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-mibew-13.0-wheezy-i386-vmdk.zip.sig gpg: Signature made Tue Oct 15 16:57:08 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 14cb2c2d32b79a2364233cac2e2c251f9b241cbc * md5sum a83a43c9a681d99c6593c4da04dad859 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) iQEcBAABAgAGBQJSXXPaAAoJEIXCXpWhbrlNXQsIAJLBUA55weaI7/jNcExfywmp aYcSyG0w20FowpuWXv++yojjmVMwFkoJ2sRTL1BGuHqammYg7NSb87Quina/eSw6 OKAnf9WdiKyQvfhoqW0Z0rjCKcKxr/Xo76bga3oHUwPWNd6TWIEjT66RCQHu5anx o7pguuETOflvKJluhPUvzolNaIvLbwMRlfjlF3PoVE/dWBYEOE5gHCjauuWZR4f1 /GHcEQvfEPoqUDgAiaNtXlG2N0SBlKC4h7/8vjFL/vbzvYpm/L1UkiD38hqxjgme tGloyOOonQbfcFMQmioS2tYem8M/mwsGWp9hxad2QTlmXL0Elm3B0DIEUMynKMA= =qlBD -----END PGP SIGNATURE-----