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-icescrum-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:04:56 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 7ba7e046d92a83e2e3f91f53b180ebc4686cc164 * md5sum 3cd03b08294a1c39894b9a95761d6728 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) iQEcBAABAgAGBQJSc26pAAoJEIXCXpWhbrlNAKIH/RTQlKN00tqiycg95kYFb/of mqxWotI7F7dJXGbSw+DD8Ew1FlteaxrDih3b5ZGcnHy+jCNKzk6Jvyt2ORVLpv7j 0t5ZCjE6ImhSnWMYcZ4h38kTm7S0LCMa1GOJAGhWbJBAzU+PrHh5Wzk3qnvfE0nI 3wKTM8vgzboktLFaXjpooc2m9Fa2fCsN/BOUYA2z7Fs8iKpP9fZQC1o4HUoR800A 15bdM/w7C3yd7w/3SzY0nDMCu6zsCDUXD/hle1TmpBlMivOMkwonArLT8EC5yXX8 kMysNT2RCP/0VdOdKr+grreaiyCKpYwzLTNvV9sKYkO71w2Okx/nfjWAOX8KYtk= =H/mB -----END PGP SIGNATURE-----