论文标题
肾脏交换问题的隐私协议
A Privacy-Preserving Protocol for the Kidney Exchange Problem
论文作者
论文摘要
来自活捐助者的肾脏捐赠是验证后捐款清单上长期等待时间的一种有吸引力的替代品。但是，即使找到了给定患者的活捐赠者，供体的肾脏也可能无法满足患者的医疗要求。如果几个患者处于这个位置，他们可能会以周期性的方式交换捐赠者。当前确定此类交换周期的算法方法忽略了捐助者和患者的隐私要求，因为他们要求其医疗数据进行集中收集和评估。在本文中，我们介绍了肾脏交换的第一个分布式保密协议，可确保对交换周期的正确计算，同时保护患者敏感医疗数据的隐私。我们证明了新协议的正确性和安全性，并评估其实际绩效。
Kidney donations from living donors form an attractive alternative to long waiting times on a list for a post-mortem donation. However, even if a living donor for a given patient is found, the donor's kidney might not meet the patient's medical requirements. If several patients are in this position, they may be able to exchange donors in a cyclic fashion. Current algorithmic approaches for determining such exchange cycles neglect the privacy requirements of donors and patients as they require their medical data to be centrally collected and evaluated. In this paper, we present the first distributed privacy-preserving protocol for kidney exchange that ensures the correct computing of the exchange cycles while at the same time protecting the privacy of the patients' sensitive medical data. We prove correctness and security of the new protocol and evaluate its practical performance.
