Why Johnny Still, Still Can't Encrypt: Evaluating the Usability of a Modern PGP Client
arXiv:1510.08555
Abstract
This paper presents the results of a laboratory study involving Mailvelope, a modern PGP client that integrates tightly with existing webmail providers. In our study, we brought in pairs of participants and had them attempt to use Mailvelope to communicate with each other. Our results shown that more than a decade and a half after \textit{Why Johnny Can't Encrypt}, modern PGP tools are still unusable for the masses. We finish with a discussion of pain points encountered using Mailvelope, and discuss what might be done to address them in future PGP systems.
This is the Mailvelope study discussed in the CHI 2016 paper arXiv:1510.08554 "We're on the Same Page": A Usability Study of Secure Email Using Pairs of Novice Users"