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-core_13.0rc3-1_amd64.tar.gz.sig gpg: Signature made Sun Sep 29 14:23:36 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d866595cb9f411b66979888ade62c02d356972ba * md5sum 491d7a0c4501219da3547cb6ca80f767 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) iQEcBAABAgAGBQJSSDflAAoJEIXCXpWhbrlNMJ4IANHBMtp2vhFF+t9hoij9835S dB/LkoiRDjjMGlL+XgwZOhb3B+9Rl2rgfzZKBZrKmfyI9rdhtuyvT0Re1BH9CIvZ lSV1VCPjHtC+2DtrogWTNLidOEA9KdfRuGWsQMQOq0G05PmwTw9SgjkFgm/5DqZp cQIASNS/CbQIxRHWfIiHAKHcaAQ3sFSgXkiV9XYFwJDDoijw/PN2V1v8RPXb64Fa v5Pd5QdWduJXtaUFUWYufePBVpWHy856J5m94tLg5PlWb9DV3556BSDkJVw5MkyN aK2Gt0SwIIASYJM4HCvnPCc6EgfwfvNdKsCyo2YfDKkfakDSMVTw5DH8rtMGuZ4= =lSZf -----END PGP SIGNATURE-----