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 debian-6-turnkey-bambooinvoice_12.0-1_i386.tar.gz.sig gpg: Signature made Tue Aug 21 13:28:58 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum e84a8ee1a7b8aab2d5df48261aeb0ef84aa54397 * md5sum ff677cdb9afda3bc3a7720619ad7cd44 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) iQEcBAABAgAGBQJQM40SAAoJEIXCXpWhbrlNgO0IAMJ6x7FqnGNnNORTryG/dguX 7KEfyuad9GEMshZQXPeTDz5xLVsed7514M9VptgBInU+3unGXt7aupdYsv0FdeYF DrqJwLHj3l059zhYW87+lQlqeFboaRGv2wmQ+Sa34HIoQMsj1Di0ECJBCYFTMnYN +r026FFVRR2d15wto40sfAMNP1LUCPoSh4/qkmMw1qGPJQWJMWVEyBZ7EN0AlBpE D1YVes4KzVoAmO4lhx/2BWwF/GlgDm+AIVtUKY5JAWOhYhmU4WxIa6CfXRD4KP+E ihnJEO/8f7dqPPJqVg6T1ByIJfq9SSkq3KZHdBnWb9zc40VJ0vEbVcNKA/9Ov2A= =4OCj -----END PGP SIGNATURE-----