-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 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://keybase.io/turnkeylinux/pgp_keys.asc | gpg --import $ gpg --list-keys --with-fingerprint release@turnkeylinux.com pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] Key fingerprint = 694C FF26 795A 29BA E07B 4EB5 85C2 5E95 A16E B94D uid Turnkey Linux Release Key $ gpg --verify debian-9-turnkey-drupal8_15.5-1_amd64.tar.gz.hash gpg: Signature made using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key " For extra credit you can validate the key's authenticity at: https://keybase.io/turnkeylinux 2. Recalculate the image hash and make sure it matches your choice of hash below. $ sha256sum debian-9-turnkey-drupal8_15.5-1_amd64.tar.gz 99d131e420d647ce41631e4e78ca8eb4dab6a3413c9a548dfaa0171ed36adb0c debian-9-turnkey-drupal8_15.5-1_amd64.tar.gz $ sha512sum debian-9-turnkey-drupal8_15.5-1_amd64.tar.gz 72471ab78f7e481d24cd8dba873e33ee90bff69a068766491d30f553e85c59f4f8e2431ef6d4133e8b94267a0d97b39428b25394fabd5d1558d169e8d316622b debian-9-turnkey-drupal8_15.5-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-drupal8_15.5-1_amd64.tar.gz.hash debian-9-turnkey-drupal8_15.5-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-drupal8_15.5-1_amd64.tar.gz.hash debian-9-turnkey-drupal8_15.5-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlyZ3PYACgkQhcJelaFu uU05SwgAnsL+JmaT7tbjuYF0Vw1EBLEPgu1f77xAXL7mo/uoB8VbnzeBmskukyQi uvE4zMfVCoijlSEKta5+TZRc/SShg8z7uEWUzJTiVAoOnWG6BxiqiaGM2dc1TCjD pAI4/Q8jjqAxr4eBg2Kci0hYj9IRReGKl6Obi7Saz4E6/VfwfUa/5MyS8IqjZ8HX Q9qo/K7JrpIe3fwTA4bIv25l9sRr989Ixa/+Crnr4jpQ4LHkQyUmJeYFveuF0am9 Oml7c/p9xs5Es9O6I+3rpO3kcSpd/9oQzM3sfkvdEc99UjVDIJ+clvHyNETQXx9w sfV2i0xZVLXiYxMX9MC52H/ZxwsPfA== =/T6e -----END PGP SIGNATURE-----