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 bootstrap-wheezy-amd64.tar.gz.sig gpg: Signature made Sun Oct 13 13:48:49 EEST 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 6aca5f5a89a8f3afb00bc84a0e30c44fd2f3fd57 * md5sum a71153e68e6ce8df875b4e37c0ca9cad 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) iQEcBAABAgAGBQJSWnqRAAoJEIXCXpWhbrlNUdMH/0HdrzY2o3HcKZxj1HSTrbkA Eankj26G0VFC3S7WHAgQ9Xs7EKKH7nfcbcVQgKogW6yit3CwO+zshaiKRA+7COTp tUfidDH+g1rrgu83lGLiXiTNEIS6A0D+kzqpTrDDLJ07UOKbFFb2IILSVNhPekRA GGbYxwV0p/+7Ug0u18Ktq5vid7Q726IzZB62UQKr+IYc/SggV/TxOYCVJMWBGwh6 jx4ibs7eigqxT71P9qIrY44leIkz/SFbzFQ3nKT3xthcaxGP/L5vn6nAe6Gv9oZ+ eCN7d7CYndbvJQO8oM0ZClTJFpUauI9fy+3xP02r9WjyHqxEBIMBg951U4AWf4I= =z1hI -----END PGP SIGNATURE-----