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-tomcat-apache-12.1-squeeze-amd64-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 16:51:35 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 0aa16ae2cd06917c57d9f851f0915e7478d8835a * md5sum 8d23ad1dc91e217f4c1a0ea6adbfc98f 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) iQEcBAABAgAGBQJRrhsOAAoJEIXCXpWhbrlNyHUH/iXePYfKZEwjmFlf0WNflYc1 JH0f4tdLxd3FEFkMfAnNjazxsIxoIjAoS5+nZ+ah0YOWqoDFom05EIOGqqYQ6V7e DbsfA/2hbiUVSi2WB342mnk83H4MrwEC7zh2AYDYxZ3MhjdmTAwO8tmA63Kfg+ek wgR1n89IcmzVklnNhrlCxtxfNaUCWReqHD9vrDI0qKTibuY+T0V52Hk+26VYzNHm cCzQ0NluvyGg0H29zwrKb3G/nsBgyGVMn1ANcWwIHVEkHm3mfrWDjtAxf7PL7ZIk 1fkwwWZlI42cRDB733VBuMGHekzRHzWPH02zIIngDW+c4JpejerknCEJA+RCjMs= =wqPf -----END PGP SIGNATURE-----