This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify debian-6-turnkey-processmaker_12.1-1_i386.tar.gz.sig gpg: Signature made Tue Jun 4 23:26:25 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 664d8955c833a50a94ac82d4423aac5ed3185ed7 * md5sum 02014832674cfc6317cb06b71a8cb489 You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrneWAAoJEIXCXpWhbrlNH0AH+QEC1csTs4vWHimFjx+ulDvi 3lo+PhxJWXQcEgszjJedmbXaz+eXaKVn+CTQFCj3yhum7mgmGwnvRNQEoYizhs6j DLQz5NwB0DkoXhX3yYx1+eDN3hwoGT9PunhqbbJtq4kJhFK8Vs63WkyCqcFYryw1 QhSM5oIHCblJkjWQxkTLwHYveeedgRKPkzKRcnE9e74026Rsv8e+D1W1AbqkBKl/ ZflwGxwH20gnzLvdK+zfNP1n4bWpYNamkatIjiUQOceXtwRkvR2uW4x691w82gnq CxkAPD2N5DxP60zpDBHj1xbycI8OYbyUjKOOijd5BkqcbhqYHC3eCCpVoAJBjOI= =plAV -----END PGP SIGNATURE-----