Comment 8 for bug 393645

@Kurt von Finck:
You are right, that would be a correct method to implement this.

But, I'm not able to find the options to Encrypt/Sign *anywhere* in Karmic,even after adding pgp keys
I'm beginning to believe that this is more of a bug, where those 2 context menu items are not displayed at all.
Or could someone enlighten me, as to where is should look for these options in Karmic?