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-limesurvey_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 09:00:04 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 922313662f78a272bbc7fb4bc84dd13169d9b72b * md5sum 52a77b80b61a092d2c18abee806ff1a2 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) iQEcBAABAgAGBQJSXlWMAAoJEIXCXpWhbrlN3c4IALfNjLc/9kDdoJ3FfNnW6NI+ 1Mt7RDVV8kkEuTd5k3NlB3kszND0k5E7zJmnEXL4axF2csatmzVEF4llWvIj9/fl QNSLhDSzWEi5ejMmzgyopZbuP0xrKYHOXgafyshvVsJHZniF4jDeXEM6W3MoxUAg ZtzIuv+Hag7RoWJDsI9e9pmmOvCwcWIDgR4OGLaYisyxXKLVrMu2eiKmKB/JHOIj ot7N6rMKifh16ODAcVZ6hGMpiT8xoZVYtY3d3SO7Wnq7Gm3lDu5WuIjfYKCmT+O2 L3FKOf+Tqkui0f/RqQzeoflVpwM7MO5q9BjLB0Y6+33+V1t64moCmhs9QQ2YuyI= =Qlg+ -----END PGP SIGNATURE-----