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-vmdk.zip.sig gpg: Signature made Tue Oct 15 18:05:52 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum a955359be98139cb3964c8bad6758b3f710fceb2 * md5sum 01edd45dd107615989d29bb1008169dd 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) iQEcBAABAgAGBQJSXYP2AAoJEIXCXpWhbrlNhRwH/10oGg+F5+arUVNHXVSsJQlc ca2fYjOfbtqK/mnb1PzJ5C06FYm3KwcWP9ZmaZgigfwqIFLmWOWpPzFOX//ldIco y1skyhwAvZeMmp5BCDd61IodqPq4scKKvW+j3Cp/I8PWGVqrcn0UlZpMoVS5fFj+ ovKXRD0Lz/NIkdYv2Ks8JNUfn8XWAeFvefPIYh58aP+biU07Hs1Jl8EcJpxsIsep N9AmpbBQEd6Z9U8k7+RZs2J3RxXSdE0qjWtO6zdFmC/YQ3GOdtQ8lmd23Fmc10TV hnJGDHaaFqXP+0T1JrLqEeICQbsDxGkPRvtWccjJyVJ4i1PjAS0p6Samn/9s52g= =2OSC -----END PGP SIGNATURE-----