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-appengine-python-12.1-squeeze-i386-openstack.tar.gz.sig gpg: Signature made Wed Jun 5 08:37:11 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 3782b4ff8df5ce3d361801a2469d0591fbbb4b54 * md5sum 8e429433befe0d17662d3c68d80aa545 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) iQEcBAABAgAGBQJRrviqAAoJEIXCXpWhbrlNt+4IAL5i23aX3uflfGSOsuOWq+gV 7q+kqHi/VDR1HFCkLNgJWWe9s0eUl6UYxiLSKJ2foSJaycTci/7G3CA72mpQapAQ +G4RcVy+VCBuckPh7FpoOz03QuvBLu+GEQnJE7BlkY+hyc1maAEsMaaVCf1367KS S+2yJZI+MnqI2Ilwf3qR3qsRfuWBlDhDf8zQDZ9RQ/zzyWA5eoa/JGYUT7ecgnmL Ei42KKo6QI9KhRl4fMALKwvdeSASjWJCnHcWg/uVFKhkzHnNVkl1ksA3Z1p5vtFs PCZfHx/otHFTQYM3CZc4a4EjOWGUMxF13v7XrB1QXXVBtTbpU1pYRl/pDVGpUoU= =AKBF -----END PGP SIGNATURE-----