GPG on Android

john doe johndoe65534 at
Sun Nov 11 08:23:11 CET 2018

On 11/9/2018 6:58 AM, Arthur Ulfeldt wrote:
> for years I've been using openkeychain and keeping a signing and encryption
> subkey on an nfc yubikey.  when I went to use encrypted email on the phone
> (which is basically only from Facebook) I tap the key to the back of the
> phone. if I want to read the same email on my laptop I plug out in there.
> it's been smooth and solid for years.
> recently I got a yubikey 4 which i plug into the USB port on the phone. it
> works just as well. I slightly preferred the NFC version.
> On Thu, Nov 8, 2018, 7:40 AM amuza <amuza at wrote:
>> john doe:
>>> On 11/4/2018 10:55 PM, Roland wrote:
>>>> Hello list,
>>>> I share the wish for encrypted email on Android, but I am afraid of
>> storing a secret key on my android phone. (theft, hacking, loss, etc)
>>> In case of theft/lost using subkey is somewhat easier because you can
>>> revoke that subkey only.
>> An encrypted Replicant phone [0] + K-9 Mail + Openkeychain using subkeys
>> [0]

When I said above that subkey is easier to manage I was talking only
about signing subkey, that is, one signing subkey per device.
That is based on the assumption that you can have only one encryption
subkey and multiple signing subkeys.

John Doe

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