In this study, we overview the problems associated with the usability of cryptocurrency wallets, such as those used by ZCash, for end-users. The concept of "holistic privacy," where information leaks in one part of a system can violate the privacy expectations of different parts of the system, is introduced as a requirement. To test this requirement with real-world software, we did a 60 person task-based evaluation of the usability of a ZCash cryptocurrency wallet by having users install and try to both send and receive anonymized ZCash transactions, as well as install a VPN and Tor. While the initial wallet installation was difficult, we found even a larger amount of difficulty integrating the ZCash wallet into network-level protection like VPNs or Tor, so only a quarter of users could complete a real-world purchase using the wallet.

中文翻译：

---

加密货币钱包的整体隐私和可用性

在这项研究中，我们概述了与加密货币钱包（例如ZCash使用的那些钱包）的最终用户的可用性相关的问题。作为一种要求，引入了“整体隐私”的概念，在该概念中，系统某一部分中的信息泄漏会违反系统不同部分的隐私期望。为了使用实际软件测试此要求，我们通过让用户安装并尝试发送和接收匿名ZCash交易，以及安装VPN和Tor，对ZCash加密货币钱包的可用性进行了基于任务的60人评估。 。虽然最初的钱包安装很困难，但我们发现将ZCash钱包集成到VPN或Tor之类的网络级保护中遇到的困难更大，因此只有四分之一的用户可以使用该钱包完成实际购买。