-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 To ensure the image has not been corrupted in transmit or tampered with, perform the following two steps to cryptographically verify image integrity: 1. Verify the authenticity of this file by checking that it is signed with our GPG release key: $ curl https://keybase.io/turnkeylinux/pgp_keys.asc | gpg --import $ gpg --list-keys --with-fingerprint release@turnkeylinux.com pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] Key fingerprint = 694C FF26 795A 29BA E07B 4EB5 85C2 5E95 A16E B94D uid Turnkey Linux Release Key $ gpg --verify turnkey-suitecrm-14.2-jessie-amd64.iso.hash gpg: Signature made using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key " For extra credit you can validate the key's authenticity at: https://keybase.io/turnkeylinux 2. Recalculate the image hash and make sure it matches your choice of hash below. $ sha256sum turnkey-suitecrm-14.2-jessie-amd64.iso e81050908670d702ef82c80ec6789c4bde7f171380bc9da30124cca37f4166ef turnkey-suitecrm-14.2-jessie-amd64.iso $ sha512sum turnkey-suitecrm-14.2-jessie-amd64.iso 4e7231cf62de58c615892b5ef84b922d5530490dae5e87c32b5766016ae76e776201a72b50da7cfc7bb59792ac3a2a198da59f7599716902712e86ad9557c2aa turnkey-suitecrm-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-suitecrm-14.2-jessie-amd64.iso.hash turnkey-suitecrm-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-suitecrm-14.2-jessie-amd64.iso.hash turnkey-suitecrm-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZIVn5AAoJEIXCXpWhbrlNONgH/19xtQ+KGF5Ad8GsVhaTMCHT IHC1yQeTQen+od0HqagPlwZBvTEf3WStWCWoJluv1peiwRGjLRIAHNUqLLZ7+aDh Slkr1HIniZe9o027ZmoPJCttSsbvIpWzoqX072zM8sQ4ZNP8mtJUlgN19e7mLc4k eZ5S6YbNaIrnGn2HG7QPmkA+NEXeK3v7uVBHKMxt5AM2bFuPXZ7QhNsKfqCPjtXl xmwHlD9w8nif8Y+oZzvjV/kxEYFyiWw7Eu5zWiQ3OvIBVi9yB9aiv6PHHtmEUYNx c+wYgthe6GaipYB+S5ZMuRGRTOurkOSwGhP3Nkc4nPRiMawGGPfaqlXTnvtnx3U= =vMGm -----END PGP SIGNATURE-----