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-nginx-php-fastcgi-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 09:21:20 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 2ebb1b387ef4006f7944a87ecad653df8f50acb3 * md5sum b2a9deaf782d790993c56dd40473a65c 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) iQEcBAABAgAGBQJSXlqHAAoJEIXCXpWhbrlNOjQH/j7zMaogz2wAENYglk/2YDZV VXG+Dn4GuYGMChDswryqNB3+8BxDycl3cwBufqywTRsoLRovRg/Ixa4yC9XgbWrX xQc/6QnS+jrgUs4YRn9Q5mRwYbobqLUbkg9nC+T1py1lay2oz2gkbel21UQfkwzN aPJU/0OkKaqd7YaiiQz4GsvlqaK6mO4hnmn2nidjtPaBlrDZd58SXAQFnmKz28h4 266zBd3bPkgD76MqYAYkOrAWIGj0gxjZIan0r2ja57uvm4rZ/823xwcvLwDd1ZZN lxrJsJGaGvrm0kWb/4VR/1KVv4pRhcPM97/oUBREl2cqjTxk8QcWb3lDMswEut4= =zgGI -----END PGP SIGNATURE-----