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-12.1-squeeze-i386-ovf.zip.sig gpg: Signature made Wed Jun 5 00:40:24 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum be3e9594a9d0995dd7f16e491c3930fdb093f136 * md5sum 1ba0085aae0d7737ab3af4e624db1b9c 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) iQEcBAABAgAGBQJRrojmAAoJEIXCXpWhbrlNgHcIAOAb+f15MTVZtZ+ljjmz6GzW QIBDQkpawW7kGIszcjmtJ7axkfxM3AcEgeyDX2WE8qhYZg4N40DDQ+XNhy0u0UBB VF9VwK31D6dmqrbmxsCj0dVlLCuvmi37QI8bS7Oj5ixDZk4hkaaa8KEWou6sbibB ZwvUtudPjklU1ZBotV0bHZWRyLZwKvwJLwnbarqogGNPKS1g1T0oUIn5HSfDhVmt 6U0m1FXFo9opdUZ3iKQivq7NHZJBifAUcKZngafg/qQoFW8ITGpDRD/ZsX9C4/QF 4Ol54QK5ulnM2ww1sH1P1he+T21WGASy+G9zchAV2x6HuTdyw1wZ2YJ1sj8RtyE= =8M9K -----END PGP SIGNATURE-----