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-web2py-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 10:41:28 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum ce53eb6ba2971dfb65365b850ffa730d17f9479e * md5sum 5c262b2d89c2811344ddc3f63845de9c 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) iQEcBAABAgAGBQJSXm1PAAoJEIXCXpWhbrlNdwoIAIZNo7S2sMK4MFmqPXGmHHBE wcf8bXkNN3nycf8P9C17hbkTuOCaEPOjKU3VqWfNJY/y7mszMxSRnXfU2tb6tq6B gT9lrbbIHZSdrCA2+tzo5SIlBAGqVep+DRfdvawiNCZsv5+fZU3ceLHoUjqX0wJy mly+ocgsJJSe1RV87HKh82ju+UOHNuGgPpYlSKg6EaChWKcjPCs0VUjrP9SbwRCj sUttlHL8tmI6gIk9WfQmt3p6jsqT6JhZbrCqpZf0I3iH0n3da2DpgbZHhhHcSMjn Qrg/YvI3SDNAr0v8qIzwqn7VDnyFGNNRH/JWdH0v69GWYDRQbDewv8a5sP7NnZY= =Op/y -----END PGP SIGNATURE-----