[Freedombox-discuss] QR verification after Tap-to-share PGP key exchange

[Timur Mehrvarz]

On 01.10.2011 00:02, Timur Mehrvarz wrote:
> The complete 2-way process could be done with a total 
> number of four clicks per user.
> 
> 1. click on the received .asc file
> 2. click on "QR verification" in the "Apply action..." menu
> 3. click to snap / click to continue to switch around
> 4. click to continue to switch around / click to snap
> 

For a new "QR verification" activity to appear in the PGP-key's "Apply
action..." menu (based on mime type), the activity needs to be specified
like this in it's AndroidManifest.xml:

<activity android:name=".QrPgpKeyVerificationActivity"
          android:label="QR PGP key verification">
 <intent-filter>
  <action android:name="android.intent.action.VIEW" />
  <category android:name="android.intent.category.DEFAULT" />
  <category android:name="android.intent.category.BROWSABLE" />
  <data android:mimeType="application/pgp"/>
 </intent-filter>
</activity>

The activity can get access to the path of the selected (received) key
file like so:

  intent = getIntent()
  receivedKeyUri = intent.getData()
  receivedKeyPath = receivedKeyUri.getPath()

It can get the path of the users own public PGP key file (from the
current send folder) like so:

  bundle = intent.getExtras()
  sendKeyPath = bundle.getString("sendKeyFile")

(The Bluetooth nic info for both devices can be made available in
similar ways.)