[Cryptography] Explaining PK to grandma

[James A. Donald]

On 2013-11-27 09:44, Peter Gutmann wrote:
> +1 to all the above.  I've been a bit behind on email recently so you got
> there first with a good summary of the problem, but if your secure email
> scheme has a step 0 of "explain to granny how secure email works" then you may
> as well not bother going to step 1, whatever your step 1 is meant to be.
> Secure email has to work like Skype, you install it, you click on "Call
> <insert-name-of-grandchild>", and it works.

Skype, as originally designed, is a good starting point.  Of course the 
ease of use comes from a central certificate authority, but that problem 
can be, if not cured, substantially mitigated.