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-openldap-12.1-squeeze-amd64-vmdk.zip.sig gpg: Signature made Tue Jun 4 14:33:32 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 5e78620cd013c006979384e8bb7acde1e59e981c * md5sum fc5dccd532ea7868e3a936329156dc01 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) iQEcBAABAgAGBQJRrfq0AAoJEIXCXpWhbrlN2QMIAN/U4eBzOo5+nqXJfLQ7uddL tqiHLUuSBi+6s5wPagfr+FGepbmJZyZ700UR+WzEnW9Ss9321FhqM5UsGJiR+BK4 y/gffBbbjrIw1Dtf2DxZ6pMIu/f8yCW2eRUpCHNdhfgXSJcm+4I36bgkdI92KFK+ XHt5926Hc+1DB7vwcSQjqOHU1ReemnonqzSLzLnwr2pVXM2VmJRDBrLBoFwxTl5M YDfR3BXOnBNlwpHtUj9HtOhGcOACcjn5NhDeFik4r36Tth6xwsncUgVV0UPX+u5X dS5Wbuc87WmSdkL3id0xaiVZaX5Zdn4s7Gt3FkLbvoPYv/+qB64HzwzEWbFBgys= =B8Yp -----END PGP SIGNATURE-----