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-prestashop-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 10:07:33 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum c6887ffa0847ef58289325e316f20a3bbf6e8bd0 * md5sum 5a28a7e56617d1bad60bd02e542efb6b 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) iQEcBAABAgAGBQJSXmVcAAoJEIXCXpWhbrlNO/sH/RZdbPUPz6iGirSMauseOlLT Bk5TIFMMCI2WeeWxvl7vwck9NnJRqN0ft7IB0fmHQwstZku9/i9VbZ6Uk0IGQj7v ZoyU+Hbq3Re4rSVEb9WWX3A1cTrxqD4I9z4Kdd9yUvgwH8gySIxau6EOsse7QzDK Yq6XitRPhu5n9XVpkFiiBtcQ/idU9qB1TUTeIknvfzaBCaJgovuuBVyOZcz9CLhF AyHyU9S+OY4GX3854tbqpaNSQ+2wAxpclYLMACRbVzDkizdkxfR9FBOCBFI/i+Uc M47KrGonXSnE1kPhRS50JgGbQyOOR7+Ci1918RUDkP+BEXce3Uze42JEro9NRBE= =Q0VB -----END PGP SIGNATURE-----