-----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/master/keys/tkl-buster-images.asc | gpg --import $ gpg --list-keys --with-fingerprint release-buster-images@turnkeylinux.org pub rsa4096 2020-02-05 [SC] [expires: 2040-01-31] A8B2 EF42 8781 9B03 D351 6CCA 7623 1C20 425E 9772 uid [ unknown] TurnKey GNU/Linux Buster Images (GPG signing key for TurnKey Linux Buster Images) sub rsa4096 2020-02-05 [S] [expires: 2040-01-31] $ gpg --verify turnkey-drupal8-16.0-buster-amd64.iso.hash gpg: Signature made using RSA key ID A8B2EF4287819B03D3516CCA76231C20425E9772 gpg: Good signature from "0" 2. Recalculate the image hash and make sure it matches your choice of hash below. $ sha256sum turnkey-drupal8-16.0-buster-amd64.iso 8beb6f68fb08ed0f7fdb6f6c887282377cd50ae4eae44a5845516c33680dc23d turnkey-drupal8-16.0-buster-amd64.iso $ sha512sum turnkey-drupal8-16.0-buster-amd64.iso 9cad1d524769a6fb202cb5e33e24398dae92f8f1ba0f93b9854f0c3bb5d7fcc567c8aae4aa645f35190488f310f57bda05add8966c5c7e63d276686092e3304a turnkey-drupal8-16.0-buster-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-drupal8-16.0-buster-amd64.iso.hash turnkey-drupal8-16.0-buster-amd64.iso: OK $ sha512sum -c turnkey-drupal8-16.0-buster-amd64.iso.hash turnkey-drupal8-16.0-buster-amd64.iso: OK Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE8ZCki1TcVrLH8k3LrF6wBJPlvBwFAl7KTbIACgkQrF6wBJPl vBxO9A/9ECPBI1kyQ4SuM0PayNO3LtazFbIvlp7oBJrBFrvNS664TKWQe4jR97+C sL4BlOQxhKiw0VS/17tmSRl8DrPo+G7camc30aOeKYXB9l05jIf30m9uTigSzovj xiOK9nvjl92hUlAt6gLycMDBjuiC6otI2+poEMMU1pejvAww/uDqsFTjFCrngni3 R4YqUXojVMUFGwRBJaUedwZLLlH0dUmFPXDSUHDiW8eHeDZf3FzYRlz0LTS2Bsgi vF5/aPfyesNJCa8mo/ylrJ2aN2dDEL9cs1agfDTZr3vd46NZY7uzT7IZdkML+2vA gYxo4IHpCZ+ZGuz2Ylr7WlzDXcWJQxfRm5FMl8YlOd5KQxyayNFx3utFwQTdF/B8 Yrc/JlkWvJKe82abmnnnCRKB9ZlHbUnNi9Zg4vL3mBgroSjheTlcAuK64HqoEAOX WCLH5QHPG1Lt5xhMRiWQDOZi//FG1HZKn11yQcL2Y8Jzf+Z6FEZP8FivtHYbLk8a fBs/ElS9rkXuEVkFGSZ7SSuIWYKWg3VG87jlPjimTjF8J+mb8yhH8qRvm23j/BGB i0CBK4Q1yCDKA0JchOA5NogjFqgbr6hPjnTCIH/H2PNd89gvsgVNjRDjp/7q3g3+ bVCkmHs1jDiwZ6P6/6NGiXTSeHu7JNG4Zns9x/lFmSldM7K1oMY= =8FJ6 -----END PGP SIGNATURE-----