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-ejabberd-12.1-squeeze-i386.iso.sig gpg: Signature made Thu Apr 18 13:39:12 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 69aec7e1c62f8f4b2b5bd5e602395d568700160b * md5sum 28202ef0fbe431e3adf19e344f6c1ae3 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) iQEcBAABAgAGBQJRb/doAAoJEIXCXpWhbrlN55QIAK9p5IJirHnsFOUf38Tzc1cp 8mMwKKj3QT26LWX1El05Cs1BkcUqjwi9BZV7NhBrW6H4PELmm0PH69YC0lK9O3o+ F1Cb3r3pja+jk5DdLKUC+YMxD/LEXAtxOP4AI1u2hkLtgI9SrC8bYW/EPaHKHqPQ 6HDiWliBmWqItPNcPkRsBTz1vRnJVNd7Eh2UGr6nP6cNwUJuw0Z40kL9uQM4s3gc 2gUWhsrc71ReU5oGIQrMUlzUfCPrNvpHlcdnQw+mGXnI9AqpXvXN9avfB8dGOt/V w99pkIeY4yMZmHKbZQamo1xn3OhEsw8hBg24+ZcsK8gY+LdjvEnfBOryv63O1TY= =yplp -----END PGP SIGNATURE-----