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-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 08:49:09 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum a7154c62cc1c4b5ea1108364ab1518bdad237b71 * md5sum 0b15ef7d08dd7fe6d0d1fabd04aa2626 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXlL8AAoJEIXCXpWhbrlNGeQH/ih7DfWO526hgY4c7xpB7+4k 6cdY3c/2fyEYlXVnXNjTgDvoknV/fvgilgoS1JjKjYJjpKrRmU+0WdpHMct/dp4D A8tGdJDkVJCxjMrdJjDfxRix7ZPSiO0/iT1+zfaZqurAvbWrKKJqo1zAorm9xcfq wzHjqJDUTI/d52sOD6LpkucFxFertZqL85+nOpfKXA1sjGf2Gm+4mc23Bt3YI80o qbLegswpdNkjLpriG4QnyYhF7F7d9Fm9eN2TdzgfkkJMG3fg6Fybbck/B0glwjem TgyyBr8yzttraUDYBuq1Q3YhjcfzcGzPdvCgD5izDqn+5+/IrRJ6kYE2Z+C6It8= =FnpE -----END PGP SIGNATURE-----