-----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-mibew-14.1-jessie-amd64-vmdk.zip.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-mibew-14.1-jessie-amd64-vmdk.zip a7c96b2c0a7fb603efb63075b952be49 $ sha1sum turnkey-mibew-14.1-jessie-amd64-vmdk.zip b5fe03b95aefadbe758c85a8068f48a95f2701b5 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn1AAoJEIXCXpWhbrlNz7gIAKFzb03104Qi0u7+v4EWkEOu jE39uXgHynLI6QDQy8RC5YziMwPD1fr2NCZk12+LJoX7kpKNwuTTBXNUs1DVX2Ni O+cZwqoEPAw2KfFtdqXc4vvGDICfsuHNhmvP7ov/cAKo5t6F4Tkg5EXg0RnV1AUv rVzRewO8P+kjiWqLEsijnxCnp7BqxhJu8fF7wh718QW2OpmFIKe1dAlV3fxGIdMF jkw+UkF2GABnoV1MBX111wXf4Wnark8aw4TXJU8uTRkG4dNeChpJilNcDvQsB4Q2 ZChL8WcLwdUhTnyH9Q8cEOTfC+2fCpxWPOkZ5Z11CYoVw2YbMF7QXWnqQOc/hUc= =7CJ9 -----END PGP SIGNATURE-----