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-sencha-12.0-squeeze-x86-vmdk.zip.sig gpg: Signature made Tue Aug 21 12:30:54 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 497c63d62871fd734e98f1643e3c8590f0553714 * md5sum 39aab262ff6aa9038b8c4278b2a9afb9 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) iQEcBAABAgAGBQJQM39nAAoJEIXCXpWhbrlNXuUH/j1d21RoLflWyLiHuzpsyPMG uXqfMetqTTufVnDnwAWdPuUARssfrRzpPIMQJIb2auZpFdwSLqtAWT668YNGGoK1 dFL4jgPdQrntAcjFLwA0R18g5CRYQAKxsdKh1o2VBJKZDOoxmAsntJLKqnh87fTk 7qXJ0rVVbRAyeET63pAE5jUSwYu4qE05Ns6gJoAs7c04oDguERfbuS99dBG4kwXp hWu+k1mmQqis11iSmCMQX2MDG8xh4rEJo2NN0ROtOmc3wv+7JeUHzwQFq0HlspDe MulkdoMxozyvgtgM6tw2l+n8dLu5/jwucPS81INpC04V/dEyeShBhisuasfLkYo= =znce -----END PGP SIGNATURE-----