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-mysql-12.1-squeeze-amd64-ovf.zip.sig gpg: Signature made Tue Jun 4 14:33:17 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b79ef39448caa45227f3d7d68bc53e8febc548d3 * md5sum f0119f75e4c7f7a32d55828a7582fb5e 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) iQEcBAABAgAGBQJRrfqkAAoJEIXCXpWhbrlN5pYH/1WbGYkCmhX31zklCjx3PjWM mGcs1A9j6PyQAFf9cH16wsFrX/m5B0+z8i1kICQHlJpRieZLwhiXus+y8jgt9SYV PCVNvT++3mgESFnDGcSEQ7jLpPcUGce9YGgPxZQd7Iqtg61bCai7VXYhMbOts0yH FIlsSzoaqQmq+3kfuF5+PWcfrRBLr4EyOXTBWDrFEqf4uOjijUI9L2V6+KD3KKq+ J3mDrGGe7fT2nb/0qs7VF6q3jtqCF2EoUpxhWbdSRT5/plmoOOSSdlZNH9iiKm7Z En4F0Ubxq9O8fzfD9AAGjOErHUbnmBp1A58tcBdImVKU+cTRORMFtzlIEulXUzA= =6KAE -----END PGP SIGNATURE-----