CN112800464A - Anti-counterfeiting tracing method and system based on block chain - Google Patents
Anti-counterfeiting tracing method and system based on block chain Download PDFInfo
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Abstract
The invention relates to an anti-counterfeiting tracing method and system based on a block chain, which constructs an anti-counterfeiting tracing block chain platform based on a block chain intelligent contract, successively generates a public key and a private key pair of each block chain node of the block chain platform, writes product related information with a time stamp into a current block based on a private key of a current node, writes anti-counterfeiting tracing verification information with the time stamp into the current block based on a public key of a next flow node, reads the product related information according to the public key of the previous node by a secondary node, reads the anti-counterfeiting tracing verification information according to the private key of the node, completes the anti-counterfeiting tracing verification of a product, constructs an anti-counterfeiting tracing block chain by the way of the above, can thoroughly solve the problem of information public power in the anti-counterfeiting tracing of the product by means of the authority and function of the key pair generated by the block chain, standardizes the commercial behavior of each flow node, and eradicates the counterfeit and bad problems in the product circulation process, the anti-counterfeiting tracing of the product is realized, and the product is open, transparent, visible and credible.
Description
Technical Field
The invention belongs to the technical field of product anti-counterfeiting and traceability, and particularly relates to an anti-counterfeiting traceability method and system based on a block chain.
Background
The anti-counterfeiting of the existing product mainly adopts the following modes: RFID wireless radio frequency, by attaching a label with a chip on a product package, the product can automatically collect and read related information when entering and exiting a warehouse and being transported, and the flow direction of the product can be recorded on the chip; the consumer can inquire the related information of the product by scanning the two-dimensional code through equipment such as a smart phone, the inquired record is kept in the system, and the short message can be directly sent to the consumer once the product needs to be recalled, so that accurate recall is realized; and the bar code and the product batch information are used for product anti-counterfeiting through adding information such as production date, production time, batch number and the like to the bar code.
Although these anti-counterfeiting tracing technologies play a role in anti-counterfeiting tracing and can alleviate the harm caused by counterfeit and shoddy products to a certain extent, but actually, the problems of counterfeiting and cheating in circulation links by means of copying and transferring anti-counterfeiting marks and the like, the problems of interaction, transmission, verification, tracing and the like of product related information and anti-counterfeiting tracing information among circulation links of products and the problems of disclosure, transparency, visibility, credibility, non-falsification, traceability and the like of the anti-counterfeiting tracing information cannot be fundamentally solved, the technology of counterfeiting tracing is higher and higher along with the development of modern technologies, the credibility of the existing anti-counterfeiting tracing technology is lower and lower, along with the development of times, the interaction and circulation requirements of new product types are continuously increased, and the traditional anti-counterfeiting tracing technology cannot solve and meet the problems that new product types are interacted, and the communication requirements of new product types cannot be continuously increased, The anti-counterfeiting and tracing problems of information and data modification, counterfeiting, replacement and the like in the circulation process do not meet the requirements of times development, and the anti-counterfeiting and tracing requirements of products cannot be really met.
Disclosure of Invention
The invention provides an anti-counterfeiting traceability method and an anti-counterfeiting traceability system based on a block chain, which have the advantages of high public credibility, openness, transparency, visibility, credibility, falsification, replacement and the like, and can fundamentally solve the problems of counterfeiting and cheating in circulation links by means of copying and transferring anti-counterfeiting marks and the like in the whole process of production, transfer and circulation of products, the problems of interaction, transmission, verification, tracking and the like of product related information and anti-counterfeiting traceability information among circulation links of the products, the problems of disclosure, transparency, credibility, non-tampering, traceable and the like, the problems of anti-counterfeiting and traceability of information, data, digital assets, digital certificates and the like in the interaction, circulation requirement process of new product types, the anti-counterfeiting and traceability problems of counterfeiting, replacement and the like in the prior art Information and data modification, counterfeiting and replacement in the circulation process, counterfeiting and counterfeit problems and the like.
According to the specific implementation mode of the invention, the anti-counterfeiting tracing method based on the block chain comprises the following steps:
constructing a product anti-counterfeiting traceability block chain platform based on an intelligent contract;
successively generating a public key and a private key pair of each blockchain node of the blockchain platform, wherein the private key is used for the permission of the blockchain node for writing information and the permission for reading the information written based on the corresponding public key, and the public key is used for the permission for reading the information written based on the corresponding private key;
the current block link point writes the relevant information of the product with the timestamp into the current block link node based on the private key of the current block link point, and writes the anti-counterfeiting traceability verification information with the timestamp into the current block link node based on the public key of the next block link point;
and the next block link point reads the relevant information of the product with the timestamp based on the current block link node public key, and reads the anti-counterfeiting tracing verification information with the timestamp based on the next block link point private key to finish the anti-counterfeiting tracing verification of the product.
Further, the anti-counterfeiting tracing method based on the blockchain further comprises the following steps: the block chain link points are synchronous to circulation nodes of the product, public keys of all the block chain link points are concentrated and synchronously correspond to two-dimensional codes opened to the public, and the public carries out anti-counterfeiting traceability verification through the two-dimensional codes;
the starting block chain node writes anti-counterfeiting tracing verification information with a timestamp based on the node public key, and is decrypted by any subsequent node by the starting block chain node private key, so that the starting block chain node is used for cross-node and full-process tracing anti-counterfeiting tracing verification of products.
Further, the anti-counterfeiting tracing method based on the blockchain further comprises the following steps: and writing the current block chain node into a product information code with a timestamp based on the next block chain node public key, reading the product information code by the next block chain node based on the next block chain node private key, generating a new product information code with the timestamp on the basis of the code, writing the new product information code into the next block chain node based on the next node public key, and forming an anti-counterfeiting and source-tracing code chain of the product by analogy to realize the tracing and the non-tampering of the product information.
Further, the anti-counterfeiting tracing method based on the blockchain further comprises the following steps: the starting block chain node writes block information based on the starting block chain node private key, one part of the block information is encrypted by the starting block chain node public key, one part of the block information is encrypted by the sub-block chain link point public key, the starting block chain node public key encrypted part decrypts the next block chain link point of the sub-block chain link point, and the whole process anti-counterfeiting traceability chain is formed by analogy and is used for whole process and cross-node anti-counterfeiting traceability verification.
Further, the anti-counterfeiting tracing method based on the blockchain further comprises the following steps: the starting block chain node collects product related information, writes the product related information into the starting block chain node based on a next block chain link point public key, reads the product related information written by the starting block chain node, writes the product related information into the next block chain node based on a next block chain link point public key of the next block chain node, and forms an anti-counterfeiting traceability chain of the product related information by analogy;
the current blockchain node hashes the product-related information and writes the hash value into the current blockchain node based on the current blockchain node private key.
Further, the anti-counterfeiting tracing method based on the blockchain further comprises the following steps: the current block chain node reads the product related information written in the previous block chain link point based on the private key of the node, and writes the product related information into the current block chain node based on the public key of the previous block chain link point;
and the last block chain link point reads the relevant information of the product written in by the current block chain node based on the private key of the last block chain link point, and performs forward anti-counterfeiting tracing verification by contrasting the corresponding relation of the relevant information of the product written in by the last block chain link point based on the public key of the current block chain node.
Further, the anti-counterfeiting tracing method based on the blockchain further comprises the following steps: the starting block chain node performs hash encryption on product related information, and writes the starting hash value into the starting block chain node based on the starting block chain node private key;
and the starting block chain node reads the hash value of the product related information written in by the current block chain node based on the public key of the current block chain node, and compares and verifies the current hash value and the starting hash value to realize anti-counterfeiting traceability, so that all nodes can realize forward anti-counterfeiting traceability verification of a whole process and cross nodes.
Further, the anti-counterfeiting tracing method based on the blockchain further comprises the following steps: and the current block chain node reads the initial hash value of the product related information of the initial block chain link based on the initial block chain node public key, and compares and verifies the current hash value of the current product related information and the initial hash value to realize the reverse anti-counterfeiting traceability verification of the whole process and cross nodes.
Further, the anti-counterfeiting tracing method based on the blockchain further comprises the following steps:
when a product enters a second-hand transaction link, a current product holder writes requirement information of a next block chain link point into a current block chain node according to a private key of a current product holder node of a key pair generated by an intelligent contract according to the requirement of the next block chain link point, and the next block chain link point reads the requirement information based on a node public key of the current product holder, performs authentication and anti-counterfeiting tracing on the product and achieves zero knowledge certification;
and when the transaction is completed, the new product holder completes the product right and generates the product electronic identity card based on the node public key and the private key pair generated by the intelligent contract agreement.
According to a specific embodiment of the present invention, an anti-counterfeiting traceability system based on a block chain includes:
the block chain construction module is used for constructing a product anti-counterfeiting traceability block chain platform based on an intelligent contract;
the intelligent contract module is used for successively generating a public key and a private key pair of each block chain node of the block chain platform, wherein the private key is used for the block chain node to write in information and read the information written based on the corresponding public key, and the public key is used for reading the information written based on the corresponding private key; and
the verification module is used for writing relevant information of a product with a timestamp into a current block chain node by the current block chain node based on a private key of the current block chain node, writing anti-counterfeiting traceability verification information with a timestamp into the current block chain node based on a public key of a next block chain node, reading the relevant information of the product with the timestamp by the next block chain node based on the public key of the current block chain node, reading the anti-counterfeiting traceability verification information with the timestamp based on a private key of the next block chain node, and completing the anti-counterfeiting traceability verification of the product.
The invention has the beneficial effects that: by constructing an anti-counterfeiting tracing block chain platform, a key pair of a public key and a private key which is independent and unique in each link from production (generation) to circulation is generated, the private key is used for the permission of writing information into the block chain nodes and the permission of reading the information written based on the corresponding public key, all information writing blocks cannot be modified, the public key is used for reading the permission of writing information based on the corresponding private key and an entrance for receiving information, the public key and the private key of each block chain node are generated in pairs, the public key is open to the outside, the private key nodes are secret, the information written based on the public key can only be read by the corresponding private key, the information written based on the private key can only be read by the corresponding public key, the information encrypted based on the private key can only be decrypted by the corresponding public key, the information encrypted based on the public key can only be decrypted by the corresponding private key, and the node, the node private key is used for reading information transmitted by each node based on the corresponding public key, based on the authority and functions of the private key and the public key, each block link point in the whole process of production, transfer and circulation of the product respectively collects, writes in, encrypts, transmits, tracks, verifies, shows and the like product related information, circulation node information and anti-counterfeiting traceability verification information, is used for solving the problems of counterfeiting and circulation cheating through means of copying, transferring anti-counterfeiting marks and the like in the whole process of production, transfer and circulation of the product, and the problems of interaction, transmission, verification, tracking and the like of the product related information and the anti-counterfeiting traceability information among circulation links of the product, and realizing and solving the problems of disclosure, transparency, visibility, credibility, non-tampering, traceability and the like of the anti-counterfeiting traceability information, data, digital assets, anti-counterfeiting information, traceability information and the like Digital certificates and the like, the anti-counterfeiting traceability problems of new product types, information and data modification, counterfeiting, replacement and the like in circulation form a product anti-counterfeiting traceability block chain, the problem of information public credibility in the product anti-counterfeiting traceability can be thoroughly solved by means of the authority and functions of a private key and a public key generated by the block chain, the fraud behaviors of all circulation nodes can be effectively prevented and stopped, the commercial behaviors of all the circulation nodes are standardized, the counterfeit and inferior problems in the product circulation process are eradicated, and the open, transparent, visible and credible product anti-counterfeiting traceability is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow diagram of a blockchain-based anti-counterfeiting traceability method provided in accordance with an exemplary embodiment;
fig. 2 is a schematic diagram of an anti-counterfeiting traceability system provided according to an exemplary embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an anti-fake tracing method based on a blockchain, which specifically includes:
101. constructing a product anti-counterfeiting traceability block chain platform based on an intelligent contract;
102. successively generating a public key and a private key pair of each blockchain node of the blockchain platform, wherein the private key is used for the permission of the blockchain node for writing information and the permission for reading the information written based on the corresponding public key, and the public key is used for the permission for reading the information written based on the corresponding private key;
103. the current block link point writes the relevant information of the product with the timestamp into the current block link node based on the private key of the current block link point, and writes the anti-counterfeiting traceability verification information with the timestamp into the current block link node based on the public key of the next block link point;
104. and the next block link point reads the relevant information of the product with the timestamp based on the current block link node public key, and reads the anti-counterfeiting tracing verification information with the timestamp based on the next block link point private key to finish the anti-counterfeiting tracing verification of the product.
Specifically, based on the intelligent contract of the block chain, the public key and the private key of each information product block chain node are generated in pairs, and the public key and the private key are paired, the public key is disclosed to the outside, the private key node keeps secret, only the corresponding private key can read the information written based on the public key, only the corresponding public key can read the information written based on the private key, the information encrypted based on the private key can only be decrypted by the corresponding public key, the information encrypted based on the public key can only be decrypted by the corresponding private key, the node public key is used for receiving the information transmitted to the node by other nodes, the node private key is used for reading the information transmitted by each node based on the corresponding public key, the private key is used for distinguishing the authority of the block chain node for writing the information and the authority for reading the information written based on the corresponding public key, and the public key is used for reading the authority of the information written based on the corresponding private key, the authority for receiving the anti-counterfeiting traceability verification information.
Specifically, when the product is an information product, a public key and a private key pair of each node in an information product transmission link are successively generated based on a block chain intelligent contract in specific implementation, the key pair is used as the authority of each node for accessing the information product block chain and the authority for uploading information to the information product block chain, the safety of uploading, storing, accessing, interacting and transmitting the information product is realized, zero trust safety is achieved, and the private key of each information product block chain node is used as the unique authority for accessing the information product block chain and is used as the unique authority for uploading, interacting and transmitting the information product in the information product block chain.
And when the intelligent contract is in specific operation, the upstream and downstream rights and obligations of the circulation link are automatically executed, and block verification and locking are carried out on the authenticity and seriousness of the information of the previous block, so that the traceability and the non-tampering of the information are achieved. When the product needs to be subjected to secondary transaction, both parties of the transaction perform anti-counterfeiting traceability verification and right-confirming verification on the product according to the authority and the functions of the public key and the private key generated by the intelligent contract in the product anti-counterfeiting traceability block chain platform constructed based on the intelligent contract, so that zero knowledge proof is achieved, and anti-counterfeiting, traceability, verification, transaction and right-confirming of the product are completed.
Specifically, a private key in the key pair is kept by the node, and is the only authority for writing the block information of the node into each node, and the block information cannot be modified or deleted once written, so that the information is irreversible and cannot be tampered. The public key is used for information transmission among all block nodes and verifying the information source of the block information, and the interaction, transmission, tracking, verification, anti-counterfeiting and tracing of the comprehensive information of the product are completed. The private key is used as the reputation guarantee of the node, the unique authority of writing information into the private key is beneficial to tracing the block information, the anti-counterfeiting tracing of the product which is public, transparent, visible and credible is realized, the authenticity and seriousness of the block chain information are ensured, and the information written into the block chain node according to the private key is equivalent to the digital signature of the owner of the private key, so that the traceable product block chain information is formed.
The method solves the problems of counterfeiting and cheating in circulation links by means of copying, transferring anti-counterfeiting marks and the like in the whole process of production, transfer and circulation of products, the problems of interaction, transmission, verification, tracking and the like of product related information and anti-counterfeiting traceability information between circulation links of the products, and the problems of opening, transparency, visibility, credibility, no falsification, traceability and the like of the anti-counterfeiting traceability information by combining the characteristics of a block chain with the authority and functions of a private key and a public key in an intelligent contract generation public key and a public key in circulation, forms a product anti-counterfeiting traceability area block chain, can thoroughly solve the problem of information public credibility in the anti-counterfeiting source of the products by relying on the authority and functions of the private key and the public key generated by the block chain, and further meets and solves the problems of information, data, digital assets, digital rights and certificates and the like, and the interaction of new product types, information and data modification in circulation, The anti-counterfeiting tracing problems of counterfeiting, replacement and the like can effectively prevent and stop the fraud behaviors of each circulation node, standardize the commercial behaviors of each circulation node, eliminate the counterfeiting and inferior problems in the product circulation process and realize effective tracing, thereby eliminating the counterfeiting and inferior problems in the product circulation process, leading the counterfeiting and inferior products to be capable of entering without holes and incapable of cutting into the circulation field of genuine products and realizing the anti-counterfeiting tracing of open, transparent, visible and credible products.
As an implementation manner of the above embodiment, in a specific implementation, the current blockchain node writes the relevant block information of the product in the current blockchain node by using its own private key and based on its own private key, and simultaneously writes the product block information in the subsequent node based on the public key of the subsequent node, the subsequent node reads the product block information according to its own private key, and simultaneously reads the block information according to the public key of the previous node, and the product block information is compared and verified for verifying that the product and the information are originated from the previous node, and reverse anti-counterfeit verification and tracing are performed.
Certainly, the current blockchain node writes the product block information in the current blockchain node by using the own private key and based on the own private key, encrypts the product block information by using the public key of the subsequent node, decrypts the block encrypted information by using the subsequent node according to the own private key, reads the block information according to the public key of the previous node, compares and verifies the product block information, and is used for verifying that the product and the information are from the previous node to perform reverse anti-counterfeiting verification and tracing.
Certainly, the method can also be further used for writing the block information into the starting block chain node based on a starting block chain node private key, encrypting a part of the block information by using a starting block chain node public key, encrypting a part of the block information by using a next block chain node public key, and decrypting a next block chain node public key of the next block chain node by using the starting block chain node public key encryption part for cross-node anti-counterfeiting traceability verification;
the method is particularly used for writing the current block link point into block information according to a private key of the current block link point, encrypting a part of the block information by using a public key of the next block link point, decrypting the sub-block link point of the next block link node by using the encrypted part of the public key of the current block link point, and so on for the full-process cross-node anti-counterfeiting traceability verification;
in another embodiment of the invention, the block link points are synchronized with the circulation nodes of the product, public keys of all the block link points are centralized and synchronously correspond to the two-dimensional codes opened to the public, and the public carries out anti-counterfeiting traceability verification through the two-dimensional codes.
Specifically, an anti-counterfeiting tracing chip and an external information synchronous two-dimensional code are arranged in a product needing anti-counterfeiting tracing based on one object core, the chip, the two-dimensional code and the product are physically anchored, each node can read information and input information to the chip based on a generated unique authorized public key and private key pair, and after each information block is generated by the chip, the information synchronously corresponds to the public (consumer) open two-dimensional code and can be used for the public (consumer) to check the anti-counterfeiting tracing.
And the starting block chain node of the block chain platform writes in anti-counterfeiting traceability verification information with a timestamp based on the public key of the node, and the private key of the starting block chain node decrypts any node of subsequent product circulation, so that the method is used for cross-node product full-flow information tracking and anti-counterfeiting traceability verification.
The starting node in the block chain can be used as a recording node after the production of a product of a manufacturer, the starting node writes anti-counterfeiting traceability verification information into the public key of the starting node, the anti-counterfeiting traceability verification information can be verified in any node block of a circulation link, the starting node decrypts the information according to the private key of the node and is used for cross-node and full-process anti-counterfeiting traceability verification, the starting node reads the information of each block according to the public key of each node and synchronizes the information with an external two-dimensional code anchored with the product. And reading anti-counterfeiting traceability verification information with a timestamp at the starting block chain node based on each node public key, and synchronizing the information to the two-dimensional code for traceability verification.
In some embodiments of the present invention, the current block link point writes in the (time-stamped and encrypted) product-related information code based on the next block link point public key, the next block link point reads (decrypts) the product (time-stamped and encrypted) product-related information code based on the next block link point private key, and generates a new (time-stamped and encrypted) product-related information code based on this code, and writes the new product-related information code in the next block link node based on the next block link point secondary node public key, and so on to form a product anti-counterfeiting traceability coding chain, thereby realizing traceability and non-tampering of the product-related information.
For example, the current node writes in (time-stamped and encrypted) product-related information codes according to the public key of the secondary node, the secondary node reads (decrypts) the (time-stamped and encrypted) product-related information codes according to the private key and generates new (time-stamped and encrypted) product-related information codes on the basis of the codes, the product-related information code written in the initial node is a block header (coding basis) of the new product-related information code generated by the second node, the new product-related information code generated by the second node is a block header (coding basis) of the new product-related information code generated by the subsequent node (third node), and so on, an encoding chain of the product anti-counterfeiting traceability is formed.
In specific implementation, a starting block chain node collects product related information, writes the product related information (with a timestamp and encrypted) into the starting block chain node based on a next block chain link point public key, reads (decrypts) the product related information (with the timestamp and encrypted) written by the starting block chain node, writes the product related information (with the timestamp and encrypted) into the next block chain node based on a next block chain link point public key of the next block chain node, and forms an anti-counterfeiting traceability chain of the product related information by analogy;
the current blockchain node hashes the product-related information and writes the hash value into the current blockchain node based on the current blockchain node private key.
The current blockchain node reads (decrypts) the (time-stamped and encrypted) product-related information written by the last block link point based on the private key of the current node, and writes the (time-stamped and encrypted) product-related information into the current blockchain node based on the public key of the last block link point;
and the last block link point reads (decrypts) the (time-stamped and encrypted) product related information written in by the current block link point based on the last block link point private key, and performs forward anti-counterfeiting traceability verification by contrasting the corresponding relation of the (time-stamped and encrypted) product related information written in by the last block link point based on the current block link node public key.
The starting block chain node performs hash encryption on the product related information and writes a starting hash value into the starting block chain node based on the starting block chain private key;
a current blockchain node (reading) collects relevant information of a product, carries out hash encryption on the relevant information of the product, and writes the hash value into the current blockchain node based on a private key of the current blockchain node;
and the starting block chain node reads the current hash value of the product related information written in the current block chain link based on the public key of any subsequent current block chain node, and compares and verifies the current hash value and the starting hash value to realize anti-counterfeiting traceability, so that all the nodes can realize the forward anti-counterfeiting traceability verification of the whole process across the nodes.
Reading the product related information written in the previous block chain node by the current block chain node, carrying out hash encryption on the related information, generating new product related information, and respectively writing the new product related information hash value into the current block chain node based on the current block chain node and the next block chain node public key.
And the current block chain link point reads the initial hash value of the product related information of the initial block chain link based on the public key of the initial block chain node, and compares (reads) the current hash value and the initial hash value of the collected product related information to verify, thereby realizing the reverse verification of the whole process and cross nodes of the product.
Specifically, in the whole circulation process of the product, the start node groups and combines the collected relevant comprehensive information, indexes, parameters, parts, details, pictures, overall dimensions, weight, quality, textures, colors, structures, videos, data items, bytes, bits and other relevant information data of the product, performs hash encryption, and writes a hash value into the start block node based on the start node public key according to the start node private key. According to the convention of an intelligent contract, at a subsequent node in a product circulation link, according to a current node private key, writing currently acquired relevant information data such as product related comprehensive information, indexes, parameters, local stroke details, pictures, external dimensions, weight, quality, textures, colors, structures, videos, data items, bytes, bits and the like into a current block on the basis of the current node private key. The starting node can read relevant comprehensive information, indexes, parameters, local stroke details, pictures, external dimensions, weight, quality, texture, color, structure, video, data items, bytes, bits and other relevant information data of the current product according to a public key of the current node, hash is carried out according to the previous grouping combination, the hash values corresponding to the grouping combination are compared and verified, and comprehensive information and index comparison verification can be carried out according to the corresponding grouping for forward anti-counterfeiting and traceability verification of cross-node and full flow.
In turn, the start node groups and combines the collected product-related comprehensive information, indexes, parameters, local stroke details, pictures, external dimensions, weight, quality, texture, color, structure, video, data items, bytes, bits and other related information data, performs hash encryption, and writes a hash value into the start block node based on the start node private key according to the start node private key. Acquiring relevant comprehensive information, indexes, parameters, parts, details, pictures, overall dimensions, weight, quality, texture, color, structure, video, data items, bytes, bits and other relevant information data of a current product at a subsequent node of a product circulation link, hashing according to the convention of an intelligent contract and the grouping combination of an initial node to generate a current hash value, reading the hash value of the grouping combination written in the initial node according to a public key of the initial node, comparing the hash value of the current grouping combination with the hash value of the corresponding initial grouping combination, performing reverse verification, and performing comprehensive information and index comparison verification according to the corresponding grouping for cross-node and full-flow reverse anti-counterfeiting and traceability verification.
In the second-hand transaction link of the product, the current product holder (the transferor) can write the private key of the current product holder in the key pair generated based on the intelligent contract into the block information required by the user (the purchaser), and the user (the purchaser) can perform the authentication of the product and the anti-counterfeiting tracing only by the public key of the opposite side (the current product holder), so that zero knowledge proof is achieved. Based on the intelligent block chain contract, when the transaction is completed, the new product holder completes the product authentication based on the public key and the private key pair generated by the intelligent contract agreement, and generates the electronic identity card.
Referring to fig. 2, based on the same design concept, an embodiment of the present invention further provides an anti-fake traceability system based on a block chain, which specifically includes:
the block chain (platform) construction module is used for constructing a product anti-counterfeiting traceability block chain platform based on an intelligent contract; and
a block chain node key pair generation (i.e. intelligent contract) module, configured to generate a public key and a private key pair of each block chain node of the block chain platform one by one, where the private key is used for the block chain node to write information and read information written based on a corresponding public key, the public key is used for reading information written based on a corresponding private key, receiving anti-counterfeiting traceability verification information and receiving information, the public key and the private key of each block chain node are generated in pair, the public key is disclosed to the outside, the private key node is kept secret, only the corresponding private key can be read based on information written based on the public key, only the corresponding public key can be read based on information written based on the private key, information encrypted based on the private key can only be decrypted by the corresponding public key, the node public key is used for receiving information transmitted to the node by other nodes, the node private key is used for reading information transmitted by each node based on the corresponding public key;
specifically, when the product is an information product, a public key and a private key pair of each node in an information product transmission link are successively generated based on a block chain intelligent contract in specific implementation, the key pair is used as the authority of each node for accessing the information product block chain and the authority for uploading information to the information product block chain, the safety of uploading, storing, accessing, interacting and transmitting the information product is realized, zero trust safety is achieved, and the private key of each information product block chain node is used as the unique authority for accessing the information product block chain and is used as the unique authority for uploading, interacting and transmitting the information product in the information product block chain. And
the system comprises an (anti-counterfeiting and tracing) information synchronization module, a two-dimensional code and a verification module, wherein the (anti-counterfeiting and tracing) information synchronization module is used for synchronizing block chain link points with circulation nodes of a product and is used for centralizing and synchronizing public keys of all the block chain link points corresponding to the two-dimensional code opened to the public, and the public verifies the anti-counterfeiting and tracing of the product through the two-dimensional code. And
and the (anti-counterfeiting and tracing) verification module is used for writing anti-counterfeiting tracing verification information with a timestamp into the initial block chain node of the block chain platform based on the public key of the node, decrypting any node of subsequent product circulation by the initial block chain node private key and performing anti-counterfeiting tracing verification of the product cross-node whole flow.
Further, the method is used for writing (time stamped and encrypted) product related information into the current blockchain node by the current blockchain node based on a current block link point private key, writing (time stamped and encrypted) anti-counterfeiting traceability verification related information into the current blockchain node based on a next block link point public key, reading (decrypting) the (time stamped and encrypted) product related information by the next block link point based on the current blockchain node public key, and reading (decrypting) the (time stamped and encrypted) anti-counterfeiting traceability verification related information based on the next block link point private key, thereby completing the anti-counterfeiting traceability verification of the product.
And further, the method is used for writing (encrypted with a timestamp) product related information codes into the current block link point based on the next block link point public key, reading (decrypting) the product (encrypted with a timestamp) related information codes by the next block link point based on the next block link point private key, generating new (encrypted with a timestamp) product related information codes on the basis of the codes, writing the new product information codes into the next block link node based on the secondary node public key, and so on to form a product anti-counterfeiting and source-tracing code chain, so that the tracing and the non-tampering of the product related information are realized.
And further, the starting block chain node is used for writing block information based on the starting block chain node private key, one part of the block information is encrypted by the starting block chain node public key, one part of the block information is encrypted by the sub-block chain link point public key, and the starting block chain node public key encrypted part is used for decrypting the next block chain link point of the sub-block chain link point and is used for cross-node anti-counterfeiting traceability verification.
And further, the method is used for writing the current block link point into block information according to the private key of the current block link point, wherein one part of the block information is encrypted by the public key of the current block link point, one part of the block information is encrypted by the public key of the next block link point, the encrypted part of the public key of the current block link point is used for decrypting the sub-block link point of the next block link node, and the like is used for the whole-process cross-node anti-counterfeiting traceability verification.
Further, the method is used for performing hash encryption on the dynamic product information code generated by the current block link point by the next block link point to generate the new dynamic product information dynamic code, and writing the new dynamic product information dynamic code into the next block link node based on the secondary node public keys of the current block link node and the next block link node respectively.
The current block chain node writes product related information read (collected) by a current node based on a private key of the current block chain node, and writes the product related information based on a public key of a subsequent node which is extended, the subsequent node which is extended reads the product related information according to the private key of the current block chain node, reads the product related information according to a public key of a previous node, and compares the two pieces of product related information to verify that the product and the information are from the previous node, so as to perform reverse anti-counterfeiting tracing verification.
The starting block chain node collects product related information, writes the product related information (with a timestamp and encrypted) into the starting block chain node based on a next block chain link point public key, reads (decrypts) the product related information (with the timestamp and encrypted) written by the starting block chain node, writes the product related information (with the timestamp and encrypted) into the next block chain node based on a next block chain link point public key of the next block chain node, and forms the product related information anti-counterfeiting traceability chain by analogy.
The current blockchain node hashes the product-related information and writes the hash value into the current blockchain node based on the current blockchain node private key.
Further, the node is configured to read (decrypt) the (time-stamped and encrypted) product-related information written by the last block link point based on the private key of the node, and write the (time-stamped and encrypted) product-related information into the current block link node based on the public key of the last block link point.
And the last block link point reads (decrypts) the relevant information (with the timestamp and encrypted) of the product written by the current block link point based on the private key of the last block link point, verifies and confirms the authenticity of the product of the current block link point by contrasting the corresponding relation of the relevant information (with the timestamp and encrypted) of the product written by the last block link point based on the public key of the current block link point, and performs forward anti-counterfeiting traceability verification.
Further, the starting block chain node performs hash encryption on the product related information, and writes a starting hash value into the starting block chain node based on the starting block link private key.
The method comprises the steps that a current blockchain node (reading) collects relevant information of products, carries out hash encryption on the relevant information of the products, and writes a hash value into the current blockchain node based on a private key of the current blockchain node.
And the starting block chain node reads the current hash value of the product related information written in the current block chain link based on the public key of any subsequent current block chain node, and compares and verifies the current hash value and the starting hash value to realize anti-counterfeiting traceability, so that all the nodes can realize the forward anti-counterfeiting traceability verification of the whole process across the nodes.
And further, the node verification method is used for reading the initial hash value of the product related information of the initial block chain link of the current block chain link point based on the public key of the initial block chain node, and comparing and verifying the current hash value and the initial hash value of the collected product related information (read), so that the reverse verification of the whole process and cross nodes of the product is realized.
And
the right confirming module is used for writing a current product holder private key in a key pair generated by a current product holder (a transferor) based on an intelligent contract into block information required by a user (a purchaser) when a product enters a second-hand transaction link, and the user (the purchaser) can carry out right confirming verification and anti-counterfeiting tracing on the product only through a public key of the opposite side (the current product holder), so that zero knowledge proof is achieved. Based on the intelligent block chain contract, when the transaction is completed, the new product holder completes the product authentication based on the public key and the private key pair generated by the intelligent contract agreement, and generates the electronic identity card.
The specific implementation manner of the anti-fake traceability system in this embodiment may refer to the specific implementation manner of the anti-fake traceability method based on the block chain provided in the above embodiment, and the details of the present invention are not repeated herein.
The anti-counterfeiting tracing method and system based on the block chain provided by the embodiment of the invention can fundamentally solve the problem of counterfeiting by copying and transferring the anti-counterfeiting mark in the traditional anti-counterfeiting tracing, effectively avoid the centered artificial operation on the anti-counterfeiting tracing information in the product anti-counterfeiting tracing, realize and solve the problems of the anti-counterfeiting tracing information such as disclosure, transparency, visibility, credibility, no tampering, traceability and the like, further meet and solve the problems of interaction of information, data, digital assets, digital certificates and the like, the information and data modification, counterfeiting, replacement and the like in new product types, and improve and enhance the reputation of participants in the whole process of production, circulation and secondary transaction. The problem of information public credibility in product traceability and anti-counterfeiting can be solved, circulation can be traced, effective tracing is achieved, the problems of counterfeiting and badness in the product circulation process are eliminated, the fraud behaviors of all circulation nodes are stopped, and the business behaviors of all the circulation nodes are standardized.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when executed, the program includes one or any combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. An anti-counterfeiting tracing method based on a block chain is characterized by comprising the following steps:
constructing a product anti-counterfeiting traceability block chain platform based on an intelligent contract;
successively generating a public key and a private key pair of each blockchain node of the blockchain platform, wherein the private key is used for the permission of the blockchain node for writing information and the permission for reading the information written based on the corresponding public key, and the public key is used for the permission for reading the information written based on the corresponding private key;
the current block link point writes the relevant information of the product with the timestamp into the current block link node based on the private key of the current block link point, and writes the anti-counterfeiting traceability verification information with the timestamp into the current block link node based on the public key of the next block link point;
and the next block link point reads the relevant information of the product with the timestamp based on the current block link node public key, and reads the anti-counterfeiting tracing verification information with the timestamp based on the next block link point private key to finish the anti-counterfeiting tracing verification of the product.
2. The anti-counterfeiting tracing method based on the block chain according to claim 1, wherein the block chain nodes are synchronous to circulation nodes of the product, public keys of all the block chain nodes are centralized and synchronously corresponding to two-dimensional codes open to the public, and the public performs anti-counterfeiting tracing verification through the two-dimensional codes;
the starting block chain node writes anti-counterfeiting tracing verification information with a timestamp based on the node public key, and is decrypted by any subsequent node by the starting block chain node private key, so that the starting block chain node is used for cross-node and full-process tracing anti-counterfeiting tracing verification of products.
3. The anti-counterfeiting tracing method based on the blockchain according to claim 1, further comprising: and writing the current block chain node into a product information code with a timestamp based on the next block chain node public key, reading the product information code by the next block chain node based on the next block chain node private key, generating a new product information code with the timestamp on the basis of the code, writing the new product information code into the next block chain node based on the next node public key, and forming an anti-counterfeiting and source-tracing code chain of the product by analogy to realize the tracing and the non-tampering of the product information.
4. The anti-counterfeiting tracing method based on the blockchain according to claim 1, further comprising: the starting block chain node writes block information based on the starting block chain node private key, one part of the block information is encrypted by the starting block chain node public key, one part of the block information is encrypted by the sub-block chain link point public key, the starting block chain node public key encrypted part decrypts the next block chain link point of the sub-block chain link point, and the whole process anti-counterfeiting traceability chain is formed by analogy and is used for whole process and cross-node anti-counterfeiting traceability verification.
5. The anti-counterfeiting tracing method based on the blockchain according to claim 1, further comprising: the starting block chain node collects product related information, writes the product related information into the starting block chain node based on a next block chain link point public key, reads the product related information written by the starting block chain node, writes the product related information into the next block chain node based on a next block chain link point public key of the next block chain node, and forms an anti-counterfeiting traceability chain of the product related information by analogy;
the current blockchain node hashes the product-related information and writes the hash value into the current blockchain node based on the current blockchain node private key.
6. The block chain-based anti-counterfeiting tracing method according to claim 5, wherein the current block chain node reads product-related information written by a previous block chain node based on a private key of the node, and writes the product-related information into the current block chain node based on a public key of the previous block chain node;
and the last block chain link point reads the relevant information of the product written in by the current block chain node based on the private key of the last block chain link point, and performs forward anti-counterfeiting tracing verification by contrasting the corresponding relation of the relevant information of the product written in by the last block chain link point based on the public key of the current block chain node.
7. The anti-counterfeiting tracing method based on the blockchain according to claim 5, wherein the starting blockchain node performs hash encryption on product related information and writes the starting hash value into the starting blockchain node based on the starting blockchain node private key;
and the starting block chain node reads the hash value of the product related information written in by the current block chain node based on the public key of the current block chain node, and compares and verifies the current hash value and the starting hash value to realize anti-counterfeiting traceability, so that all nodes can realize forward anti-counterfeiting traceability verification of a whole process and cross nodes.
8. The anti-counterfeiting tracing method based on the block chain according to claim 7, wherein the current block chain node reads the initial hash value of the product related information of the initial block chain link based on the initial block chain node public key, and compares and verifies the current hash value of the current product related information and the initial hash value, thereby realizing reverse anti-counterfeiting tracing verification of the whole process and cross nodes.
9. The anti-counterfeiting tracing method based on the blockchain according to claim 1, further comprising:
when a product enters a second-hand transaction link, a current product holder writes requirement information of a next block chain link point into a current block chain node according to a private key of a current product holder node of a key pair generated by an intelligent contract according to the requirement of the next block chain link point, and the next block chain link point reads the requirement information based on a node public key of the current product holder, performs authentication and anti-counterfeiting tracing on the product and achieves zero knowledge certification;
and when the transaction is completed, the new product holder completes the product right and generates the product electronic identity card based on the node public key and the private key pair generated by the intelligent contract agreement.
10. An anti-counterfeiting traceability system based on a block chain is characterized by comprising:
the block chain construction module is used for constructing a product anti-counterfeiting traceability block chain platform based on an intelligent contract;
the intelligent contract module is used for successively generating a public key and a private key pair of each block chain node of the block chain platform, wherein the private key is used for the block chain node to write in information and read the information written based on the corresponding public key, and the public key is used for reading the information written based on the corresponding private key; and
the verification module is used for writing relevant information of a product with a timestamp into a current block chain node by the current block chain node based on a private key of the current block chain node, writing anti-counterfeiting traceability verification information with a timestamp into the current block chain node based on a public key of a next block chain node, reading the relevant information of the product with the timestamp by the next block chain node based on the public key of the current block chain node, reading the anti-counterfeiting traceability verification information with the timestamp based on a private key of the next block chain node, and completing the anti-counterfeiting traceability verification of the product.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113379345A (en) * | 2021-05-27 | 2021-09-10 | 芜湖锋珉信息科技有限公司 | Intelligent logistics processing method and system based on trajectory tracking |
| CN113610550A (en) * | 2021-08-26 | 2021-11-05 | 盐城一方信息技术有限公司 | Product tracing method and system based on block chain |
| CN113781070A (en) * | 2021-09-15 | 2021-12-10 | 陈梅 | Anti-counterfeiting product tracing method and system based on block chain |
| CN117057826A (en) * | 2023-10-12 | 2023-11-14 | 深圳市一航网络信息技术有限公司 | Product traceability verification method based on blockchain technology |
| CN117272405A (en) * | 2023-11-21 | 2023-12-22 | 广东省电信规划设计院有限公司 | Data verification method and device applied to blockchain tracing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113379345A (en) * | 2021-05-27 | 2021-09-10 | 芜湖锋珉信息科技有限公司 | Intelligent logistics processing method and system based on trajectory tracking |
| CN113610550A (en) * | 2021-08-26 | 2021-11-05 | 盐城一方信息技术有限公司 | Product tracing method and system based on block chain |
| CN113781070A (en) * | 2021-09-15 | 2021-12-10 | 陈梅 | Anti-counterfeiting product tracing method and system based on block chain |
| CN117057826A (en) * | 2023-10-12 | 2023-11-14 | 深圳市一航网络信息技术有限公司 | Product traceability verification method based on blockchain technology |
| CN117272405A (en) * | 2023-11-21 | 2023-12-22 | 广东省电信规划设计院有限公司 | Data verification method and device applied to blockchain tracing |
| CN117272405B (en) * | 2023-11-21 | 2024-04-12 | 广东省电信规划设计院有限公司 | Data verification method and device applied to blockchain tracing |
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