-----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-suitecrm-14.1-jessie-amd64-xen.tar.bz2.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-suitecrm-14.1-jessie-amd64-xen.tar.bz2 02fc19d0246a70645eacd3b48a66f35d $ sha1sum turnkey-suitecrm-14.1-jessie-amd64-xen.tar.bz2 2c5d7e295a1729019bece32ea9c5452f465ae9ec -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn6AAoJEIXCXpWhbrlNMKkIAJDjosmLLWo1DTpvRbR8txJD Mld+l9BTivFq/n1Pvvj6j4usb4qV4Pz0YCgbnCERe/XB4/3JBRoPjd/hzKyP58o2 L88xgPBcY32exbjYXCX+qYmT5bCGbPW8O9iA4zn8oR6qbX8kO0+8B9qSbY7x8hAH E/jkz2EHTXqOz43lNnbWyza6DnNmWDJd2jyogmQFnOEGI6puUUgKe6R+s0O117Bf 66A+et08mQsAwjDjkW6t/B4RRzLDO9C0/LnDdHhIDBWp6iAYXv0IyvLHuxfcvxg2 DFNLf1cnZIyjKsY+eV7vTxn3RSyXSJi8aA3TmsWfGOvvpIM9PcaD96dizPlmMk8= =BiHf -----END PGP SIGNATURE-----