CN113496025A - Anti-counterfeiting method, device and system based on block chain - Google Patents
Anti-counterfeiting method, device and system based on block chain Download PDFInfo
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- 238000012795 verification Methods 0.000 claims abstract description 41
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- 230000003993 interaction Effects 0.000 description 5
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/34—User authentication involving the use of external additional devices, e.g. dongles or smart cards
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
Abstract
The embodiment of the application discloses an anti-counterfeiting method based on a block chain, wherein the block chain is stored with a block chain identifier of an electronic tag, and when the authenticity of a tag to be identified needs to be verified, a target block chain identifier of the tag to be identified is generated according to the acquired identity information of the tag to be identified. If the target block chain identification is inquired on the block chain, the identification shows that the tag to be identified has a certificate on the block chain, at this time, a digital signature of the tag to be identified is obtained, the digital signature is sent to the block chain, and the block chain verifies the digital signature. The method realizes the verification of the authenticity of the label to be identified on the block chain, so that the whole verification process is transparent and decentralized, the authenticity and the effectiveness of the verification are ensured, and the authenticity of the commodity is ensured.
Description
Technical Field
The present application relates to the field of anti-counterfeiting, and in particular, to an anti-counterfeiting method, device and system based on a block chain.
Background
With the continuous development of Near Field Communication (NFC) and Radio Frequency Identification (RFID) technologies, NFC and RFID are increasingly applied in the Field of anti-counterfeiting traceability, and especially for goods with high added values, the anti-counterfeiting traceability requirements of NFC and RFID are urgent.
In the related art, commodity information is written in an NFC tag or an RFID tag, so that the verification of the NFC tag or the RFID tag is performed to perform anti-counterfeiting tracing.
However, in the related art, the verification process of the NFC tag or the RFID tag is invisible, and only the final authentication result can be returned, which makes it difficult to ensure the authenticity of the product.
Disclosure of Invention
In order to solve the technical problems, the application provides an anti-counterfeiting method, an anti-counterfeiting device and an anti-counterfeiting system based on a block chain, so that the whole verification process is transparent and decentralized, the verification is true and effective, and the authenticity of goods is ensured.
The embodiment of the application discloses the following technical scheme:
in a first aspect, an embodiment of the present application provides an anti-counterfeiting method based on a blockchain, where a blockchain identifier of an electronic tag is stored in the blockchain, and the method includes:
generating a target block chain identifier of the label to be identified according to the acquired identity information of the label to be identified;
if the target block chain identification is inquired on the block chain, acquiring a digital signature of the label to be identified; the digital signature is obtained by encrypting the identity information of the label to be identified according to the private key of the label to be identified;
sending the digital signature to the blockchain so that the blockchain can verify the digital signature;
and obtaining a verification result sent by the block chain, wherein the verification result reflects the authenticity of the label to be identified.
Optionally, the way of verifying the digital signature by the blockchain is as follows:
recovering the public key of the label to be identified according to the digital signature and the identity information;
generating a block chain identifier according to the public key and the unique identifier included in the identity information;
and inquiring whether the generated block chain identification exists on the block chain.
Optionally, the public key of the electronic tag stored in the blockchain and the corresponding blockchain identifier are obtained by the following method:
acquiring identity information of the electronic tag;
generating a block chain identifier corresponding to the electronic tag according to the identity information of the electronic tag;
and sending the block chain identification of the electronic tag to the block chain for storage.
Optionally, the acquiring the digital signature of the tag to be identified includes:
returning the identity information of the label to be identified through card reading equipment;
and receiving the digital signature of the label to be identified forwarded by the card reading equipment.
Optionally, the identity information includes a public key of the tag to be identified and a unique identifier of the tag to be identified.
Optionally, the tag is an NFC tag or an RFID tag.
In a second aspect, an embodiment of the present application provides an anti-counterfeiting device based on a blockchain, where the device includes:
the generating unit is used for generating a target block chain identifier of the label to be identified according to the acquired identity information of the label to be identified;
the first obtaining unit is used for obtaining the digital signature of the label to be identified if the target block chain identifier is inquired on the block chain; the digital signature is obtained by encrypting the identity information of the label to be identified according to the private key of the label to be identified;
a sending unit, configured to send the digital signature to the blockchain, so that the blockchain verifies the digital signature; (ii) a
And the second acquisition unit is used for acquiring a verification result sent by the block chain, and the verification result reflects the authenticity of the label to be identified.
Optionally, the way of verifying the digital signature by the blockchain is as follows:
recovering the public key of the label to be identified according to the digital signature and the identity information;
generating a block chain identifier according to the public key and the unique identifier included in the identity information;
and inquiring whether the generated block chain identification exists on the block chain.
Optionally, the public key of the electronic tag stored in the blockchain and the corresponding blockchain identifier are obtained by the following method:
acquiring identity information of the electronic tag;
generating a block chain identifier corresponding to the electronic tag according to the identity information of the electronic tag;
and sending the block chain identification of the electronic tag to the block chain for storage.
Optionally, the first obtaining unit is configured to:
returning the identity information of the label to be identified through card reading equipment;
and receiving the digital signature of the label to be identified forwarded by the card reading equipment.
Optionally, the identity information includes a public key of the tag to be identified and a unique identifier of the tag to be identified.
Optionally, the tag is an NFC tag or an RFID tag.
In a third aspect, an embodiment of the present application provides an anti-counterfeiting system based on a blockchain, where the system includes a server and a blockchain:
the block chain is used for storing the block chain identification of the electronic tag;
the server is used for generating a target block chain identifier of the label to be identified according to the acquired identity information of the label to be identified; if the server inquires the target block chain identification on the block chain, acquiring a digital signature of the label to be identified; the digital signature is obtained by encrypting the identity information of the label to be identified according to the private key of the label to be identified; sending the digital signature to the blockchain;
the block chain is also used for verifying the digital signature; and sending a verification result to the server, wherein the verification result reflects the authenticity of the label to be identified.
According to the technical scheme, the embodiment of the application has the following advantages:
the embodiment of the application provides an anti-counterfeiting method based on a block chain, wherein the block chain is stored with a block chain identifier of an electronic tag, and when the authenticity of a tag to be identified needs to be verified, a target block chain identifier of the tag to be identified is generated according to the acquired identity information of the tag to be identified. If the target block chain identification is inquired on the block chain, the identification shows that the tag to be identified has a certificate on the block chain, at this time, a digital signature of the tag to be identified is obtained, the digital signature is sent to the block chain, and the block chain verifies the digital signature. The method realizes the verification of the authenticity of the label to be identified on the block chain, so that the whole verification process is transparent and decentralized, the authenticity and the effectiveness of the verification are ensured, and the authenticity of the commodity is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a signaling interaction diagram of an anti-counterfeiting method based on a block chain according to an embodiment of the present application;
fig. 2 is a signaling interaction diagram of an anti-counterfeiting method based on a block chain according to an embodiment of the present application;
fig. 3 is a signaling interaction diagram of an electronic tag personalization process according to an embodiment of the present disclosure;
fig. 4 is a structural diagram of an anti-counterfeiting device based on a block chain according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Most of the current schemes for anti-counterfeiting tracing based on NFC or RFID are based on centralized servers, and the verification process of the NFC label or the RFID label is invisible and can only return the final authentication result. If the centralized server is damaged, the anti-counterfeiting will fail, and the authentication process is opaque and invisible for the third institution, so that the authenticity of the goods cannot be ensured.
Therefore, an embodiment of the present application provides an anti-counterfeiting method based on a blockchain, where a public key of an electronic tag and a corresponding blockchain identifier are stored in the blockchain, and when the authenticity of a tag to be identified needs to be verified, a target blockchain identifier of the tag to be identified is generated according to the obtained identity information of the tag to be identified. If the target block chain identification is inquired on the block chain, the identification shows that the tag to be identified has a certificate on the block chain, at this time, a digital signature of the tag to be identified is obtained, the digital signature is sent to the block chain, and the block chain verifies the digital signature. The method realizes the verification of the authenticity of the label to be identified on the block chain, so that the whole verification process is transparent and decentralized, the authenticity and the effectiveness of the verification are ensured, and the authenticity of the commodity is ensured.
The method provided by the embodiment of the application is described in detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 shows a signaling interaction diagram of an anti-counterfeiting method based on a block chain, where the method includes:
s101, the server acquires identity information of the label to be identified.
In this embodiment, the tag to be identified may be an electronic tag, a data carrier, and have a certain data processing function, such as an NFC tag or an RFID tag.
The tag to be identified can generate a public and private key pair (P, P), where P is the private key of the tag to be identified and P is the public key of the tag to be identified. The algorithm of the tag to be identified for generating the public and private key pair is consistent with the algorithm on the blockchain.
The identity information of the tag to be identified may include a public key P of the tag to be identified and a Unique IDentifier (UID) of the tag to be identified. In S101, the server may obtain the identity information of the tag to be recognized by reading the identity information of the tag to be recognized through the card reading device (see S201 in fig. 2), the tag to be recognized returns the identity information of the tag to be recognized to the card reading device (see S202 in fig. 2), and the card reading device sends the identity information of the tag to be recognized to the server (see S203 in fig. 2).
S102, the server generates a target block chain identifier of the label to be identified according to the acquired identity information of the label to be identified.
When the identity information includes a public key P and a UID of the tag to be identified, the server generates a target block chain Identification (BID) of the tag to be identified on the block chain according to the public key P and the UID.
Wherein S102 corresponds to S204 in fig. 2.
S103, whether a target block chain mark exists on the block chain or not is judged by the server.
The block chain adopted in the embodiment of the application stores the block chain identification of the electronic tag. Since the blockchain identifier of the electronic tag is stored in the blockchain, it indicates that the BID has an over-existence certificate on the blockchain, that is, the tag exists really, after the server acquires the target blockchain identifier, the server may query whether the target blockchain identifier exists on the blockchain, and if so, it indicates that the tag to be recognized and the blockchain identifier stored on the blockchain have a binding relationship, that is, the tag to be recognized has an over-existence certificate on the blockchain, and the tag to be recognized exists really, possibly.
Wherein S103 corresponds to S205 in fig. 2.
It can be understood that, in order to implement decentralized anti-counterfeit tracing, when each electronic tag leaves the factory, personalization processing needs to be performed on the electronic tag, that is, relevant information of the product, such as the name, production date, serial number, and the like of the product, is written in the electronic tag, and a binding relationship between the electronic tag and the BID is established, that is, the BID of the electronic tag is certified and recorded on the block chain. Therefore, in this embodiment, the blockchain identifier of the electronic tag stored in the blockchain is obtained in the following manner, and the identity information of the electronic tag is obtained; generating a block chain identifier corresponding to the electronic tag according to the identity information of the electronic tag; and sending the block chain identification of the electronic tag to the block chain for storage.
In particular, referring to fig. 3, fig. 3 shows a signaling interaction diagram of an electronic tag personalization process. The method comprises the following steps:
and S301, generating a public and private key pair by the electronic tag.
And S302, reading the identity information of the electronic tag by the card reading device.
The identity information of the electronic tag read by the card reading device may include a public key and P and UID of the electronic tag.
And S303, the card reading equipment sends the identity information of the electronic tag to a server.
S304, the server generates a block chain identifier corresponding to the electronic tag according to the identity information of the electronic tag.
S305, the server sends the block chain identification of the electronic tag to the block chain for storage.
S104, the server receives the query result.
The query result may identify whether the target blockchain identifier is queried on the blockchain, if the target blockchain identifier is queried on the blockchain by the query result identifier, S105 is executed, and if the target blockchain identifier is not queried on the blockchain by the query result identifier, the verification procedure is ended.
Wherein S104 corresponds to S206 in fig. 2.
And S105, if the server inquires the target block chain identifier on the block chain, acquiring the digital signature of the label to be identified.
And the digital signature is obtained by encrypting the identity information of the label to be identified according to the private key of the label to be identified. The digital signature can be obtained by the server returning the identity information of the label to be identified through the card reading device; and receiving the digital signature of the label to be identified forwarded by the card reading equipment.
Specifically, the server prepares a message to be signed, for example, identity information of a tag to be recognized (see S207), the server returns the identity information of the tag to be recognized to the card reading device (see S208), the card reading device forwards the identity information of the tag to be recognized to the tag to be recognized (see S209), the tag to be recognized encrypts the identity information of the tag to be recognized by using a private key to obtain a digital signature (see S210), the tag to be recognized returns the digital signature to the card reading device (see S211), and the card reading device forwards the digital signature to the server (see S212).
S106, the server sends the digital signature to the block chain.
Wherein S106 corresponds to S213 in fig. 2.
And S107, verifying the digital signature by the block chain.
After the blockchain acquires the digital signature, the digital signature can be verified. In some cases, the server or the block chain receives a digital signature (which may be represented by sign) and identity information (which may be represented by msg), and according to the sign and the msg, a public key (which may be represented by P) of a tag to be identified can be recovered by using a specific algorithm, and then, a BID is generated according to the public key P and the unique identifier UID, and the BID is queried in the block chain. If the label to be identified is an illegal label, the obtained digital signature is incorrect, so that the public key P recovered according to the digital signature is incorrect, and the corresponding BID cannot be found on the block chain, thereby completing the verification of the digital signature.
Wherein S107 corresponds to S214 in fig. 2.
S108, the server obtains the verification result.
The verification result can reflect the authenticity of the label to be recognized, if the label to be recognized is true, the verification result can reflect that the verification is passed, and if the label to be recognized is false, the verification result can reflect that the verification fails.
Wherein S108 corresponds to S215 in fig. 2.
The embodiment of the application provides an anti-counterfeiting method based on a block chain, wherein the block chain is stored with a block chain identifier of an electronic tag, and when the authenticity of a tag to be identified needs to be verified, a target block chain identifier of the tag to be identified is generated according to the acquired identity information of the tag to be identified. If the target block chain identification is inquired on the block chain, the identification shows that the tag to be identified has a certificate on the block chain, at this time, a digital signature of the tag to be identified is obtained, the digital signature is sent to the block chain, and the block chain verifies the digital signature. The method realizes the verification of the authenticity of the label to be identified on the block chain, so that the whole verification process is transparent and decentralized, the authenticity and the effectiveness of the verification are ensured, and the authenticity of the commodity is ensured.
Based on the method provided by the foregoing embodiment, referring to fig. 1, an embodiment of the present application provides an anti-counterfeiting device based on a blockchain, referring to fig. 4, where the device includes:
a generating unit 401, configured to generate a target blockchain identifier of a tag to be identified according to the acquired identity information of the tag to be identified;
a first obtaining unit 402, configured to obtain a digital signature of the tag to be identified if the target blockchain identifier is queried on the blockchain; the digital signature is obtained by encrypting the identity information of the label to be identified according to the private key of the label to be identified;
a sending unit 403, configured to send the digital signature to the blockchain, so that the blockchain verifies the digital signature; (ii) a
A second obtaining unit 404, configured to obtain a verification result sent by the blockchain, where the verification result reflects authenticity of the tag to be identified.
Optionally, the way of verifying the digital signature by the blockchain is as follows:
recovering the public key of the label to be identified according to the digital signature and the identity information;
generating a block chain identifier according to the public key and the unique identifier included in the identity information;
and inquiring whether the generated block chain identification exists on the block chain.
Optionally, the public key of the electronic tag stored in the blockchain and the corresponding blockchain identifier are obtained by the following method:
acquiring identity information of the electronic tag;
generating a block chain identifier corresponding to the electronic tag according to the identity information of the electronic tag;
and sending the block chain identification of the electronic tag to the block chain for storage.
Optionally, the first obtaining unit is configured to:
returning the identity information of the label to be identified through card reading equipment;
and receiving the digital signature of the label to be identified forwarded by the card reading equipment.
Optionally, the identity information includes a public key of the tag to be identified and a unique identifier of the tag to be identified.
Optionally, the tag is an NFC tag or an RFID tag.
The embodiment of the present application further provides an anti-counterfeiting system based on the blockchain, where the system includes a server and a blockchain:
the block chain is used for storing the block chain identification of the electronic tag;
the server is used for generating a target block chain identifier of the label to be identified according to the acquired identity information of the label to be identified; if the server inquires the target block chain identification on the block chain, acquiring a digital signature of the label to be identified; the digital signature is obtained by encrypting the identity information of the label to be identified according to the private key of the label to be identified; sending the digital signature to the blockchain;
the block chain is also used for verifying the digital signature; and sending a verification result to the server, wherein the verification result reflects the authenticity of the label to be identified.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium may be at least one of the following media: various media that can store program codes, such as read-only memory (ROM), RAM, magnetic disk, or optical disk.
It should be noted that, in the present specification, all the embodiments are described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus and system embodiments, since they are substantially similar to the method embodiments, they are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only one specific embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. An anti-counterfeiting method based on a blockchain is characterized in that a blockchain identifier of an electronic tag is stored on the blockchain, and the method comprises the following steps:
generating a target block chain identifier of the label to be identified according to the acquired identity information of the label to be identified;
if the target block chain identification is inquired on the block chain, acquiring a digital signature of the label to be identified; the digital signature is obtained by encrypting the identity information of the label to be identified according to the private key of the label to be identified;
sending the digital signature to the blockchain so that the blockchain can verify the digital signature;
and obtaining a verification result sent by the block chain, wherein the verification result reflects the authenticity of the label to be identified.
2. The method of claim 1, wherein the blockchain verifies the digital signature by:
recovering the public key of the label to be identified according to the digital signature and the identity information;
generating a block chain identifier according to the public key and the unique identifier included in the identity information;
and inquiring whether the generated block chain identification exists on the block chain.
3. The method according to claim 1, wherein the public key of the electronic tag stored on the blockchain and the corresponding blockchain identifier are obtained by:
acquiring identity information of the electronic tag;
generating a block chain identifier corresponding to the electronic tag according to the identity information of the electronic tag;
and sending the block chain identification of the electronic tag to the block chain for storage.
4. The method of claim 1, wherein the obtaining the digital signature of the tag to be identified comprises:
returning the identity information of the label to be identified through card reading equipment;
and receiving the digital signature of the label to be identified forwarded by the card reading equipment.
5. The method according to any one of claims 1-4, wherein the identity information comprises a public key of the tag to be identified and a unique identifier of the tag to be identified.
6. The method of any one of claims 1-4, wherein the tag is an NFC tag or an RFID tag.
7. A blockchain-based anti-counterfeiting device, the device comprising:
the generating unit is used for generating a target block chain identifier of the label to be identified according to the acquired identity information of the label to be identified;
the first obtaining unit is used for obtaining the digital signature of the label to be identified if the target block chain identifier is inquired on the block chain; the digital signature is obtained by encrypting the identity information of the label to be identified according to the private key of the label to be identified;
a sending unit, configured to send the digital signature to the blockchain, so that the blockchain verifies the digital signature; (ii) a
And the second acquisition unit is used for acquiring a verification result sent by the block chain, and the verification result reflects the authenticity of the label to be identified.
8. The apparatus of claim 7, wherein the blockchain verifies the digital signature by:
recovering the public key of the label to be identified according to the digital signature and the identity information;
generating a block chain identifier according to the public key and the unique identifier included in the identity information;
and inquiring whether the generated block chain identification exists on the block chain.
9. The apparatus according to claim 7, wherein the public key of the electronic tag stored on the blockchain and the corresponding blockchain identifier are obtained by:
acquiring identity information of the electronic tag;
generating a block chain identifier corresponding to the electronic tag according to the identity information of the electronic tag;
and sending the block chain identification of the electronic tag to the block chain for storage.
10. An anti-counterfeiting system based on a block chain is characterized by comprising a server and the block chain:
the block chain is used for storing the block chain identification of the electronic tag;
the server is used for generating a target block chain identifier of the label to be identified according to the acquired identity information of the label to be identified; if the server inquires the target block chain identification on the block chain, acquiring a digital signature of the label to be identified; the digital signature is obtained by encrypting the identity information of the label to be identified according to the private key of the label to be identified; sending the digital signature to the blockchain;
the block chain is also used for verifying the digital signature; and sending a verification result to the server, wherein the verification result reflects the authenticity of the label to be identified.
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| CN110601827A (en) * | 2019-09-12 | 2019-12-20 | 腾讯科技（深圳）有限公司 | Block chain-based identity recognition method, device and system and storage medium |
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