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-mongodb-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 09:18:34 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 4c0d9625a3e3911bc3c94cd15f6fdd24caeadfa1 * md5sum 62a22148a202b8dc71a84d0699eacd5a 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) iQEcBAABAgAGBQJSXlngAAoJEIXCXpWhbrlNGQEH/AzmFPUs58wIWF1RqKlkXNtY gvVsCwubfvkNzMhy+J2LiEo0dCSJaj2l+2/l0IIrTBgzxq7ttRiLwBd/yd3/pI1/ 8dMtBPAGrF3XtEfCmSc+cggGvv2hsjvfspBi4NPL/Kpnc1v72c/0HoH6QO8wa8yq F8tdcXr0aSM5DPy/7J/xGfrETbLL6oS+kOOuszOVtmYxnV4dH7HMOXup9usJG4Q3 11HL1UAzTyS6k6zekDIbWjeDMNCp7I7q8iuNagVhd+OUsNzjV6tlIkXcebdgigVT 3VrBMVedseg/V6SOhm23hCv7gOvoyxRr97hdYiPaUOzc9wU/yE8l5hqN30KQj6E= =HKHI -----END PGP SIGNATURE-----