Portable file storage method and system based on blockchain and medium
A file storage and blockchain technology, applied in the file system, file access structure, file/folder operation, etc., can solve the problems of large resource consumption, hidden safety hazards of hash chaining, etc., and achieve the effect of reducing pressure
Pending Publication Date: 2022-01-07
微易签杭州科技有限公司
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Problems solved by technology
[0005] The embodiment of the present application provides a method, system and medium for portable file storage based on blockchain, so as to at least solve the problems of ordinary file storage in related technologies that consume a lot of resources and that there are potential security risks in hash chaining
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[0052] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0053] Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and those skilled in the art can also apply the present application to other similar scenarios. In addition, it can also be understood that although such development efforts may be complex and lengthy, for those of ...
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The invention relates to a blockchain-based portable file storage method and system and a medium, and the method comprises the steps: calling a smart contract deployed on a blockchain, and segmenting a target file according to a preset storage capacity to obtain a plurality of corresponding sub-files; calculating Hash values of the sub-files, and performing step-by-step calculation on the Hash values to obtain root Hash values; storing the sub-files in an account book of the blockchain in sequence; constructing a file asset object according to a preset data structure, and constructing event records according to a preset direction sequence. Through the application, the problems that common file storage in a blockchain needs to consume a large amount of resources and Hash chaining has potential safety hazards are solved, the pressure of blockchain storage is reduced, the file is directly stored in a blockchain account book after a blockchain intelligent contract finishes processing a service; therefore, risks caused by Hash chaining and the like of the traditional centralized storage file to the file are avoided.
Description
technical field [0001] This application relates to the field of data storage, in particular to a method, system and medium for portable file storage based on blockchain. Background technique [0002] Blockchain technology allows any number of nodes in the participating system to calculate and record all the information exchange data in the system for a period of time into a data block (Block) through cryptographic algorithms, and generate the fingerprint of the data block for use in Link (Chain) the next data block and verification, and all participating nodes in the system jointly determine whether the record is true. Its data is usually stored in KV key-value databases, relational databases, ordinary files, etc. Among them, the data structure and interface in KV key-value databases are relatively simple, with high read-write performance and good scalability, and can Support large-scale concurrent key-value pair data read and write requests; while ordinary files store the ...
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Login to View More IPC IPC(8): G06F16/172G06F16/13G06F16/16G06F21/60G06F21/62
CPCG06F16/172G06F16/137G06F16/16G06F21/602G06F21/6218G06F2221/2141
Inventor 青龙生龙玲刘明霞
Owner 微易签杭州科技有限公司