-----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 turnkey-dokuwiki-15.0-stretch-amd64.iso.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 turnkey-dokuwiki-15.0-stretch-amd64.iso ab46b43645576da9cacd091aacca64436e6a666848bef7f0ab768663120ccdc6 turnkey-dokuwiki-15.0-stretch-amd64.iso $ sha512sum turnkey-dokuwiki-15.0-stretch-amd64.iso ac4656e2517d3a5389a356d06513e2b5fe0ec2cea3d5e1bb81d73069b9629b64c6d1fe1445b23a790ba53bb0f1c2b8b3dedb1187cbb80255838e213a44af1a3e turnkey-dokuwiki-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-dokuwiki-15.0-stretch-amd64.iso.hash turnkey-dokuwiki-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-dokuwiki-15.0-stretch-amd64.iso.hash turnkey-dokuwiki-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAluD9TkACgkQhcJelaFu uU0dpgf/aa5XmLq7PknO6Sl0w2qyu2RCTjmm6nrp1AEbZcBFMrM+0pfJe5qTY3TY 9FyGozY19rEvL5Oen99JNb1vILcSNt8gHvAgGTklOh/Pbzmg5Ya6QTS0Kv9EOLgV 7bQKu5a4K/S448BMx3TPeHPsBj9pxfqWAZamsVat/iDvyICq34Ac9YAprRtuV7kn wwhzEpAGJ1SG1rgKNlffBITj5peE4+9AabDhYIbgxJVcvrBFy8r6FwU4jGND39zA 1g8muvkXA26KEo0btjgNcKJ8kXED1i4ZrIcDlBYKm4kksLyg/gM4YA9ckGsIdJNZ gifvshXZmbWB2hSoDZpn8j05tJ1jrw== =LxBo -----END PGP SIGNATURE-----