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-zurmo-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 10:45:40 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 9eb7a0a72524cdca5ef9ceb6df9fe24880e130fd * md5sum dbd269e8b23636407f92867d5b3a5909 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) iQEcBAABAgAGBQJSXm5LAAoJEIXCXpWhbrlN4lMH/A0vVoyQMPipHA8pVeTnvztI d+mnWwW5vbLEjni+T7bMpqt2vC1P855/SyL/MsN8Lu4VNxfDbwhq4eKLo+AFZnAt PaSdE6imPgXThtbEPlQV6KPJ3wESZXm4aBOEebgSR+RHbuT8Gr9glt1IRk7v28MB v6DTOacm6evdl29TQYylN54Cr/Uz1SYKhyOd69xZaMK+A9ojJbuYbRD+34KpHWZS 2USGG5yK+IMnNUw/CJMXb80NCrvV57w9Mka8Ysh/8JckAb2sBmvzSeGKN4KcZ/py oj6FAuAJsegUcSqcjkZBn1fW9M1sBWPOqxCAQnCSnpEc17p6HDjq1kbQfk0o0YI= =AfHw -----END PGP SIGNATURE-----