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-core-12.0rc2-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Thu Apr 12 14:45:12 IDT 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum cf76ec0ac59ab3e46685e209e5cc23a302bfc5db * md5sum 0edb50d594da7f7e255d4c1fdea984e9 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) iQEcBAABAgAGBQJPhsBGAAoJEIXCXpWhbrlNCOEH/R4QYLu419M2tr4pxDXD/m3K vZ0uf8huOQpugCfPsqdDQt8f+3gaPDxcbs9wFDtRgdxbNWNMhpYVZqwsd9OhUuRc HuHu3gDFXNGRLtEp2rWz9dgRTVf+3tQVDtIVR9FXwEWb53WP0LazhVz8wP3wDjn0 7JDr9lwLdQXcgafisesODNirF6vHj7TnducwW7qZ02NGf0+DVWIQfzBSEwoxEsfl GL5L4H9ypXmUDLuf0WfrE4PX7ZxrcaFVhYbdJD6+TY/0XmfkSrpRDUhRxsRc1KcV 17Ul3ZbZzFNZ10jH18thr/vXzF1ZnR7izMjso++Iu+l18IYkDfMfHvIgr4OBM4M= =w6hH -----END PGP SIGNATURE-----