TWI789652B - A method to prevent tampering and counterfeiting - Google Patents

Abstract

A method that can prevent tampering and forgery is to store the original data in the local database, which can have the real-time and fast transaction of the original data, and perform hash function (Hash function) calculation on the data or multiple data (can be SHA-256 or other hash function), through this Hash mechanism to obtain the feature value (or metadata) of the one or more pieces of data, and upload the Hash feature value or package to the public chain, and The primary key (Prime Key) of the Hash data stored in this public chain, together with the Hash value, is stored in the database at the same time for subsequent query and audit. In this way, there is no need for data to be chained column by column or transaction by transaction, and a certain degree of security of data can be obtained and tampered with.

Description

A method to prevent tampering and counterfeiting

The present invention relates to a method that can prevent tampering and forgery, in particular, it refers to a method that can obtain a certain degree of security of data and avoid tampering without the need for data to be linked column by column or transaction by transaction.

Blockchain is an encrypted shared distributed ledger technology (Distributed Ledger) based on the Internet. Its decentralized characteristics are different from the traditional client-server centralized network architecture. It has traceability and It has many characteristics such as unalterable security and high flexibility to diversify its application. As a trust-providing technology, blockchain has irreplaceable advantages in ensuring that data security is not tampered with and data flow can be traced. With the application of smart contracts, multiple participants without mutual trust can use the blockchain Blockchain technology collaborates on the same platform; At present, all walks of life are actively exploring and trying the possibility of combining blockchain with the industry, expecting to use blockchain technology to solve difficult problems in the industry.

Although the blockchain public chain has an open, transparent and trustworthy mechanism, and the data can be traced and cannot be tampered with, but due to the scattered nodes of the data transmission, and due to the proof of work (Proof of Work, PoW) or proof of rights ( Proof of Stake, PoS) or other consensus decision algorithms need to be verified by the majority. The verification transaction of the public chain takes several minutes to verify the transaction time, and the transaction speed of the public chain ranges from a few to dozens of transactions per second. (Transaction Per Second, TPS); in addition, the cost of on-chaining the public chain has also become a non-negligible cost of data on-chain. Taking the blockchain public chain Ethereum as an example, any operation on Ethereum will be charged a transaction fee ( GAS), if it needs to be applied to the practical system, it is necessary to reduce the cost of on-chain. It is difficult to upload all the data one by one and column by column. However, it is necessary to collect important data or take another data calculation (multiple data for one eigenvalue calculation) before uploading to the chain. . Therefore, general users cannot meet the needs of users in actual use.

The main purpose of the present invention is to overcome the above-mentioned problems encountered in the prior art and provide a method that can prevent tampering and forgery without requiring data to be linked column by column or pen by pen, and can also obtain a certain degree of security of data and avoid tampering. method.

In order to achieve the above purpose, the present invention is a method for preventing tampering and forgery, which is applied to a block chain platform and includes a data storage module and a block chain application programming interface (Application Programming Interface, API) module, a data writing module on the chain, a data query auditing module, a smart contract writing and submitting module, and a block chain public chain interface module for execution, the method at least includes the following steps: Step 1: Provide raw data storage of transportation data through the data storage module; Step 2: Extract the transportation data in at least one data field in the data storage module through the blockchain API module, and write Enter the on-chain module to perform hash function (Hash function) calculation on the at least one piece of transportation data, and obtain the Hash feature value (Hash H ₁ ) of the at least one piece of transportation data; Step 3: Write and submit the module through the smart contract Generate a smart contract and provide it until the data is written into the on-chain module, and the data is written into the on-chain module to bid for the fuel (GAS) of the smart contract on the Hash H ₁ , and interface through the blockchain public chain The module is connected to a public chain, and the Hash H ₁ that has executed the smart contract is packaged and uploaded to the public chain, and the primary key (Prime Key) of the Hash H ₁ stored in the public chain, together with the Hash H ₁ , is passed through The blockchain API module is stored in the data storage module at the same time; and step 4: download a data to be checked from the public chain through the data query audit module, and query the data through the blockchain API module Hash H ₁ of the transportation data designated by the data to be checked in the warehouse module, extract the data to be checked and stored in the data warehouse module, perform hash function calculation on the data to be checked to obtain Hash H ₂ , compare The Hash H ₁ and the Hash H ₂ are used to check whether the data has been falsified or forged from the time when the data storage module writes the data to the time when the data is required to be checked and audited.

In the above-mentioned embodiment of the present invention, the hash function is SHA 256 encryption algorithm or Hash-related hash functions.

In the above-mentioned embodiment of the present invention, when the data query and audit module in step 4 checks that the Hash H ₁ is identical to the Hash H ₂ , it means that the data storage module matches the data of the public chain, and the data to be checked is passed Data audit; when the data query and audit module detects that the Hash H ₁ is different from the Hash H ₂ , it means that the data to be checked in the data storage module has been tampered with.

In the above-mentioned embodiment of the present invention, when the data query and audit module in step 4 cannot find the Hash H ₁ of the transportation data specified by the data to be checked in the data storage module, it represents the data storage module The information to be investigated is later forged.

In the above-mentioned embodiments of the present invention, after the data storage module writes new data, the new data can be uploaded to the public chain automatically, scheduled or in batches.

100: Blockchain Platform

1: Data storage module

2: Blockchain API Module

3: Write data into the chain module

4: Data query audit module

5: Smart contract writing and submission module

6: Blockchain public chain interface module

Step 1 s1~Step 4 s4

s11~s16: steps

s21~s29: steps

Fig. 1 is a schematic flow chart of the present invention.

Figure 2 is a schematic diagram of the architecture of the blockchain platform of the present invention.

Figure 3 is a schematic diagram of the process of data storage and writing into the chain in the present invention.

Figure 4 is a schematic flow chart of the data query and audit of the present invention.

Please refer to "Fig. 1 ~ Fig. 4", which are respectively the schematic diagram of the process of the present invention, the schematic diagram of the structure of the blockchain platform of the present invention, the schematic diagram of the process of storing and writing the data of the present invention to the chain, and the data of the present invention Schematic diagram of the query audit process. As shown in the figure: the present invention is a method that can prevent tampering and forgery, and can be operated by a block chain platform 100. The block chain platform includes a data storage module 1, a block chain application programming interface (Application Programming Interface, API) module 2. It is composed of a data writing module 3, a data query and audit module 4, a smart contract writing and submitting module 5, and a blockchain public chain interface module 6.

The above-mentioned blockchain API module 2 is respectively connected to the data warehouse module 1, the data writing module 3 and the data query audit module 4, and the smart contract writing and submission module 5 is respectively Connect the data into the uplink module 3, the data query audit module 4 and the blockchain public chain interface module 6. The blockchain API module 2 in the blockchain platform 100 is interfaced with the industry-standard Representational State Transfer (Restful API), and will provide extract (GET), add (POST) And delete (DELETE) and other data processing mechanisms, and add permission control functions to this interface, so as to provide other systems, external collaborators or application terminals for interface access. The implementation of the method for preventing tampering and forgery proposed in the present invention with the aforementioned modules is described as follows:

Step 1 s1: Provide raw data storage of transportation data through the data storage module 1 .

Step 2 s2: Extract at least one piece of transportation data in the data storage module 1 through the blockchain API module 2, and use the data to write the at least one piece of transportation data into the uplink module 3 Hash function (Hash function) calculation to obtain the Hash feature value (Hash H ₁ ) of the at least one transportation data.

Step 3 s3: Generate a smart contract through the smart contract writing and submitting module 5 and provide the data to the on-chain module 3, and the data is written to the on-chain module 3 to perform the smart contract transaction on the Hash H ₁ Handling fee (GAS) bid, and connect a public chain 7 through the blockchain public chain interface module 6, package the Hash H ₁ that has executed the smart contract to the public chain 7, and send this The primary key (Prime Key) of the Hash H ₁ stored in the public chain 7, together with the Hash H ₁ , is simultaneously stored in the data storage module 1 through the blockchain API module 2.

Step 4 s4: Use the data query audit module 4 to download a data to be checked from the public chain 7, and query the traffic specified in the data to be checked in the data storage module 1 through the blockchain API module 2 Hash H ₁ of the transportation data, extract the data to be checked stored in the data storage module 1, perform hash function calculation on the data to be checked to obtain Hash H ₂ , compare the Hash H ₁ and the Hash H ₂ to check Whether the data has been tampered with or falsified has occurred in the data storage module 1 from the time when the data is written to the time when the data is required to be checked and audited. If so, a brand-new method that can prevent tampering and forgery is formed by the flow process disclosed above.

When in use, the data writing module 3 of the block chain platform 100 proposed in the present invention and the data query and audit module 4 are independent modules, and the smart contract writing and presentation module 5 is connected to the public chain of the block chain Module 6 provides the sharing of the above-mentioned independent modules. The platform 100 also implements and builds an industry-standard RESTful API (blockchain API module 2) for external collaborators or application-side access.

The flow of data storage and writing of the data into the uplink module 3 is shown in FIG. 3 . First, as in step s11, the platform 100 connects to the data storage module 1 through the blockchain API module 2, and the data storage module 1 provides the original data storage of transportation data. When the data storage module 1 writes new data The chain action of data on the Ethereum public chain is automatically carried out immediately (it can also be scheduled or batched according to demand); in addition, the blockchain itself cannot encrypt the stored data, so it is 100 times before the data is uploaded to the chain. For encryption processing, since the data upload fee (GAS fee) in the blockchain is directly related to the size of the data entity, considering security and usage costs, the SHA 256 encryption algorithm that meets the Hash standard is the best choice. Then as steps s12~s14, the design of this platform 100 will perform SHA 256 Hash calculation immediately when the data is stored, and its Hash H ₁ value will be bid through the GAS of the smart contract, and the Hash H ₁ value will be packaged in steps s15 and s16 Link to the public chain 7, and store the Prime Key of the Hash H ₁ stored in the public chain 7, together with the Hash H ₁ , in the data storage module 1 at the same time to complete the data on-chain.

The data query and audit module 4 is an important function and application of the block chain technology, which can ensure that the security of the data is not tampered with. Whether the data has been falsified or forged during the time when the data is written to the time when the data is required to be queried and audited. The process of data query and audit is shown in Figure 4. First, as in steps s21~s24, download the data to be checked from the Ethereum public chain and specify the Hash H ₁ value of the data in the data warehouse module 1. Next, as in step s25, extract the data to be queried stored in the data storage module 1, and perform Hash H ₂ calculation on the data. Then as in step s26, compare the Hash H ₁ and Hash H ₂ values of the above steps, if the data query audit module 4 checks out that the Hash H ₁ is identical to the Hash H ₂ , then as in step s27, illustrate that the data warehouse Module 1 matches the data of the public chain 7, and the data to be checked has passed the data audit; if the two Hash H ₁ and the Hash H ₂ are not the same, then as step s28 shows, the data to be checked in the data storage module 1 In addition, in step s23, if the Hash H ₁ of the transportation data specified by the data to be checked cannot be found in the block chain, then as in step s29, the Hash H 1 of the transportation data in the data storage module 1 will be explained. The information to be investigated is forged later.

In order to make this blockchain platform available for external collaborators to access and use, and to provide the blockchain application of the Ministry of Communications to provide key projects such as on-chain travel information, query verification and auditing, etc., the present invention implements the construction of application programs The interface (blockchain API module) improves the scalability and reusability of the blockchain platform, and can be used to promote the blockchain platform to the transportation service fields that the Ministry of Communications units or local governments expect to improve in the future area.

In a specific embodiment, the blockchain platform of the present invention can be implemented as a transportation blockchain web operation platform, providing various participants (for example: resource injectors, fleet operators, drivers, passengers, and public parties) Supervision and management parties, etc.) carry out functions such as uploading, querying, verifying, and auditing relevant travel data on this platform. At the same time, it provides regular trip data collection and download, and can also select specific interval data for export and download. , to provide relevant related parties (such as subsidy units) for write-off purposes.

In this way, the present invention adopts the original data to be stored in the local database (that is, the data storage module), which can have the real-time and fast transaction of the original data, and perform Hash calculation on the data or multiple data (which can be SHA- 256 or other hash function), obtain the characteristic value (or metadata) of the data or data through this Hash mechanism, and upload the Hash characteristic value or package to the public chain, and the public chain The Prime Key of the stored Hash data, together with the Hash value, is stored in the data storage module at the same time for subsequent query audits. In this way, there is no need for data to be chained column by column or transaction by transaction, and a certain degree of security of data can be obtained and tampered with.

To sum up, the present invention is a method that can prevent tampering and counterfeiting, and can effectively improve the various shortcomings of conventional use. The original data is stored in the local database, and the real-time and fast transaction of the original data can be obtained. Perform Hash calculation on multiple pieces of data, obtain the feature value of the piece or multiple pieces of data through this Hash mechanism, and upload the Hash feature value or package to the public chain, and store the Prime Key, Prime Key and Together with the Hash value, it is stored in the data storage module at the same time for subsequent query and audit; in this way, it is not necessary to upload the data column by column or transaction by transaction, and can also obtain a certain degree of security of the data and prevent it from being tampered with. The production of the present invention can be more advanced, more practical, and more in line with the needs of users, and has indeed met the requirements for patent applications for inventions, so the patent application should be filed in accordance with the law.

But the above-mentioned ones are only preferred embodiments of the present invention, and should not limit the scope of the present invention; therefore, all simple equivalent changes and modifications made according to the patent scope of the present invention and the contents of the description of the invention , should still fall within the scope covered by the patent of the present invention.

Step 1 s1~Step 4 s4

Claims (5)

A method capable of preventing tampering and forgery, applied to a block chain platform and writing a data storage module, a block chain application program interface (Application Programming Interface, API) module, and a data in the block chain platform Uplink module, a data query and audit module, a smart contract writing and submitting module, and a block chain public chain interface module for execution, the method at least includes the following steps: Step 1: Provide Raw data storage of transportation data; Step 2: Extract at least one data column of transportation data in the data storage module through the blockchain API module, and write the data into the uplink module for at least one data field Carry out hash function (Hash function) calculation on the transportation data to obtain the Hash feature value (Hash H ₁ ) of the at least one piece of transportation data; Step 3: Generate a smart contract through the smart contract writing and submission module and provide it to the data Write the data into the uplink module, the data is written into the uplink module to bid for the transaction fee (GAS) of the smart contract on the Hash H ₁ , and connect a public chain through the blockchain public chain interface module , encapsulate and upload the Hash H ₁ that has executed the smart contract to the public chain, and pass the primary key (Prime Key) of the Hash H ₁ stored in the public chain together with the Hash H ₁ through the blockchain API module At the same time, it is stored in the data storage module; and step 4: download a data to be checked from the public chain through the data query audit module, and query the data to be checked in the data storage module through the blockchain API module Hash H ₁ of the transportation data specified by the data, extract the data to be checked stored in the data storage module, perform hash function calculation on the data to be checked to obtain Hash H ₂ , compare the Hash H ₁ with the Hash H ₂ is used to check whether the data has been falsified or forged from the time when the data is written in the data storage module to the time when the data is required to be checked and audited. According to the method described in item 1 of the scope of the patent application, wherein the hash function is a SHA 256 encryption algorithm or a hash function related to Hash. According to the method described in item 1 of the scope of the patent application, wherein, when the data query and audit module of the step 4 checks that the Hash H ₁ is the same as the Hash H ₂ , it means that the data storage module matches the data of the public chain , the data to be checked has passed the data audit; when the data query and audit module detects that the Hash H ₁ is different from the Hash H ₂ , it means that the data to be checked in the data warehouse module has been tampered with. According to the method described in item 1 of the scope of the patent application, wherein, when the data query and audit module of the step 4 cannot find the Hash H ₁ of the transportation data specified by the data to be checked in the data warehouse module, Indicates that the data to be checked in the data warehouse module is forged later. According to the method described in item 1 of the scope of the patent application, wherein, after the data warehouse module writes new data, the new data can be linked to the public chain automatically, scheduled or batched.

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