-----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-tkldev_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-tkldev_18.1-1_amd64.tar.gz 77a08c05b10f119e0f250ab25fe59bd9018d57ece364ca6ba0668741e54ef1c4 debian-12-turnkey-tkldev_18.1-1_amd64.tar.gz $ sha512sum debian-12-turnkey-tkldev_18.1-1_amd64.tar.gz d93f3266a6fdfd07eafaaa9d98b73d8ab05e7c567d86bc5da8e43d81da5b101525dba3d0c5c30a9e071fc6fa1fa67d0f4f36adfb25a098d38785c685fae80254 debian-12-turnkey-tkldev_18.1-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-12-turnkey-tkldev_18.1-1_amd64.tar.gz.hash debian-12-turnkey-tkldev_18.1-1_amd64.tar.gz: OK $ sha512sum -c debian-12-turnkey-tkldev_18.1-1_amd64.tar.gz.hash debian-12-turnkey-tkldev_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----- iQIzBAEBCgAdFiEE0achB3UVKiMsY4ckkPLGHN5q3jcFAmandZAACgkQkPLGHN5q 3jffBg/9ERQi4kUBh3R942FXe+KfeNTmtAIRdIMSgZMmBGubwwY1hpXdfGWRw0Gk tvwFOWb/AUybJe1qZGU1BjpJTynGEVwo3m+U/VAKxL+0Sox4z7yivguLd2LFEWLc 8xOGLvYImxY+iKWV7+w0HI1Lp9glU581jNae1oDtMyC6Xs9XZXf22USJD5ZXG3T6 dG+pSa5z0WW9QK1DFMCo4nK/J11HfpbUzvnP8+sGQ/aPor9YbxEOng2IDbkysbcT /fk1TfCh/DCzmvEmXd6P8Wog8JW04dEHeflGUdCaIMj1FZ6K97Ei7dKngQzmsZ23 b/SHts4qXsLQyFqiqF+UPJGh3g8FtdvF229UiQi8t9qn3TRRLYYhzQa5u4KHbPTJ pq1PBLuMIZnAO0l4G8DQOschvzpZlmQEt/hpBiugQXW2bORQ5z5cqyC9RcLlwqBr g3OIUTEH5W1PLL36b6WADoUZ7CrL6Q+JUEiftyYCByw8rSBb03QWtd4n3nQqYUJ4 ErfnWjpZW+qZSbq3ZrPRi2AxbT4z1d1hKXPTB8D2zhcLVZOMZRDnG0lmUkJ19j/V PejHvr8L77vkUA762au7M8JqrL37bRwIlrO2OuQT2tl0eNfK289oykWeUF0k5tcE TFOTT433hgFGyTir/VXXmHjqieQCLmbHMVtvY/X4sYd7r8PmDWw= =AaG5 -----END PGP SIGNATURE-----