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-appflower-12.1-squeeze-i386-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 20:17:28 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum da934062e21d477fb6c526975a46caa7e78db2e4 * md5sum f748e7c64459fd79ea27a5a1a139a645 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) iQEcBAABAgAGBQJRrktLAAoJEIXCXpWhbrlNTR0IAJ1RnUzpKS6KVPNW7ZNfNir3 6jy+bcEuSwzsG88JO3TJ5j2s3V8IvGkvzT5mYloT74L6Sh2AFDtEtnvPa+oVIFNG vYRcuim7mO6CeLkONFIs8uPsB0DSwL++pSGe8qTII1lHnQe+Cfz1eoFL5Qiu0uNE 0Bjbq97IDihiAYRFKU033+WKg6ByEFDgQ/rARd8MLuL5tpnvQnQRO6dqg+jRWP1P RsBJuIY+gBp/O4+XtDGFKTE9fI0eMpVilpYjKHBZnH88+iYZsJu1Y+mLdl1w57uC sZYKgP6Dl8NPR53EJdI7ZeTuuukblerPtcElVK+GIzFuJJ9bVjaN3RNRY0QaNyY= =5Rb0 -----END PGP SIGNATURE-----