为在线匿名支付启用基于拍卖的跨区块链协议

Qian Zhang, Sheng Cao, Xiaosong Zhang
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引用次数: 3

摘要

如今,网上医疗服务得到了很大的发展。比特币、以太坊等加密货币因其良好的匿名性和金融支付属性,非常适合需要身份隐私保护的在线医疗电子支付场景。然而,加密货币差异很大,患者迫切需要使用不同的加密货币支付不同的医生和平台。通过集中式交易所交换加密货币存在费用高、操作繁琐等问题。去中心化交易所主要关注跨区块链连接,但忽略了连接器收取的高额中间费用。为了最大限度地减少交易费用,我们提出了一种利用反向Vickrey拍卖和Interledger的跨区块链连接器选择方案。我们的方案将连接器节点的选择抽象为一个服务提供商的竞标过程,通过这个过程我们可以找到出价最低的节点,即交易费用最少的节点,作为理想的跨区块链服务提供商。我们的方案方便、快速、廉价地实现了不同加密货币的跨区块链支付,可以为患者提供更好的个人隐私信息身份保护。安全性分析和性能评估表明,我们的方案可以有效地促进加密货币在医疗领域的应用。
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Enabling Auction-based Cross-Blockchain Protocol for Online Anonymous Payment
Nowadays, online medical services have been greatly developing. Cryptocurrencies like Bitcoin and Ethereum are very suitable for online medical electronic payment scenarios that require identity privacy protection because of their good anonymity and financial payment attributes. However, cryptocurrencies varies widely, the need of cryptocurrencies exchange is urgent for patients to pay different doctors and platforms with diverse cryptocurrencies. Exchanging cryptocurrencies through centralized exchanges has problems such as high fees and cumbersome operations. The decentralized exchanges mainly focus on cross-blockchain connectivity but high intermediate fees charged by connectors are ignored. In order to minimize the exchange fees, we propose a cross-blockchain connector selection scheme utilizing the reverse Vickrey auction along with Interledger. Our scheme abstracts the connector nodes selection into a service provider bidding process, throught which we can find the very node with the lowest bid, namely, the least exchange fees, as the ideal cross-blockchain service provider. Our scheme implements cross-blockchain payment of different cryptocurrencies conveniently, quickly and cheaply, which can provide patients with better identity protection of personal privacy information. Security analysis and performance evaluations show that our scheme can effectively promote the applications of cryptocurrencies in the field of medical care.
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