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-zencart-13.0-wheezy-i386-vmdk.zip.sig gpg: Signature made Tue Oct 15 20:26:53 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 8876f3da26c4bc012123250749b691709528ade0 * md5sum 5d8cc9bbc6e04ab400ddf2ea756d9b21 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) iQEcBAABAgAGBQJSXaUDAAoJEIXCXpWhbrlNqksH/0q8Aiit99Ir/vl1kyLh/OEU if92OUrqTb0IHpeyEE/tBdPQPh7JgRGMsccDmC8KG5irFA+t9DU2yRTjoEg+1qzI 3JmmHNhHjfxZJlNxaAsp6QScJfhH5HcwAWUX3V+nyU2Q/9OZGtSo/tTR5gk1GQ8r MCbEUdBEg983+8UJ+rVTN/ZH3JPHvubk5GMhjUU9xM3MLrGDMpRJKCET6eVEE+Oy cuMqehALMc2iWv7aD003zsLzqp4C4e1fU+QdC11o18Op3k3Z1aT9HJnMg7wIZbtB g27xPVinGjZjL41zSLJzsYDX8yN/+xVS8wW00dYMhc+V3TDzugE8aM7eet3Pizw= =DSbi -----END PGP SIGNATURE-----