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-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:11:10 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum f3941934e483dbad32cd9f501b2a4ec4954115bf * md5sum 737ad05fac6c4223f89fca48f04b66a3 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) iQEcBAABAgAGBQJSc3AeAAoJEIXCXpWhbrlNhgEH/11peIYVnl0pd903EBybVj16 HgHrgGFjfp6MgB4hzVnv2q6PZtfyESlB8iZRBwolh69ZY0txgTBTpz+9rb5vwJiw q+6W/E5vXLNx8iGjOWOVUoexucfcmPc2U/EeNkmtjMfgSDUNHNfoeuHWRObPj5uJ 66vfT1iMQMgSxG6kBuDL5OfICgpLBGgHs98/8QAVNkhU1R5rZg5k8zlLa+66WAGg Nb9o5pvEsHJPKK5DwVkP5RDqdE8/JAnAd0z+yR7BaxIkZaVlWOy2HU/l4uHJuCzp KRkLiy20E8ei8dHb1HPO328U3dadgJSGKCTOXOZuuKDiBCwL/axDTlxCmmEwHHo= =7VKV -----END PGP SIGNATURE-----