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-i386-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 22:16:46 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 52c78d13d6ede36c53f6abdf8be75a713ea55727 * md5sum 960cdedfc577dd6984887acd3152273f 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) iQEcBAABAgAGBQJRrmdBAAoJEIXCXpWhbrlNN0sH/0esfasZydDmgqs/TM9L4woz jTRh8x7b3zDQTUX7PcjnTnfCKKijXUlbp5z/1JhgMk2cY3DeJlAlo+LOzGwMXWbt oO41YZiYJwI/rqPjO09tGQJD7quEeQYaQWqGA656WbotGdJCoOPk2TXkeBc7RnmF vqeAHTUbodVRPiKN00+IRnWWvyT8fkiMHRRaG2ZaMmHE7BXiUo9DW0zxNtaRzGhz pKBD/liA5E9FV33eDRS4nsT8x9x4nWcKsT1CU9PV7202ySRZZm04DmBqoNPZkiZp BkgafDPXJMGqgdZoj/iw84huYmqktFnbucsBvk58jdaXujk7FQOuFCvqqsAkB0A= =DN+O -----END PGP SIGNATURE-----