-----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-core_18.1-1_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-core_18.1-1_amd64.tar.gz 2b6a675ba42e92cce1719e2b617a7df0070133890f8737f3118d3924fa312b2a debian-12-turnkey-core_18.1-1_amd64.tar.gz $ sha512sum debian-12-turnkey-core_18.1-1_amd64.tar.gz 08beb0f0e0408bc8f27087bca434aff849936ec971a9e89794a45a96182da199488662c052feca238d8162c141f7b867216aeb2d9080cac5d52f17bb26214aff debian-12-turnkey-core_18.1-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-12-turnkey-core_18.1-1_amd64.tar.gz.hash debian-12-turnkey-core_18.1-1_amd64.tar.gz: OK $ sha512sum -c debian-12-turnkey-core_18.1-1_amd64.tar.gz.hash debian-12-turnkey-core_18.1-1_amd64.tar.gz: OK Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE0achB3UVKiMsY4ckkPLGHN5q3jcFAmandYoACgkQkPLGHN5q 3jduPw//ULR2518sx33h2BwRVaiW05qN+mwcdR1fwoDaEpcxO21w++KJBN6SGxmk zL1gB9jo7QQ46n+zdujbn6njYccp2syA9uoDhFzoWB7pQ5IyFscdGEZq29S+kroh 7ItiNB7sFb2f5WlzVrZFmIhjAnG2veIbUgmS2atyGuTBjmIAX6eIAWjlIwsuAPHm nzw0SEBsQT9fvtJm0I6Y2Br8K5nwhln5OvrO59Novm7Yf96GkyjncHMf4iNz4ZpS UyHGiMB0PoesmzgnXtBUwXS/uROmgBuqrF8huZu+qS6vkR0G7L3MJbSdJnMl2ZDa WwaLNt45khYdLX+lCiouOtBbCfpK9M8wgm9uOxj6QGy8gLoupm/bFSAJi9JNUajN okrVJkL7oeLY3FPDow109Hdo8F2Q2WcZ5Mxw5nD4WGYfNBde0UAj4agl2/OXyxTF d8jc4veOfvqn4WQKGRbc/s1ah9HbC/7OjEWrP9ZmPJ8+tSz2KH/pw+3rDrfLy5w2 gpoL7dBA5D4BqPBDXUq1SZx70dj+1XQ7wWmSVx4nYgUujvzixJZPb0UEfFbeo3Pm WtL7gsq/cE37mjDA24Bw2EQ7BQjJHO7YHzU9jDgMmNuZccHvqD5Kl1DuTQR2SVIz IWEEAdsH5l34WONJLbBEEwz0pWufesw0hk/jbhlsSRiM7TqsGHM= =+hpC -----END PGP SIGNATURE-----