You can use the following public encryption for sending private messages to Ralf Vogelgesang:

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.2.4 (MingW32)
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=92HQ
-----END PGP PUBLIC KEY BLOCK-----

For more information: see also http://www.gnupg.org/