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-sahana-eden-13.0-wheezy-i386-openstack.tar.gz.sig gpg: Signature made Tue Oct 15 18:51:13 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 4f56e105bf5f562a578365ec7f0d19bf17b2b2da * md5sum c0de5ba61e61b60bb4057d7cd2ecc6d9 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) iQEcBAABAgAGBQJSXY6TAAoJEIXCXpWhbrlNLK8H/jMJUPvCvfP923uSGlRuG5OK i5QBudolN2tpB1zLVVYCK3g8sGJZtBnX5gvEFpVa7EvfgmhghEWzfWachWXrnaIi gRZfAsyFfSxSPV00obm/Ig3DplY1reiXZ+JjDYlCjSMRH3Lee0vn2tfUr031kLB9 dgrrjdR9exJdvvOP/2nacMhoBj+MFx/uWZwfQAmQNhiBdo4yM6SNKO7/X/RBjrIL BtITI+oqf9Wv5Y6YMqxa+QBune5hC+6y1QwK3cu0oIL1FHd9h4hZxaq1xTDmC8eN Geoq794n8VXKFzcfuqD/fRX5KKmbudTHlc9AIRzf0PYuVWODPgHIo5Cc9UkXUrA= =4AzX -----END PGP SIGNATURE-----