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-limesurvey-12.1-squeeze-amd64-ovf.zip.sig gpg: Signature made Tue Jun 4 14:06:28 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 1370c2c2353c7f21b0b21211390f364843149ce0 * md5sum 0c995e923b6adf6ee1690bf25d35539c 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) iQEcBAABAgAGBQJRrfRZAAoJEIXCXpWhbrlNtzIIAKgi9Q6597thYGLZcIydK9Ev yPHaRTGg0bAgXqd5cD9knkq11PP9Dq5gO5vbCCPExovqQ7RR0+Y2HUqgKtFOuVry +uEjoZzRAHY/JO5nnF8uREMrZCSxAZJ6EEZILBw3tS2wHJm/AnqUNpBRsE4dd/AD 84EH5k4z0XOh/OSeLmAFrslP5MlZquHk38avkufwxO4jEuHrB/QJylRWhBPsCHXl Gav4BLcAFQFVdEWdIJv2QPQUr25I3LNWbAF7QGNmdtn7K+sPM7oD3MFnpr6A4XU+ e8DwSrPbJMIbKMu5JvNJ8fy0tz4eEQjNpT/lnwobbx18e9alMAW0YF1tB4ufj+g= =7rr6 -----END PGP SIGNATURE-----