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-drupal7-13.0-wheezy-i386-ovf.zip.sig gpg: Signature made Tue Oct 15 15:32:07 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum f4faa5995b188148ad475c6d80ab18f1953cdd3b * md5sum f3b408c75231b74883bd706b8cdb2412 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) iQEcBAABAgAGBQJSXV/rAAoJEIXCXpWhbrlN11cIANgexP1U519/cnNAG7zdKXFE Wjb2pvGpwbsl3sD+fzxnN4AnLbgGYlSYnkMDX2n0CYSV7nGPTq7nQjXxTsDWFKTF g/8s5WE8ArqIvCt2t8jO2eL2PeOXJlLNt8xH1ZEuh+eIkIhYRN3d62SWC8C+tjan 6EP4EVAKpUNNA1ytlJShhCDAhdIAEEuiu6ymu1WwAJp8NHW91goXghLZbGW0r/bJ sateKOb4q9D4XfvF2YIxCUDi0CENEsOL2hGGEwUxDua0jg0ayUtHEvq0/O+XtLhC QZgetD/MEtj0+Q6ycNOKMOEzgP8rLDv5Odf+rfXaD2gIQkZ/bksGJPLMgPGC0pA= =Tt9F -----END PGP SIGNATURE-----