====== Set your default GnuPG key pair on OS X 10.9 ======
Let's say that you created more then one key pair. From now on, you would like to use the key with the id 10X01Y07 as your new default or primary key.
  - Open up Terminal (Application>>Utilities>>Terminal)
  - TextEdit comes preinstalled on your machine and offeres you a gui but feel free to open following document with a different text editor <code>open -a TextEdit ~/.gnupg/gpg.conf</code>
  - Search for the text snippet "default-key". 
  - Remove the comments character (#) if needed. Now add your key id. e.g. "default-key 10X01Y07" after default-key
  - Save and close the file
  - Come back to the Terminal and test your new default key e.g. <code>gpg --clearsign  /Users/fiona/Documents/helloworld.txt</code>
  - The following output should confirm your new settings.

Find out more:
[[http://www.gnupg.org/gph/en/manual.html | GnuPG manual]] 

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