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 "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.
The PDF of the study can be found here.
(Score: 0) by Anonymous Coward on Sunday November 08 2015, @08:54PM
Not trying to be pedantic here, I'm no GPG expert, so I may have misunderstood something, but isn't it that the message is encrypted using joe's public key and signed using your private key? i.e. your private key plays no role in the encryption part.