-----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-e107-18.0-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-e107-18.0-bookworm-amd64.iso 2ef5333cfe3a7730ec36792d13b1194ccdb27d0381969c568fca3466f8250c53 turnkey-e107-18.0-bookworm-amd64.iso $ sha512sum turnkey-e107-18.0-bookworm-amd64.iso 2dd54d76f7524bbec867b8c15529c07c24f380a7974d2d430b0cb61314bf987a1015328969437949257f7f4628af4c7223d45ff9b0adb7ce5805aae0fa9cb85b turnkey-e107-18.0-bookworm-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-e107-18.0-bookworm-amd64.iso.hash turnkey-e107-18.0-bookworm-amd64.iso: OK $ sha512sum -c turnkey-e107-18.0-bookworm-amd64.iso.hash turnkey-e107-18.0-bookworm-amd64.iso: OK Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE0achB3UVKiMsY4ckkPLGHN5q3jcFAmWjpvMACgkQkPLGHN5q 3jeAeA//ZIq8BsliNM5+neEG7bG8KtzUHTXd81fCsUYV2a6I2tTOQNcroTQ0NlQi f7octH9NXG1G28pBApBIF6BEpMOPXu05mYTbaZviYrp72Imt+LOjeoppMXVx3iJf PMi+sZGDligPCzMzLj9PyGQVdF79R0fwjlspzRX49Zh1lA7Nb+xFKDcc3by3xIKD pnlmxxdtwH3pl9hD8DTnbxyGA9FqEsMv+IyTk/jhvtB0rTgukibCNDlJ+Q5v/gIa vqZEMUqvP6/xcZt2BKvssJI4c/rrG1lzXiWZq53lp+DWCTvtGrIbjB5BL81NrUAd 6VRUr2ILD0H4TxS5ZLWbVaJ5XNzmPET/hSMngirNoet2VDsf8lmprq+1Eu2vdZGo qkLDAzVlNaaxmwAv1LjtSJtzfpKrmCg921Z1BIIqLkx5sywulah2gVMuwF+LZdSz B9COhoupWo+8mVHfuMklGZWy5HMKACIZSNjcFqFg6RMQdsxKzTHuRTFcxLviF5ph wT7/wl9lIac5ReoTyq2xa0S4EdXqswD+kWbFCsD2Qh9JHUtjvcB3UWtzz8aqsKnk OF46ygBAA0j2FVKvXLRpKSCmcDrGpnRK+aLvdWHL7XYI11vs1FSlZBkY39HgT1Vu YGm40gAYcqGko9finhHrjHPPkc6ByqxXx5W6Pei32dpitN0N6qM= =4cfG -----END PGP SIGNATURE-----