-----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-drupal7-14.2-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-drupal7-14.2-jessie-amd64.iso 224cf8463d8e67e81eb0b6f3773033acdac670011fd7371dc6425ede891c10bc turnkey-drupal7-14.2-jessie-amd64.iso $ sha512sum turnkey-drupal7-14.2-jessie-amd64.iso a54a94f9ffa8f7da0f949fdc6d80262d3fab6ec02d1f55e1bb59a6a6ac5b4ebade7cdedd74319ee0a351132bf3727ee5ac43cf57ef3e11d26ea7ef53720587c1 turnkey-drupal7-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-drupal7-14.2-jessie-amd64.iso.hash turnkey-drupal7-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-drupal7-14.2-jessie-amd64.iso.hash turnkey-drupal7-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZAJDpAAoJEIXCXpWhbrlN0nMIAMYkPf8EHp++t2r7fXSDyxYV BYNHhfu6OOciqlOS1+TbRNas+VTebJnMB2nmQzgdnuGZ070aPbP6C6WcC+DvFZid J/5dCv7QCfgGkEOWHL4Jh6pirwAQseX1IVV1KvkOX8k4/dwV6Qvz3Tq++Vr+mlv0 B6pKmnVbHsjvG6nwWilcFARIMf2LNDw8s+4MZ2YqUQ9gamIXV2gBAKpWYTTqxr2v jmFGj3MG0T0qBDD36e3KVM/z6ON16SMQKZBeF8cPGjMknvoBqnQtDyqm9Rx3q9Rq y+dj2o5uk9w7t7ILe040oJsCGvYRF7fI/JtPs55lHqKfCIXorLOK/DtzsaMK0fk= =N1rK -----END PGP SIGNATURE-----