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-vanilla-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 10:39:49 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 9decef354b90c85e40d91aeb930b5b6830b2ce89 * md5sum 23b74664e0a976688a0f2a53d68bb730 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) iQEcBAABAgAGBQJSXmzrAAoJEIXCXpWhbrlNz7QH/3d874k0p/gIR2zQcP1LVmLe E8N/eLcZpMOBf2la/MkMz4q1HJisIKTZN/LPTPLDWA5KTz6Al9hovUp+BhxTfQFo gdMcEIMCzqsnXDPQ68VfjKBcL6pVWrReZgeeXYK5QNQJ7f02dB1Paw6HsHpNE5UZ yrAD25/4f4pbI89Ln7cU5FcpGHeJI6M/mdqKoa1gqHgKd7EDX7zBflHEWSpN2KJx 8/I8woWxlgEQViYesypEwphkedxSUIGfTxciR+WtQ/I9XdDcoCGcHYr/yRJV11UI DNb5SUxCDN44Yxfdi9m08zLi8djToy9GIKJ4enkRPCqhyn8BZ2S4i9idPsAvI1g= =hWHf -----END PGP SIGNATURE-----