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-e107-12.1-squeeze-i386-vmdk.zip.sig gpg: Signature made Tue Jun 4 20:43:20 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d42fd4e840845980d1802763a2972c931b55d21d * md5sum 9fd95ea5f35261afef374962b414ce09 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) iQEcBAABAgAGBQJRrlFbAAoJEIXCXpWhbrlNB0EIAIb9pZGan1oHPkMsPfR1RLE7 M7zKF60ohd9DzYbL0EFSq4kIE46emoMh/Y33XhCJpMRsEndFuyweMyuSFSllO+vV N7Ugvo8Y6P6DeggdOHMnnw4Z1G7j7il/EWMrMSmQCNfLiPxLZDmVeMXgJGE+w7Ae 5NHz6j1bcKdt/2/5QvzR0E0oVOxtjRiB00JbbyuFYAasr3/m47R1W3yeAn+qApq/ KDUIpmBOblBCQZUmwqZNfsQvmur8DFPq0oRFtYANwPssYrGjxTvZdJE/uraTzs8+ xChj9xlpwS1l59Hg85TfWJIeCMPNNZGC09ylQP6TQoh/4YUZ8fe4GX7+TSx9LAE= =vXKW -----END PGP SIGNATURE-----