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-simplemachines-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:34:28 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b24020580db8bcceccd043e837c4838cb89ea0d1 * md5sum fee3ee11ca88f819733a6be8a094aae3 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) iQEcBAABAgAGBQJSc3WdAAoJEIXCXpWhbrlNeDwH/iKDD+mjO3NwBO99dxccBrog PR7hvoslvQzabz4/mToChaQYpZip9Fm9HpSWcjnSKQd6iGDJQd1DCTvd0GW/O+SM bcINMcgIkifMtm9VUqpAcufM7Vpam1Q+m2GVYA7dBBAeXVjzqcFSRXlXhPsxHbdL 4H+qIQ+xmgPJtxzrpT4Fm8SK8ZAntRTbXG43z3xfK3ls6mYKwnz8+gl3SshPb5md qmLW8cvptndDzveeaBkQmFZoH029+zS/Bm1WD0H8PkMTPVF/3U8iDqeCMNl4w9hV g09Ho0Fm91W+9WW4hNtfX001Z4w/CQqH71PrEGg12RxXol3u04GBcLPRtyAYX8E= =6Hzs -----END PGP SIGNATURE-----