AGChain: A Blockchain-based Gateway for Permanent, Distributed, and Secure App Delegation from Existing Mobile App Markets

01/16/2021 ∙ by Mengjie Chen, et al. ∙ 0

Mobile app markets are emerging with the popularity of smartphones. However, they fall short in several aspects, including no transparent app listing, no world-wide app access, and even insecure app downloading. To address these problems, we propose a novel blockchain-based gateway, AGChain, to bridge end users and app markets so that existing app markets could still provide services while users enjoy permanent, distributed, and secure app delegation from AGChain. To this end, we identify two previously under-estimated challenges and propose mechanisms to significantly reduce gas costs in our smart contract and make IPFS (Inter-planetary File System) based file storage really distributed. We also address three AGChain-specific system challenges to make it secure and sustainable. We have implemented an AGChain prototype (https://www.agchain.ltd/) on Ethereum. The evaluation shows that it achieves security and decentralization with minimal gas costs and reasonable performance.

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