-----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-twiki_14.1-1_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-twiki_14.1-1_amd64.ova be3b8e60f7db41e0fe56756783ed1fe8 $ sha1sum debian-8-turnkey-twiki_14.1-1_amd64.ova 12674826f610b4c8cb3779767241eb34b2487cd1 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnvAAoJEIXCXpWhbrlNZX4IAJ10KYSOQwfij0kunmFdNJ6K 076g84d2Trn7hZTOzzaFEpF+FXKLY4Kd2zLcyxFBMMeDR5lZ632zKmTZNWTmHjdm BtmhbQQ6OC/V+91mD1SAal2le86thAZtNnX+RC/C7nl+UfgrGeyuwGSZCTASaxvO GSdh8z+7+C8dr3zTJGTIVb9t5tQi46lV9J6P6aK/yYXTYxgconm+0XAKodyrpwXD yDcYmEQVoTUc2sN0x/WhPa3gwtYuxAlHQBCvIu9xOo8Yj2NqOZvfnoZcpdNo+dq8 a5l1bvZ1PJ0kTToAinjIVpST896bC1mVjuFdNsTlWOuzBtUC6qBbr1U0JN2CJi4= =qgwC -----END PGP SIGNATURE-----