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-lxc-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Wed Dec 18 12:01:02 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 154b3b99ed33cd304da2a656cff77e605c7e0077 * md5sum 955da77088d3dffd857e917b31e8f13d 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) iQEcBAABAgAGBQJSsY56AAoJEIXCXpWhbrlNhEgIAOpl57itX+tVHawnlSq4YcA3 YIec8+uOMaPLaPLlnQuFgIlhM7f3s8V8j5xyz3rQ3//mJZO35NntEmxub+M3JnhG XjsHLq3SPwyFK1KDf01vPSBZLo1A04qMG9voKqM8FGutOmbQEcTy5u0+j31cRsU8 4duvQNo7+NI3tXRJmKCUA35EghuGavrN6UlAgfBgtJZ/jujTNFR6jS2qtSYg4ZX+ d1r3dHLyduPVg2lsAEYg1uB12U0Z7QziBUhl2NlLJxFPf+2M8oNBLWJQSA/Pu8PN HgfqWVGyC3gkYd6T9q1GB7bLgT5BTXAvtYxxc9TnTCUWuLKvwSpPbBn2CKNknpk= =mg8P -----END PGP SIGNATURE-----