On Sep 9, 2013, at 4:11 PM, Dan York <dan-ietf@xxxxxxxxxxx> wrote: > Even in the groups where PGP was (and is) being used, usage is inconsistent in part because people are now accessing their email using different devices and not all of them have easy access to PGP/GPG. If you receive an encrypted message... but can only read it on your laptop/desktop and not your mobile device, and you are not near your laptop/desktop, how useful is the encryption if you need to read the message? You have to either wait to get back to your system or ask the person to re-send unencrypted. It might be worth thinking about why ssh and ssl work so well, and PGP/GPG don't. On Sep 9, 2013, at 4:09 PM, Brian E Carpenter <brian.e.carpenter@xxxxxxxxx> wrote: > True story: Last Saturday evening I was sitting waiting for a piano > recital to start, when I overheard the person sitting behind me (who > I happen to know is a retired chemistry professor) say to his > companion "Email is funny, you know - I've just discovered that when > you forward or reply to a message, you can just change the other > person's text by typing over it! You'd have thought they would > make that impossible." > > Yes, they should have made that impossible. Oh my, I _love_ this! This is actually the first non-covert use case I've heard described, although I'm not convinced that PGP could actually do this without message format tweaks.