-----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-openvpn-15.1-stretch-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-openvpn-15.1-stretch-amd64.iso 3dd0d88576414e406f05ba586c637217ea1a86c0553087f3239f63b6aa5dd60f turnkey-openvpn-15.1-stretch-amd64.iso $ sha512sum turnkey-openvpn-15.1-stretch-amd64.iso 1b5a81454ffb97d5b56ac4bfe2a7a6338c2167c080f3967ca66f0443110538fb55d2edae6118cc3a449a7cfa984116feca1ae398f7eb2942578dc8bd4713ad0d turnkey-openvpn-15.1-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-openvpn-15.1-stretch-amd64.iso.hash turnkey-openvpn-15.1-stretch-amd64.iso: OK $ sha512sum -c turnkey-openvpn-15.1-stretch-amd64.iso.hash turnkey-openvpn-15.1-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlxhNwAACgkQhcJelaFu uU1YKAf/SAiLcOOG5nTXlS7+zLw/ewdUy1qK/aXINB6QEYrnd7xvSS8CrP6udOp6 y1GEsbDoNQLilEM2NwFtXfSz3/tb2YXI+jzTP5dgdDXa0yMlgoFxPtntAtJ95jhm Pds6h6N1nI6RI6deuhTKYRpcZJuqHwUvPzCR9oqQHE5aEmw4+7553Mo7r/4GXCWv veVSPPaWy94vigUi9ERQ1TA1HL/NC5/CDLoZtydojkKxz86GenU7HLZBnOr4UzCn ctarQP19MMS/NXdPKTeC6pbw3q+hKna8BpBJFm6NMuxbqndpruxAD8cenLxZHypm IAGPOK9C06KVwXW5UJ23TFgOMuu92Q== =+wsy -----END PGP SIGNATURE-----