A Decentralized Secure Mailbox System based on Blockchain

机译：基于区块链的去中心化安全邮箱系统

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Nowadays, the communication services provided by the e-mail system are used all over the world for formal communication and business negotiation. The traditional e-mail systems provide services based on their centralized servers. If the centralized servers are attacked, the confidential message and the private information will be leaked to the attacker. To this end, this paper uses blockchain technology to build a decentralized e-mail system with trust and accountability. To improve the PBFT algorithm which is widely-used for blockchain consensus and reduce the bad influence brought by the abnormal blockchain nodes, this work proposes a node quality control strategy for blockchain consensus nodes. Moreover, this paper designs the blockchain-based evidence storage module and dispute resolution module to serve our mailbox users. The experiment results show that the blockchain-based e-mail system proposed in this paper can achieve a high-quality consensus mechanism with the node quality control strategy and reduce the transaction delay time.

机译：如今，电子邮件系统提供的通信服务已在全球范围内用于正式通信和业务谈判。传统的电子邮件系统基于其集中式服务器提供服务。如果集中式服务器受到攻击，则机密消息和私人信息将泄露给攻击者。为此，本文使用区块链技术构建具有信任和责任感的去中心化电子邮件系统。为了改进广泛用于区块链共识的PBFT算法并减少异常区块链节点带来的不良影响，本文提出了一种针对区块链共识节点的节点质量控制策略。此外，本文设计了基于区块链的证据存储模块和争议解决模块来为我们的邮箱用户提供服务。实验结果表明，本文提出的基于区块链的电子邮件系统可以通过节点质量控制策略实现高质量的共识机制，并减少交易延迟时间。

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《International Conference on Computer Communication and Network Security》|2020年|136-141|共6页
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Xianglong Bao;
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blockchain; e-mail system; practical Byzantine fault tolerance; dispute resolution;

机译：区块链;电子邮件系统;实用拜占庭容错;纠纷解决;

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A Decentralized Secure Mailbox System based on Blockchain

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