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-phreedom_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 09:49:31 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum c7cbda45c59ad453c3d6378af921da000238dc74 * md5sum 2f4ee86613732d2666927602801d6de4 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) iQEcBAABAgAGBQJSXmElAAoJEIXCXpWhbrlNWZcIAIY1wWbTV+CGXMAoLeLk6W95 FK3CR/elgIiK31jAn2YlVAmZmN+xMNVZQGRFOkjecb2ORUO6yWXRG7HFTJbSWbrA DyX6NG4fWkD0KCfMTBXoe8h+DdNMuHUmsx76grgST2ovmjZjV42KpISpWtF26xRI a8GgAn1hlJYTpM6BH8U+Cwq3iLYyHuVSmGz75IcNhRGa84dgfS8peYL7jXed+Z+e zmFkyGEW3zRUbATHN0kAPOXqX9/uWxe771Z84N1PLfQGw6PZhAfW0b6rsu1ZUttt jsOYC5gMeUExlA1EqbAD0oTfaaG/izWtsMQ7EGRIk4V/WWUKL4iwIZ3HBQlOUD0= =W2d+ -----END PGP SIGNATURE-----