It would be nice if the space bar selected/de-selected the currently highlighted
key in the key selection dialog box (when encrypting a file). That would allow
for  faster key selection. The user could type the search criteria, the key
would come up, user presses tab and then space bar, and then tab again to get
back tothe search dialog box (to select another key). Otherwise, user has to go
back to the mouse to click on the key, and then back to the keyboard to type
another search parameter.