Encrypt file with keystore's secret key entry

Workflow

	
	Fill in all required fields
	  ==> enable action button located at bottom of active window
	
	Click action button
	  ==> new window shows up:
	    Window displays contents of selected keytore
	    An additional column (first one, on the left) displays valid entries.
	
	Click on valid row
	  ==> respective alias is displayed at bottom
	  
	Right below, enter respective alias's password, then click OK button
	
	
	

Limitations

	  Keystore types:
	  . JCEKS
	  . BKS
	  . UBER
	  
	  Key algorithms:
	  . AES
	  . Blowfish
	  . DES
	  . DESede
	  . Arcfour
	  
	  (known problems with hmac[md5-sha1-sha256])