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 debian-7-turnkey-projectpier_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 18:19:38 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 5d794c83d641b5630251a8f05f2f9637558ab12e * md5sum b887cff8af091512234df0edf92eaa2f 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) iQEcBAABAgAGBQJSXYczAAoJEIXCXpWhbrlNZXAH/jCgB1BEq4msrI01YAVyB4+M b2g72l3KrRghhIctJ5LAWV6SaP+2pBonVYHvsm0oTfTUmvuoBkzEvuiPINlsCYbX XeYMzipNo/ta+Oo31THUnYzyR1KWxKhyOyqqggWGetZIMj35AeDoH98niH+xRSoH YzK0FpxPK+zoIsxs74FiXdXD1Hw4o+sZQkHnhlOFfGjkG0900N4DhOdOtmV2B9xN nHjF5DozvmQ/9CVG9+vpeq2tO2OSHMf2YyjyDFh5Wqqf6ubq2XbfrE2VQApguJrS uP/n3sbusgAvIjQ6lvC+wF5w9JgzdMjqGBJonwgU8hVuJ28yNybQ465CH6BRojY= =ZeXK -----END PGP SIGNATURE-----