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-tkldev-12.1-squeeze-amd64-vmdk.zip.sig gpg: Signature made Sun Jul 14 11:31:11 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d5686f714d6130ce9d4ed6a4948eeaf654ce3fe0 * md5sum b3f52187921c8658d63745ca314bbe8f 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) iQEcBAABAgAGBQJR4ov4AAoJEIXCXpWhbrlNzagH/3Bh/YFMnqRT5wJ+S1QvvBb7 cVY1ZfjkISC4k6PyDaFfTMabjLlXMK6+W0+NUVAV0oAAwG5UzyiJZTqgrKH4Ep0O kiwoyT6zR0fUhL7Erxmh4/lz00wKxN4PFRBbONqDBn9F6HkZ4VPBAFsNwtuHM1sx J8bQrk9Jn+bZfHJ62NkvubOEryeM35GPqZgY7knmu9BvSDlxFhW25HlyWuy4JxkY 4h75qjP8IuiHWtypehiLpqwJb+a63F86j3LmfMdr3FvGSrQaRxhmgF38JG7uSCTV Tkrlyn4rTJaNEm4YEEFY43toSTRq/Kzp5+y5RmTyUL3y8SNhSWQrMag8nDaoqtI= =5+ow -----END PGP SIGNATURE-----