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 debian-7-turnkey-appengine-python_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 15:02:52 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e68e2f988f2852b0e47d173c9c2ff8b9b6d495b7 * md5sum 9883a8711a3196cc3b8dddd58797bad3 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) iQEcBAABAgAGBQJSXVkUAAoJEIXCXpWhbrlNFkoIAOdCEE6FmHQEygdusjIVz9lU 7QTm6BZFnl08xjvyHwT/+gFFwO8V+uF+OaIpEI+n912chYH2c2oOA4AwdFB6CTMF rQ/TKAS2qMcWk2KOz7WTVDWTsWWt68RS5iNhCdXtFTQvPYwkNaXGxz1xA0QnCg3d QHaRJzBR6Vl/28TWgx5a/YZIYn3d0B3jJyZFkzFeeHPZ9plk/YjsWt6oCAK9WeDp DZSnxq7dKCl3mY4NopsHbn6n8+cDkg6lBbWilsA9aP5772rxHFcEbZOH6M2doVo2 wQ450HYQStWpEA4cy3EzCsyUbwpZfFUBZEXqLZswLj8X/8YK/y3hgkJnZ+h9ugY= =9QF2 -----END PGP SIGNATURE-----