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-e107-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:00:26 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum edd3b8dd0ac29c1123de7c37216ecfa8b938e890 * md5sum 04671ff8ad7636f7ffccae4bee67b39e 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) iQEcBAABAgAGBQJSc22iAAoJEIXCXpWhbrlNS4wIAI7flb26F9miTtwiII2xlFJA HFXWmeVEw7vAZkcuSOCyLuuEEexuZoHDoeFhUsGraGXQ7xk8i75RfsKX4p5+c2FJ 2785xsXuFFYLQb/IaW10zKRo5Lkp0ptSNVz45hJwcQ+0+0E+y2JvJhVuZshoTEG9 e6HNppqvJZUmmxqZV1aCBxaz4ZUUWQqwArVta6zGl2/h6pSXFqvyoEJleELwrMG2 pbSEV6Vdn5O3iJmbLqRDvSpRoXoGClNo0qNYPR8/Gh69ExRjqujH55wGI815aFXZ 7CbK/AmGSadRFKCcUFf13SV6d0z8vz3Nvls4ijmU+VOf0cbXYyjMtf3WSRsMA+k= =IWVE -----END PGP SIGNATURE-----