CN108646983A - The treating method and apparatus of storage service data on block chain - Google Patents

Abstract

The invention discloses a kind for the treatment of method and apparatus of the storage service data on block chain.Wherein, this method includes：Business datum is obtained, and defines the type of transaction of business datum；Based on construction method corresponding with type of transaction, the target data to be uploaded to block chain network is built according to business datum；It will be in target data storage to the block chain of corresponding node in block chain network.The present invention solves in the prior art, since the data recorded on block chain only have transaction data not have business datum, in the case that business datum is tampered, and the technical issues of being unable to ensure information security.

Description

Processing method and device for storing business data on block chain

technical field

The present invention relates to the field of the Internet, in particular to a processing method and device for storing business data on a block chain.

Background technique

In the field of Internet information technology, some business data is usually stored in the database of a central server, but once the central server is attacked, the data is likely to be tampered with or lost, causing immeasurable losses. In order to solve this problem, Bitcoin proposed blockchain technology. However, Bitcoin only writes the transaction data in the concept of economics into the blockchain, but does not record some functional business data into the blockchain. Therefore, in response to this situation, it is necessary to develop a method for writing functional data into the blockchain.

In the above-mentioned prior art, since the data recorded on the blockchain only has transaction data but no business data, when the business data is tampered with, information security cannot be ensured, and no effective solution has been proposed yet.

Contents of the invention

The embodiment of the present invention provides a processing method and device for storing business data on the block chain to at least solve the problem in the prior art that when the business data is tampered Under the circumstances, it is impossible to ensure the technical problems of information security.

According to an aspect of an embodiment of the present invention, a method for processing business data is provided, including: obtaining business data, and defining the transaction type of the business data; based on the construction method corresponding to the transaction type, constructing the The target data of the block chain network; store the target data on the block chain of the corresponding node in the block chain network.

According to another aspect of the embodiments of the present invention, there is also provided a processing device for business data, including: an acquisition unit, configured to acquire business data, and define a transaction type of the business data; a construction unit, configured to The construction method constructs the target data to be uploaded to the block chain network according to the business data; the storage unit is used to store the target data on the block chain of the corresponding node in the block chain network.

In the embodiment of the present invention, by acquiring business data and defining the transaction type of the business data; based on the construction method corresponding to the transaction type, constructing the target data to be uploaded to the block chain network according to the business data; storing the target data in the block On the block chain of the corresponding node in the block chain network, the purpose of storing business data in the block chain to prevent business data from being tampered with is achieved, thereby achieving the technical effect of improving the security of business data, and then solving the problem of existing technology Among them, since the data recorded on the blockchain only has transaction data and no business data, when the business data is tampered with, the technical problem of information security cannot be ensured.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is a flow chart of a processing method for storing business data on a block chain according to an embodiment of the present invention;

Fig. 2 is a flow chart of an optional processing method for storing business data on a block chain according to an embodiment of the present invention;

FIG. 3 is a flow chart of an optional method for generating blockchain data according to an embodiment of the present invention;

Fig. 4 is a flow chart of an optional method for writing business data on the block chain according to an embodiment of the present invention; and

Fig. 5 is a schematic diagram of a processing device for storing business data on a blockchain according to an embodiment of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

According to an embodiment of the present invention, an embodiment of a processing method for storing business data on a block chain is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be performed on a computer such as a set of computer-executable instructions system, and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

Fig. 1 is a flow chart of a processing method for storing business data on a block chain according to an embodiment of the present invention. As shown in Fig. 1, the method includes the following steps:

Step S102, acquiring business data and defining transaction types of the business data.

Specifically, the above business data may be some functional business data associated with the transaction, including but not limited to electricity data, user data (for example, registration, login, access, voting, etc.). These business data can be expanded into a transaction and recorded on the blockchain. The above transaction types may be the types of transactions to which the business data belongs, that is, different business data may have different calculation and transaction methods. Therefore, after obtaining the business data, at least the transaction type of the business data must be obtained. Calculation or transaction rules or methods to determine business data according to this transaction type.

In an optional embodiment, the functional business data can be stored in the database, and the transaction type of the business data can be defined in the configuration file.

Step S104, based on the construction method corresponding to the transaction type, construct the target data to be uploaded to the blockchain network according to the business data.

Specifically, after determining the type of the business data according to the acquired business data, the corresponding target data to be uploaded to the blockchain network can be constructed according to the business data based on the construction method corresponding to the transaction type.

As an optional embodiment, according to the transaction type defined in the configuration file, the transaction process of business data can be designed, specifically, the shared transaction data can be constructed, and the method of the corresponding class can be called according to different types of transactions to process the business data , when constructing the target data to be uploaded to the blockchain network, according to the functional requirements, the construction method of the functional business class can be called to construct the business transaction data, and the functional business data and the main process data can be used to construct the target data.

Step S106, storing the target data on the blockchain of the corresponding node in the blockchain network.

Specifically, after the target data to be uploaded to the blockchain network is constructed through the above step S104, the target data is stored on the blockchain of the corresponding node in the blockchain network.

It can be seen from the above that in the above-mentioned embodiments of the present application, after obtaining the business data of any kind of business, based on the construction method corresponding to the type of transaction, the business data to be uploaded to the block chain network is constructed according to the obtained business data. Target data, and store the built target data on the blockchain of the corresponding node in the blockchain network, so as to achieve the purpose of storing business data in the blockchain to prevent business data from being tampered with, thereby realizing the improvement of business data. The technical effect of security further solves the technical problem that in the existing technology, because the data recorded on the blockchain only has transaction data and no business data, when the business data is tampered with, the technical problem of information security cannot be ensured.

It should be noted that, in order to ensure the accuracy of the data stored on the blockchain, when uploading the target data to be uploaded to the blockchain network, as an optional example, as shown in Figure 2 As shown, the following steps may be included:

Step S202, generating identification information of the target data in the blockchain network;

Step S204, verifying the validity of the target data based on the identification information;

Step S206, in the case of verifying that the target data is legal, store the target data on the block chain of the corresponding node in the block chain network.

Optionally, generating the identification information of the target data in the blockchain network may include the following steps: generating a corresponding hash value according to the target data; and generating identification information of the target data in the blockchain network according to the hash value.

Optionally, generating a corresponding hash value according to the target data includes: performing encryption processing on the target data to obtain encrypted data, wherein the encryption processing includes at least one of the following: encrypting with a key, adding a digital signature; The encrypted data generates a corresponding hash value.

Optionally, generating the identification information of the target data in the blockchain network according to the hash value may include: converting the hash value into a corresponding hexadecimal value, and using the hexadecimal value as the target data in the block Identification information in the blockchain network.

Optionally, before generating the identification information of the target data in the blockchain network according to the hash value, the above method may further include: performing encryption processing on the hash value, wherein the encryption processing includes at least one of the following: Key encryption, add digital signature.

In an optional embodiment, the above-mentioned identification information may be the transaction ID corresponding to the target data, adding a timestamp and signature to the target data, and generating the corresponding transaction ID based on the hash algorithm, specifically, as an optional The implementation method can obtain the current time and record the transaction timestamp, introduce the encryption and decryption module Crypto module of Node.js to encrypt, pass the Ed25519 component signature authentication, and generate a simple hash value for the signed target data through the sha256 hash algorithm . Optionally, the signature algorithm Ed25519 can also be used to sign the hash value plus the key. Further, the generated hash value can also be encrypted again, and the encrypted hash value (binary number) can be multi-aryed (for example, hexadecimal) to generate a corresponding transaction ID.

Optionally, as an optional embodiment, verifying the validity of the target data based on the identification information may include the following steps: performing business verification on the target data; information to verify the legitimacy of the target data.

Specifically, when verifying the legitimacy of the target data, it is necessary not only to verify the transaction ID, signature, time stamp and other information of the target data, but also to verify the business logic of the target data. For example, when the business data is electricity In the case of data, it is necessary to verify whether the power data conforms to the power calculation rules, etc.

Optionally, when the target data passes business verification, verifying the legitimacy of the target data based on the identification information may include: when the target data passes the business verification, based on the identification information, judging Whether the target data exists; if the target data does not exist on the target blockchain, based on the identification information, the legitimacy of the target data is verified.

Wherein, as an optional implementation, storing the target data on the block chain of the corresponding node in the block chain network may include the following steps: if the target data is recorded on the target block chain, the block chain Other nodes in the network synchronize the target data to the corresponding blockchain; if the target data is not recorded on the target blockchain, the nodes of the target blockchain broadcast the target data to other nodes on the blockchain network, Among them, the target data verified by any node is stored in the corresponding blockchain.

Specifically, after the legality of the target data is verified, the target data that has not been confirmed by the blockchain network nodes needs to be broadcast through the P2P network. After the broadcast, it may be verified by any node and recorded in the blockchain; if When the target data is written into the block by a node of the blockchain network, other nodes will synchronize the block (including transactions), then verify it, and solve the fork problem. Use blockchain technology for synchronization, and insert it into your own blockchain database after other nodes verify successfully.

As a preferred embodiment, Fig. 3 is a flow chart of an optional method for generating blockchain data according to an embodiment of the present invention. As shown in Fig. 3, when constructing the target data to be uploaded to the blockchain network After that, you can add a time stamp to the target data to be uploaded to the blockchain, and encrypt the target data after adding the time stamp to generate a corresponding hash value, and then use the key provided by the business party to add a number to the hash value Signature, and perform hexadecimal processing on the target data with the digital signature to obtain the identification information (for example, transaction ID) of the target data, so as to upload to the block chain network based on the identification information.

As a preferred embodiment, Fig. 4 is a flow chart of an optional method for writing business data on the blockchain according to an embodiment of the present invention, as shown in Fig. 4, including the following steps:

(1) Create a configuration file to define transaction types, including but not limited to functional transactions and transfer transactions;

(2) Store some created or collected functional business data in the database for later query when constructing transaction data;

(3) Import user data, including user password (private key), address and other data;

(4) Use the previous user data to construct the public data of the transaction, which will be used for digital signature and verification functions in the following steps.

(5) After the previous step, build business data by judging the transaction type and calling the corresponding method of the corresponding transaction type.

(6) Combine the data constructed in the previous two steps into a complete transaction data.

(7) Sign the transaction to prevent the data from being tampered with during the propagation process. Here, for example, the data of the electric meter is written into the transaction.

(8) Perform a series of processing such as hash on the transaction to generate a transaction ID for later verification.

(9) Perform further processing on the transaction according to the requirements (for example, processing operations such as rounding and rounding of the power data).

(10) Verify the legitimacy of the transaction again to prevent illegal data from being generated during processing.

(11) Verify again whether the functional business data has been tampered with to prevent changes during processing.

(12) Determine whether the transaction exists, and if so, no follow-up processing will be performed.

(13) If the transaction does not exist, the signature, timestamp and other information of the transaction will be verified.

(14) At this time, another thread of the system will generate a block every 16 seconds, and will write unconfirmed transactions into the last generated block.

(15) If the transaction has not been written in time in the future, the transaction will be broadcasted through the p2p network, thus realizing distributed storage and preventing data loss or tampering after a single node is attacked.

(16) After broadcasting, it may be recorded into the blockchain by any node after verification.

(17) If the transaction is written into the block, other nodes will synchronize the block (including the transaction), then verify it, and solve the fork problem.

(18) Save the blocks and transactions to the local database after the verification is passed.

Through the above-mentioned embodiments of this application, each time the entire network is upgraded, some functional transaction types can be added at the bottom layer according to the needs. Compared with smart contracts, the analysis of this method is relatively simple, the management cost is low, and the pertinence is strong.

According to an embodiment of the present invention, a device embodiment for implementing the above-mentioned processing method for storing business data on a blockchain is also provided. FIG. 5 is a method for storing business data on a blockchain according to an embodiment of the present invention. A schematic diagram of a processing device of , as shown in FIG. 5 , the device includes: an acquisition unit 501 , a construction unit 503 and a storage unit 505 .

Wherein, the obtaining unit 501 is used to obtain business data and define the transaction type of the business data;

The construction unit 503 is used to construct the target data to be uploaded to the block chain network according to the business data based on the construction method corresponding to the transaction type;

The storage unit 505 is configured to store the target data on the blockchain of the corresponding node in the blockchain network.

It should be noted here that the acquisition unit 501, construction unit 503, and storage unit 505 above correspond to steps S102 to S106 in the method embodiment, and the examples and application scenarios implemented by the above-mentioned modules are the same as those of the corresponding steps, but are not limited to the above-mentioned The content disclosed in the method embodiment. It should be noted that, as a part of the apparatus, the above-mentioned modules can be executed in a computer system such as a set of computer-executable instructions.

It can be seen from the above that, in the above-mentioned embodiments of the present application, after obtaining the business data of any type of business through the acquisition unit 501, the construction unit 503 constructs a The target data to be uploaded to the block chain network, and store the constructed target data on the block chain of the corresponding node in the block chain network through the storage unit 505, so as to store the business data in the block chain to prevent the business data The purpose of being tampered with, thereby achieving the technical effect of improving the security of business data, and then solving the problem in the prior art, since the data recorded on the blockchain only has transaction data and no business data, when the business data is tampered with, Technical issues that cannot ensure information security.

In an optional example, the above-mentioned storage unit may include: a generating module, configured to generate identification information of the target data in the blockchain network; a verification module, configured to verify the legitimacy of the target data based on the identification information ; The storage module is used to store the target data on the block chain of the corresponding node in the block chain network under the condition of verifying that the target data is legal.

Optionally, the above-mentioned generation module may include: a first generation sub-module for generating a corresponding hash value according to the target data; a second generation sub-module for generating the target data according to the hash value in the block chain network Identification information in .

Optionally, the above-mentioned first generation submodule is also used to encrypt the target data to obtain encrypted data, and generate a corresponding hash value according to the encrypted data, wherein the encryption processing includes at least one of the following: Encrypt with a key and add a digital signature.

Optionally, the above-mentioned second generating submodule is also used to convert the hash value into a corresponding hexadecimal value, and use the hexadecimal value as the identification information of the target data in the blockchain network.

In an optional embodiment, the above-mentioned device may further include: an encryption module, configured to perform encryption processing on the hash value, wherein the encryption processing includes at least one of the following: encrypting with a key, and adding a digital signature.

In an optional embodiment, the verification module is further configured to perform business verification on the target data, and verify the validity of the target data based on the identification information when the target data passes the business verification.

In an optional embodiment, the above verification module is also used to judge whether the target data exists on the target blockchain based on the identification information when the target data passes the business verification, and there is no target data on the target blockchain. In the case of data, based on the identification information, the legality of the target data is verified.

In an optional embodiment, the above-mentioned storage unit includes: a synchronization module, used for other nodes in the blockchain network to synchronize the target data to the corresponding blockchain if the target data is recorded on the target blockchain ; Propagation module, used for if the target data is not recorded on the target block chain, the node of the target block chain broadcasts the target data to other nodes on the block chain network, wherein, the target data verified by any node are stored on the corresponding blockchain.

According to an embodiment of the present invention, a storage medium is also provided, and the storage medium includes a stored program, wherein the program executes the optional or preferred processing of storing business data on the blockchain in any one of the above method embodiments method.

According to an embodiment of the present invention, there is also provided a processor, characterized in that the processor is used to run a program, wherein, when the program is running, any one of the above method embodiments is optionally or preferably performed on the block chain The processing method for storing business data.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

In the above-mentioned embodiments of the present invention, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed technical content can be realized in other ways. Wherein, the device embodiments described above are only illustrative. For example, the division of the units may be a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integrate into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of units or modules may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes. .

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. a kind of processing method of the storage service data on block chain, which is characterized in that including：

Business datum is obtained, and defines the type of transaction of the business datum；

Based on construction method corresponding with the type of transaction, built according to the business datum to be uploaded to block chain network Target data；

It will be in target data storage to the block chain of corresponding node in block chain network.

2. according to the method described in claim 1, it is characterized in that, by corresponding in target data storage to block chain network On the block chain of node, including：

Generate identification information of the target data in the block chain network；

Based on the identification information, the legitimacy of the target data is verified；

In the case where the verification target data is legal, by target data storage to corresponding node in block chain network On block chain.

3. according to the method described in claim 2, it is characterized in that, generate the target data the block chain network mark Know information, including：

According to the target data, corresponding cryptographic Hash is generated；

According to the cryptographic Hash, identification information of the target data in the block chain network is generated.

4. according to the method described in claim 3, it is characterized in that, according to the target data, corresponding cryptographic Hash is generated, is wrapped It includes：

The target data is encrypted, encrypted data are obtained, wherein the encryption include it is following at least One of：Using key encryption, addition digital signature；

According to the encrypted data, corresponding cryptographic Hash is generated.

5. according to the method described in claim 3, it is characterized in that, according to the cryptographic Hash, the target data is generated in institute The identification information in block chain network is stated, including：

The cryptographic Hash is converted into corresponding hexadecimal values, is existed the hexadecimal values as the target data Identification information in the block chain network.

6. according to the method described in claim 5, it is characterized in that, according to the cryptographic Hash, generates the target data and exist Before identification information in the block chain network, the method further includes：

The cryptographic Hash is encrypted, wherein the encryption includes at least one following：Encrypted using key, Add digital signature.

7. according to the method described in claim 2, it is characterized in that, being based on the identification information, the conjunction to the target data Method is verified, including：

Business verification is carried out to the target data；

In the case where the target data is verified by business, it is based on the identification information, to the legal of the target data Property is verified.

8. according to the method described in claim 2, it is characterized in that, in the case where the target data is verified by business, Based on the identification information, the legitimacy of the target data is verified, including：

In the case where the target data is verified by business, be based on the identification information, judge on target block chain whether There are the target datas；

In the case where the target data is not present on the target block chain, it is based on the identification information, to the target The legitimacy of data is verified.

9. according to the method described in claim 8, it is characterized in that, by corresponding in target data storage to block chain network On the block chain of node, including：

If the target data is documented on the target block chain, other nodes will be described in the block chain network Target data is synchronized on corresponding block chain；

If the target data is not documented on the target block chain, the node of the target block chain is by the mesh Mark other nodes in data broadcasting to the block chain network, wherein pass through the target data quilt of any one node verification It stores on corresponding block chain.

10. a kind of processing unit of the storage service data on block chain, which is characterized in that including：

Acquiring unit for obtaining business datum, and defines the type of transaction of the business datum；

Construction unit is built to be uploaded for being based on construction method corresponding with the type of transaction according to the business datum To the target data of block chain network；

Storage unit, for the target data to be stored to the block chain to corresponding node in block chain network.