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-7-turnkey-tracks_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 10:46:43 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e9c4efaa23c653a5e8eeaa111508da572c1e57b9 * md5sum c6c9c1e896031532ed63f326fbd6d809 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXm6HAAoJEIXCXpWhbrlNfeYIAM9OcFZCJqJ0kUe73h59QRJW It1HaL5VozfoXwbqTtTyvGN6lxLHv8sePcRXSNWEv25fdaSJ3Xah2zaj1/P2NfnO CXQ6wop6BLLjDpYi8+aCB174Evq8Yr6/WDDncezg0aIGlxR9oP03tqUOC+uU2Etj V1QlVGmSQ+iXvqYSTN42TYxPnba2LFz8HcYoISS6aUTWD7Hs6Gi88EFzAvLBXD5L bhidWE9dRF1YEoCaZfutqnK4kmu55dxiJ5CrkJmXbqoJhwCP44CwJQXbgsP9fZr+ WwbounDlAmNx+O/yaMTjpJ//T1ZUfmdH+U1qu1/ri05IHacYJIb3NBu7F5599io= =x0ET -----END PGP SIGNATURE-----