比特币区块链扩容技术研究

发布时间：2018-06-26 21:08

本文选题：比特币 + 区块链　；参考：《计算机研究与发展》2017年10期

【摘要】：比特币是中本聪(Nakamoto)于2008年提出的数字货币,它具有去中心化、跨国界和发行总量固定等特性,现在已经成为使用最广泛的数字货币之一.然而,比特币设计初期的一些人为限制,导致现有网络处理交易的速率十分有限,最近交易处理能力已经接近上限,交易确认时间显著增加.这不仅严重影响比特币的使用体验,进而限制使用范围,而且对比特币的设计提出更高的要求.针对比特币所面临的交易处理性能挑战,以提升区块链容量为目标对比特币展开深入研究.首先,分析比特币当前网络状态,根据比特币交易数据,统计交易延迟情况;其次,针对链上扩容方案,分析可行性,研究扩容效果;再次,针对链下扩容方案,分析作用原理,研究扩容效果;最后,分析链上/链下扩容方案优缺点,提出适应社区的可行的比特币扩容路线方案.最新比特币扩容的进展进一步证明了我们结论的正确性.
[Abstract]:Bitcoin, a digital currency proposed by Nakamoto in 2008, has become one of the most widely used digital currencies, with the characteristics of decentralization, cross-border and fixed total issuance. However, some artificial restrictions in the early days of Bitcoin design have led to a very limited rate of processing transactions on existing networks. Recently, transaction processing capacity has approached the upper limit and transaction confirmation times have increased significantly. This not only seriously affects the use of Bitcoin experience, and then limits the scope of use, but also puts forward higher requirements for the design of Bitcoin. In view of the transaction processing performance challenges faced by bitcoin, the research on bitcoin is carried out with the aim of increasing block chain capacity. First, analyze the current network status of Bitcoin, according to the Bitcoin transaction data, statistics the transaction delay; second, for the chain expansion program, analyze the feasibility, study the effect of expansion; third, for the off-chain expansion scheme, Finally, the advantages and disadvantages of the up-chain / off-chain expansion schemes are analyzed, and a feasible bitcoin expansion route scheme adapted to the community is put forward. The latest expansion of Bitcoin further confirms the validity of our conclusions.
【作者单位】：北京航空航天大学电子信息工程学院;信息安全国家重点实验室(中国科学院信息工程研究所);
【基金】：中国科学院信息工程研究所信息安全国家重点实验室开放课题(2017-MS-02)~~
【分类号】：F821;TP311.13

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