-----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-foodsoft-15.1-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-foodsoft-15.1-stretch-amd64.iso 6944a207695a7d0a6d23f45e666ffe845571489a2630bc40bdd4ab1694d226c8 turnkey-foodsoft-15.1-stretch-amd64.iso $ sha512sum turnkey-foodsoft-15.1-stretch-amd64.iso 7369015e08842073c581bfb3388b9e7c270d4194b014c48d0d69b797ac46d9957d448ff648455e8e08a5a76fc93b547a4b5c72cf06ac47ab0052c668770830a2 turnkey-foodsoft-15.1-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-foodsoft-15.1-stretch-amd64.iso.hash turnkey-foodsoft-15.1-stretch-amd64.iso: OK $ sha512sum -c turnkey-foodsoft-15.1-stretch-amd64.iso.hash turnkey-foodsoft-15.1-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAl0TG/4ACgkQhcJelaFu uU1lnQgAyW1rwI/RlQ9HeB5jUbomuk5LaNk0rI54MAlMGQfSkl3olzvh7wccTebq cgRDrNK7ICexSSQEs3XrPT1hrBBS+7Gz4ypJC80NReT73Horrzu8b+iXox9G6UWV drDoMrZqfUwyDJ6a/XpkcjcQAMJFrGIUiUKzG7tcDn0RUF6oYUMA7hZjIBvj8Wfl 0GAJFxcvgcR0GnTx11hz3h0xjN4a7XYQVyofmqI25b4dvHCHmAhWJu8iQqFA3ESm 12YK54bj06R7ILeyqN9VuvKOwjhFrEvFY0pa6d18vSe19/M9koeE0F97Lwd6+CgR qikGQgFgSGBr/lxMWkYU0VYej70oDw== =RapJ -----END PGP SIGNATURE-----