-----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 debian-8-turnkey-punbb_14.0-1_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 debian-8-turnkey-punbb_14.0-1_amd64.ova 5a44e38760e1a5f3bcf63546dced1fc6 $ sha1sum debian-8-turnkey-punbb_14.0-1_amd64.ova 2ed080d053498de3d4d2dc42b857d3ef890001bb -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxVAAoJEIXCXpWhbrlNMYwIAN7DWbsWJ5M7T0RjKmDD+Wk9 jVtyITBi4KSBmLoWj2FJ8dQfrN4xHNw6oLKWWNHs4cmosRurNVJerE+5zz7//0Ef qvh6axsl8JiiutX0SjNMRU8Uid0T7mLfHpF3fpwV9a9Se18sMwkSK4/1dwjGO6Hq AXDXLiHcAwCy3L1Y03kFZdvq6283JqyOq4hXCmucfSUn4t7KHZSMg93dzJrIr6GH i7VtUGy8NpS7bk3beqJmfKM/XEZgOcpv6fsvwEq3wwt6iu9FZdfIw7N3ZIgnjpX2 /yUHCzlQPV9o58WoQB5d30HQLbfxlKHMwSf4FdJ356l70ghqHW8j/0/GKNkPo40= =E7Kc -----END PGP SIGNATURE-----