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 turnkey-tkldev-12.1-squeeze-amd64-openstack.tar.gz.sig gpg: Signature made Sun Jul 14 11:38:07 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 346e888d1ae9110f0ec8307463c120d763dd360d * md5sum 22e14c352d6a8f3f9da7fb57e8c33b1a 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) iQEcBAABAgAGBQJR4o2ZAAoJEIXCXpWhbrlNvMMIAKiVMKwM3AgrJoGpDiR6LUu7 R2IDL3I4Y64HLEgCic7aPb8tdxCum5XkOTm7OprxrGusQKgA+ABBFxGjmET89XIi xC3ktQd+LXOwybGyDlZXaAPyFtCWa5jLCSdGe6lDoTpXbNikdYE7fWK4SW6NKnQp 17BAq1I1zVU3XD6YjF/I3nxIb4AGJGUgBMWZDZGHatPljjlRDjl/NpJKYqZMvx6n vpQj5zQ5AhXymvM83b14ZBsYipl0QmOdaQ3TMps73hNp9A4l1peG1bDyTolHsuIX 9QfkRXJ9qa0+q1f/AQmn1onPYkDcQZNyP18Ikfslm0qrqCyi9yMe85w8b48jQtM= =9sQp -----END PGP SIGNATURE-----