I did quite a bit of work on a PGP app last summer, OpenKeychain, which
leverages the Android “sharing” system very effectively to produce a pretty
nice UX for encryption/signing/key-discovery/decryption/verification. See
https://play.google.com/store/apps/details?id=org.sufficientlysecure.keychain&hl=en
There’s one missing piece, the equivalent of HTTP Content-type. You can
easily encrypt anything - a message, a picture, a video - and send it off
to anyone, and have them decrypt it straightforwardly with no user-visible
crypto incantations. But then how does the receiver process it
automatically unless it knows the payload data format?
I’m aware that S/MIME does this, but that was not terribly relevant in the
Android-app context.
I’m aware there have been proposals for a new packet type for this purpose
but I don't want to presuppose any conclusions; just noting that I've
encountered a real actual need here in real actual software. I’d be able
to invest some cycles on this if there’s interest among others.
--
- Tim Bray (If you’d like to send me a private message, see
https://keybase.io/timbray)
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