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-couchdb-12.1-squeeze-amd64-vmdk.zip.sig gpg: Signature made Tue Jun 4 12:48:41 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum c9cae3a10b75603f856acdaf483021be33b50a9f * md5sum e1897f0d31455da322dd6bafec4a11d1 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 v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRreIhAAoJEIXCXpWhbrlNsKAIAODhxu8OFgo6m09wFyhU1Hit 4L74zCQdn6SRxTQir2l3j3XiIpWe3O38cdFKnIpf1w1yi28Lz8qkCXHje32DESK4 CyCF0Bbkk8A6/AaErtqSaeE1H+vvO/QMTHOQNp11maFb2Pe9SQ6ifzuB6Hl/TdgL N0V320xIUZKBGfCUf4+xAaxaZYVPU7bpXslJ8AVDpmaFc9+SZkVx9ZlO61wpenCg mMbROxFvvv7I2n/gM40f0fDBofiVvEsgzU/sBnaiOqKPhsXYzzQvEago+tBM7ff0 SQV79s8BmtCGAJxFWBhv4cTL8KfCNO5tWGUxGF6x13Tq/yhpSpNXBPos6nNSHn8= =C25M -----END PGP SIGNATURE-----