-----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-mediawiki-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-mediawiki-15.0-stretch-amd64.iso 2ae4f12dfa1764c83ed8d99571dbbf11609de7587a80418586b856f808ce0370 turnkey-mediawiki-15.0-stretch-amd64.iso $ sha512sum turnkey-mediawiki-15.0-stretch-amd64.iso 35e5f306c8f3fd7fff67b353c8a6cf2aba3873ee2b6685fd693e8615d9b9405079122e8ca4d147862377c6e23c5d3d6fa2ac7ebcc649a62820f21ec9030ca466 turnkey-mediawiki-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-mediawiki-15.0-stretch-amd64.iso.hash turnkey-mediawiki-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-mediawiki-15.0-stretch-amd64.iso.hash turnkey-mediawiki-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAltMlTsACgkQhcJelaFu uU2hJAf/bdlgbC6Qy5PkK1AvC0ScjYsIVVYZdR+uPnfHfEwePoOLbyQMYCrfIlqG MUmCMk169wVMVz21RG5yz2o4Yiv5P3PhuEz1VWgBkShom+ol0iR55PaAHi7U8Ju/ E8i7vqz2kv3910WBKmv6Eh2yxFQJc3ReRY3phzUxLryTqSAogMLXXfCX1cFKU9r9 mlYGwrPZNyDIZozZ54hOgc93lBAhoC21258OJ1qkIn2L5uOa5jXkBEGPApH3VqG8 vcPskG4V9ioSSYgECQka52Ufv7CvxzaQa8joThwZTgiyiSjWf8RBjnyJyOR6SMNl ofRiIN/gZTxVOzxJVbI9I6WzC6QXqw== =v6tY -----END PGP SIGNATURE-----