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-clipbucket-13.0-wheezy-i386-vmdk.zip.sig gpg: Signature made Tue Oct 15 14:53:22 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 67ce5823675b0fee0f5d154c90ba5ab66ac74119 * md5sum 9bb8a995afe2f193fe6e38691a2aed92 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) iQEcBAABAgAGBQJSXVbWAAoJEIXCXpWhbrlNPT8IALus2+bU30nRUM+2xj4T5ZhD 3BcP1DdazMtKG8C3HA0nxNfjozt2IEaftvrUIVO9DQADEgOxGw9fWKXNxlmLnvUW ZadBROEQTMoKEsVfYmL9Uj8bZlpGFYtr21eDie0ldVyH0tn3siP2o7RFk4nM8df8 IKNBM4fpp/h4RQGDPCYuZZnBoxHBc799ZOG+sr5gtmUnd3PTVLswDCHRyy1IBAuQ gxLbwY55o4eAzONajIfLkov1KBs/bY5fkZT11D5umw9OEZv4QAexRDHIAS32Xq90 hcj5GpTsWAMyE7zaprXs+2S12J4JVyDHpYEG6VBS0o9jBwXrygtPC8zViRgRXb4= =Mfmr -----END PGP SIGNATURE-----