-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Two steps are required to cryptographically verify image integrity. 1. By verifying the integrity of this signature file, you can be sure that the checksums included in this file are valid. $ gpg --keyserver hkp://pool.sks-keyservers.net --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-e107-14.0-jessie-amd64.ova.sig gpg: Good signature from "Turnkey Linux Release Key" 2. By calculating the image checksum and validating the hashed value is the same as listed below, you can be sure the image was not corrupted in transit or tampered with. $ md5sum turnkey-e107-14.0-jessie-amd64.ova 6f0d1412a86afd208f7ec87df2bcaba8 $ sha1sum turnkey-e107-14.0-jessie-amd64.ova 9c54a1fe9207953ddbc71223b51748b86f5c7924 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdVAAoJEIXCXpWhbrlNjIoIAMzxDM9hFZVe23vBf411b0bb TkPeNASzGbQQIs+Me62J4j6Sr7Lyz8oV1HAtUbgP/Ww2QyEkPdAoxcp4YfwAXMqs L1k+mZWoeQl0KhOaNflV+ZzJBY3W2tg4ItxnQagpzQtaCXSEULexrl9qXJ1wnCcE 0qVBY3E+H+qjTvusgPHshF22I3o7Wgxpign4qKlQ8zNB8y70Ce8MEuhMglg0CXsO VMHtn73lznOGeLL6O+ZJpnhZnYYsJmwHxLHod9TJECvlU903fVyPfOD3Agtavwv5 c8ysTVeu5X9O2fXWpuUEzvG5EoNRze+Wy+4I8RHrqpX2XbZnyATuztFYfxlfc74= =98P9 -----END PGP SIGNATURE-----