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-lamp-12.1-squeeze-amd64-vmdk.zip.sig gpg: Signature made Tue Jun 4 13:41:27 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d2130a149eddd0e75b39b08248eca5ab61e37b6c * md5sum af8fec73ffd86e253c62fa9e70e05da5 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) iQEcBAABAgAGBQJRre6AAAoJEIXCXpWhbrlNfpEIALCjPHsoJoVMTYL9HsgPOq9u svouzz39rQiqPArgikgpolip41aMaL9qsCpfCEG1l1kXdZ+YYLRChfJMDs1jhS0k P11CkhLadrFzMHYbsD3s3QLJiE2tHTLLuas5zb6BJeXIzy5rjH1UD3dUTJlL9jB7 Mw6Cqo49dU8hQaU2m0ZNy8D09u4BIX9vIflO2VLGd/szwl3844HU+KI+qMo2VoCH FrQ3RYMwdt9pqteZVz0lRSXWZZxrKH+U270R+5DrV+jkQ/5OsBtRkQcgxvEgQPec rX0pT6VpJTF1IV8lJ8UZK43NCe4qmQsBvoTkbN7MlwCZIdM1uPCSVYWYhL5Doho= =i7IW -----END PGP SIGNATURE-----