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-i386.iso.sig gpg: Signature made Mon Oct 14 18:51:56 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e0210e7fb85a60003321b37570e77d18a96b3b84 * md5sum 6485ebdc82e59791819c8a41fb54249f 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) iQEcBAABAgAGBQJSXD1BAAoJEIXCXpWhbrlNEOoIAIRvQbq21XNszkTFNDeshVzH wbLOrq/mvKVwMv+MNqdR84JCk/bOXgHYgoRdIpASj032w0ueFC+i7oeF2rFF9Vnz ypmlBG/r5bxinUi2KugKpFr/ga0dI8Awxxw7rMGkf7QEPdLeDpU/WJOCapYXjq+2 APZRbN417O3+Xn0GYq3TSzVOI3qQZnlDHCEFUYSf6HLln5PYnukBbeoLwQa045eJ ayPyd6ScSDRpryHo+cwivS+jot1ED5TTAtTQ8KWanSCSBfHWzIAzu8cE6cyLmUlj ilEh2Io+PKzTib7SRFXaweS3Bpgw7hKro712AlIzkatqD36y2py/ScoN0kuG070= =asay -----END PGP SIGNATURE-----