-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 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://raw.githubusercontent.com/turnkeylinux/common/18.x/keys/tkl-bookworm-images.asc | gpg --import $ gpg --list-keys --with-fingerprint release-bookworm-images@turnkeylinux.org pub rsa4096 2023-05-22 [SC] [expires: 2043-05-17] 2614 7592 087C 0EDE 4214 3B63 7761 DEBA BBCF BA7C uid [ unknown] TurnKey GNU/Linux Bookworm Images (GPG signing key for TurnKey Linux Bookworm Images) sub rsa4096 2023-05-22 [S] [expires: 2043-05-17] $ gpg --verify turnkey-drupal10-18.1-bookworm-amd64.iso.hash gpg: Signature made using RSA key ID 26147592087C0EDE42143B637761DEBABBCFBA7C gpg: Good signature from "0" 2. Recalculate the image hash and make sure it matches your choice of hash below. $ sha256sum turnkey-drupal10-18.1-bookworm-amd64.iso ff27aa7bb16c07f984512ebc70fba9f8e8b21e1f1fc3ae7844d9fc368e03ab95 turnkey-drupal10-18.1-bookworm-amd64.iso $ sha512sum turnkey-drupal10-18.1-bookworm-amd64.iso 4d42c18d8775baadca37319be50a5b8469328adfc705180d109cc281d7353560a75bcd5d072d0277759d162881480c36279ea45a359a165d78df094d19a66af3 turnkey-drupal10-18.1-bookworm-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-drupal10-18.1-bookworm-amd64.iso.hash turnkey-drupal10-18.1-bookworm-amd64.iso: OK $ sha512sum -c turnkey-drupal10-18.1-bookworm-amd64.iso.hash turnkey-drupal10-18.1-bookworm-amd64.iso: OK Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE0achB3UVKiMsY4ckkPLGHN5q3jcFAmandZAACgkQkPLGHN5q 3jeqgA/+OPtfaX7zEVBfMam7jS8+1gXlhfPKQHObN4MdmEFpmuj4+P252GV9mJ3c 9uBZ523Ju/JmwnWSV6eVPQIVANo1BeFpd4HHWdk2QNPlPzw5BSJEieN2sva5vGkj /Z91/N5HH5br0b9dJP4axRjU4nrtl/16tlkDrQA+z++8u6TcyGnji++Neyvs5XGO RrOFYGhcNNeKHf0kV5PgjOZ+z9quu9XzaiCY65jQlaWCdTvJtpzFJyxi+nQC17ud Ls7FJ3hZ57gLJBazWocbDCKVgZ3fF66Tb+8sFeFRrEuZBBD5v91iKbauvsJ0fKX1 XgoDIGgIa9Bu0d9M/vgeJ9ltygihAKlDSlfjQ5xl1o3GV4ya+4ywV3bJsHApnT8P K9hbY2s6jG97n4wXJgo9tvHXb4wOc/K2TfyCxi+KKx+/jbyq/dK8J7HwQ2QM5Exh wieyFS6L4+DifXyjbM+24jB9JtbZ44NZTyQOiB2esrO0O43gxlQDmYjX9fYacuNR +lZqBK0yBsK0/jLrlF5mLU9uBRCpgWjJEhqhg7O8wuVBLM/EDW0vFSAAvKkjbL8q gS22/+VdavSbVTpvpwZMqbRhNuVc5Ub3HlBU1Zmcy/EN8QktY98klxbmblHvU6do NxuV4tiLZfzB9uv4CylhmeR7zAqwHRkLY9d2S3xLAAMtwkvzLVo= =bJ03 -----END PGP SIGNATURE-----