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-sencha-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 16:26:58 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 531974b5194c94c8297aa058823c5bc91106d183 * md5sum 38ef72d04b77d17815ff0de95138b511 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) iQEcBAABAgAGBQJQM7a7AAoJEIXCXpWhbrlNAc4H/Rl43G7nPJhmqzO6C1SbRZbf 7ynqLT7Ew+dUpOxfkC3DKT1cduLtSGAznUJnG2DDy4EscCM8wfdV/s7TVpSB/Oav LVFiaSgGWTzFl693RpMsVGi8rqLxlOTA9cPAt+cBhZZOaWj3ZdGwdp8vXUKZiYp/ ExZcZDBBdtCvWkIt3ZU1+23RKS3P+HgWFknYdw3+Y9MJQrhtT4n/75DhZ2/0aafb qE2ClK9BpeIzBvGgmlLmAdGtooQawc2yWHQhig1LZkTyGIFWKHjX4US1zxcv3a9D taQTPilCNEp/UJTwt+HQgqLWxQdfAJObnYkAYjzKFQI5V9kxJXMJAPeMkjZ9Gzk= =OJRZ -----END PGP SIGNATURE-----