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Decentralized Blockchain-Based Android App Store with P2P File System

机译：基于区块的基于区块链条的Android应用商店与P2P文件系统

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In the Android app store, developers must provide a fee of at least 15% of revenue, and there is no reliable evaluation system for apps, so it can lead to occur the damage with installation of malicious file. Blockchain technology which supports decentralized infrastructure can support transactions between developers and buyers without a central organization. Through the Blockchain technology, the fee-free app trading environment can be created. Ethereum's smart contract provides permissions through token issuance and can manages the buyers. Therefore, we implement DAS (Decentralized Android app Store) which provides app trading environment without decentralized organization using smart contract. In addition, IPFS is used for APK file sharing to reduce the amount of gas consumed according to the data size. Since only the hash value of the file is registered, not the whole data of the file, it is possible to consume a little constant average gas costs in the process of file registering and purchasing. We implemented as DApp in Ethereum platform. After purchasing the app, it is possible to induce the appraisal of the app reliability through the evaluation permission assigned to the purchaser, and measuring reliability through the purchase rate and the appraisal rate.
机译：在Android App Store中，开发人员必须提供至少15％的收入的费用，并没有为应用程序进行可靠的评估系统，因此它可能导致安装恶意文件的损坏。支持分散式基础设施的区块链技术可以支持开发人员和买家之间的交易，没有中央组织。通过BloctChain技术，可以创建免费的应用程序交易环境。 Ethereum的智能合同通过令牌发行提供权限，可以管理买家。因此，我们实施DAS（分散的Android App Store），它提供了使用智能合同的无分散组织的应用交易环境。此外，IPFS用于APK文件共享以减少根据数据大小消耗的气体量。由于仅注册文件的哈希值，而不是文件的整个数据，因此可以在文件登记和购买过程中消耗一点恒定的平均气体成本。我们在以Ethereum平台实现了DAPP。购买应用程序后，可以通过分配给购买者的评估许可以及通过购买率和评估率来衡量可靠性的应用程序可靠性评估。

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