CN109063138B - Method, apparatus, and storage medium for searching data in a blockchain as a service platform - Google Patents
Method, apparatus, and storage medium for searching data in a blockchain as a service platform Download PDFInfo
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- CN109063138B CN109063138B CN201810879095.7A CN201810879095A CN109063138B CN 109063138 B CN109063138 B CN 109063138B CN 201810879095 A CN201810879095 A CN 201810879095A CN 109063138 B CN109063138 B CN 109063138B
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Abstract
The present disclosure discloses a method for searching data on a blockchain as a service platform, the method comprising: A. receiving a search request via a hypertext transfer protocol interface; B. searching an index matched with the search request in a database which is in communication connection with the blockchain service platform, wherein the index stored in the database comprises an index created according to blockchain data; C. generating a search result webpage based on the uniform resource location address in the searched index; D. and returning a search result webpage associated with the search request. The method of the invention can meet the requirement that the block chain organizer shares effective value information with other users, and can also meet the requirement that the user effectively searches the data in the block chain.
Description
Technical Field
The present disclosure relates to a method for searching data on a blockchain service platform, an apparatus for searching data on a blockchain service platform, and a corresponding computer-readable storage medium.
Background
Blockchains (Blockchain) are intelligent peer-to-peer networks that use distributed databases to identify, disseminate, and document information, also known as value internet. The block chain has the technical advantages of decentralization, tamper resistance, data consistency storage, transparent and traceable process and the like, and is considered to have wide application prospects in numerous fields of finance, credit investigation, internet of things, economic trade settlement, asset management and the like. The blockchain is commonly maintained by all the participating nodes, and each node participating in maintenance can acquire a complete copy of blockchain data and independently verify the complete copy. Blockchains employ cryptographic techniques to ensure that blockchains can only add new data and cannot tamper with already existing data.
In the existing blockchain technology, information exchange among different blockchains (especially different federation chains and private chains) is realized by offline exchange and the like. However, as the technology of blockchain continues to develop, more and more blockchains are managed and each blockchain has a great deal of valuable information, so that the requirement for searching the blockchain running on the blockchain serving platform by users increases, and the organizer of each blockchain also wants the valuable information of the blockchain to be searched in order to find more qualified blockchain participants or business partners; a need has arisen to adapt the blockchain, i.e., service platform, to enable valuable information of the different blockchains with which it communicates to be searched.
Disclosure of Invention
Embodiments of the present invention provide a method, an apparatus, and a computer-readable storage medium for searching data on a Blockchain as a Service platform, so that the Blockchain as a Service platform can obtain Blockchain data on one or more blockchains communicatively connected thereto, thereby implementing a Blockchain as a Service platform (BaaS) to search for the Blockchain data on the one or more blockchains communicatively connected thereto.
To this end, a first aspect of the present disclosure proposes a method for searching data on a blockchain as a service platform, the method comprising:
A. receiving a search request via a hypertext transfer protocol interface;
B. searching an index matched with the search request in a database which is in communication connection with the blockchain service platform, wherein the index stored in the database comprises an index created according to blockchain data;
C. generating a search result webpage based on the uniform resource location address in the searched index; and
D. and returning a search result webpage associated with the search request.
A second aspect of the present disclosure proposes an apparatus for searching data on a blockchain as a service platform, the apparatus comprising:
a processor; and
a memory for storing instructions that, when executed, cause the processor to:
A. receiving a search request via a hypertext transfer protocol interface;
B. searching an index matched with the search request in a database which is in communication connection with the blockchain service platform, wherein the index stored in the database comprises an index created according to blockchain data;
C. generating a search result webpage based on the uniform resource location address in the searched index; and
D. and returning a search result webpage associated with the search request.
A third aspect of the present disclosure proposes a computer-readable storage medium comprising computer-executable instructions that, when run in a device, cause the device to perform a method for searching data on a blockchain as a service platform according to the first aspect of the present disclosure.
The method, the device and the corresponding computer readable storage medium for searching data on the blockchain service platform according to the present disclosure enable the blockchain service platform to acquire blockchain data on one or more blockchains in communication connection therewith, then create an index for the acquired blockchain data, store the created index in a database in communication with the blockchain service platform, and implement the search of the blockchain service platform for the blockchain data on the one or more blockchains in communication connection therewith through the search of the index in the database. Other advantages of the present invention will be further described below.
Drawings
The features, advantages and other aspects of various embodiments of the present invention will become more apparent by referring to the following detailed description in conjunction with the accompanying drawings, in which several embodiments of the invention are shown by way of illustration and not limitation, wherein:
FIG. 1 shows a schematic architecture diagram of a blockchain as a service platform system for implementing a method for searching data on a blockchain as a service platform according to the present disclosure;
FIG. 2 shows a flow diagram of a first embodiment of a method for searching data on a blockchain as a service platform in accordance with the present disclosure;
FIG. 3 shows a flow diagram of a second embodiment of a method for searching data on a blockchain as a service platform in accordance with the present disclosure;
FIG. 4 illustrates a flow chart of a method for searching data on a blockchain as a service platform in accordance with the present disclosure;
FIG. 5 shows a schematic diagram of a first embodiment of an apparatus for searching data on a blockchain as a service platform according to the present disclosure; and
fig. 6 is a diagram of a second embodiment of an apparatus for searching data on a blockchain as a service platform according to another exemplary embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings. The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of methods and systems according to various embodiments of the present invention. It should be noted that each block in the flowchart or block diagrams may represent a module, a segment, or a portion of code, which may comprise one or more executable instructions for implementing the logical function specified in the respective embodiment. It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
As used herein, the terms "include," "include," and similar terms are open-ended terms, i.e., "including/including but not limited to," meaning that additional content may also be included. The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment," and the like.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. For the connection between the units in the drawings, for convenience of description only, it means that at least the units at both ends of the connection are in communication with each other, and is not intended to limit the inability of communication between the units that are not connected.
For convenience of description, some terms appearing in the summary of the invention will be described below, and it should be understood that the terms used in the present application should be interpreted as having a meaning that is consistent with their meaning in the context of the present specification and the relevant art.
The term "type of blockchain" in the context of the present invention refers to different types of dividing a blockchain according to the architecture of the blockchain.
The term "Uniform Resource Locator address" in the present disclosure refers to an address of a standard Resource on the internet, which is also called a Uniform Resource Locator (URL) or a web page address.
The term "client certificate" in the context of the present invention refers to a read-only certificate of a blockchain that is capable of allowing a blockchain, i.e. a service platform, to retrieve blockchain data in the corresponding blockchain.
The term "public data" in the context of the present invention refers to data that is accessible without authentication, whereas "private data" refers to data that is accessible without authentication.
The present invention has appeared in the context of the present invention the terms "retrieve" and "search", where the term "retrieve" refers to the process of crawling, processing, indexing and traversing blockchain data by a search engine through a web crawler, and the term "search" refers to the search engine receiving a search of previously indexed web content after a user has entered keywords on a search engine page.
The terms "first" and "second" in this summary are used merely to describe a reference, an object, or something specific, and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.
The term "plurality" in the context of the present invention means two or more.
The term "word segmentation processing" in the context of the present invention refers to a processing manner in which blockchain data written in chinese or languages in which no delimiter exists is segmented into individual words or words.
The term "first attribute" in this summary is used to mark blockchain data as private or public.
The term "belonging blockchain information" in the context of the present invention refers to information indicating from which blockchain the blockchain data actually came.
In the description of the present disclosure, the term "authentication credential" refers to the verification information required by a blockchain user to access the corresponding blockchain.
In the present disclosure, the term "public area" refers to a storage area of an index corresponding to public data in a blockchain in a database, and the term "private area" refers to a storage area of an index corresponding to private data in a blockchain in the database.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. For the connection between the units in the drawings, for convenience of description only, it means that at least the units at both ends of the connection are in communication with each other, and is not intended to limit the inability of communication between the units that are not connected.
Fig. 1 shows a schematic architecture diagram of a blockchain as a service platform system 100 of the present invention. In fig. 1, a blockchain as a service platform system 100 is erected based on a cloud 110, which includes a blockchain as a service platform 120, a plurality of blockchains 130, 140, 150, and a schematically illustrated storage device 170 and a search engine 180. The blockchain as a service platform system 100 can provide a federation chain or private chain service for a user and also serves as a facing portal. In addition, the blockchain as a service platform 120 can provide a variety of functions such as data management, data analysis, searching data, etc., to meet user-specific roles and industry needs. The storage device 170 is capable of storing an index created from the blockchain data and an index created from the blockchain, i.e., platform information on the service platform 120.
In the blockchain-as-a-service platform system 100, since different types of blockchains have different communication protocols, for example, the fabric type blockchain employs the gRPC protocol, the cordia type blockchain employs the custom RPC protocol, and so on, the existing search engine can only establish communication with one type of blockchain at a time to retrieve data in the blockchain.
In order to effectively solve the above problems, the present disclosure provides a method, an apparatus, and a corresponding computer-readable storage medium for searching data on a blockchain as a service platform. The method for searching data on a blockchain service platform disclosed in the present disclosure is first described below with reference to fig. 2 to 4; the disclosed blockchain service platform is communicatively coupled to at least two blockchains, and the at least two blockchains may belong to different types of blockchains (e.g., where at least one blockchain belongs to a fabric type blockchain, another blockchain belongs to a cordia type blockchain, etc.). The specific implementation of the disclosed method for searching data on a blockchain i.e. service platform is shown in fig. 4:
before implementing the exemplary method shown in fig. 4, the present disclosure first obtains and processes blockchain information in a blockchain communicatively connected to a blockchain, i.e., a service platform, using the first and second embodiments shown in fig. 2 and 3. The first embodiment shown in fig. 2 is used to obtain the blockchain information in the blockchain communicatively connected to the blockchain, i.e., the service platform, as follows:
in step 210, the type of blockchain that is communicatively connected to the blockchain, i.e., service platform, is identified.
Typically, the blockchains communicatively coupled to the blockchain, i.e., the service platform, may have different blockchain types, e.g., fabric, cordia, etc.
In step 220, a communication protocol associated with the blockchain is determined based on the type of blockchain. For example, at least the gRPC information transfer protocol may be adapted for fabric type blockchains, the custom RPC protocol may be adapted for corda type blockchains, and so on.
In step 230, in a case that the blockchain is a service platform having a client certificate associated with the blockchain stored thereon, acquiring blockchain data in the corresponding blockchain through the communication protocol, which specifically includes:
when an organizer of any blockchain (e.g., without limitation, blockchain 130) in blockchain as shown in figure 1, i.e., service platform system 100, wishes to have user access to the blockchain data thereon, the blockchain sends its own client certificate to blockchain as service platform 120. When the organizer of any blockchain (e.g., without limitation, blockchain 140) in blockchain as shown in figure 1 as service platform system 100 does not want the user to have access to the blockchain data thereon, the blockchain does not send its own client certificate to blockchain as service platform 120.
When blockchain i.e. service platform 120 accesses blockchain 130 using the communication protocol associated with blockchain 130, blockchain i.e. service platform 120 can obtain blockchain information from blockchain 130 because the client certificate of blockchain 130 is stored on blockchain i.e. service platform 120. The blockchain data on the blockchain 130 includes both private data and public data.
In the same way, when the blockchain service platform 120 accesses the blockchain 140 using the communication protocol associated with the blockchain 140, the blockchain service platform 120 cannot obtain the blockchain information from the blockchain 140 because the blockchain service platform 120 does not have the client certificate of the blockchain 140.
The second embodiment shown in fig. 3 is used to create an index for blockchain data in a blockchain communicatively connected to a blockchain service platform as follows:
step 310: and converting the block chain data into a webpage.
Specifically, the blockchain data acquired using the embodiment shown in fig. 2 is converted into a web page.
Step 320: and acquiring one or more keywords by performing word segmentation processing on the webpage.
As an example, the blockchain data may be stored in, but not limited to, a key/value (key/value) format, and the keyword generated by performing the word segmentation process on the blockchain data is also data in the key value format. Thus, for different types of data in a blockchain of a federation chain type, the blockchain data further includes a first attribute as defined above, such that the belonging blockchain information in each index associated with the blockchain data indicates the blockchain to which the blockchain data belongs when the first attribute of the blockchain data indicates that the blockchain data is private data, to indicate that the index can only be searched by users having authentication credentials; when the first attribute of the blockchain data indicates that the blockchain data is public data, the belonging blockchain information in each index associated with the blockchain data is set to a default value to indicate that the index can be searched by any user.
Step 330: and generating a corresponding index for each keyword in the one or more keywords, the content abstract of the blockchain data, the uniform resource location address corresponding to the blockchain data and the blockchain information to which the blockchain data belongs.
Next, the generated index is stored in a database. Wherein, the database is connected with the block chain, namely the service platform in a communication way.
Thus, when the keyword is data having a key-value format, specific examples of the format of each index received by the database are shown in the following table:
| keyword | Content summarization | Corresponding uniform resource locator address | Affiliated blockchain information | |
| KW1 | content_URL1 | | Block chain | 130 |
Watch 1
Table one shows an exemplary index generated after any private data on the blockchain 130 is participled, wherein a key in the index is KW1, an actual storage address of the blockchain data is URL1, the belonging blockchain information indicates that the blockchain data comes from the blockchain 130 as shown in fig. 1, and a content summary of the blockchain data is content _ URL 1. The above-mentioned index formats are merely exemplary and not restrictive, and other index formats may be used in a practical application scenario to meet the requirements of the present invention.
In a specific implementation, since any blockchain data may be participled to generate one or more keywords, each blockchain data may correspond to one or more indexes having the same URL, and different blockchain data may be participled to generate a plurality of indexes having the same keyword, it can be known that the database for storing indexes may store a plurality of indexes having the same keyword and different URLs and a plurality of indexes having the same URL and different keywords.
In the current mainstream blockchain platform, alliance chains such as Fabric, Corda and the like perform access right control on all data in all blockchain data. In general, enterprise-level blockchains generally use a federation chain platform, and access is granted to all data. For example, an insurance sales system implemented using blockchains, where insurance price, terms, etc. information are desired to be able to retrieve queries without authorization; but other information, such as user information, transaction information, claims records, etc., is required to be access-controlled, which is not beneficial to protecting the privacy of the client and the trade secrets of the insurance company.
Thus, for different types of data in a blockchain of a federation chain type, the storing of the index specifically includes:
as shown in the disclosed embodiment, where the blockchain data is stored in a key-value format, the blockchain data also includes a first attribute as defined above.
For example, any blockchain data can include a first attribute that distinguishes public data from private data, e.g., the first attribute is 0 indicating that the blockchain data is public data, and the first attribute is 1 indicating that the blockchain data is private data. Therefore, the method allows an administrator to dynamically adjust in real time during the operation of the block chain, thereby improving the dynamic maintenance of the data.
In the event that the first attribute of the blockchain data indicates that the blockchain data is public data, an index associated with the blockchain data is stored in a public area in the database.
In the event that the first attribute of the blockchain data indicates that the blockchain data is private data, an index associated with the blockchain data is stored in a private area in the database.
In the present embodiment, when the first attribute of the blockchain data is 0, all indexes associated with the blockchain data are stored in a public area of the database. When the first attribute of the blockchain data is 1, all indexes associated with the blockchain data are stored in a privacy area of the database.
Therefore, the index is distinguished and stored, access control on the block chain data is further realized, and meanwhile, the block chain user can search the private data in the block chain to which the block chain user belongs conveniently. In addition, the organizer of the blockchain may also authorize some potential users to perform a search for private data in the blockchain.
In addition, in the content of the present invention, an index created according to the platform information on the blockchain, i.e. the service platform, is also stored in the database; the specific implementation mode is as follows:
firstly, converting the platform information into a webpage; secondly, performing word segmentation processing on the webpage to obtain one or more keywords; third, each of the one or more keywords, the content summary of the platform information, and a uniform resource locator address corresponding to the platform information are included in a respective index. Wherein the format of the index associated with the platform information is similar to the format of the index of the private data of the blockchain 130 shown in table one, wherein the belonging blockchain information in the index associated with the platform information is a default value set to indicate that the index can be searched by any user.
Wherein the platform information is one or more of: the use information of the block chain which is in communication connection with the block chain, namely the service platform, the participant information of the block chain and the advertisement information. In addition, the index created according to the platform information on the blockchain, i.e., service platform, in the present disclosure is stored in the open area of the database.
As shown in fig. 4, the specific implementation steps of the method for searching data on a blockchain, i.e. a service platform, include:
step 410: a search request is received via a hypertext transfer protocol interface.
Specifically, a user directly initiates a search request for blockchain data on a blockchain, i.e., service platform.
Step 420: and searching a database which is in communication connection with the blockchain service platform for an index matched with the search request. Step 420 further includes:
firstly, searching the index matched with the search request in the public area based on the matching relation between the key words in the index and the search request.
Secondly, searching the index matched with the search request in the privacy zone based on the matching relation between the key words in the index and the search request, and specifically comprising the following steps:
first, it is determined whether authentication credentials of a user that initiated the search request are included in the search request. In this embodiment, the authentication credentials of the user may include, but are not limited to, a client certificate or a user name and password of the user. Additionally, the organizer of the blockchain may also provide authentication credentials to some potential users (i.e., users other than the blockchain) so that such users can search for private data on the blockchain.
Second, in an instance in which it is determined that the authentication credentials of the user are included in the search request, searching the privacy zone for one or more indices that match the authentication credentials of the user. Specifically, first, the authentication credential of the user is matched with the blockchain information belonging to each index in the privacy area; secondly, in the case that the authentication credential of the user is matched with the affiliated blockchain information of the key words in the index or indexes, searching the index or indexes matched with the authentication credential of the user.
In the above step, in a case where it is determined that the search request does not include the authentication credentials of the user, or that one or more indexes associated with the authentication credentials of the user do not exist although the authentication credentials of the user are included in the search request, or that an index matching the search request does not exist among the one or more indexes associated with the authentication credentials of the user, it is indicated that an index matching the search request cannot be found in the privacy area of the database.
And finally, searching the index matched with the search request in one or more indexes matched with the authentication certificate of the user based on the matching relation between the key words in the index and the search request.
In addition, as shown in fig. 4, the method disclosed in the present disclosure further includes step 430: and generating a search result webpage based on the uniform resource location address in the searched index. An example specific implementation of step 430 is as follows:
firstly, the uniform resource location address and the corresponding content abstract in each searched index are used for generating a corresponding search result.
Second, all search results associated with the search request are generated as the search result web page.
Next, as shown in fig. 4, the method disclosed in the present disclosure further includes step 440: and returning a search result webpage associated with the search request.
For example, the keyword "cloud computing" may be obtained in a separate word segmentation process for a large amount of blockchain data existing in different blockchains, but different URLs are included in different indexes on "cloud computing" for different blockchain data. When a user initiates a search request on the blockchain service platform for "cloud computing" to match the "cloud computing" index in the database, the blockchain service platform may obtain different blockchain data and platform information by using different URLs corresponding to the "cloud computing" in the database. A search result web page having one or more "cloud computing" keywords is returned to the user.
Finally, the user can select one or more search results which are considered to be in accordance with the conditions from the presented search result webpage, and when the user clicks the URL corresponding to the search result, the blockchain data at the URL can be analyzed according to the data format name of the data analysis method which represents the blockchain data in the blockchain data corresponding to the URL; alternatively, the blockchain data at the URL may be resolved according to a data format resolution function name, a data format resolution service address, or a data format resolution smart contract address representing a data resolution method of the blockchain data in the blockchain data to which the URL corresponds.
In the present disclosure, the search engine 180 in the blockchain as a service platform 120 shown in fig. 1 can utilize the storage device 170 (i.e., the storage device 170 can store the above-mentioned index) to implement the method for searching data on the blockchain as a service platform disclosed in fig. 2-4.
The method for searching data on the block chain, namely the service platform, can realize the retrieval of the block chain data allowed to be obtained in the block chain, namely the service platform system and establish a corresponding index, so that a user accessing the block chain, namely the service platform system can directly search any block chain data allowed to be accessed in the block chain, namely the service platform system, and meanwhile, an organizer of the block chain can share the data on the block chain, thereby meeting the data sharing requirements of the organizer of the block chain and the user of the block chain, namely the service platform system, and further providing more opportunities for the organizer of the block chain and the user of the block chain, namely the service platform system to find business partners and business opportunities.
In addition, the present disclosure can also implement authority control on the user, so that the user with authority and the user authorized by the blockchain organizer (i.e., the user with authentication credentials) can search the private data in the blockchain to which the user belongs, the public data and the platform information on one or more blockchains in communication with the blockchain, i.e., the service platform, while other users without authority (i.e., the users without authentication credentials) can only search the platform information on the blockchain, i.e., the service platform system, and the public data on one or more blockchains in communication with the blockchain, i.e., the service platform, thereby expanding the search range and improving the effectiveness of the search for the user with authority, and improving protection on the blockchain data to prevent the user without authority from obtaining the private data on the blockchain.
In addition, due to the characteristics of high transparency of the blockchain and data tamper resistance, compared with the data searched by the prior search technology, the searched data is more reliable, accurate and effective.
Additionally or alternatively, the above-described method can be implemented by a computer program product, i.e., a computer-readable storage medium. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for carrying out various aspects of the present disclosure. The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.
Fig. 5 shows a schematic diagram of an apparatus 500 for searching data on a blockchain as a service platform. It should be understood that the device 500 may implement the functionality of the method for searching data on a blockchain, i.e., service platform, in fig. 2-4. As can be seen in fig. 5, an apparatus 500 for searching data on a blockchain as a service platform comprises a processor 501, a memory 502, the instructions stored in the memory 502 when executed causing the processor 501 to:
A. receiving a search request via a hypertext transfer protocol interface;
B. searching an index matched with the search request in a database which is in communication connection with the blockchain service platform, wherein the index stored in the database comprises an index created according to blockchain data;
C. generating a search result webpage based on the uniform resource location address in the searched index; and
D. and returning a search result webpage associated with the search request.
In one embodiment according to the present disclosure, the index stored in the database further includes an index created according to platform information on the blockchain as a service platform.
In an embodiment according to the present disclosure, creating an index according to platform information on the blockchain as a service platform further includes:
converting the platform information into a webpage;
obtaining one or more keywords by performing word segmentation processing on the webpage; and
including each of the one or more keywords, the content summary of the platform information, and a uniform resource locator address corresponding to the platform information in a respective index.
In one embodiment consistent with the present disclosure, an index associated with the platform information is stored in a public area of the database.
In one embodiment consistent with the present disclosure, the platform information is one or more of:
usage information of a blockchain communicatively connected to the blockchain, i.e., a service platform;
participant information for blockchains;
and (4) advertising information.
In one embodiment consistent with the present disclosure, the instructions stored in the memory 502 when executed further cause the processor 501 to further perform the following operations before performing the step a:
x1. identifying a type of blockchain to which the blockchain is communicatively connected;
x2. determining a communication protocol associated with the blockchain based on the type of blockchain; and
x3. obtaining, via the communication protocol, blockchain data in the blockchain in which the client certificate associated with the blockchain is stored on the blockchain as a service platform.
In one embodiment consistent with the present disclosure, the instructions stored in the memory 502 when executed further cause the processor 501 to further perform the following between performing the step X and the step a:
y1. converting the blockchain data into a web page;
y2. obtaining one or more keywords by performing a word segmentation process on the web page; and
y3. generates corresponding index for each of the one or more keywords, the content summary of the blockchain data, the uniform resource locator address corresponding to the blockchain data, and the blockchain information to which the blockchain data belongs.
In an embodiment according to the present disclosure, the generating a search result webpage based on the uniform resource locator address in the searched index in step C further includes:
generating corresponding search results by the uniform resource positioning address and the corresponding content abstract in each searched index; and
generating all search results associated with the search request as the search result web page.
In one embodiment according to the present disclosure, the blockchain data includes a first attribute for distinguishing public data from private data, and the belonging blockchain information is set based on the first attribute.
In an embodiment consistent with the present disclosure, the database is further configured to:
in the event that the first attribute of the blockchain data indicates that the blockchain data is public data, storing an index associated with the blockchain data in a public area in the database;
in an instance in which the first attribute of the blockchain data indicates that the blockchain data is private data, storing an index associated with the blockchain data in a privacy area in the database.
In an embodiment according to the present disclosure, the searching the database for the index matching the search request in step B further includes:
B1. searching indexes matched with the search request in the public area based on the matching relation between the keywords in the indexes and the search request; and
B2. and searching the index matched with the search request in the privacy zone based on the matching relation between the key words in the index and the search request.
In an embodiment according to the present disclosure, the step B2 of searching the index matching the search request in the privacy zone based on the matching relationship between the keywords in the index and the search request further includes:
B21. determining whether authentication credentials of a user initiating the search request are included in the search request;
B22. searching the privacy zone for one or more indexes that match the user's authentication credentials if it is determined that the search request includes the user's authentication credentials; and
B23. searching the index matched with the search request in one or more indexes matched with the authentication certificate of the user based on the matching relation between the key words in the index and the search request.
In an embodiment consistent with the present disclosure, in the case that it is determined that the search request includes the authentication credentials of the user, the step B22 of searching for one or more indexes in the privacy zone that match the authentication credentials of the user further includes:
matching the authentication credentials of the user with the blockchain information belonging to each index in the privacy area; and
and searching one or more indexes matched with the authentication credentials of the user under the condition that the authentication credentials of the user are matched with the blockchain information to which the key words in the one or more indexes belong.
On one hand, the embodiment disclosed above can realize that the blockchain service platform acquires blockchain data in different blockchains, retrieves the acquired blockchain data to generate an index, retrieves platform information of the blockchain service platform to generate an index, stores the generated index in the database, and further can realize search of the blockchain data by using the index in the database; on the other hand, the authority of the user initiating the search request can be controlled, so that the user with the authentication certificate can search not only public data and platform information in one or more block chains in communication connection with the block chain, namely the service platform, but also private data in the block chain to which the user belongs, and on the contrary, the user without the authentication certificate can only search the public data and the platform information in one or more block chains in communication connection with the block chain, namely the service platform, so that the precise control of the search block chain data is realized.
Computer-readable program instructions or computer program products for performing aspects of the present disclosure may also be stored in the cloud, and when a call is needed, a user may access the computer-readable program instructions stored in the cloud for performing aspects of the present disclosure through a mobile internet, a fixed network, or other networks, so as to implement the technical solutions disclosed in the aspects of the present disclosure.
Fig. 6 shows a schematic diagram of an apparatus 600 for searching data on a blockchain as a service platform. It should be understood that the device 600 may implement the functions of the methods for searching data on a blockchain, i.e., service platform in fig. 2-4. As can be seen in fig. 6, an apparatus 600 for searching for data on a blockchain as a service platform includes a Central Processing Unit (CPU)601 (e.g., a processor) that can perform various appropriate actions and processes in accordance with computer program instructions stored in a Read Only Memory (ROM)602 or loaded from a storage unit 608 into a Random Access Memory (RAM) 603. In the RAM 603, various programs and data necessary for the operation of the apparatus 600 can also be stored. The CPU 601, ROM 602, and RAM 603 are connected to each other via a bus 604. An input/output (I/O) interface 605 is also connected to bus 604.
A number of components in the device 600 are connected to the I/O interface 605, including: an input unit 606 such as a keyboard, a mouse, or the like; an output unit 607 such as various types of displays, speakers, and the like; a storage unit 608, such as a magnetic disk, optical disk, or the like; and a communication unit 609 such as a network card, modem, wireless communication transceiver, etc. The communication unit 609 allows the device 600 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
Various methods described above, such as a method for searching data on a blockchain as a service platform, can be performed by the CPU 601. For example, in some embodiments, the method for searching data on a blockchain as a service platform may be implemented as a computer software program tangibly embodied in a machine-readable medium, such as storage unit 608. In some embodiments, part or all of the computer program may be loaded and/or installed onto the device 600 via the ROM 602 and/or the communication unit 609. When the computer program is loaded into RAM 603 and executed by CPU 601, one or more acts or steps of the methods described above may be performed.
In general, the various exemplary embodiments of this invention may be implemented in hardware or special purpose circuits, software, firmware, logic or any combination thereof. Certain aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of the embodiments of the invention may be illustrated or described as block diagrams, flow charts, or using some other pictorial representation, it is well understood that the blocks, apparatus, systems, techniques or methods described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
In summary, the method for searching data on a blockchain, i.e. a service platform, provided by the present disclosure firstly implements searching for data in one or more blockchains in communication with the blockchain, i.e. the service platform, and in view of the characteristics of high transparency and data tamper resistance of the blockchains, the searched data or information has the advantages of high reliability and high accuracy compared with the search result of the existing search technology; secondly, the authority of the user can be controlled, so that the user with the authority can search the private data of the block chain to which the user belongs and can search the public data and platform information in one or more block chains communicated with the block chain, namely a service platform, the search range is expanded for the user with the authority and the search effectiveness is improved, and meanwhile, the user without the authority is prevented from obtaining the private data which does not belong to the block chain, and the safety of searching the block chain data is improved; finally, the content of the invention can help users and organizers of each block chain to share data, thereby eliminating message barriers and better cooperating and communicating, and finally creating more commercial value.
It should be noted that although several modules or units of the device are mentioned in the above detailed description, such division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more of the modules described above may be embodied in one module according to embodiments of the invention. Conversely, the features and functions of one module described above may be further divided into embodiments by a plurality of modules.
The above description is only an alternative embodiment of the present invention, and is not intended to limit the embodiment of the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.
While embodiments of the invention have been described with reference to several particular embodiments, it is to be understood that embodiments of the invention are not limited to the specific embodiments disclosed. The embodiments of the invention are intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.
Claims (27)
1. A method for searching data on a blockchain as a service platform, the method comprising:
y, obtaining each keyword of the block chain data obtained by the block chain serving platform, and generating a corresponding index from each keyword, a content abstract of the block chain data, a uniform resource positioning address corresponding to the block chain data and the block chain information to which the block chain data belongs;
A. receiving a search request via a hypertext transfer protocol interface;
B. searching an index matched with the search request in a database which is in communication connection with the blockchain service platform, wherein the blockchain service platform is in communication connection with at least two blockchains and acquires blockchain data in the at least two blockchains, the at least two blockchains belong to different types of blockchains, and the index stored in the database comprises an index created according to the blockchain data;
C. generating a search result webpage based on a uniform resource location address in the searched index, wherein the search result webpage is generated by all search results associated with the search request; and
D. and returning a search result webpage associated with the search request.
2. The method of claim 1, wherein the index stored in the database further comprises an index created from platform information on the blockchain as a service platform.
3. The method of claim 2, wherein creating an index from platform information on the blockchain as a service platform further comprises:
converting the platform information into a webpage;
obtaining one or more keywords by performing word segmentation processing on the webpage; and
including each of the one or more keywords, the content summary of the platform information, and a uniform resource locator address corresponding to the platform information in a respective index.
4. The method of claim 3, wherein the index associated with the platform information is stored in a public area of the database.
5. The method of claim 2, wherein the platform information is one or more of:
usage information of a blockchain communicatively connected to the blockchain, i.e., a service platform;
participant information for blockchains;
and (4) advertising information.
6. The method according to claim 1, wherein, prior to step Y, the method further comprises step X, in particular as follows:
x1. identifying a type of blockchain to which the blockchain is communicatively connected;
x2. determining a communication protocol associated with the blockchain based on the type of blockchain; and
x3. obtaining, via the communication protocol, blockchain data in the blockchain in which the client certificate associated with the blockchain is stored on the blockchain as a service platform.
7. The method according to claim 6, wherein step Y is as follows:
y1. converting the blockchain data into a web page;
y2. obtaining one or more keywords by performing a word segmentation process on the web page; and
y3. generates corresponding index for each of the one or more keywords, the content summary of the blockchain data, the uniform resource locator address corresponding to the blockchain data, and the blockchain information to which the blockchain data belongs.
8. The method of claim 3 or 7, wherein the step C of generating a search result webpage based on the uniform resource locator address in the searched index further comprises:
generating corresponding search results by the uniform resource positioning address and the corresponding content abstract in each searched index; and
generating all search results associated with the search request as the search result web page.
9. The method of claim 7, wherein the blockchain data includes a first attribute for distinguishing public data from private data, the belonging blockchain information being set based on the first attribute.
10. The method of claim 4 or 9, wherein the database is further configured to:
in the event that the first attribute of the blockchain data indicates that the blockchain data is public data, storing an index associated with the blockchain data in a public area in the database;
in an instance in which the first attribute of the blockchain data indicates that the blockchain data is private data, storing an index associated with the blockchain data in a privacy area in the database.
11. The method of claim 10, wherein the step B of searching the database for an index matching the search request further comprises:
B1. searching indexes matched with the search request in the public area based on the matching relation between the keywords in the indexes and the search request; and
B2. and searching the index matched with the search request in the privacy zone based on the matching relation between the key words in the index and the search request.
12. The method of claim 11, wherein the step B2 of searching the index matching the search request in the privacy zone based on the matching relationship between the keywords in the index and the search request further comprises:
B21. determining whether authentication credentials of a user initiating the search request are included in the search request;
B22. searching the privacy zone for one or more indexes that match the user's authentication credentials if it is determined that the search request includes the user's authentication credentials; and
B23. searching the index matched with the search request in one or more indexes matched with the authentication certificate of the user based on the matching relation between the key words in the index and the search request.
13. The method of claim 12, wherein searching the privacy zone for one or more indices that match the user's authentication credentials in the case that it is determined that the search request includes the user's authentication credentials in step B22 further comprises:
matching the authentication credentials of the user with the blockchain information belonging to each index in the privacy area; and
and searching one or more indexes matched with the authentication credentials of the user under the condition that the authentication credentials of the user are matched with the blockchain information to which the key words in the one or more indexes belong.
14. An apparatus for searching data on a blockchain as a service platform, the apparatus comprising:
a processor; and
a memory for storing instructions that, when executed, cause the processor to:
y, obtaining each keyword of the block chain data obtained by the block chain serving platform, and generating a corresponding index from each keyword, a content abstract of the block chain data, a uniform resource positioning address corresponding to the block chain data and the block chain information to which the block chain data belongs;
A. receiving a search request via a hypertext transfer protocol interface;
B. searching an index matched with the search request in a database which is in communication connection with the blockchain service platform, wherein the blockchain service platform is in communication connection with at least two blockchains and acquires blockchain data in the at least two blockchains, the at least two blockchains belong to different types of blockchains, and the index stored in the database comprises an index created according to the blockchain data;
C. generating a search result webpage based on a uniform resource location address in the searched index, wherein the search result webpage is generated by all search results associated with the search request; and
D. and returning a search result webpage associated with the search request.
15. The apparatus of claim 14, wherein the index stored in the database further comprises an index created from platform information on the blockchain as a service platform.
16. The apparatus of claim 15, wherein creating an index from platform information on the blockchain as a service platform further comprises:
converting the platform information into a webpage;
obtaining one or more keywords by performing word segmentation processing on the webpage; and
including each of the one or more keywords, the content summary of the platform information, and a uniform resource locator address corresponding to the platform information in a respective index.
17. The device of claim 16, wherein an index associated with the platform information is stored in a public area of the database.
18. The device of claim 15, wherein the platform information is one or more of:
usage information of a blockchain communicatively connected to the blockchain, i.e., a service platform;
participant information for blockchains;
and (4) advertising information.
19. The device of claim 14, wherein the instructions, when executed, further cause the processor to, prior to performing step Y:
x1. identifying a type of blockchain to which the blockchain is communicatively connected;
x2. determining a communication protocol associated with the blockchain based on the type of blockchain; and
x3. obtaining, via the communication protocol, blockchain data in the blockchain in which the client certificate associated with the blockchain is stored on the blockchain as a service platform.
20. The device of claim 19, wherein the instructions, when executed, further cause the processor, in performing step Y, to specifically comprise:
y1. converting the blockchain data into a web page;
y2. obtaining one or more keywords by performing a word segmentation process on the web page; and
y3. generates corresponding index for each of the one or more keywords, the content summary of the blockchain data, the uniform resource locator address corresponding to the blockchain data, and the blockchain information to which the blockchain data belongs.
21. The apparatus of claim 16 or 20, wherein the generating of the search result webpage based on the uniform resource locator address in the searched index in the step C further comprises:
generating corresponding search results by the uniform resource positioning address and the corresponding content abstract in each searched index; and
generating all search results associated with the search request as the search result web page.
22. The apparatus of claim 20, wherein the blockchain data includes a first attribute for distinguishing public data from private data, the belonging blockchain information being set based on the first attribute.
23. The apparatus of claim 17 or 22, wherein the database is further configured to:
in the event that the first attribute of the blockchain data indicates that the blockchain data is public data, storing an index associated with the blockchain data in a public area in the database;
in an instance in which the first attribute of the blockchain data indicates that the blockchain data is private data, storing an index associated with the blockchain data in a privacy area in the database.
24. The apparatus of claim 23, wherein the step B of searching the database for an index matching the search request further comprises:
B1. searching indexes matched with the search request in the public area based on the matching relation between the keywords in the indexes and the search request; and
B2. and searching the index matched with the search request in the privacy zone based on the matching relation between the key words in the index and the search request.
25. The apparatus of claim 24, wherein the searching for the index matching the search request in the privacy zone based on the matching relationship between the keywords in the index and the search request in step B2 further comprises:
B21. determining whether authentication credentials of a user initiating the search request are included in the search request;
B22. searching the privacy zone for one or more indexes that match the user's authentication credentials if it is determined that the search request includes the user's authentication credentials; and
B23. searching the index matched with the search request in one or more indexes matched with the authentication certificate of the user based on the matching relation between the key words in the index and the search request.
26. The apparatus of claim 25, wherein the step B22, in the event that the search request is determined to include authentication credentials of the user, searching the privacy zone for one or more indices that match the authentication credentials of the user further comprises:
matching the authentication credentials of the user with the blockchain information belonging to each index in the privacy area; and
and searching one or more indexes matched with the authentication credentials of the user under the condition that the authentication credentials of the user are matched with the blockchain information to which the key words in the one or more indexes belong.
27. A computer-readable storage medium comprising computer-executable instructions that, when run in a device, cause the device to perform the method for searching data on a blockchain as-a-service platform according to any one of claims 1 to 13.
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| PCT/CN2019/098194 WO2020024908A1 (en) | 2018-08-03 | 2019-07-29 | Method and device for data searching on blockchain-as-a-service platform, and storage medium |
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