计算机科学
数字加密货币
数据库事务
计算机安全
付款
构造(python库)
块(置换群论)
吞吐量
货币
协议(科学)
计算机网络
操作系统
数据库
万维网
无线
货币经济学
病理
经济
替代医学
医学
数学
几何学
作者
Yonatan Sompolinsky,Aviv Zohar
标识
DOI:10.1007/978-3-662-47854-7_32
摘要
Bitcoin is a disruptive new crypto-currency based on a decentralized open-source protocol which has been gradually gaining momentum. Perhaps the most important question that will affect Bitcoin’s success, is whether or not it will be able to scale to support the high volume of transactions required from a global currency system. We investigate the implications of having a higher transaction throughput on Bitcoin’s security against double-spend attacks. We show that at high throughput, substantially weaker attackers are able to reverse payments they have made, even well after they were considered accepted by recipients. We address this security concern through the GHOST rule, a modification to the way Bitcoin nodes construct and re-organize the block chain, Bitcoin’s core distributed data-structure. GHOST has been adopted and a variant of it has been implemented as part of the Ethereum project, a second generation distributed applications platform.
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