easy to implement and low cost.

Fig. 8 is a schematic flow chart showing still another method for managing the identity of an article according to an exemplary embodiment of the present disclosure. The method is applied to a terminal. When the terminal is a terminal of an intermediate node on the first article circulation link, as shown in Fig. As shown in FIG. 8, the method further includes the following steps:

Step 216: Generate an information update request for the first item, where the information update request is used to update the information of the first item stored on the blockchain, and the information of the first item includes the first identity information and / Or attribute information.

Step 217: Digitally sign the information update request by using the private key of the terminal to obtain a fifth signature.

Step 218: Send the information update request and the fifth signature to the blockchain, and the smart contract on the blockchain uses the public key of the terminal to verify the fifth signature, and after passing the verification, the fifth signature is verified according to the The information update request updates the information of the first item on the blockchain. The update operation includes at least one of the following: information addition, information deletion, information modification, and / or information revocation.

That is, when the information of the item stored on the blockchain needs to be updated, the terminal can generate the information update request to digitally sign it, and then send the obtained signature to the blockchain. The smart contract on the blockchain passes The public key of the terminal verifies the signature, and after passing the verification, the information of the first item can be updated according to the requirements of the information update request. For example, the identity information of the first article may be suspended or abolished, or the attribute information of the first article may be updated, such as correction of error information, supplementation of incomplete information, or deletion of certain attribute information.

Fig. 9 is a schematic flowchart of an article identity management method according to an exemplary embodiment of the present disclosure. The method is applied to a microprocessing unit. As shown in Fig. 9, the method includes the following steps:

In step 901, a first signature of the target information is obtained by digitally signing the target information by using a private key of the first item stored in the microprocessing unit, and the first item is an item in which the microprocessing unit is located.

Wherein, the micro-processing unit is disposed inside the first article, and its installation manner may be the same as that described in step 101, and details are not described again.

Step 902: Send the first signature to the terminal for the terminal to verify the first signature by using the public key of the first item obtained from the blockchain to determine the first signature recorded in the microprocessing unit. The validity of the first identity of an item.

FIG. 10 is a schematic flowchart of another article identity management method according to the embodiment shown in FIG. 9. The method is applied to a micro processing unit. As shown in FIG. 10 and described in step 901: receiving micro The first signature of the target information sent by the processing unit may include:

Step 9011: Receive the target information generated by the terminal and sent by the terminal, where the target information includes a random number.

Step 9012: Digitally sign the target information by using the private key of the first item to obtain the first signature.

FIG. 11 is a schematic flowchart of another article identity management method according to the embodiment shown in FIG. 9. The method is applied to a micro processing unit. As shown in FIG. 11, step 901: receiving micro The first signature of the target information sent by the processing unit may include:

Step 9013: Generate the target information, where the target information includes a random number or identity information of the first item.

Step 9014: Digitally sign the target information by using the private key of the first item to obtain the first signature.

For example, when the distance between the terminal and the micro-processing unit of the first item reaches the communication distance, and the verification is triggered, the micro-processing unit may generate a random number under the driving of the terminal, and use the The first signature is obtained by digitally signing the random number of the first item's private key, and then the microprocessing unit returns the first signature and the random number to the terminal for the terminal to verify the first signature. .

Further, FIG. 12 is a schematic flowchart of another item identity management method according to an exemplary embodiment of the present disclosure. The method is applied to a microprocessing unit. The method provides a method for checking the authenticity of an item identity, such as As shown in Figure 12, the method further includes the following steps:

Step 903: Send the first identity information of the first item to the terminal for the terminal to query in the blockchain according to the first identity information.

Step 904: Use the private key of the first item to digitally sign the first identity information to obtain a second signature of the first identity information.

Step 905: Send the second signature to the terminal for the terminal to use the public key of the first item and the second identity information after obtaining the second identity information of the first item from the blockchain. The second signature is verified to determine whether the first identity information is authentic.

For example, when verifying the signature of a certain message, the original text of the message and the public key corresponding to the private key when signing are needed. Therefore, based on this principle, after the second identity information is acquired, the first identity information needs to be consistent with the second identity information, and then the second signature of the first identity information can pass verification. Therefore, if the second signature is verified using the public key of the first item, if the second signature can pass the verification, the first identity information can be determined to be authentic; otherwise, if the verification fails, the The first identity information is not real.

When it is determined that the first identity information is true, the terminal also needs to update the identity use status of the first item to the used status in the blockchain. Specifically, steps 208 to 210 may be referred to, and details are not described herein again.

In addition, before the target information is digitally signed by using the private key of the first item stored in the micro processing unit in step 901, the method may further include:

First, a public key and a private key of the first item are generated under the driving of the labeling device. Reference may be made to step 101, and details are not described again.

Secondly, the private key of the first item and the first identity information of the first item are stored locally in the micro processing unit. The private key of the first item stored locally in the micro processing unit may be set to prohibit external devices from reading and writing, the micro processing unit may read the private key of the first item, and may not The private key is written. The public key of the first item is uploaded to the blockchain by the identification device, and reference may be made to step 102, which will not be described again.

Fig. 13 is a block diagram of a terminal according to an exemplary embodiment of the present disclosure. The terminal 1300 may include:

The first receiving module 1301 is configured to receive a first signature of the target information sent by the micro processing unit in the first item, where the first signature is a private key of the first item stored by the micro processing unit by the micro processing unit. Obtained after digitally signing the target information;

A first obtaining module 1302, configured to obtain the public key of the first item from the blockchain;

A first verification module 1303 is configured to determine the validity of the first identity information of the first item recorded in the micro processing unit by verifying the first signature by using the public key of the first item.

Optionally, the receiving module 1301 is configured to:

Generating the target information, the target information including a random number;

Sending the target information to the micro processing unit;

After the micro processing unit digitally signs the target information using the private key of the first item, the micro processing unit receives the first signature sent by the micro processing unit.

Or, in another implementation manner, the receiving module 1301 is configured to:

After the micro-processing unit generates the target information and digitally signs the target information by using the private key of the first item, receiving the first signature and the target information sent by the micro-processing unit;

The target information includes a random number or identity information of the first item.

Optionally, FIG. 14 is a block diagram of another terminal according to an exemplary embodiment of the present disclosure. As shown in FIG. 14, the terminal 1300 further includes:

A second obtaining module 1304, configured to obtain the first identity information of the first item from the micro processing unit;

A query module 1305, configured to perform a query in the blockchain according to the first identity information to obtain the second identity information of the first item from the blockchain;

The first receiving module 1301 is further configured to receive a second signature of the first identity information sent by the micro-processing unit, where the second signature is the first identity information of the micro-processing unit using the private key of the first item. Obtained after digital signature;

A second verification module 1306, configured to determine whether the first identity information is authentic by verifying the second signature by using the public key of the first item and the second identity information;

A first update module 1307 is configured to send data update information to the blockchain when it is determined that the first identity information is true, and the data update information is used by the blockchain to update the identity use status of the first item to already status of use.

Optionally, FIG. 15 is a block diagram of another terminal according to an exemplary embodiment of the present disclosure. As shown in FIG. 15, the terminal further includes:

The query module 1305 is further configured to query the blockchain again according to the first identity information to obtain the identity usage status of the first item from the blockchain;

The identification module 1306 is configured to identify the first item as the used item identity when the identity use status of the first item obtained from the blockchain is used.

Optionally, the terminal is the first node located on the circulation of the first article, the target information is identification information of the first article, and the first signature is a private key pair used by the microprocessing unit to use the first article The identification information is obtained after being digitally signed. FIG. 16 is a block diagram of another terminal according to an exemplary embodiment of the present disclosure. As shown in FIG. 16, the terminal further includes:

A signature module 1307, configured to digitally sign the first signature by using the private key of the terminal to obtain a second signature;

A sending module 1308 is configured to send the first signature and the second signature to the blockchain, so that the first signature and the second signature are stored in the blockchain.

Optionally, the terminal is a terminal of an intermediate node in the first article circulation link. FIG. 17 is a block diagram of another terminal according to an exemplary embodiment of the present disclosure. As shown in FIG. 17, the terminal further includes :

A second receiving module 1309, configured to receive a third signature sent by a previous node device in the first article circulation link;

A signature module 1307, configured to digitally sign the third signature by using the private key of the terminal to obtain a fourth signature;

A sending module 1308 is configured to send the third signature and the fourth signature to the blockchain, so that the third signature and the fourth signature are stored in the blockchain.

Optionally, FIG. 18 is a block diagram of another terminal according to an exemplary embodiment of the present disclosure. As shown in FIG. 18, the terminal further includes:

A second update module 1310 is configured to generate an information update request for the first item, where the information update request is used to update the information of the first item stored on the blockchain, and the information of the first item includes the first item -Identity information and / or attribute information;

A signature module 1307, configured to digitally sign the information update request by using the private key of the terminal to obtain a fifth signature;

A sending module 1308 is configured to send the information update request and the fifth signature to the blockchain, and the smart contract on the blockchain uses the public key of the terminal to verify the fifth signature and passes the verification. Then, the information of the first item on the blockchain is updated according to the information update request, and the update operation includes at least one of the following: information addition, information deletion, information modification, and / or information abolition.

Fig. 19 is a block diagram of a micro processing unit according to an exemplary embodiment of the present disclosure. As shown in Fig. 19, the micro processing unit 1900 includes:

A signature module 1901, configured to digitally sign target information by using a private key of a first item stored in the micro processing unit to obtain a first signature of the target information, where the first item is an item in which the micro processing unit is located;

A sending module 1902 is configured to send the first signature to a terminal, which is used by the terminal to determine the record in the micro processing unit by using the public key of the first item obtained from the blockchain to verify the first signature. The validity of the first identity information of the first item.

Optionally, the signature module 1901 is used to:

Receiving the target information sent by the terminal and generated by the terminal, where the target information includes a random number;

Optionally, the signature module 1901 is used to:

Generating the target information, the target information including a random number or identity information of the first item;

Or, in another implementation,

The sending module 1902 is configured to send the first identity information of the first item to the terminal for the terminal to query in the blockchain according to the first identity information;

The signature module 1901 is further configured to digitally sign the first identity information by using the private key of the first item to obtain a second signature of the first identity information;

The sending module 1902 is further configured to send the second signature to the terminal, which is used by the terminal to obtain the second identity information of the first item from the blockchain by using the public key of the first item and The second identity information verifies the second signature to determine whether the first identity information is authentic.

Fig. 20 is a block diagram illustrating another micro processing unit according to an exemplary embodiment of the present disclosure. As shown in Fig. 20, the micro processing unit further includes:

A generating module 1903, configured to generate a public key and a private key of the first item under a drive of a labeling device before digitally signing target information by using a private key of the first item stored in the micro processing unit;

The storage module 1904 is configured to store the private key of the first item and the first identity information of the first item locally in the micro processing unit.

Optionally, the micro processing unit further includes:

A setting module 1905 is configured to set a private key of the first item stored locally in the micro processing unit to prohibit external devices from reading and writing.

Fig. 21 is a block diagram of a labeling device according to an exemplary embodiment of the present disclosure. As shown in Fig. 21, the labeling device 2100 may include:

A generating module 2101, configured to drive a micro processing unit in the first item to generate a public key and a private key of the first item;

The uploading module 2102 is configured to upload the public key of the first item to the blockchain.

Fig. 22 is a structural diagram illustrating an article management system according to an exemplary embodiment of the present disclosure. The system includes: a terminal 001, a micro processing unit 0021 located in the article 002, and an identification device 003.

The terminal 001 is configured to implement the steps of the method shown in any one of FIG. 2 to FIG. 8;

The micro processing unit 0021 is used for the steps of the method shown in any one of FIG. 9 to FIG. 12;

The identification device 003 is used for the steps of the method shown in FIG. 1.

Optionally, the above system may also be used for the identification of IoT devices. In this scenario, as shown in FIG. 23, the first item may be an IoT device containing the above microprocessing unit 002, and the identification device 003 may be For the production equipment of the IoT device, the terminal 001 may be an identification device for identifying the IoT device.

The production device can activate the micro processing unit in the IoT device, generate a key pair, and upload the public key in the key pair and the identity information of the IoT device to the blockchain. When the identification device performs identification, The micro processing unit obtains the private key signature of the IoT device, and when the signature can be successfully verified by the corresponding public key on the blockchain, it can confirm that the identity of the IoT device is valid. The specific method is the same as the method shown in FIG. 1 to FIG. 12 and will not be described again.

Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be described in detail here.

Fig. 24 is a block diagram of an electronic device 2400 according to an exemplary embodiment. As shown in FIG. 24, the electronic device 2400 may include a processor 2401 and a memory 2402. The electronic device 2400 may further include one or more of a multimedia component 2403, an input / output (I / O) interface 2404, and a communication component 2405. The electronic device 24 may be the above-mentioned terminal or identification device.

The processor 2401 is configured to control the overall operation of the electronic device 2400 so as to complete all or part of the steps in the above-mentioned item identity management method. The memory 2402 is used to store various types of data to support the operation on the electronic device 2400. The data may include, for example, instructions for any application program or method for operating on the electronic device 2400, and application-related data. Examples include contact data, messages sent and received, pictures, audio, video, and more. The memory 2402 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM, Random Access Memory, SRAM for short), electrically erasable programmable read-only memory ( Electrically Erasable Programmable Read-Only Memory (referred to as EEPROM), Erasable Programmable Read-Only Memory (referred to as EPROM), Programmable Read-Only Memory (referred to as PROM), read-only Memory (Read-Only Memory, ROM for short), magnetic memory, flash memory, magnetic disk or optical disk. The multimedia component 2403 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 2402 or transmitted through the communication component 2405. The audio component also includes at least one speaker for outputting an audio signal. The I / O interface 2404 provides an interface between the processor 2401 and other interface modules. The other interface modules may be a keyboard, a mouse, a button, and the like. These buttons can be virtual buttons or physical buttons. The communication component 2405 is used for wired or wireless communication between the electronic device 2400 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, or 4G, or one or more of them, so the corresponding communication component 2405 may include: Wi-Fi module, Bluetooth module, NFC module.

In an exemplary embodiment, the electronic device 2400 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital signal processors (DSPs), and digital signal processing devices (Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), controller, microcontroller, microprocessor or other electronic components Implementation, for performing the above-mentioned item identity management method.

In another exemplary embodiment, a computer-readable storage medium including program instructions is provided. The program instructions, when executed by a processor, implement the steps of the foregoing item identity management method. For example, the computer-readable storage medium may be the foregoing memory 2402 including program instructions, and the foregoing program instructions may be executed by the processor 2401 of the electronic device 2400 to complete the foregoing item identity management method.

In addition, a micro-processing unit is provided, including:

A memory on which a computer program is stored;

The processor is configured to execute the computer program in the memory to implement the steps of the foregoing item identity management method.

A computer-readable storage medium is also provided, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the above-mentioned item identity management method.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure. These simple modifications all belong to the protection scope of the present disclosure.

In addition, it should be noted that the specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure provides various possible features. The combination is not explained separately.

In addition, various embodiments of the present disclosure can also be arbitrarily combined, as long as it does not violate the idea of the present disclosure, it should also be regarded as the content disclosed in the present disclosure.

Claims

An article identity management method, which is applied to a terminal, and the method includes:

Receiving a first signature of target information sent by a micro-processing unit in a first item, the first signature is the micro-processing unit using the private key of the first item stored in the micro-processing unit to pair the target The information is obtained after digitally signing the information;

The public key of the first item obtained from the blockchain;

The validity of the first identity information of the first item recorded in the micro-processing unit is determined by verifying the first signature by using the public key of the first item.
The method according to claim 1, wherein said receiving a first signature of target information sent by a micro-processing unit in a first item, said first signature being said micro-processing unit using A digital signature of the target information by the private key of the first item of the processing unit includes:

Generating the target information, where the target information includes a random number;

Sending the target information to the micro processing unit;

After the micro processing unit digitally signs the target information by using the private key of the first item, the micro processing unit receives the first signature sent by the micro processing unit.
The method according to claim 1, wherein said receiving a first signature of target information sent by a micro-processing unit in a first item, said first signature being said micro-processing unit using A digital signature of the target information by the private key of the first item of the processing unit includes:

After the micro processing unit generates the target information and digitally signs the target information by using the private key of the first item, receiving the first signature and the target information sent by the micro processing unit ;

The target information includes a random number or identity information of the first item.
The method according to claim 1, further comprising:

Acquiring the first identity information of the first item from the micro processing unit;

Querying in the blockchain according to the first identity information to obtain the second identity information of the first item from the blockchain;

Receiving the second signature of the first identity information sent by the microprocessing unit, where the second signature is after the microprocessing unit digitally signs the first identity information by using the private key of the first item owned;

Determining whether the first identity information is authentic by using the public key of the first item and the second identity information to verify the second signature;

When it is determined that the first identity information is true, data update information is sent to the blockchain, and the data update information is used by the blockchain to update an identity use state of the first item to a used state.
The method according to claim 4, further comprising:

Query again in the blockchain according to the first identity information to obtain the identity usage status of the first item from the blockchain;

When the identity use status of the first item obtained from the blockchain is used status, the first item is identified as the item identity used.
The method according to claim 1, characterized in that when the terminal is located at a first node on the circulation of the first article, the target information is identification information of the first article, and the first The signature is obtained after the microprocessing unit digitally signs the identification information by using the private key of the first item, and the method further includes:

Digitally signing the first signature by using the private key of the terminal to obtain a second signature;

Sending the first signature and the second signature to the blockchain to store the first signature and the second signature in the blockchain.
The method according to claim 1, wherein when the terminal is a terminal of an intermediate node on the first article circulation link, the method further comprises:

Receiving a third signature sent by a previous node device in the first article circulation link;

Obtaining a fourth signature by digitally signing the third signature by using the private key of the terminal;

Sending the third signature and the fourth signature to the blockchain so that the third signature and the fourth signature are stored in the blockchain.
The method according to claim 1, further comprising:

Generating an information update request for the first item, where the information update request is used to update the information of the first item stored on the blockchain, and the information of the first item includes the first identity Information and / or attribute information;

Obtaining a fifth signature by digitally signing the information update request by using the private key of the terminal;

Sending the information update request and the fifth signature to the blockchain for smart contracts on the blockchain to verify the fifth signature through the public key of the terminal, and pass the verification Then, the information of the first item on the blockchain is updated according to the information update request, and the update operation includes at least one of the following: information addition, information deletion, information modification, and / or information abolition.
An article identity management method, which is characterized in that it is applied to a micro-processing unit, and the method includes:

Digitally signing target information by using a private key of a first item stored in the micro processing unit to obtain a first signature of the target information, where the first item is an item in which the micro processing unit is located;

Sending the first signature to a terminal for the terminal to determine the recorded in the micro-processing unit by using the public key of the first item obtained from the blockchain to verify the first signature Validity of the first identity information of the first item.
The method according to claim 9, wherein the obtaining the first signature of the target information by digitally signing the target information by using the private key of the first item stored in the microprocessing unit, comprises:

Receiving the target information generated by the terminal and sent by the terminal, where the target information includes a random number;

The first signature is obtained by digitally signing the target information by using the private key of the first item.
The method according to claim 9, wherein the obtaining the first signature of the target information by digitally signing the target information by using the private key of the first item stored in the microprocessing unit, comprises:

Generating the target information, where the target information includes a random number or identity information of the first item;

The first signature is obtained by digitally signing the target information by using the private key of the first item.
The method according to claim 9, further comprising:

Sending the first identity information of the first item to the terminal, for the terminal to query in the blockchain according to the first identity information;

Digitally sign the first identity information by using the private key of the first item to obtain a second signature of the first identity information;

Sending the second signature to the terminal, for the terminal to obtain the second identity information of the first item from the blockchain by using the public key of the first item and the The second identity information verifies the second signature to determine whether the first identity information is authentic.
The method according to claim 9, wherein before the digitally signing the target information by using the private key of the first item stored in the micro processing unit, the method further comprises:

Generating the public key and the private key of the first item under the driving of the labeling device;

The private key of the first item and the first identity information of the first item are stored locally in the micro processing unit.
The method according to claim 13, further comprising:

The private key of the first item stored locally in the micro processing unit is set to prohibit external devices from reading and writing.
An article identity management method, which is characterized in that the method is applied to labeling equipment, and the method includes:

Driving a micro processing unit in the first item to generate a public key and a private key of the first item;

Upload the public key of the first item to the blockchain.
A terminal, which is characterized in that it is applied to a terminal and includes:

A first receiving module, configured to receive a first signature of target information sent by a micro-processing unit in a first item, where the first signature is the micro-processing unit using the first item stored in the micro-processing unit Obtained by digitally signing the target information with a private key of

A first obtaining module, configured to obtain a public key of the first item from a blockchain;

A first verification module is configured to determine the validity of the first identity information of the first item recorded in the micro-processing unit by verifying the first signature by using the public key of the first item.
The terminal according to claim 16, wherein the receiving module is configured to:

Generating the target information, where the target information includes a random number;

Sending the target information to the micro processing unit;

After the micro processing unit digitally signs the target information by using the private key of the first item, the micro processing unit receives the first signature sent by the micro processing unit.
The terminal according to claim 16, wherein the receiving module is configured to:

After the micro processing unit generates the target information and digitally signs the target information by using the private key of the first item, receiving the first signature and the target information sent by the micro processing unit ;

The target information includes a random number or identity information of the first item.
The terminal according to claim 16, wherein the terminal further comprises:

A second acquisition module, configured to acquire the first identity information of the first item from the micro processing unit;

A query module, configured to perform a query in the blockchain according to the first identity information to obtain second identity information of the first item from the blockchain;

The first receiving module is further configured to receive a second signature of the first identity information sent by the microprocessing unit, where the second signature is a private key pair used by the microprocessing unit to use the first item Obtained by digitally signing the first identity information;

A second verification module, configured to determine whether the first identity information is authentic by verifying the second signature by using the public key of the first item and the second identity information;

A first update module, configured to: when it is determined that the first identity information is true, send data update information to the blockchain, the data update information being used by the blockchain to use the identity status of the first item Updated to Used.
The terminal according to claim 19, wherein the terminal further comprises:

The query module is further configured to query the blockchain again according to the first identity information to obtain the identity usage status of the first item from the blockchain;

An identification module, configured to identify the first item as the used item identity when the status of the use of the identity of the first item obtained from the blockchain is used.
The terminal according to claim 16, wherein the terminal is a first node located on the circulation of the first article, the target information is identification information of the first article, and the first signature It is obtained after the micro processing unit digitally signs the identification information by using the private key of the first item, and the terminal further includes:

A signature module, configured to digitally sign the first signature by using the private key of the terminal to obtain a second signature;

A sending module is configured to send the first signature and the second signature to the blockchain, so that the first signature and the second signature are stored in the blockchain.
The device according to claim 16, wherein the terminal is a terminal of an intermediate node in the first article circulation link, and the terminal further comprises:

A second receiving module, configured to receive a third signature sent by a previous node device in the first article circulation link;

A signature module, configured to digitally sign the third signature by using the private key of the terminal to obtain a fourth signature;

A sending module, configured to send the third signature and the fourth signature to the blockchain, so that the third signature and the fourth signature are stored in the blockchain.
The device according to claim 16, further comprising:

A second update module, configured to generate an information update request for the first item, where the information update request is used to update the information of the first item stored on the blockchain, The information includes the first identity information and / or attribute information;

A signature module, configured to digitally sign the information update request by using the private key of the terminal to obtain a fifth signature;

A sending module, configured to send the information update request and the fifth signature to the blockchain, and be used by a smart contract on the blockchain to verify the fifth signature through the public key of the terminal And, after passing the verification, perform an update operation on the information of the first item on the blockchain according to the information update request, the update operation includes at least one of the following: information addition, information deletion, information modification, and / Or the information is discontinued.
A micro-processing unit, comprising:

A signature module, configured to digitally sign target information by using a private key of a first item stored in the micro processing unit to obtain a first signature of the target information, where the first item is where the micro processing unit is located Items

A sending module, configured to send the first signature to a terminal, for the terminal to determine the micro signature by verifying the first signature by using a public key of the first item obtained from a blockchain Validity of the first identity information of the first item recorded in the processing unit.
The microprocessing unit according to claim 24, wherein the signature module is configured to:

Receiving the target information generated by the terminal and sent by the terminal, where the target information includes a random number;

The first signature is obtained by digitally signing the target information by using the private key of the first item.
The microprocessing unit according to claim 24, wherein the signature module is configured to:

Generating the target information, where the target information includes a random number or identity information of the first item;

The first signature is obtained by digitally signing the target information by using the private key of the first item.
The microprocessing unit according to claim 24, further comprising:

A sending module, configured to send the first identity information of the first item to the terminal, and be used by the terminal to query the blockchain according to the first identity information;

The signature module is further configured to digitally sign the first identity information by using the private key of the first item to obtain a second signature of the first identity information;

The sending module is further configured to send the second signature to the terminal for the terminal to obtain the second identity information of the first item from the blockchain by using the first signature A public key of an item and the second identity information verify the second signature to determine whether the first identity information is authentic.
The microprocessing unit according to claim 24, further comprising:

A generating module, configured to generate a public key and a private key of the first item under a drive of a labeling device before digitally signing target information by using a private key of the first item stored in the micro processing unit ;

The storage module is configured to store a private key of the first item and the first identity information of the first item locally in the micro processing unit.
The microprocessing unit according to claim 28, further comprising:

A setting module, configured to set a private key of the first item stored locally in the micro processing unit to prohibit external devices from reading and writing.
A labeling device, comprising:

A generating module for driving a micro-processing unit in the first item to generate a public key and a private key of the first item;

An uploading module is used to upload the public key of the first item to the blockchain.
A computer-readable storage medium having stored thereon a computer program, characterized in that when the computer program is executed by a processor, the steps of the method according to any one of claims 1-8 are implemented.
A terminal, comprising:

A memory on which a computer program is stored;

A processor configured to execute the computer program in the memory to implement the steps of the method according to any one of claims 1-8.
A computer-readable storage medium having stored thereon a computer program, characterized in that when the computer program is executed by a processor, the steps of the method according to any one of claims 9-14 are implemented.
A micro-processing unit, comprising:

A memory on which a computer program is stored;

A processor, configured to execute the computer program in the memory to implement the steps of the method according to any one of claims 9-14.
A computer-readable storage medium having stored thereon a computer program, characterized in that when the computer program is executed by a processor, the steps of the method of claim 15 are implemented.
A micro-processing unit, comprising:

A memory on which a computer program is stored;

A processor configured to execute the computer program in the memory to implement the steps of the method of claim 15.
An article management system, comprising: a terminal, a micro-processing unit located in an article, and an identification device;

The terminal is configured to implement the steps of the method according to any one of claims 1-8;

The micro processing unit is configured to implement the steps of the method according to any one of claims 9-14;

The identification device is used to implement the steps of the method of claim 15.