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-fileserver-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 15:26:54 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 0cdce3443fe95c6ba5de2270cd2a7519cd109901 * md5sum f5608dfbb3a3c460e801880ce29f7028 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) iQEcBAABAgAGBQJQM6izAAoJEIXCXpWhbrlNwmMIAJHw1cHVUcQ9lmOEqDzMdzYo Ry7xjJgH34tcRWPFEYwc1L7LZPwbxIShXWY31C6oYfcTVaPHiteNX4a6dmmoPPWJ dGYp8ZvQ1hSbf5XQ3+oxl10LEvjFdQx1dlEt9fnAxv4LlTnDv+z2/1PsNjYm2b4m l9X+bVmaLgxsHcVraahIcLCF4mykv+370207DVakDO3r0+6MYm01NF336Cpx0tds mAi1BWQ4fX1eCNXDFJy3t8LWqVdr1fl8HrIzXI1gC9FNJ3jRirwe43g2zt9lyXKo miqN+UtSepCu+70iG5GPxyqX4dUU6vYueFj3WZ0EFBiqV7UXxHVUTM7Gw2i8XII= =YSfK -----END PGP SIGNATURE-----