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-revision-control-12.0-squeeze-x86.iso.sig gpg: Signature made Sat Aug 18 18:00:30 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum f887352a69bb663db583ce682b56753a653a797d * md5sum 2ebc7a6d3a99352da126d691f23128a5 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) iQEcBAABAgAGBQJQL9g0AAoJEIXCXpWhbrlNRwIH/1HhqGxnLFUBFH/LqWz6Gdm+ kiN8uCL3kM7Fp6NnnzYDXrtYkJtJe9W8enb2mgplFXiqompnqKF2jGtTUn2lOvZS StKpNC9G484lPtYdnvCX3JUr4Q5O1u4njdDPQjkn8YJ4RFWlB30OCnCmb83efJdj zlva1U65IUdhBERTWrEk8URp6VIFyLWvrTjSKOhpcY0dxIRsL+e4Byng5BbiHcnA tAgBYGBtFXHlGJcUXufjNhQvERGIGgXWt3PzFkt+F5azqEihbak6nmPkKPlnXGNA qxo+tXm9L0S0H/0lwB7cn3qnDWwks2TbkhZ0dy2ckcfWQ/zdy9mEYbPM2m0o34o= =kMtp -----END PGP SIGNATURE-----