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-i386-ovf.zip.sig gpg: Signature made Wed Jun 5 00:32:49 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 1820e93288f09977e7ed7e142f6b477b09667104 * md5sum c8b7f648a4ba1389a9a942ed70fa8139 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) iQEcBAABAgAGBQJRrocfAAoJEIXCXpWhbrlNNZcH/R0D06KanCM3SqOhflMceH9S k7TL6WU1M+NJhO8ycYk4ABOJaIFXE0Ygb++oG+9sKo2fZtq8QnMVKdzWCQ6+eg1m gdCOhEMOb5QYJDU+klIG675PNPjnX7uRRYX/8wUtz0GN60kJpysKCg/082OBiU8p qWD3kHihiU8Ks4KUD5M398ZioaECIbFIw1D7TKyPuNUu9qtfTu8lcb1AS/IKJWih mgzMHe18eTI9fibhMtwWS/n7tqbcjy+eAMQPBt8WGT1hoLxTXSGN6qnpTgLnHwtw xbX8TuxDQPCJfB5MdmJVax0x+HMJ+zCbFsq8jtydmKRCGTuNI6ih+OmelaW/zSs= =cGBz -----END PGP SIGNATURE-----