-----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-phreebooks_14.0-1_amd64.tar.gz.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-phreebooks_14.0-1_amd64.tar.gz b03c1e743b91fde9ee119ffc61e65265 $ sha1sum debian-8-turnkey-phreebooks_14.0-1_amd64.tar.gz 62c929cea101c656addf35ae46902085df60d95d -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxVAAoJEIXCXpWhbrlNDcsH/2n4yRBol7xXwsxNKKSGWlHQ wMGuDE5TLKsZhH6rtaVr/9ZlJ7GR2+IACVQjHVWND1RkTrAQ5ijdijHvypxpX2WS 7OZio8/d4LelYK2Jtb89Q6yOIbn8OSwGYyUdCkRFUHrDqhKSdWsAqLQyn+zqU5XY ACoEcJOkurDOUiJhdlgXAm/xKPJ4DmLSTOTbHlAQsAJ0sPnChnzboOL1U6GixZuZ ztl9eFAro1vvi9DHrJJGXh6vAAbrdWrRJGw3DQg+3UggjeG2vTQp6bsi4G6Gt03s frNqU+3uSNREkdWxHsZU8IWpYxpu/q6aZknyxgJhHh+du2okzlIOPmjBBb2LlE8= =0nqX -----END PGP SIGNATURE-----