-----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-limesurvey-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-limesurvey-14.2-jessie-amd64.iso 1f5fadd0105fa407d9066e6962caad356b9392c6b4a348de717e24bbda3565da turnkey-limesurvey-14.2-jessie-amd64.iso $ sha512sum turnkey-limesurvey-14.2-jessie-amd64.iso 33a313095188b1d3042e00119a9359f2df709ca0916616f89199613d909b801ae2ba4e39e3ec0b7253a85b3697b48f5e1813db4541561184294926680310a8ce turnkey-limesurvey-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-limesurvey-14.2-jessie-amd64.iso.hash turnkey-limesurvey-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-limesurvey-14.2-jessie-amd64.iso.hash turnkey-limesurvey-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZIVn5AAoJEIXCXpWhbrlN7mwH/1UEefHzxrr6P00ieg9sB8Za Wz8hFbcl2Pagukwl39Y4P7NBQYmhyMUa3a9vkHHnRz6+eZLnB0nDuJ/5QGKlS2ZU vl2MWcirvQp02Ai1x9jB155VBzMfGlzaD+ikW1m9jQ3+AzKv1m49DMRkFARYGJ6R ctY8pzE+B1ZVWK90qmPyeOKA7y+Kvbx0O3fByM3DBUyqeJ+iVI6tYoT2BB0e8FwZ rDZJ3QRhrZnX7YiGbRr1MNH/lv75kLPUUoUp2r1TbJmk/TEtshfCRHPl4Nkoy0GH 63N8T5ponUrJEn57NN17RT3arWaTVuDLgoC0HEYIk8XekZlJSvZ72u9ifM4q2to= =mPPI -----END PGP SIGNATURE-----