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-asp-net-apache-12.1-squeeze-i386-vmdk.zip.sig gpg: Signature made Tue Jun 4 19:44:38 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 06c67eefb71d29124da1f58ee8957b6baa41d342 * md5sum 84a3b04120c554b15796a366e4e6b0db 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) iQEcBAABAgAGBQJRrkOYAAoJEIXCXpWhbrlNYpIIAOvrBY3lts/KTOji2Bnt1Qfv +LD3LhOolEEdazWJrQieW564DuNIJ/ad6LVgRV75QVGobBGWxUWbK9wEuRvfmySv egSaAm/QbKVwolONr9eDnNrw260zOzPc+E37TrvxXhYLYx2ueH732qVRmceSNjSl J+q2ca+tsT4LZiKWaNc5qGlJPuaI8PwUIvxGxmd7W+WplJes5iLAhMhwvRYjWGxX ewqqC8eVL85AqpqmNuyqgbUCbxzcUFxb2E44ZehfuScUhmqr+MwNLTECVjbOcd3w 05cKMIoedrYpRfwXfAf77OVA9uDzniDiHldRSKC1hu7pRt/6bh/XAVLWjI88QHI= =Wk4U -----END PGP SIGNATURE-----