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-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 10:40:11 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 237230025a886131db48ac8d3577e479c7049998 * md5sum 224b4bde7e7e63b27d8cea3414f7b685 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXm0BAAoJEIXCXpWhbrlNYL0H/1+wb0Z/yrXDcxLBXeAe5xDw xdRYTbySgG2geU7RYRD8JV/JNH5rxyNAEJ4EJdTkxMo8ZSgLTO8lgTEjUMu924W4 baa2qtMlKxUc55Tev9TGv3fi8FXr5mLrCwJjjAEAMnyyFGvvigxTmu5qXQv0S2Sp J8crOqWrRX9nOkhL66RM+QTO/v5nRvxpTwv1iOqfJgn1xGaxZ3yKeyyDBuuhD23q ngzGCgNQNltM+oRHbsS218U6unYohyFXcokB2uFoa5gbMI1eYxH/r0o+0XalHwfo qG2+8tqNfdq1tqZHr3jHIMKBTjvO7UtsUWKpjpdz4LwFP3Xq0Vb0czSFAvF80z8= =+RtN -----END PGP SIGNATURE-----