-----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-b2evolution-15.0-stretch-amd64-xen.tar.bz2.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-b2evolution-15.0-stretch-amd64-xen.tar.bz2 45dd16ee721129886e71f6ddbdc2582bc32b9841f13a4ba2df80423cb9bde38b turnkey-b2evolution-15.0-stretch-amd64-xen.tar.bz2 $ sha512sum turnkey-b2evolution-15.0-stretch-amd64-xen.tar.bz2 0bcbd2f9dd48fcd28f30eee25b29d6d07293e68fe841f3911b029a6d8f33e940835e41c0a680b1b4fd387c032b142e1016a3aa12beea8763f3c344da77f91c11 turnkey-b2evolution-15.0-stretch-amd64-xen.tar.bz2 Note, you can compare hashes automatically:: $ sha256sum -c turnkey-b2evolution-15.0-stretch-amd64-xen.tar.bz2.hash turnkey-b2evolution-15.0-stretch-amd64-xen.tar.bz2: OK $ sha512sum -c turnkey-b2evolution-15.0-stretch-amd64-xen.tar.bz2.hash turnkey-b2evolution-15.0-stretch-amd64-xen.tar.bz2: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlte114ACgkQhcJelaFu uU0b7Af9FOM13vkMb9CICX/uhVWhT2j8TmJ5ghgwv/lvNZLIW2hnYIfjCcUobA9W ZHLNgqxFPjsBixwokoBZGkrwSozRZMPs8vz3m6bOeBoVvsQXxn9rFZiR9MfTQ0CP EykMygsKVos0zfHb9UNpbU5b3GzcC+J1X+yRvy/UqUzQq4xP8sM3v28PQ7weFRDv nI93VoH3E9sbZTzAFNPV8f22dC+jLPRDXUPH4+P6lSl4JPPg/NmeybNlnHiRfJEJ IP1yNZbUNMSXzs7RoVQBkB/n9eq9VbL21oSTnV2Abahz0yBogR2yl24pOXhrtaJ8 UwwxUQ698dxnH+R+MF7tmeRBuFKLLg== =OyTM -----END PGP SIGNATURE-----