CN110852764A - Anti-counterfeiting traceable product identification device and method based on block chain technology - Google Patents
Anti-counterfeiting traceable product identification device and method based on block chain technology Download PDFInfo
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Abstract
The invention discloses an anti-counterfeiting traceable product identification device and method based on a block chain technology. The invention utilizes the characteristics of a distributed account book, non-falsification, multi-party participation, intelligent contracts and the like of the block chain, adopts a mode of generating/recording marks (one object and one code) on a commodity production line and storing the marks into the block chain, provides a consumer with direct inquiry of block chain data to solve the problems of product marks and anti-counterfeiting, and provides first link data 'product birth certificate/identity card' for product tracing/tracing.
Description
Technical Field
The invention relates to the technical field of product supervision and traceability, in particular to an anti-counterfeiting and traceability product identification device and method based on a block chain technology.
Background
The common anti-counterfeiting technology has no uniqueness and exclusivity and low technological content, thereby not playing a real anti-counterfeiting role. Ink anti-counterfeiting technology and two-dimensional laser holographic anti-counterfeiting technology are good examples. The ink anti-fake technology is that some special chemical components are added into ink and the ink is made to produce color change through various kinds of light irradiation. The two-dimensional laser holographic anti-fake technology is to apply laser rainbow holographic drawing technology and mold pressing duplication technology and to add one visible or invisible planar figure during the production of the product. Due to their low technical content, the equipment is not controlled exclusively, which leads to counterfeiting and copying as a picture. The price of the real high-end product is very high, so that the situation of the high-end anti-counterfeiting technical product is very difficult. Anti-counterfeiting products with low technical content can be imitated within a short time, counterfeit goods can easily use the anti-counterfeiting technology at the low end, and finally victims are genuine merchants and consumers. In recent years, as counterfeit commodities are abused, the anti-counterfeiting technology has increasingly prominent effects on identifying and preventing counterfeit commodities, and printing anti-counterfeiting marks on products of the users becomes an effective measure for self protection of famous brand manufacturers and famous and high-quality product manufacturers.
Disclosure of Invention
In view of the above-mentioned shortcomings or drawbacks of the prior art, it is desirable to provide an anti-counterfeiting traceable product identification apparatus and method based on block chain technology.
According to the technical scheme, the anti-counterfeiting traceable product identification device based on the block chain technology is owned by a producer, has a unique identification and a secret key, is butted with a 'block chain-based product identification system' on a production line of products/commodities, records the identification of the products/commodities into a block chain, is used as a node of the block chain system, generates product/commodity identification (one object code) by an online code printing and scanning device on the production line, and records the product/commodity identification into the block chain in real time.
In the invention, the block chain system is one of a private chain, a public chain and a alliance chain, provides a series of functional services of certificate storage, digital identification and key management for an upper layer, and provides a product identification service for a product manufacturer.
The method comprises the following steps of,
(1) product identification device access blockchain network
The product identification device is used as a node of a block chain, and when a block chain network is produced and added, certain processes and steps are needed:
a. a manufacturer needs to acquire a block chain digital identity identifier and needs to be authorized and authenticated when joining the block chain network, namely the product manufacturer obtains permission to join the block chain network and issues a digital certificate through a offline way (network access permission, issuing by an encrypted storage medium, or issuing in an encrypted file form);
b. the production line of a manufacturer also needs to obtain a blockchain digital identity, application, authorization and authentication are completed on line (the application is signed by a digital certificate of the manufacturer and a public key of a blockchain network is encrypted), and the digital certificate is issued on line;
c. similarly, the product identification device also needs to obtain a blockchain digital identity, and completes application, authorization and authentication on line (the application is signed by a digital certificate of a production line, and a public key of a blockchain network is encrypted), and issues a digital certificate on line;
d. the certificate is provided with identification information issued by a block chain network for manufacturers and production lines; meanwhile, the digital identification information of the manufacturer and the production line thereof corresponding to the certificate is recorded on the block chain;
e. the product identification device is provided with a unique physical identification and an asymmetric key pair (the key is generally generated by adopting an elliptic curve algorithm during equipment initialization);
f. before a product identification device accesses a block chain network, a digital certificate needs to be imported into the product identification device;
g. the product identification device is accessed to the block chain network for initialization, an asymmetric key pair is generated, a private key is encrypted and stored locally, and the public key and the physical identification of the product identification device are encrypted by a certificate signature block chain network public key and then uploaded to the block chain network;
h. the block chain network binds the block chain digital identification, the physical identification and the public key of the product identification device with information of manufacturers and production lines;
i. the blockchain network generates a device quota address (generated by a device public key, and a general algorithm is BASE58CHECK (ripemmd 160(SHA256 (device public key)))) for the product identification device;
j. the product identification device is accessed into the network;
(2) product identification quota
Quota is required to be generated for product identification of a manufacturer, and when the quantity of the product identification exceeds the quota, the blockchain network does not record
a. A manufacturer reports a production plan and corresponding product information to a block chain network through a product identification device;
b. after the auditing, the blockchain network generates a quota identification record (globally unique), and distributes quota to a device quota address (generated by a device public key, and a general algorithm is BASE58CHECK (RIPEMD160(SHA256 (device public key)))) in the form of utxo (open Transaction output);
(3) coding and code scanning
After the device obtains the product identification quota, the code printing and the code scanning can be carried out
The code printing device has a jet printing function and a writing-in function, autonomously generates a product identifier, jet prints a two-dimensional code generated by the identifier on a product package, and can write the identifier into an identifier medium in the product package (an electronic tag medium uses RFID and an NFC passive chip);
the code scanning is to scan a two-dimensional code printed on the product package in advance, and can also be to read a mark in a mark medium in the product package;
(4) product identification information chaining
The product identification chain entering can adopt two modes of real-time chain entering and batch chain entering
After the device prints and scans the codes, the product identification is uploaded to the blockchain network in a quota spending (UTXO transaction) mode, the product identification is associated with the quota identification record in the blockchain network after the blockchain network verifies the quota UTXO successfully, and when a consumer scans the product identification code through the mobile APP, corresponding manufacturer and product information can be found from the blockchain network.
In the invention, the data records in the text are all described in JSON format; UTXO, un transaction output, is an Unspent transaction output; the data format is described in accordance with the Google Protocol Buffer standard.
To sum up, the beneficial effect of this application: the invention utilizes the characteristics of a distributed account book, non-falsification, multi-party participation, intelligent contracts and the like of the block chain, adopts a mode of generating/recording marks (one object and one code) on a commodity production line and storing the marks into the block chain, provides a consumer with direct inquiry of block chain data to solve the problems of product marks and anti-counterfeiting, and provides first link data 'product birth certificate/identity card' for product tracing/tracing.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic diagram of a logical structure of a product identification device.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
A product identification device based on block chain technology and capable of preventing counterfeiting and tracing is owned by a producer, the device is provided with a unique identification and a secret key, a 'block chain-based product identification system' is butted on a production line of products/commodities, the identification of the products/commodities is recorded in a block chain, the device serves as a node of the block chain system, and an online code printing and scanning device generates a product/commodity identification (one object code) on the production line and records the product/commodity identification (one object code) in the block chain in real time. The block chain system is one of a private chain, a public chain and a alliance chain, provides a series of functional services of certificate storage, digital identification and key management for an upper layer, and provides a product identification service for a product manufacturer.
An anti-counterfeiting and traceable product identification method based on a block chain technology comprises the following steps,
(1) product identification device access blockchain network
The product identification device is used as a node of a block chain, and when a block chain network is produced and added, certain processes and steps are needed:
a. a manufacturer needs to acquire a block chain digital identity identifier and needs to be authorized and authenticated when joining the block chain network, namely the product manufacturer obtains permission to join the block chain network and issues a digital certificate (network access permission, issuing in an encrypted storage medium mode or in an encrypted file mode) through a offline way;
b. the production line of a manufacturer also needs to obtain a blockchain digital identity, application, authorization and authentication are completed on line (the application is signed by a digital certificate of the manufacturer and a public key of a blockchain network is encrypted), and the digital certificate is issued on line;
c. similarly, the product identification device also needs to obtain a blockchain digital identity, and completes application, authorization and authentication on line (the application is signed by a digital certificate of a production line, and a public key of a blockchain network is encrypted), and issues a digital certificate on line;
d. the certificate is provided with identification information issued by a block chain network for manufacturers and production lines; meanwhile, the digital identification information of the manufacturer and the production line thereof corresponding to the certificate is recorded on the block chain;
e. the product identification device is provided with a unique physical identification and an asymmetric key pair (the key is generally generated by adopting an elliptic curve algorithm during equipment initialization);
f. before a product identification device accesses a block chain network, a digital certificate needs to be imported into the product identification device;
g. the product identification device is accessed to the block chain network for initialization, an asymmetric key pair is generated, a private key is encrypted and stored locally, and the public key and the physical identification of the product identification device are encrypted by a certificate signature block chain network public key and then uploaded to the block chain network;
h. the block chain network binds the block chain digital identification, the physical identification and the public key of the product identification device with information of manufacturers and production lines;
i. the blockchain network generates a device quota address (generated by a device public key, and a general algorithm is BASE58CHECK (ripemmd 160(SHA256 (device public key)))) for the product identification device;
j. the product identification device is accessed into the network;
(2) product identification quota
Quota is required to be generated for product identification of a manufacturer, and when the quantity of the product identification exceeds the quota, the blockchain network does not record
a. A manufacturer reports a production plan and corresponding product information to a block chain network through a product identification device;
b. after the auditing, the blockchain network generates a quota identification record (globally unique), and distributes quota to a device quota address (generated by a device public key, and a general algorithm is BASE58CHECK (RIPEMD160(SHA256 (device public key)))) in the form of utxo (open Transaction output);
(3) coding and code scanning
After the device obtains the product identification quota, the code printing and the code scanning can be carried out
The code printing device has the functions of jet printing and writing, can autonomously generate product identification, jet prints a two-dimensional code generated by the identification on product packaging, can write the identification into an identification medium in the product packaging (the electronic tag medium uses RFID and NFC passive chip),
the code scanning is to scan a two-dimensional code printed on the product package in advance and also can read the mark in the mark medium in the product package;
(4) product identification information chaining
The product identification chain entering can adopt two modes of real-time chain entering and batch chain entering
After the device prints and scans the codes, the product identification is uploaded to the blockchain network in a quota spending (UTXO transaction) mode, the product identification is associated with the quota identification record in the blockchain network after the blockchain network verifies the quota UTXO successfully, and when a consumer scans the product identification code through the mobile APP, corresponding manufacturer and product information can be found from the blockchain network.
A product identification method based on block chain technology and capable of preventing counterfeiting and tracing is characterized in that data records are described in JSON format; UTXO, un Transaction Output, is an Unspent Transaction Output; the data format is described in accordance with the google protocol Buffer standard.
Example 1
Example 2
Example 3
Example 4
UTXO record information
{
string source Tx Data Hash is 1; // Source transaction hashing
string ═ 2; // Source transaction sequence code
string quotald is 3; // quota identification
int64 value ═ 4; // quota amount
string addr is 5; // device address
Timestamp unitl 6; // time to schedule production
byte script ═ 7; // public key script
Timestamp createdAt ═ 8; // creation time
string found 9; // creator
}
The algorithm steps of BASE58CHECK (RIPEMD160(SHA256)) are:
a)A＝SHA256(public key)
b)B＝RIPEMD160(A)
c)Address＝BASE58CHECK(B)
the hash value used by the SHA256 algorithm is 256 bits in length, which is an abstract class, and the only implementation of this class is SHA256 Managed.
RIPEMD (RACE Integrity verification Message Digest), was proposed by Hans Dobbertin et al 3 in 1996 on the basis of md4, md 5. The algorithm has a total of 4 criteria 128, 160, 256 and 320, with corresponding output lengths of 16 bytes, 20 bytes, 32 bytes and 40 bytes, respectively. However, it is difficult to believe that the designers of ripemms have not really designed the 2 criteria of 256 and 320 bits at all, but they have modified the initial parameters and s-box on a 128 bit and 160 bit basis to achieve 256 and 320 bits outputs. Therefore, 256 bits of intensity are equivalent to 128 bits, while 320 bits of intensity are equivalent to 160 bits. RIPEMD is based on md, so it adds data exactly the same way as md 5.
BASE58 CHECK: the modified Base58 binary-to-text encoding is referred to as Base58Check, and is used to encode bitcoin addresses. Colloquially, the Base58Check code is used to encode byte arrays in bitcoins as classifiable, easy-to-read strings. The Base58Check has the following functions: a payload of arbitrary size, a set of 58 alphanumeric symbols, consisting of easily distinguishable upper and lower case letters (00 II not used), one byte of version/application information. The bitcoin address uses 0x00 for this byte (future possibilities use 0x05), four bytes (32 bits) based on the SHA256 error check code. This code can be used for the additional step of automatically detecting and possibly correcting typographical errors, preserving the zero-start in the data.
The RFID and NFC passive chips are both electronic tag media, the electronic tag is a non-contact automatic identification technology, a target object is identified and relevant data is acquired through radio frequency signals, manual intervention is not needed in identification, and the electronic tag serves as a wireless version of a bar code.
JSON (JavaScript Object Notation) is a lightweight data exchange format. It stores and represents data in a text format that is completely independent of the programming language, based on a subset of ECMAScript (js specification set by the european computer association). The compact and clear hierarchy makes JSON an ideal data exchange language.
Protocol buffer (hereinafter referred to as PB) is a data exchange format of google, and is language independent and platform independent. google provides an implementation in multiple languages: java, c #, c + +, go, and python, each implementation containing a compiler and library files for the corresponding language. Since it is a binary format, it is much faster than exchanging data using xml. It can be used for data communication between distributed applications or data exchange in heterogeneous environments. As a binary data transmission format excellent in efficiency and compatibility, it can be used in various fields such as network transmission, profile, data storage, and the like.
An elliptic curve refers to a plane curve determined by the welts-trass (Weierstrass) equation y2+ a1xy + a3y ═ x3+ a2x2+ a4x + a 6. If F is a field, ai ∈ F, i ═ 1,2, …, 6. The couple (x, y) satisfying equation 1 is referred to as a point of the elliptic curve E on the F domain. The F domain may be a rational number domain or may be a finite field gf (pr). The elliptic curve is generally denoted by E. In addition to all points of curve E, a special point O called the infinity point is added.
In Elliptic Curve Cryptography (ECC), some special form of elliptic curve is utilized, i.e. an elliptic curve defined over a finite field. The equation is as follows:
y2＝x3+ax+b(mod p)
where p is a prime number, a and b are two non-negative integers less than p which satisfy:
4a3+27b2(mod p) ≠ 0 where x, y, a, b ∈ Fp, the point (x, y) satisfying the formula (2) and an infinite point O constitute an elliptic curve E.
The elliptic curve discrete logarithm problem ECDLP is defined as follows: given a prime number P and an elliptic curve E, a positive integer k smaller than P is found for Q ═ kP, given P, Q. It can be proved that k and P are known to be easier to calculate Q, and k is known to be more difficult to calculate by Q and P, so that no effective method is available to solve the problem, which is the principle of the elliptic curve encryption algorithm.
The foregoing description is only exemplary of the preferred embodiments of the application and is provided for the purpose of illustrating the general principles of the technology and the like. Meanwhile, the scope of the invention according to the present application is not limited to the technical solutions in which the above-described technical features are combined in a specific manner, and also covers other technical solutions in which the above-described technical features or their equivalent are combined arbitrarily without departing from the inventive concept described above. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (4)
1. A block chain technology-based anti-counterfeiting traceable product identification device is characterized in that: the producer possesses a unique identifier and a secret key, and the device is used for docking a 'block chain-based product identification system' on a production line of products/commodities, recording the identifiers of the products/commodities into a block chain, serving as a node of the block chain system, generating product/commodity identifiers (one object code) by an online code printing and scanning device on the production line, and recording the product/commodity identifiers (one object code) into the block chain in real time.
2. The block chain technology-based anti-counterfeiting traceable product identification device according to claim 1, wherein: the block chain system is one of a private chain, a public chain and a alliance chain, provides a series of functional services of certificate storage, digital identification and key management for an upper layer, and provides a product identification service for a product manufacturer.
3. An anti-counterfeiting traceable product identification method based on a block chain technology is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
(1) product identification device access blockchain network
The product identification device is used as a node of a block chain, and when a block chain network is produced and added, certain processes and steps are needed:
a. a manufacturer needs to acquire a block chain digital identity identifier and needs to be authorized and authenticated when joining the block chain network, namely the product manufacturer obtains permission to join the block chain network and issues a digital certificate (network access permission, issuing in an encrypted storage medium mode or in an encrypted file mode) through a offline way;
b. the production line of a manufacturer also needs to obtain a blockchain digital identity, application, authorization and authentication are completed on line (the application is signed by a digital certificate of the manufacturer and a public key of a blockchain network is encrypted), and the digital certificate is issued on line;
c. similarly, the product identification device also needs to obtain a blockchain digital identity, and completes application, authorization and authentication on line (the application is signed by a digital certificate of a production line, and a public key of a blockchain network is encrypted), and issues a digital certificate on line;
d. the certificate is provided with identification information issued by a block chain network for manufacturers and production lines; meanwhile, the digital identification information of the manufacturer and the production line thereof corresponding to the certificate is recorded on the block chain;
e. the product identification device is provided with a unique physical identification and an asymmetric key pair (the key is generally generated by adopting an elliptic curve algorithm during equipment initialization);
f. before a product identification device accesses a block chain network, a digital certificate needs to be imported into the product identification device;
g. the product identification device is accessed to the block chain network for initialization, an asymmetric key pair is generated, a private key is encrypted and stored locally, and the public key and the physical identification of the product identification device are encrypted by a certificate signature block chain network public key and then uploaded to the block chain network;
h. the block chain network binds the block chain digital identification, the physical identification and the public key of the product identification device with information of manufacturers and production lines;
i. the blockchain network generates a device quota address (generated by a device public key, and a general algorithm is BASE58CHECK (ripemmd 160(SHA256 (device public key)))) for the product identification device;
j. the product identification device is accessed into the network;
(2) product identification quota
Quota is required to be generated for product identification of a manufacturer, and when the quantity of the product identification exceeds the quota, the blockchain network does not record
a. A manufacturer reports a production plan and corresponding product information to a block chain network through a product identification device;
b. after the auditing, the blockchain network generates a quota identification record (globally unique), and distributes quota to a device quota address (generated by a device public key, and a general algorithm is BASE58CHECK (RIPEMD160(SHA256 (device public key)))) in the form of utxo (un (explicit transaction output)));
(3) coding and code scanning
After the device obtains the product identification quota, the code printing and the code scanning can be carried out
The code printing device has the functions of jet printing and writing, can autonomously generate product identification, jet prints a two-dimensional code generated by the identification on product packaging, can write the identification into an identification medium in the product packaging (the electronic tag medium uses RFID and NFC passive chip),
the code scanning is to scan a two-dimensional code printed on the product package in advance and also can read the mark in the mark medium in the product package;
(4) product identification information chaining
The product identification chain entering can adopt two modes of real-time chain entering and batch chain entering
After the device prints and scans the codes, the product identification is uploaded to the blockchain network in a quota spending (UTXO transaction) mode, the product identification is associated with the quota identification record in the blockchain network after the blockchain network verifies the quota UTXO successfully, and when a consumer scans the product identification code through the mobile APP, corresponding manufacturer and product information can be found from the blockchain network.
4. The method for identifying an anti-counterfeiting traceable product based on the block chain technology as claimed in claim 3, wherein the method comprises the following steps: the text data records are all described in a JSON format;
UTXO, un Transaction Output, is an Unspent Transaction Output;
the data format is described in accordance with the Google Protocol Buffer standard.
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| CN111586161A (en) * | 2020-05-06 | 2020-08-25 | 国网安徽省电力有限公司信息通信分公司 | Electrical test data tracing method based on block chain |
| CN113627959A (en) * | 2021-09-29 | 2021-11-09 | 支付宝(杭州)信息技术有限公司 | Method and device for generating digital identity of geographic marking product |
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