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-osqa-12.0-squeeze-x86.iso.sig gpg: Signature made Sat Aug 18 17:41:10 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 4a34810b02708f824642f09b571d54335dad1b60 * md5sum c5e92d2ac5ffb80eb980120c71f3c8e8 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) iQEcBAABAgAGBQJQL9OsAAoJEIXCXpWhbrlNYlEIAOy+HXS+biBdYvjp3XLaaWMZ 9Lnju9cbNBx24WFdgIx2U2F26WGKBgUS6yzZyN8YM1t3oRheDUzVLd7paa32YOkb MN6ILN4mK0pixkHpMxmuwdGCTueFdP4YiWdJC7guewOYlRFmrP7ZtAwkhzaawdZP 9y4ibLDwhuuNjjK8t4nItSKi9cDRCqfvkUzhKSQytzDgKUYPIzIUcMY4nJASBoMZ /+pbcY6fkRqwlo3D01b1Y69q6nVsXZzKu0qo7e5wfmld+vn6Jy+s+GRrFmNAsPPX JSpRErBLRGtiqafQpJWbaPrrreRlHZy8axgaELVfBvzpppJ8G/AkxPXtD1MkjlY= =e3rg -----END PGP SIGNATURE-----