-----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-avideo-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-avideo-18.1-bookworm-amd64.iso 9c6d12a56bc65854f5707e828dac86afb4998dc480c4862535b02e45de9799af turnkey-avideo-18.1-bookworm-amd64.iso $ sha512sum turnkey-avideo-18.1-bookworm-amd64.iso 1a94cff6a8d99c8410eeb0dc9b33f95e2717d4ddd43fa5001e60c3a0a769dcb4ea9c0499712e8c3ee4ad755af3826595622efa89a244c99fabdd59829e8d6f3a turnkey-avideo-18.1-bookworm-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-avideo-18.1-bookworm-amd64.iso.hash turnkey-avideo-18.1-bookworm-amd64.iso: OK $ sha512sum -c turnkey-avideo-18.1-bookworm-amd64.iso.hash turnkey-avideo-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----- iQIzBAEBCgAdFiEE0achB3UVKiMsY4ckkPLGHN5q3jcFAmX2s+EACgkQkPLGHN5q 3je7AA/8C1U/ThKksxrhwyR57HfSB1X1M0RMOTy7vK6cs79pqXd/k8h6Q/KoELA1 8IWIMCo7zvJFkIZEpnJpLuThvU99JJLF/Ubymf4lCAcVt3MrcQfKFKyqm8ICIOVO vPAj36TUd1uwWlu2WNRDCku9nc1Mndiz3Y9Ggd1qI90Z71Igpiq/x2eMddeo4rJL 7xglGkYgWsjv7m2tuspOn88VqVQhGEg/DH1lhB5L3JU5CmB5onxmFXLR/efEFnh5 kzXeSTsuox9/SwotEDQPeDehfL5+nhkj6SXOHOq06sh71BAAL5Mo78J++evRYzPg Ec72/XLSGXIpSdyuehF9Ne/oYmIShMKB0IbLPe9QFPJX1cE0L25bdn3IDUzEXn0b 3cq3JcaknZoC3XAHw6yIAHWoRDJJenqpA6waCGF/BLZEtUqIiulPyJ4AWpbnwPg7 4HgLEhIrWfIb8EGuSB9Lb1g5pO75wPgnS9prvPBGrdUf8vAd8JsSyDrmRKc4Hqcr G48I1AJv9gH4oqtOs3x52TaK9PWf2cPpqanTdYV6Vq0fx3Oxsa/Nfa+ldakQI032 YF9j8tOSOaCfhNLQlz/GDqsfgbW+VcVuQgwQ7atqJG80hArrCrtnIzG82AmMjp81 ic1eyEIeFCER3Zuvk7KhHj2daOzudsl1faXdlclLFkKgpNBVJc0= =5BB0 -----END PGP SIGNATURE-----