一种基于区块链的数字资源共享存储方案

A blockchain-based digital resource sharing and storage scheme

摘要

数字化时代下,数字资源共享需求日益增长。然而,区块链存储效率有限且集中式云存储存在隐患。为此,本文结合网络中大量可利用的闲置用户存储资源,提出一种“元数据+分布式云存储”改进方案。该方案以多链协同架构为基础,通过分布式密钥生成中心并结合可信执行环境实现用户身份认证,同时引入质押代币机制保障存储资源可信任性;借鉴Steemit激励模式构建分层激励机制,激发用户提供闲置资源的积极性;基于贡献值和信誉值的积分模型,实现存储资源的高效分配,以及参考相关标准,设计适合数字资源共享场景的元数据体系。实验验证表明,该方案在50、200 MB规格文件场景下吞吐量较集中式存储分别提升35.4%和68.4%,在200 MB文件场景下CPU与内存占用率分别降低44.1%、29.2%,且身份认证成功率、数据完整性校验通过率均达100%。该方案契合区块链去中心化理念,可有效提升数字资源共享的效率、安全性与扩展性,为数字资源规模化共享提供可行支撑。

Abstract

In the digital age,the demand for digital resource sharing is growing increasingly.However,blockchain has limited storage efficiency,and centralized cloud storage harbors potential risks.To address these issues,this paper proposes an improved "metadata+distributed cloud storage" scheme by leveraging the abundant idle user storage resources available in networks.Based on a multi-chain collaborative architecture,the scheme implements user identity authentication through a distributed key generation center combined with a trusted execution environment (TEE),while introducing a token staking mechanism to ensure the trustworthiness of storage resources.It draws on the Steemit incentive model to construct a hierarchical incentive mechanism,thereby stimulating users' enthusiasm to provide idle resources.A points model based on contribution value and reputation value is adopted to achieve efficient allocation of storage resources.In addition,with reference to relevant standards,a metadata system suitable for digital resource sharing scenarios is designed.Experimental verification shows that,in scenarios involving files of 50 MB and 200 MB,the throughput of the proposed scheme is increased by 35.4% and 68.4% respectively compared with centralized storage.In the 200 MB file scenario,the CPU and memory utilization rates are reduced by 44.1% and 29.2% respectively.Furthermore,the success rate of identity authentication and the pass rate of data integrity verification both reach 100%.This scheme is in line with the decentralized concept of blockchain,which can effectively improve the efficiency,security,and scalability of digital resource sharing,and provide feasible support for large-scale digital resource sharing.

关键词

区块链 / 数字资源共享 / 分布式云存储 / 闲置资源 / 元数据

Key words

blockchain / digital resource sharing / distributed cloud storage / idle resources / metadata

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基金资助

福建省社科基金重点项目(FJ2025MGCA033);福建省自然科学基金面上项目(2023J011139);莆田学院引进人才科研启动项目(2025027)