CN113839984A - Event audio and video trusted storage and sharing method and system based on block chain - Google Patents
Event audio and video trusted storage and sharing method and system based on block chain Download PDFInfo
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- H—ELECTRICITY
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
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Abstract
The invention belongs to the technical field of block chains, and particularly relates to an event audio and video trusted storage and sharing system and method based on a block chain, wherein the system comprises a hardware layer and a software layer, and the hardware layer is a block chain soft-hard all-in-one machine with a block chain safety chip inside; the software layer comprises a block chain network, a trusted object storage service and an audio and video trusted sharing network. The trusted object storage service is used for protecting the safe and high-availability storage of the original file of the event audio and video, the node service network based on the block chain is used for protecting the Hash of the file of the event audio and video from being tampered, the non-tampering characteristic of the block chain is utilized for protecting the safety and reliability of the event audio and video shared among multiple departments and multiple levels, the cooperation efficiency is enhanced, and the public transparency and traceability characteristic of the block chain is utilized for enhancing the public credibility of the audio and video data.
Description
Technical Field
The invention belongs to the technical field of block chains, and particularly relates to an event audio and video trusted storage and sharing method and system based on a block chain.
Background
A large amount of audio and video data can be generated in the event processing process, wherein the audio and video data comprises audio and video data collected by each department worker in the event processing process and audio and video data provided by event parties as evidences. The event audio and video data is used as important auxiliary materials of the event file and has irreplaceable effect on event processing. And event audio and video sharing is a process that all departments record and archive the whole process of processing work through a recording and video recording device in the process of processing events, and transfer and share the generated event audio and video data among other departments. In the aspect of event audio and video storage, the conventional NAS storage is adopted for storing event audio and video data at present; in the aspect of event audio and video sharing, the traditional off-line mode of optical disk recording and transferring is adopted.
And the event audio and video data has strong specialization and high storage safety requirement. Meanwhile, according to the related regulation requirements such as the storage period of the archives in China, the data needs to support storage for decades or even permanently. Meanwhile, the guarantee of data privacy and security also needs to be enhanced.
The existing event audio and video storage mode lacks sufficient technical guarantee in the aspects of reliability, safety, tamper resistance and the like; in the aspect of sharing, the existing mode cannot establish an event audio and video sharing normalization mechanism among multiple departments, the sharing efficiency is low, the information is asymmetric, the service is opaque, the real-time verification is difficult, repeated confirmation and back-and-forth communication of the service are needed among the multiple departments, and the cooperation is difficult. The inventor of the present application finds, through actual research, that the following problems still exist in the event audio and video storage and sharing process in the prior art: the problem that the event audio and video is damaged and tampered due to malicious attack or malicious operation of internal personnel in the event audio and video storage process; the problem of inconvenience and quickness in physical medium transfer in the event audio and video sharing process; the problems of information asymmetry and service opacity caused by system isolation in the event audio and video sharing process are solved; and the event audio and video is damaged and tampered due to malicious attack or malicious operation of internal personnel in the event audio and video sharing process.
The blockchain is a decentralized electronic accounting technology, can safely store transaction or other data, and information cannot be forged or falsified. The transaction may be digital currency such as bitcoin, digital assets such as a debt, a stock right, a copyright, and the like, and may be any digital information in a broad sense. Its presence greatly reduces the cost of trust and accounting for real economies. By means of the block chain structure and the timestamp technology, information on the chain is only allowed to be newly added and cannot be modified or replaced, the data on the chain cannot be tampered in content and time, and the evidence storage record can be permanently traced and audited.
The block chain technology has the advantages that the information cannot be tampered, the information on the chain is only allowed to be newly added and cannot be modified and replaced by relying on the block chain structure and the timestamp technology, the data on the chain cannot be tampered in content and time, and the evidence storage record is permanently traceable and auditable. The block chain technology has distributed management, data accounts on the block chain are stored in a distributed mode through all the participating nodes, all the block chain nodes store the full data on the chain through a preset consensus algorithm, and the data on the chain are maintained together. The block chain technology has a consensus mechanism and a data review mechanism with the public transparency and through multi-party agreement, the data processing flow on the chain is opened and audited for the participating nodes, and all users can inquire the evidence storage data through a block chain browser. The block chain technology is also autonomous, multiple parties on the chain can agree on the operation rules and evidence storage rules applied on the chain, the subsequent chain application can strictly operate according to the agreement, and any third party cannot privately tamper with the operation rules, so that the safe operation of the chain application is guaranteed.
The above advantages of the block chain technology provide a new idea for solving the problems of safety and convenience of event audios and videos in the storage and sharing processes, and the inventor provides the technical scheme of the invention.
Disclosure of Invention
In order to solve the technical problems, the invention provides a trusted event audio and video storage and sharing method and system based on a block chain.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an event audio and video trusted storage and sharing system based on a block chain comprises a hardware layer and a software layer, wherein the hardware layer is a block chain soft and hard all-in-one machine with a block chain security chip inside; the software layer comprises a block chain network, a trusted object storage service and an audio and video trusted sharing network.
Furthermore, the block chain network consists of block chain link points, and the block chain network jointly runs block chain node service software to provide uplink evidence storage service for event audio and video fingerprint data; the trusted object storage service slices the event audio and video original file and provides distributed partial redundant storage service; the audio and video credible sharing software carries out operation, management and verification of audio and video sharing.
The invention also provides an event audio and video credible storage and sharing method based on the block chain, which is implemented by the event audio and video credible storage and sharing system based on the block chain, and comprises the following steps:
step 1), a user acquires and uploads event audio and video data;
step 2), the system calls a certificate storage service to store event audio and video metadata and stores the event audio and video metadata into a database;
step 3), the system calls a certificate storage service to store the event audio and video original file, calls a trusted object storage service to fragment the original file data, and stores the original file data in a distributed redundant manner into a database of the trusted object storage service;
step 4), the system calls a certificate storage service to store the event audio and video characteristic fingerprint data, and stores the audio and video hash data into a block link point network;
step 5), the system generates a block chain certificate of authenticity and returns the block chain certificate of authenticity to a client of the system;
step 6), the user of the demand party submits an event audio and video data application through a system sharing service;
step 7), the trusted object storage service combines the audio and video original file fragments to form a complete file;
step 8), returning the event audio and video subjected to integrity and safety verification to the user of the demand party;
and 9) the user of the demand party checks the event audio and video data.
Further, the database in the step 2) is a relational database.
Further, the event audio/video characteristic fingerprint in the step 4) is a file hash of the event audio/video data.
Further, the step 6) further includes that the provider user approves the event audio and video data application through the system sharing service, and after the approval is passed, the demander user retrieves the event audio and video original file data from the trusted object storage service through the audio and video trusted sharing system.
Further, the step 7) further comprises calculating file hash and comparing the file hash with the chain certificate-storing hash to ensure that the original event audio/video file data is not tampered.
Further, the step 3) of invoking the trusted object storage service to fragment the original file data and store the fragmented original file data in the database of the trusted object storage service in a distributed and redundant manner specifically includes: the event audio and video original file stores data into a distributed storage node network, the event audio and video original file is divided into a plurality of file segments in the distributed storage node network, and the plurality of file segments are stored in corresponding nodes.
Further, the storing the audio/video hash data in the step 4) to the block link point network specifically includes: and uploading the audio and video data to a plurality of blockchain nodes by the blockchain soft and hard all-in-one machine in a mode of uplink control and data encryption and decryption by means of a security contract, an authorization and encryption and decryption layer.
Furthermore, the plurality of block chain link points comprise a first department block chain node, a second department block chain node, a third department block chain node and a fourth department block chain node; and the first department block chain node, the second department block chain node, the third department block chain node and the fourth department block chain node have data cooperation with each other.
Compared with the prior art, the invention has the following beneficial effects:
the method uses a trusted object storage service to protect the safe and high-availability storage of the original file of the event audio and video, uses a node service network based on a block chain to protect the Hash of the file of the event audio and video from being tampered, uses the non-tampering characteristic of the block chain to protect the safety and reliability of the event audio and video shared among multiple departments and multiple levels, enhances the cooperation efficiency, uses the open transparency and traceability characteristic of the block chain to protect the transparent traceability of the whole process of the event audio and video in the processes of storage, application, approval and calling, and enhances the credibility of the audio and video data.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall working process of the system of the present invention;
FIG. 2 is a schematic flow chart illustrating the process of fragmenting and redundantly storing original file data in a trusted object storage database in a distributed manner according to the present invention;
fig. 3 is a schematic flow chart illustrating the process of storing the audio/video hash data in the block link point network according to the present invention.
Detailed Description
For further understanding of the present invention, embodiments of the present invention will be described in further detail below with reference to examples and comparative examples, but embodiments of the present invention are not limited thereto.
In order to make the purpose and technical solution of the present invention more apparent, the present invention is further described in detail with reference to the following examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The following describes the application of the present invention in detail.
An event audio and video trusted storage and sharing system based on a block chain comprises a hardware layer and a software layer, wherein the hardware layer is a block chain soft and hard all-in-one machine with a block chain security chip inside; the software layer comprises a block chain network, a trusted object storage service and an audio and video trusted sharing network. The block chain network consists of block chain link points, and the block chain network jointly runs block chain node service software to provide chain evidence storage service for event audio and video fingerprint data; the trusted object storage service slices the case audio and video original file and provides distributed partial redundant storage service; the audio and video credible sharing software carries out operation, management and verification of audio and video sharing.
The hardware layer in the system is a block chain soft and hard all-in-one machine with a built-in block chain security chip, and can be used as a storage medium of event audio and video data. The software layer in the system comprises a block chain network consisting of block chain link points, and block chain node service software is operated together to provide uplink chain credit service for event audio and video fingerprint data; the trusted object storage service can slice the event audio and video original file and provide distributed partial redundant storage service; and the audio and video credible sharing software is used for carrying out operation, management and verification of audio and video sharing.
The invention adopts a trusted object storage service, namely TOSS, which is a block chain-combined cryptographically verifiable multi-history version object storage service, is suitable for trusted storage of data, and has block chain level security, compliance, history version retention and auditability non-tamper-proof property.
The invention also provides an event audio and video trusted storage and sharing method based on the block chain, which is implemented by the event audio and video trusted storage and sharing system based on the block chain, as shown in fig. 1, and comprises the following steps:
step 1), a user acquires and uploads event audio and video data from an upstream service system;
step 2), the system calls a certificate storage service to store event audio and video metadata and stores the event audio and video metadata into a relational database;
step 3), the system calls a certificate storage service to store the event audio and video original file, calls a trusted object storage service to fragment the original file data, and stores the original file data in a trusted object storage database in a distributed redundant manner;
step 4), the system calls a certificate storage service to store event audio and video characteristic fingerprint (namely file hash of an audio and video file) data, and stores the audio and video hash data into a block link point network; the storage mode is shown in FIG. 3
Step 5), the system generates a block chain certificate of authenticity and returns the block chain certificate of authenticity to the client;
step 6), the user of the demand party submits an event audio and video data application through a system sharing service;
step 7), the provider user applies for approval on the event audio/video data through the system sharing service;
step 8), after the approval is passed, the user of the demand party calls case audio and video original file data from the trusted object storage service through the audio and video trusted sharing system;
step 9), the trusted object storage service combines the audio and video original file fragments to form a complete file, calculates the file hash and compares the file hash with the chain verification hash to ensure that the event audio and video original file data is not tampered
Step 10), returning the event audio and video subjected to integrity and safety verification to the user;
step 11), the user views the event audio and video data through a system client or a browser or other suitable modes.
As shown in fig. 2, the process of calling the trusted object storage service in step 3) to fragment and distribute the original file data to the trusted object storage database in a redundant manner specifically includes the following operations: the event audio and video original file stores data into a distributed storage node network, the event audio and video original file is divided into a plurality of file segments in the distributed storage node network, and the plurality of file segments are stored in corresponding nodes. As shown in fig. 2, event audio and video original file data is stored in a distributed storage node network, first, the event audio and video data file is divided into a plurality of file segments by a node a, the plurality of file segments are respectively stored in a node B, a node C, a node D, and a node E, and the node a, the node B, the node C, the node D, and the node E are connected with each other through a broadcast message and/or a P2P message.
As shown in fig. 3, the process of storing the hash data of the audio and video in the step 4) to the network of the block nodes specifically includes the following operations: and performing chain linking control and data encryption and decryption on the event audio and video data by a block chain software and hardware integrated machine by means of a safe river source and an authorization and encryption and decryption layer, and uploading the event audio and video data to a plurality of block chain nodes, wherein the block chain nodes comprise a first department block chain node, a second department block chain node, a third department block chain node and a fourth department block chain node. For any one of the block chain nodes, the event data is uploaded separately and respectively, and meanwhile, the first department block chain node, the second department block chain node, the third department block chain node and the fourth department block chain node have data cooperation with each other.
The invention provides a trusted storage and sharing method and a trusted storage and sharing system for an event audio and video by combining software and hardware, which solve the problems that the event audio and video is damaged and tampered due to malicious attack or malicious operation of internal personnel in the process of storing the event audio and video; the problem of inconvenience and quickness in physical medium transfer in the event audio and video sharing process is solved; the problems of information asymmetry and service opaqueness caused by system isolation in the event audio and video sharing process are solved; the problems that the event audio and video is damaged and tampered due to malicious attack or malicious operation of internal personnel in the event audio and video sharing process are solved.
The method uses a trusted object storage service to protect the safe and high-availability storage of the original file of the event audio and video, uses a node service network based on a block chain to protect the Hash of the file of the event audio and video from being tampered, uses the non-tampering characteristic of the block chain to protect the safety and reliability of the event audio and video shared among multiple departments and multiple levels, enhances the cooperation efficiency, uses the open transparency and traceability characteristic of the block chain to protect the transparent traceability of the whole process of the event audio and video in the processes of storage, application, approval and calling, and enhances the credibility of the audio and video data.
In addition, it should be noted that the specific examples described in the present specification may differ in terms of formulation, process name, and the like. All equivalent or simple changes of the structure, the characteristics and the principle of the invention which are described in the patent conception of the invention are included in the protection scope of the patent of the invention. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Although the present invention has been described with reference to the above embodiments, it should be understood that the scope of the present invention is not limited thereto, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention.
Claims (10)
1. An event audio and video trusted storage and sharing system based on a block chain comprises a hardware layer and a software layer, and is characterized in that the hardware layer is a block chain soft-hard all-in-one machine with a block chain security chip inside; the software layer comprises a block chain network, a trusted object storage service and an audio and video trusted sharing network.
2. The trusted event audio/video storage and sharing system based on blockchains according to claim 1, wherein the blockchain network is composed of blockchain link points, and the blockchain networks jointly run blockchain node service software to provide uplink chain evidence storage service for event audio/video fingerprint data; the trusted object storage service slices the event audio and video original file and provides distributed partial redundant storage service; the audio and video credible sharing software carries out operation, management and verification of audio and video sharing.
3. A trusted storage and sharing method of event audios and videos based on blockchains, said method being implemented by the trusted storage and sharing system of event audios and videos based on blockchains according to claim 1 or 2, characterized in that said method comprises the following steps:
step 1), a user acquires and uploads event audio and video data;
step 2), the system calls a certificate storage service to store event audio and video metadata and stores the event audio and video metadata into a database;
step 3), the system calls a certificate storage service to store the event audio and video original file, calls a trusted object storage service to fragment the original file data, and stores the original file data in a distributed redundant manner into a database of the trusted object storage service;
step 4), the system calls a certificate storage service to store the event audio and video characteristic fingerprint data, and stores the audio and video hash data into a block link point network;
step 5), the system generates a block chain certificate of authenticity and returns the block chain certificate of authenticity to a client of the system;
step 6), the user of the demand party submits an event audio and video data application through a system sharing service;
step 7), the trusted object storage service combines the audio and video original file fragments to form a complete file;
step 8), returning the event audio and video subjected to integrity and safety verification to the user of the demand party;
and 9) the user of the demand party checks the event audio and video data.
4. The method for trusted storing and sharing of event audios and videos based on block chains according to claim 3, wherein the database in the step 2) is a relational database.
5. The method for trusted storage and sharing of event audio and video based on blockchains according to claim 3, wherein the event audio and video characteristic fingerprint in the step 4) is a file hash of the event audio and video data.
6. The trusted event audio/video storage and sharing method based on the blockchain according to claim 3, wherein the step 6) further comprises that a provider user approves an event audio/video data application through a system sharing service, and after approval is passed, a demander user retrieves original file data of the event audio/video from a trusted object storage service through an audio/video trusted sharing system.
7. The trusted event audio/video storage and sharing method based on the blockchain according to claim 5, wherein the step 7) further comprises calculating a file hash and comparing the file hash with a chain storage certificate hash to ensure that original file data of the event audio/video is not tampered.
8. The method for trusted storing and sharing of event audio and video based on blockchains according to claim 1, wherein the step 3) of invoking the trusted object storage service to segment and distribute and redundantly store the original file data into a database of the trusted object storage service specifically comprises: the event audio and video original file stores data into a distributed storage node network, the event audio and video original file is divided into a plurality of file segments in the distributed storage node network, and the plurality of file segments are stored in corresponding nodes.
9. The method for trusted storage and sharing of event audios and videos based on blockchains according to claim 1, wherein the step 4) of storing the audio and video hash data into the blockchain link point network specifically includes: and uploading the audio and video data to a plurality of blockchain nodes by the blockchain soft and hard all-in-one machine in a mode of uplink control and data encryption and decryption by means of a security contract, an authorization and encryption and decryption layer.
10. The blockchain-based event audio and video trusted storage and sharing method according to claim 9, wherein the plurality of blockchain link points include a first department blockchain node, a second department blockchain node, a third department blockchain node, and a fourth department blockchain node; and the first department block chain node, the second department block chain node, the third department block chain node and the fourth department block chain node have data cooperation with each other.
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