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-moinmoin-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:10:56 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 17cd4f1e7b8f14e2f36b1a79b3449ea5792dee64 * md5sum d7c7bc66872294f7f9c157508a09c3cf 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) iQEcBAABAgAGBQJSc3AaAAoJEIXCXpWhbrlNoUgIALbR5GHA8y207WbebqUBer0X ll+WYHSso42pgO3Ow/NPuap5qPiZRblOLLu5FqfVGfot0YBuEUfKo+yoMFF5vcV2 CqLlLfNab2+lXnHctGZq2wjwi5NtvH9NmdNKOLvW7mun7XE1HQR+ribHdfSI0GI7 c2bBvS/GEPx0QTZ67/TWL4e74dTCTUMxMpxrTdbiuaQBL1BzjP34qkOWK6qmJ9Gx pls7OYREty/v1XAsWmeE6T114E7bOrbuXD/ltFCXBHkkdGzIf7tsoeYzWtNK1no4 Hc4P4YyAYojP5sYQA8Nc2JUxljFqhzPfX+/7ZoHufDQqp32UTqk89QkzRMVzWCM= =Zzht -----END PGP SIGNATURE-----