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-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 11:05:30 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 9d4d39a258db05b9cab4f405e668ddeee629c97c * md5sum 85d0e8dbb066efd474abe90032a31780 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) iQEcBAABAgAGBQJQM2ttAAoJEIXCXpWhbrlN3T0H/0MW8+kYpKfswPcT9ryfHIxV eW1jjCHfNl0kZjeF9KsG/D+dBx1ofmPNgHj8unIhHCSy8nQuYmgJ0prwOASouX+X Qh7cIUxHngR5/wxxXBpZQ8E732aNZrQrlCdZ3/GFTEbQDzVbbgBW+v/sJlThrlig EroQnY21+6L/HmnMM5yaJWuGgdAoHvof50gyXenYnQH8vAqsHB3s7KY0GSTmUhvl faTV3+4Ete/1ZwdTbPAFVH0EpfbdvDvFpJZsxmPAAoMgvjZB/zkisGFcIRZqgcOe am/9bDGRsSwlQtAVsgnz+ISxyB7h4FePUndWG+uph5mnGvwB+2/r0UzHBXvPSro= =GuaW -----END PGP SIGNATURE-----