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-fileserver-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:00:09 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 4494bfe60b6165b5248f200c871ad8e5a97ad79d * md5sum c731011c3cd439db9e33d0f4b70ea919 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) iQEcBAABAgAGBQJSc22TAAoJEIXCXpWhbrlNmK4H/1o7Bf7BOBJFfeCOqJtmtZNS TlsF0l32X6d7bZ9McBRLUmUaeldjZsU11ecVqIlXbvdKveaGMFa1zXbHts7IdY1W XrRRZOLtTb07TNl2rSvzgstoc2sL8yytZJeAtGOspZ0ULAHX9DNvE0TJcUlxKhA6 M10RgTtkC6VMc223IUvC9HYeHNFF3f4EDlo7SXF6tR0bv6VnvFcMbbBEhb83VVQN k0w9fSdILNyZWjvAZSwVeqhb3cW3NfZPnjJZL2KPuejyFAAVegIIimG+OeMrNdXC bylQT+8uHpytXxB+VdlHxFKvB5Kakgp242qzGs8Xg9DRkrBpVYMW2owqzKvNzpc= =pzFM -----END PGP SIGNATURE-----