-----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-vtiger-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-vtiger-14.2-jessie-amd64.iso 609546dfc286bff8c6817d9ffc329756c2739cd1bb84acdedfaba3ed7a115f59 turnkey-vtiger-14.2-jessie-amd64.iso $ sha512sum turnkey-vtiger-14.2-jessie-amd64.iso d9a55bc8501d1bbb08b368cc3275d2cecff3e7d3e2dbd62aff19ae6d671f4980e454d3b696cba989f43cbe0726f21ea085e810047966ce2a18b811c35a924b38 turnkey-vtiger-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-vtiger-14.2-jessie-amd64.iso.hash turnkey-vtiger-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-vtiger-14.2-jessie-amd64.iso.hash turnkey-vtiger-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZIVn5AAoJEIXCXpWhbrlN3nQH/RYqPq3V6jWbaGs+GzxI4F85 BH7a9e7dukdP7C7qXVERVOHq+7wFu/nK65HddQdQdBNo3Z50IxansyCuPaePA5u1 VlkL5boedayqENkmoxPpmU7rN93pB1r5kdSk5JPdhbkRbIkx3yvdz8Zx1YRUZOXp lLoMB2txgqNgaCwQGjRNzufN7gQUKxFV6/VqyLjttHHzmL/jxDZhTDJCCF12suEf TwjwdhdS2gPKGbiJOculApY2uNInUQOdH74JTWvjjJxjKW5PIhg/3mzoc5dq+6uj KofclDJyEHugc44QQ4wXlD+qJuyKsBT0jxfY3/f7OUZtoIjX6t5b/toFeikjssA= =d42/ -----END PGP SIGNATURE-----