-----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-twiki-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-twiki-14.2-jessie-amd64.iso 3161f9e6392499fa62548da91112e2400dfea67588e29a4c47a672903a937222 turnkey-twiki-14.2-jessie-amd64.iso $ sha512sum turnkey-twiki-14.2-jessie-amd64.iso 8c3b997de22c8f51a2ebc139f588d6f35d0aadb8d49e22e1ee2547123c6b23cb67a7518e09a35a4d8b5208d71b79d0a739b5b14d4c3c8730b6c00130da79b030 turnkey-twiki-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-twiki-14.2-jessie-amd64.iso.hash turnkey-twiki-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-twiki-14.2-jessie-amd64.iso.hash turnkey-twiki-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZeIKmAAoJEIXCXpWhbrlN7ToH/j03Fx8SuWNSDWTO7jAR3Du/ n6HM5gSJXPovF7wHn/DnQwmOMhMnmiX2Ca8cTEIeEaBe4fB8g2zfKRvuWi8EgArU qpL9Ft5d6mmleFdQ2ujThWoO23eUysbYxCvCxvFgKuJViEZ2shju1i3RBHetneqi VHmaCH4Xzk+vkxaujrSTa0XvSRBeoM8RRIbz4HQs7V55SumZtaJkC27DOcMuyJPo FYyzNit+X/kypMiC3tNaSxbTaYNsylh0BP2IQDIcxR7fTsj/ldP+02xsw2vhlzUE QSW9jQJo/LMQUGiOMUDeRyV8KfJf+u42HtI4hWtiImYWuJhgJzRPwWN5REoDw+g= =KRXf -----END PGP SIGNATURE-----