-----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 debian-12-turnkey-tracks_18.0-1_amd64.tar.gz.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 debian-12-turnkey-tracks_18.0-1_amd64.tar.gz ed40eb0c8d04e083d128a2e80d4c5b1b82f3a2385b62cc5e17e66c7ffee9e75f debian-12-turnkey-tracks_18.0-1_amd64.tar.gz $ sha512sum debian-12-turnkey-tracks_18.0-1_amd64.tar.gz 13862538a034ce406e22450553aa7874de2e307461fd4e5805db2e35dd32c5663b125887a6be1089ba0a7d4724f320301b98e68d6b6f6c2dd18aeb8a123beaae debian-12-turnkey-tracks_18.0-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-12-turnkey-tracks_18.0-1_amd64.tar.gz.hash debian-12-turnkey-tracks_18.0-1_amd64.tar.gz: OK $ sha512sum -c debian-12-turnkey-tracks_18.0-1_amd64.tar.gz.hash debian-12-turnkey-tracks_18.0-1_amd64.tar.gz: OK Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE0achB3UVKiMsY4ckkPLGHN5q3jcFAmZO8VEACgkQkPLGHN5q 3jd66BAAlNyl3vaDpRpoHiEQ03MGusxgr733PTrXgTeDM0t6gkS9LP+tMq3ckyFY QhYNO8a7teDpe+3yecv68VkdOwHeb45sNX23IcdTUDdiAbNZnr/M/RM6HVIHJ8EK zwxGXigyg5qqL5tbUfFjOex/R58dMvNTZA2KbHNbWSIJTEpu9a1A5kKH14tGF+ZN C9A486wFOVN3dofn9qzUu1NaoLn2SpK2nqk5ajMvL3q8s+K+pfKoStF4Aj1BZV2Z Jg6ZuB9suXl7ox9+XhtvRmlRqA6X7R2ty8j0dQWxSJxpv51fmaOvpu40wMFCf0xF Qx/FdYFOXCqIfIrCP2GZjYFfQ8mrSFzEyhus05G3Bo6N4M2jSV0326b/HRuPcdOf 6cfWbbxLfOjH0YWpAnCDsOTlWEnQNBHa9p7i1nNUE+9nKfGcS4tg6BNiqDYgQUI+ XLhiJ7Y8A56tllsRd8AOB4IS1AYBDWfaY+BDVgoTVk9lRVwTj+MNot34ZUcxRmAT PAQDzELSZ5VqgnsVV0m4uPPgkRUtj3XW0+N+NgvLgRaHnjeeHHNk8WMHNyb0iaaW VznfZ0XPO5JnmaHpcy8CuUkSnxP52Co5DKtaJ1UXgYY+C527woNGwJLkzeA3SaO7 E55W4NFhCRB3EB6i0xPTUBvogeqISVE8yqodVTFpI9JCMIam0SM= =6lQ2 -----END PGP SIGNATURE-----