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-lxc_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Dec 18 11:53:32 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 370604d9d1ef5c3714b71f284c076c0d5b841fa4 * md5sum 9dfcc9d4edbc40c38faa463840a1cae2 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) iQEcBAABAgAGBQJSsYy4AAoJEIXCXpWhbrlNKMEH/2x558R0oEO1sPza3DkKOLSQ wknxnPLtvsxOQvHW7lLkXQ+x6b2NkXN4lwFuVU3LTiUFOkrO3wvW6gpyius9LY06 nxJMJpxk0b9QlwNgUhBPKO7lPlvTPjMnYSm8kJonwg83485qRDb4ZMauZYWaXPKg PHe9C29b9U3PSE2LXdVwtGgrmdt+72iYWWxhAtAWfbSpf9F39y0Y+N0DJDa4G6Wb gCJ8mxCdX+fPgn8uCWwrfQ/tfk6/QXy4Ub2b673WvW016+2qpOLP2hWxoAwb/Jys TcjVCun7HunCnttrw6VNQqCuacPAmz3kXI1Od64LUgN+p23FY1bGNZIEhrb5ulA= =v4uS -----END PGP SIGNATURE-----