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-oscommerce-12.1-squeeze-amd64-vmdk.zip.sig gpg: Signature made Tue Jun 4 14:53:11 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum ac2292ee86ae382d445563aa1bd043ca222aca9f * md5sum 90dd44ecb14f3e3aee931116d2562aa2 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 v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrf9QAAoJEIXCXpWhbrlNFywH/11YFNb8Ia6ny6+ypZ7mhCNw OdewlJKzO5gYL7JCq2xLFjagmZIyalUYj4IXrTTk0cnR8c/BPpJTtP+OSuwwJysy wmSbrcp5crU0bQGO4xV6bxNnn1looOyTLIS0+pN5qR9H/1u1t3qaChwK0tstGv+R ARjNSMJKyttGsiBDxfuYqW6RKHbOhH5QfwXRuMmsECDi+14wYbPCsQh3M011rht3 kIwty2ab0Vtpt/bOujy9yC/woifpuBK5ijNJJLtahEDE6deziBAH68mZvcOdcfpx nCT6prLADNBIKj6RJPRSxuvlf4IErhtXUbhoAr19Bb3UJatcSauLYTY0H/WtdWk= =yzTB -----END PGP SIGNATURE-----