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-sitracker-13.0-wheezy-i386-openstack.tar.gz.sig gpg: Signature made Tue Oct 15 19:17:07 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum fb9619de1bb069437c965fcf415d7c1dddb68b22 * md5sum dc01f5ee7af0b0c778202ddbb7c70116 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) iQEcBAABAgAGBQJSXZSqAAoJEIXCXpWhbrlNCdQH/Ap1xHUSWmMHk6az7JiQ2pkQ EObb74vuyqLYaduvErQsoK1o/9Pr8lzoxs3yVgv1sQQKulSFxEnkV5tqIS/xp2FO f6MTupE/06MeVSFO5x+XCi+6u2eNVuMy/jBBQmbDb+0k1/lDKpGrS9qMuXVF7k3x kKXyECH1IieRihj2Y8jfVuXpe0fHKV6n4nT1Uxa6Yz0NumvQYSqWID49JtthfDEc NEFSZMX/EvJr57xUtfRtg87mWUJMsqw9cYp1mnHnoUatqlO44YzsBD50XR+Kunzm gHGQ5gFg61kiN5w9uUl3bv35gAKSjzydSe41x9XwZLso+DpFsV28oPK6NyOnOu8= =goir -----END PGP SIGNATURE-----