Identity management and encryption should strive to be associated with concepts of strength, integrity, legitimacy, trust, cleanliness and safety. There is nothing shady about it and we shouldn't need a guy in a trench coat to represent the idea that we should be able to confirm that our friends who are communicating with us are who they say they are and not imposters. Let's focus more on the trust part and less on the sleuthing in the dark part.
Sorry, just my $0.02... I only tell you because I want you to succeed.