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-joomla25_12.0-1_i386.tar.gz.sig gpg: Signature made Tue Aug 21 13:53:34 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum fbb09477c42a31f7db4665469812e42682a16229 * md5sum a7edf47ad9d961db084d91614626d018 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) iQEaBAABAgAGBQJQM5LWAAoJEIXCXpWhbrlNxswH8JR8sp6CI5JfrJ38J04Gc+wy poigFh/ilfrACBMMt2wkImQVHD7nGHmZ6OHO94K4TXfN0KqKOwbnbdUsSCRsDJxs QNcvw5lOa78SJZheBYRKFSfR86Y3vDQ5jeZ5qvmAQRyQJggrW6Peu+aHbr0Kx1za 2l83LDRMle5eVBEkf00Wm7AUc8nRFCpmnuQ84Jd9QehZDKrSXu5ytP93eoieku2f ZLKOgJju0pNivLuEjjaCzXbBXPtSPQA/L0jfPFxjQ+1oGkxaybGqTAx447K7Sq+7 gTUV/KYe099t5nC1WFUkDxlziiCYEPXJ7CSZk1wSyjcf1jhyX309ty8YrPRG =xjS2 -----END PGP SIGNATURE-----