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-bambooinvoice-13.0-wheezy-i386-ovf.zip.sig gpg: Signature made Tue Oct 15 14:51:10 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 02ed19f856d4d90d759042ef40ce31c473b88fa7 * md5sum 1da89b8aaaab1037a4bc933b791dfdc0 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) iQEcBAABAgAGBQJSXVZTAAoJEIXCXpWhbrlNsJkIALUZ4TaPx/5ILje/WBGB3OQ4 QGsyVJruXHhCAlOnbGCGzcfn9PKxxVHptm0SxuUdV8XsdwOuwub18vd1M5kMQ4a5 9MyiwMnJNAfM2NNi7DeQ7kxT4AuIHRrtSPT8Yn6UB3x3XiuxbvUucWaSE5G1GcnJ prhhPmAomCSGKHO2NTejziuFOvVHxxzNw6uNaHKWkSgxX54PuWHyrDNPLyAez+iA 6dEk+DlDSOE860SGSrUnA0P351TMTq2kydu3GZ86hcVcb3NIlF29GUMJj2YRn+Mq LdWNa/0wofGwAM4gp/Svfz7A07bV/4jPPZDB13iSnhVx1EhkEvTo1JQT4hMwOYM= =Amrm -----END PGP SIGNATURE-----