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-roundup-13.0-wheezy-i386-ovf.zip.sig gpg: Signature made Tue Oct 15 18:36:56 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 622787a898e97dea97c9f1e179cbb745af8177b8 * md5sum 67717eca28a6fdc5a117de41dca03b47 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) iQEcBAABAgAGBQJSXYs+AAoJEIXCXpWhbrlNorQIAIwO4gjW4YCNxPMTmkPeXCCd MmXEW7dCbSynxdX13ctq590vBjuDpo4ZirZ6TU4XNG8SrPWELDswOOSpwayOTjX1 XZH82zXG91UfIYJkFtT1J31jsrLCdohH7vG7cMIxyxSjy8u6r/L5dTcrYMEjXduZ HeCUFAKF37emWXOKvIBGg3qk6RJ5J3gbmuRTmYWz8YxB/26d8LrZVHiSE7Wl4dra E6f4zXleQvu7QEemyFLCof6Xmmra/X3cwNs9lnljLDag88eV6z2pBPskwNuIWrqV 2I2T2SKaK8ySlwzVCxkgLhs2wB6sM94/tBoKyGvHYdSq0b95BlOV8FL1cWKj7V8= =t9KJ -----END PGP SIGNATURE-----