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-mysql-13.0-wheezy-i386-openstack.tar.gz.sig gpg: Signature made Tue Oct 15 17:13:28 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d308e9f9fbe53e470bdec097396ca429013ec68f * md5sum 06160b397a65577153712bb594df5e4f 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) iQEcBAABAgAGBQJSXXewAAoJEIXCXpWhbrlNwjcH/1QYWzM/fpY4vDV5+0FlODj+ +3k3o6XtK/d+gx5imksccR0uMlyVhFwuwBEijrA4JH0U4+xZbiTnJaX44/6JJo/e qisBjpmBsp7HmI936s+9ANMbPmfsLpvWWNmhvZHwwGiurzVFyTb7GyLVm52gOzVC jJs6XVYhgyz+0V8Xnw7WsqdjNksUlwGa/jcEihOO8AqPXGycWEvmnKQZQHaDBSFE 7c2GPKefmkCpwxiiO05mqUhZYaHHn853+bIWum0UFrWY7lMeZDjDY4Lu9Nc/36wR Mjs+LPmhGJpuCUxg1kqAkpH9y5NMAo6mRj5PROEMwruiSuxF8cleawmGOT3O8BA= =TLgm -----END PGP SIGNATURE-----