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-12.0-squeeze-x86-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 17:10:03 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 1ba4a0453dd9ccce021eae661ac9dea635a8a18a * md5sum 8abd71881f42f2e474511138f8e7a474 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) iQEcBAABAgAGBQJQM8DfAAoJEIXCXpWhbrlNJ7QIAOX2seEOx5pAHkSJLrWZ3Uf5 9WD1/4bENFbUKSb56NoLaKcz/tG2FEyBg2/RzadWqk/fdiYQEDQYXQA8Q6xtfr2E WGMCh9+47DpqgBNNCu5wZfVMXChpqqIjHSmyezA5LHHG0rccdIZiaREWdi8ta8Om TPGj4UiZHE0BF28i7JPHBddnINSXJXdIvmteLi/oS2VhOC3n4dw6QDNJB82o/fIa aqwkLwfjqeDRS0StSepTdnrMl/6z2g3xtRcioVVbtvTVHwaNGyf16CWWb7jJmkHZ FMf49eWJeKrtAk+kyECitsg10ZjVGNnJoqplYE4j7kaLp6+BMvP/nvi9NNBrqaA= =Hh4N -----END PGP SIGNATURE-----