Tutorial 1 part 2 of 2: New identification key from a .PNG file
Open the image that was sent to you by your contact. If the image contains a new identification key, a message will appear asking
if you want to add it to your list.
After testing that you are the one to whom this key is addressed, it is added to your key list.
A message appears to confirm that the new ID key has been saved. Click «OK» to finish.