-----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-mediaserver-18.0-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-mediaserver-18.0-bookworm-amd64.iso a8cdda1886f51d50b2b372ade3170898bcc8b021c9f9709e963a5dde6cf47c90 turnkey-mediaserver-18.0-bookworm-amd64.iso $ sha512sum turnkey-mediaserver-18.0-bookworm-amd64.iso 081df74b19e1129629f9276d7842bb79a607a154140120db11efc8e8de2f63ad9bfc194eaf9369ed46178c66b3bf0306898d21817ee16e73a2b29396d4b5cb43 turnkey-mediaserver-18.0-bookworm-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-mediaserver-18.0-bookworm-amd64.iso.hash turnkey-mediaserver-18.0-bookworm-amd64.iso: OK $ sha512sum -c turnkey-mediaserver-18.0-bookworm-amd64.iso.hash turnkey-mediaserver-18.0-bookworm-amd64.iso: OK Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE0achB3UVKiMsY4ckkPLGHN5q3jcFAmZwA/QACgkQkPLGHN5q 3jdHIQ/9FFjZAN73It2txZJ/NUvO1cWvQisu+oilCZ3iYyMnQNkECp3el8j2BWX6 sRy1GEphMOil8Jj26pZ0az7ISbFP2YEdeBKQaXIeFLuRyLpJ8nT5Qi9gzUUxRfx9 WlHUDXbyXqZC1WZYovWnPgSfA251kkwV/GX4JUn4vsQ9xWb9EgLdA+UOSgbmwLon r0+TN0Bo/qgatq6XomEm2Th5ZP7QOXdEMDaaLW3LO4oPaXlpn2EYMwx6L4f00R5j wlbTS1e3P6pW/5wBCN2RIeGJb1aRTDeE/fK4zpenzJCbLNUOyfDNy2ZuOs5lA7yz oNSa1s7hICH/Zzs4IglLhNgrrumO0wno9+sf6cOE+U2CFVIcE+8mwBm/Cd/60E78 4PeuQUI0+oqGai7QQ+A4BbPOTgRdS7RqrDDW6PhLl38wmq50Kxld9GOoJ/aLFI3l 4JR1crvVo+2mz8PtIGkAtuAduWQp65tZgIe7kJ5hcar8gkktR6Dqe2zWpyWhvSMN +sztt9t+Ne5siAycb/4qmm7w/cru8kp7Q0Hs1IZsRt5QcMYXWBEJSvGivIry6g2x 2ZZ4Mb2WUM3k9t96EhS5mJpjImmzPc60fOtILPz0jbgV7+t5HHHuv7sx3BsB1cfv gf7krQPUQYtfeCvEO6JuWjQq0X5NU84LnI78SPhkcDvI6kwLS8I= =SvIe -----END PGP SIGNATURE-----