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_i386.tar.gz.sig gpg: Signature made Tue Oct 15 17:49:08 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum db5882d8b0cec8aac7c490eae0b3cefa3d729730 * md5sum fad630c160cbe5c440c230e0d898ca3b 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) iQEcBAABAgAGBQJSXYANAAoJEIXCXpWhbrlNukYH/iL9udLZeoMjSMiMyKj+j4vi jrlf4fxURyUT3nsflOR3XNuUBDRbOFOKbgAoCfHxMqCtkziZIKuHIot8wgsixSP9 LibLyhsmOaeH5vnKdYC5bDHzY3O2b0Y5LDdq45nbemkYqH2avJL74HkqfyT8ou+n hjSTsDc9CQBcGzAMZIyxTNNwfsIo8g2hQeB2RyltO7KnObE+vWlpphOQcIXtYbl0 riOipqjODy3oLAR9JW0iLaMUb6fQaGL5SJpBscZBz+9DlgkIEVByJqpasrYpZiOM DfLfZAQWOkk+poJK58tnm8V7OuUT9EEZBGW0rKvH2L4O+zwqaSstzn+d44lxxe4= =7Fu9 -----END PGP SIGNATURE-----