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-drupal7-12.1-squeeze-amd64-ovf.zip.sig gpg: Signature made Tue Jun 4 13:14:22 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 0555656c8632f9b165cd12bd5d0cd13a114cbe2c * md5sum ef6e4b5c13feddbdcdc7edb311be9d90 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) iQEcBAABAgAGBQJRregjAAoJEIXCXpWhbrlNQu4H/RpxJcUuwhijok9SA0DeRL6p dLmzKR4nn8aZKkjoaY7ZG00viSDj8bGrs/fOdbqCIHf0SmGYMEBXqnTVppeZCTiJ ek6qFzs0HjWg6sLs2Y4XBd7gt6Mw4YI9EELCZUrTkR6A3qM1nAsQ3bQBIzD2kKr6 KmT6Yk9V5MeK/RUKbjKnlKdPljdxV79RohxLOkLiJzY7xopziyncPcLiJZmzJAVy SNBM8rlrQ9SH4j2HWMnVOiOxZTcJGOMvAceCsVgtkB7LqgC4DhlluOsfpoK9wgBa AIBczaImDsEYb6uv/JBk0fGS48e04r/vHUif/pLDtm5qiYCM3AWwBjuOor0rRAI= =J57Q -----END PGP SIGNATURE-----