A Usability Study of Four Secure Email Tools Using Paired Participants
A Usability Study of Four Secure Email Tools Using Paired Participants
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DOI：
10.1145/3313761
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发表时间：
2019-04-01
影响因子：
2.3
通讯作者：
Seamons, Kent
中科院分区：
文献类型：
--
作者：
Ruoti, Scott;Andersen, Jeff;Seamons, Kent
安全电子邮件越来越多地被新手用户吹捧为可用的，基于最近对政府监视的担忧，推动了采用。为了确定安全电子邮件是否适合基层采用，我们采用了实验室用户研究，招募新手用户对安装和使用几个最新的系统来交换安全消息。我们提出了定量和定性的结果，从28对新手，因为他们使用私人WebMail（Pwm），Tutanota，和Virtru和10对新手，因为他们使用Mailmail。参与者报告说，他们对这种类型的研究更放心，而且能够更好地科普错误，因为两个参与者都是“在同一页上”。“我们发现，用户更喜欢集成解决方案，而不是基于仓库的解决方案，教程在帮助首次使用者方面很重要。最后，我们的研究结果表明，使用手动密钥管理的Pretty Good Privacy对于新手用户仍然无法使用，10个参与者中有9个未能完成研究。
Secure email is increasingly being touted as usable by novice users, with a push for adoption based on recent concerns about government surveillance. To determine whether secure email is ready for grassroots adoption, we employ a laboratory user study that recruits pairs of novice users to install and use several of the latest systems to exchange secure messages. We present both quantitative and qualitative results from 28 pairs of novices as they use Private WebMail (Pwm), Tutanota, and Virtru and 10 pairs of novices as they use Mailvelope. Participants report being more at ease with this type of study and better able to cope with mistakes since both participants are "on the same page." We find that users prefer integrated solutions over depot-based solutions and that tutorials are important in helping first-time users. Finally, our results demonstrate that Pretty Good Privacy using manual key management is still unusable for novice users, with 9 of 10 participant pairs failing to complete the study.